Twilight Imperium: Fourth Edition
738 questions players ask about Twilight Imperium: Fourth Edition, answered in plain words and graded by where the answer comes from. See also the full rulebook.
Updated 2026-10-23.
Golden Rules, Timing and Components
When several players want to resolve abilities at the same time, who goes first?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- Clipper · Community · 2017-12-19
- hooliganj · Community · 2017-12-19
- sigmazero13 · Community · 2017-12-20
- hooliganj · Community · 2018-01-17
- Clipper · Community · 2019-10-29
- theepicwinguy · Community · 2018-01-16disagrees
In the action phase, the active player goes first, then the other players in initiative order counting on from the active player's number and wrapping around. With the active player on 5 and others on 6, 1, 3 and 8, the order is 5, 6, 8, 1, 3. In the strategy and agenda phases, go in order starting with the speaker instead.
If I pass on playing an action card or ability in a timing window, can I still play one later in that window?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- Clipper · Community · 2018-05-10
- hooliganj · Community · 2018-04-28
- germos · Community · 2018-01-15
- AgentDrake · Community · 2021-01-26
- sigmazero13 · Community · 2020-08-26
- TerTer · Community · 2021-01-26disagrees
Yes — passing is not final. Players keep taking turns in the window, and if anyone plays something after you passed, you get another chance. The window only closes once every player passes in a row. This applies to riders, Sabotage, combat cards like Skilled Retreat, and any other timed ability.
Once I resolve an ability in a timing window, can I take it back after my opponent responds?
Several experienced players agree; there is no official ruling on BGG.
- AgentDrake · Community · 2021-03-09
- timo93 · Community · 2021-03-09
No — anything already resolved stays resolved. Your opponent's response just adds to the window; you can answer it with another ability on your next turn in that window, but you cannot withdraw what you already did.
If both players have the same 'after a round of space combat' ability, such as two Exotrireme II dreadnoughts, who resolves first?
The active player resolves one first, then the other player, alternating one ability at a time until nobody wants to resolve more. Each use is a separate resolution, so the players take turns rather than one player resolving all of theirs at once.
Can the defender respond to the active player's Flank Speed with a card like Ceasefire?
One experienced player's reading; no official ruling or wider agreement.
- sigmazero13 · Community · 2020-10-09
Yes — both are played after a system is activated, so they share one timing window. The active player gets the first chance to play, then the others in order, and the window stays open until everyone passes in succession.
How do we order two game effects (not player abilities) that trigger at the same time?
One player relays an emailed FFG ruling; there is no wider confirmation on BGG.
- aegiscruiser · Community · 2017-10-12
The speaker decides the order. Such conflicts are meant to be judged case by case, and absent a specific ruling the speaker resolves the timing question.
If an ability says 'then', do I have to resolve the first part before the part after 'then' happens?
Several experienced players agree; there is no official ruling on BGG.
- sigmazero13 · Community · 2019-06-13
- Somnambulix · Community · 2019-06-17
- IncrediSteve · Community · 2019-09-08
- Clipper · Community · 2019-09-09
Yes — the effect after 'then' only happens if the effect before it was resolved. For example, the Warfare primary gives you no command token back unless you actually removed one from the board. This links effects within a single ability only; a separate paragraph on the same card is its own ability.
Is each paragraph on a card a separate ability, for example the 'Then return this card' line on a promissory note?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2019-06-13
- sigmazero13 · Community · 2019-06-13
- Clipper · Community · 2018-04-25
- sigmazero13 · Community · 2018-01-10
Yes — each paragraph is its own ability and resolves on its own. So a note's final return line still happens even if an earlier paragraph had no effect, and a paragraph you can resolve still works when a different paragraph can't be done.
If an ability tells me to destroy or lose a number of things and I have fewer, do I resolve it partly?
Players disagree; this is the better-supported reading, with no official ruling.
- sigmazero13 · Community · 2018-01-10
- sigmazero13 · Community · 2018-01-10
- pkitty · Community · 2017-12-16
- GrumblingGamer · Community · 2018-01-10disagrees
- Padish · Community · 2018-01-11disagrees
Strictly, no — an ability has to be resolved in its entirety, and only effects joined by 'and' can be resolved separately, so a single effect you cannot fully carry out does nothing. Some players argue for resolving as much as possible. Unstable Planet, for one, was later errata'd to destroy 'up to' 3 infantry.
If an earlier ruling by the developer contradicts the Living Rules Reference FAQ, which one wins?
The game's developer answered this directly on BGG in 2018.
- CreussEmissary · Designer · 2018-03-07
- sigmazero13 · Community · 2018-12-17
The Living Rules Reference and its FAQ win. When FFG released it, the developer said anything he had said before that contradicts the FAQ is overruled by it, and the LRR is the definitive current rule set.
“If something I've said before contradicts something in the FAQ, the FAQ is the winner.”
— CreussEmissary, designer
If I only play the base game, which Living Rules Reference should I use?
Use the current Prophecy of Kings version of the Living Rules Reference and skip the expansion-only parts. It made no major changes to base rules, though rule numbers shifted from v1.3 (59.4 became 68.4, for example). The revised Diplomacy and Construction strategy cards are recommended in base-only games too.
Are the Codex cards official, and do I have to use them?
Several experienced players agree; there is no official ruling on BGG.
- Surge72 · Community · 2020-11-16
- Phoenix1147 · Community · 2020-11-16
- hooliganj · Community · 2023-11-10
- Clipper · Community · 2022-11-09
- Hroost · Community · 2020-06-16
They are official FFG content but optional. Cards marked with the Omega symbol replace the original cards of the same name when you use them; Codex cards without the symbol are additions. The Omega versions are widely recommended, since they were made to fix weak originals.
Can I show my action cards or secret objectives to other players?
Several experienced players agree; there is no official ruling on BGG.
- dromkaken · Community · 2019-06-28
- hooliganj · Community · 2019-06-29
- Sande24 · Community · 2022-02-21
- AgentDrake · Community · 2022-02-21
- hooliganj · Community · 2019-02-23
Yes — you may reveal your own hidden cards to anyone at any time, and they still count as hidden afterwards. The old penalty for revealing a secret objective was removed. This only covers your own hidden components, not hidden information you have merely been allowed to look at.
After looking at another player's action cards (for example with Mageon Implants), can I tell other players what I saw?
Several experienced players agree; there is no official ruling on BGG.
- sigmazero13 · Community · 2019-02-01
- mliszewski · Community · 2019-02-01
Yes — nothing in the rules stops you from sharing or trading that information. Restricting it is a house rule.
Is the action card discard pile face up, and can players look through it?
Yes to both — discards are face up and public, so anyone may search the pile, for example to count how many Sabotages have been played. Secret objectives have no discard pile; discarded or unchosen ones are shuffled back into their deck.
Can I use an effect that destroys units, like Lucky Shot, Unstable Planet or X-89 Bacterial Weapon, on my own units?
Several experienced players agree; there is no official ruling on BGG.
- GAFBlizzard · Community · 2026-07-15
- hooliganj · Community · 2024-06-02
- mliszewski · Community · 2019-09-24
- Clipper · Community · 2019-09-24
- IncrediSteve · Community · 2019-09-24
- TomBoombs · Community · 2018-04-20disagrees
No — the Living Rules Reference FAQ rules that abilities that destroy units can only be used against other players' units and planets. Readings that allowed it by the card's wording were overturned by that FAQ entry.
Are fighters ships?
The rulebook covers this under "Components and Key Concepts".
- MollyMae · Community · 2022-01-24
- hooliganj · Community · 2019-08-20
- NeoTiger · Community · 2019-08-21
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Components and Key Concepts
Yes — the ships are carriers, cruisers, dreadnoughts, destroyers, fighters, war suns and flagships. Fighters count for anything that refers to ships unless it says non-fighter ships. Saar Floating Factories move like ships but are not ships.
Are PDS and space docks ground forces?
The rulebook covers this under "Components and Key Concepts".
- AgentDrake · Community · 2018-12-27
- hooliganj · Community · 2018-12-27
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Components and Key Concepts
No — PDS and space docks are structures, a separate unit type. In the base game, infantry are the only ground forces.
Do faction units like the Muaat Prototype War Sun count as their base unit type?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2022-08-03
- KimAndersen1982 · Community · 2022-08-03
Yes — a faction unit counts as its base unit type for every purpose, so the Prototype War Sun is a war sun. Only the researched upgrade card is a technology: Prototype War Sun II counts as a war sun technology, but the Prototype War Sun I printed on the faction sheet does not.
What do the small arrows and the dots by the combat value on a faction sheet mean?
The rulebook covers this under "Unit Attributes".
- TwoAMArts · Community · 2023-05-08
- jeffwagner · Community · 2023-05-08
- AgentDrake · Community · 2017-11-19
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Unit Attributes
An arrow marks a value that improves when you research that unit's upgrade. Each dot or burst by a combat value is one die the unit rolls, so two dots means two dice.
Are fighter and infantry tokens limited, and what are they for?
Several experienced players agree; there is no official ruling on BGG.
- Share · Community · 2020-02-21
- TerTer · Community · 2020-02-21
- Clipper · Community · 2018-11-15
- hehaheho · Community · 2021-09-24
- McBartsomeville · Community · 2021-09-24
Tokens are unlimited, but each stack of tokens must sit with at least one plastic piece of the same type. So your plastic fighters and infantry limit how many places you can have them, not how many you have. You may swap a plastic piece on the board for a token at any time to free the plastic for use elsewhere.
Is there a limit to how many infantry can be on one planet?
Several experienced players agree; there is no official ruling on BGG.
- sigmazero13 · Community · 2020-08-06
- GIIANT · Community · 2020-08-06
No — any number of infantry can be on a planet. You are only limited by your components, and tokens can stand in for extra infantry.
What happens if I would gain a command token but have none left in my reinforcements?
Several experienced players agree; there is no official ruling on BGG.
- donmakaron · Community · 2018-07-31
- sigmazero13 · Community · 2018-07-31
- IncrediSteve · Community · 2025-08-13
- zamoose · Community · 2025-08-13
You don't gain it. Your 16 command tokens are a hard limit. Tokens you spend, such as for a secondary ability, go back to your reinforcements, not to your command sheet.
What if an effect makes me place a command token from my reinforcements, such as Diplomacy or a retreat, and I have none there?
Several experienced players agree; there is no official ruling on BGG.
- possumman · Community · 2017-12-25
- thomasrobb · Community · 2017-12-25
- DauntlessK · Community · 2020-05-02
- Marcial · Community · 2020-05-02
You take one of your choice from your command sheet instead. Component actions are different: one that cannot be fully resolved cannot be played at all, so it can't target you if it needs a token you don't have.
If my reinforcements are empty, must I take units from the board to place a new one?
No — the rules let you remove a unit from the board to place it elsewhere, but you are not required to. This matters for effects such as L1Z1X Assimilate or Swords to Plowshares.
Setup and Map Building
Can Twilight Imperium 4 be played with two players?
Several experienced players agree; there is no official ruling on BGG.
- Kinan_rod · Community · 2019-06-22
- iswearihaveajob · Community · 2019-06-22
- AgentDrake · Community · 2018-02-27
- possumman · Community · 2018-02-27
- IncrediSteve · Community · 2017-09-06
Not officially — the game is designed for 3 to 6 players and has no two-player rules. Two-player games rely on fan variants.
How are factions, colors and seats chosen at setup?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2018-01-10
- Clipper · Community · 2018-01-10
- hooliganj · Community · 2017-08-16
- Clipper · Community · 2018-03-08
- Old_Man_gi · Community · 2026-03-31
However your group likes — the rules deliberately leave the method open. Free choice, random draw, or dealing each player a few factions to pick from are all fine. If you pick in turn, go clockwise from the speaker, as with other unspecified orders.
When building the galaxy, can I look at my dealt system tiles and choose which one to place?
Yes — the dealt tiles are effectively a hand. You see them all and pick which tile to place and where on each turn, within the placement restrictions, which lets you put poor systems near your opponents.
During galaxy setup, when can anomalies go next to each other, and can they go next to Mecatol Rex?
The rulebook covers this under "Setup (Advanced Game)".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Setup (Advanced Game)
- boxjuggler · Community · 2017-08-24
- TomBoombs · Community · 2017-08-24
- sigmazero13 · Community · 2022-07-18
- MollyMae · Community · 2019-03-29
Anomalies may only go next to another anomaly when you have no other legal option, and holding any non-anomaly tile counts as an option. Matching wormholes follow the same rule. Nothing stops an anomaly from going next to Mecatol Rex.
Are red-backed empty systems anomalies for the setup placement rule?
Several experienced players agree; there is no official ruling on BGG.
- donmakaron · Community · 2019-06-10
- YinBro · Community · 2019-06-10
- IncrediSteve · Community · 2017-12-27
- trud · Community · 2017-12-27
- hooliganj · Community · 2017-12-27
No — only tiles with a red border on the front are anomalies. The red back only matters for dealing, so empty systems may go next to anomalies.
Is it a problem if an alpha or beta wormhole ends up on the map without its partner?
Several experienced players agree; there is no official ruling on BGG.
- hooliganj · Community · 2017-12-08
- maverikki · Community · 2017-11-29
- rubberchicken · Community · 2017-11-29
No — that is a legal galaxy. The lone wormhole just has nothing to connect to, though it is still a wormhole system for Creuss and for agendas or cards that care about wormholes. Swapping tiles to fix it is a house rule.
Is a randomly built galaxy supposed to be balanced?
Several experienced players agree; there is no official ruling on BGG.
- christhomas226 · Community · 2021-02-22
- donmakaron · Community · 2021-02-22
No — the standard placement method isn't meant to produce equal slices, so an uneven map is still correct. Groups wanting balance use fixed or drafted maps.
Is the gravity rift tile only for four-player games?
One experienced player's reading; no official ruling or wider agreement.
- sigmazero13 · Community · 2018-06-13
No — it only shows up in the four-player Learn to Play map because that map uses nearly every tile. In a normal setup it can be dealt at any player count.
In a five-player game, which players get starting trade goods?
In the standard five-player layout, the players whose home systems sit closer to their neighbors receive trade goods as compensation; the others get none. Since the galaxy can't be built until home positions are known, decide who sits where (and so who gets them) first. The Mentak can't pillage these, since nobody is a neighbor during setup.
Do players start the game with commodities, trade goods or action cards?
Several experienced players agree; there is no official ruling on BGG.
- lebowskiachiever · Community · 2020-06-28
- GrumblingGamer · Community · 2020-06-28
- AgentDrake · Community · 2018-11-15
- Clipper · Community · 2018-02-26
- sigmazero13 · Community · 2017-09-01
- sigmazero13 · Community · 2017-09-05
No — nobody starts with commodities, trade goods or action cards. The only exception is the trade goods some players get in the standard five-player setup.
Do factions start with their faction technologies, and does adding them remove any generic technologies?
Several experienced players agree; there is no official ruling on BGG.
- AgentDrake · Community · 2025-08-14
- Dulkal · Community · 2019-12-30
- Volverbot · Community · 2019-12-30
No to both. Faction technologies must be researched or otherwise gained; you only own the starting technologies listed on your faction sheet. The Nekro Virus is the exception, since its two Valefar Assimilator technologies are listed as starting technologies. Non-unit faction technologies, such as the Xxcha's, are simply added to your deck without removing anything.
Can I put all my starting ground forces on one home planet, and do I control the empty one?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2026-04-28
- Marcial · Community · 2026-04-29
- sigmazero13 · Community · 2019-05-15
- csouth154 · Community · 2019-05-15
Yes — split them however you like, all on one planet if you wish. You control every planet in your home system regardless. Put your space dock on the planet that suits your production best.
Which promissory notes does each player start with?
The rulebook covers this under "Setup (Advanced Game)".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Setup (Advanced Game)
- Weltenreiter · Community · 2017-12-17
- sigmazero13 · Community · 2017-12-18
The four generic notes of your color plus your faction's unique note.
Are there errors in the Learn to Play setup illustrations?
One experienced player's reading; no official ruling or wider agreement.
- IncrediSteve · Community · 2017-09-10
- IncrediSteve · Community · 2022-05-17
Yes, two known ones. The Learn to Play shows the wrong resource and influence values for Jord; the planet card and system tile are correct. A starting-units example also doesn't match the faction's real starting units, so use the list on your faction sheet.
How do the two Creuss tiles work at setup, and where do their starting units go?
Several experienced players agree; there is no official ruling on BGG.
- maverikki · Community · 2017-12-10
- Clipper · Community · 2017-12-10
- pkitty · Community · 2024-07-28
- GrumblingGamer · Community · 2019-01-20
- AgentDrake · Community · 2020-05-16
Place the Creuss Gate (tile 17) where a home system would normally go and keep the Creuss home system tile in your play area, off the map but visible. Your starting units go in the home system tile. The Creuss Gate has no planet and so no planet card; the card is for the planet Creuss.
When are galactic events chosen at setup?
Before anything else, including building the galaxy, since events can change how the galaxy and home systems are set up.
Strategy Phase and Strategy Cards
How do strategy cards work in three- and four-player games?
The rulebook covers this under "1. Strategy Phase".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · 1. Strategy Phase
- zamoose · Community · 2022-07-31
- Cacotopos · Community · 2022-07-30
- sigmazero13 · Community · 2017-12-11
- DeePee · Community · 2017-12-12
Each player picks two strategy cards, in a second pass of the selection. In a four-player game every card is taken; with three players two cards remain and collect trade goods as usual.
With two strategy cards, which one sets my initiative, and must I use the lower card first?
Several experienced players agree; there is no official ruling on BGG.
- hooliganj · Community · 2025-08-12
- TreacleMiner · Community · 2025-08-12
- Clipper · Community · 2020-10-09
- mpappy · Community · 2023-03-26
- McBartsomeville · Community · 2023-03-26
Only your lower-numbered card sets your initiative. You still take one turn at a time like everyone else, never two in a row, and you may use either card first.
Does a strategy card's primary ability cost a command token, and does the Leadership secondary?
The rulebook covers this under "Strategic Action".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Strategic Action
- Truji · Community · 2025-03-14
- Cacotopos · Community · 2025-03-15
- AgentDrake · Community · 2021-02-04
- jeffwagner · Community · 2021-02-04
No to both. A primary ability never costs a token. Secondaries cost a strategy pool token, except Leadership's, where you just spend influence: 1 command token per 3 influence.
Which parts of a strategy card's primary ability are mandatory?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2021-08-11
- hooliganj · Community · 2025-10-12
- Falkman · Community · 2025-10-13
- selwyth · Community · 2020-03-24
- McBartsomeville · Community · 2023-01-26
- IncrediSteve · Community · 2020-06-06
Resolve the card top to bottom and do everything it says unless it uses 'may' or 'or'. Leadership's 3 tokens, choosing a Diplomacy system, Trade's replenish (for you and the players you pick), removing a token with Warfare if you can, the first Technology research and naming a new speaker with Politics are all required. Extras that cost you something, such as more Leadership tokens or a second technology for 6 resources, are optional, and Imperial never forces you to pay to score.
Does Leadership let me redistribute the command tokens already on my sheet?
One experienced player's reading; no official ruling or wider agreement.
- hooliganj · Community · 2019-01-26
No — you only place the newly gained tokens in any pools. Redistributing existing tokens happens in the status phase and with the Warfare primary.
How does the revised Diplomacy strategy card work?
Several experienced players agree; there is no official ruling on BGG.
- pkitty · Community · 2020-05-18
- andrewvcook · Community · 2020-05-12
- Clipper · Community · 2020-05-13
- sigmazero13 · Community · 2020-05-12
- zamoose · Community · 2018-09-18
- manatee_x · Community · 2022-07-15
The revised card (in the Living Rules Reference errata, later printings and Prophecy of Kings) lets the primary player also ready up to 2 exhausted planets they control, giving them the same refresh as the secondary. The secondary readies up to 2 exhausted planets you control for a strategy token. The older section text in the LRR wasn't updated, but the errata governs. The revised card is recommended for base-only games too.
Which system can I choose with Diplomacy, and can it be Mecatol Rex?
The rulebook covers this under "1. Strategy Phase".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · 1. Strategy Phase
- AgentDrake · Community · 2023-01-05
- joespleen · Community · 2022-12-31
- DistantOasis · Community · 2022-12-31
- CarrotVision3D · Community · 2022-12-31disagrees
Any system containing a planet you control, except the Mecatol Rex system, which can never be chosen even if you control Mecatol Rex.
What do the Diplomacy tokens do to other players?
Several experienced players agree; there is no official ruling on BGG.
- donmakaron · Community · 2019-03-08
- rosie_187 · Community · 2019-03-08
- McBartsomeville · Community · 2021-08-10
- Dulkal · Community · 2018-01-04
- Jagokok · Community · 2021-06-20
Each other player places a command token from reinforcements in the chosen system, so they can't activate it for the rest of the round. Nothing moves, and the system is not activated. A player who already has a token there doesn't add another. A player with none in reinforcements takes one from their command sheet.
Can Warfare, Counterstroke or other effects remove a token placed by Diplomacy?
Yes — once placed it is an ordinary command token, and the game doesn't track how it got there. Warfare, Counterstroke, Unexpected Action and similar effects can remove it.
Who can I make speaker with Politics, and is it mandatory?
The rulebook covers this under "1. Strategy Phase".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · 1. Strategy Phase
- DrewDecimal · Community · 2019-01-02
- csouth154 · Community · 2019-01-20
- AgentDrake · Community · 2019-01-21
- Jimb0v · Community · 2017-10-12
- sigmazero13 · Community · 2017-09-01
You must choose a new speaker, and it must be someone other than the current speaker; that can be you if you aren't already the speaker. The speaker token doesn't rotate on its own and only changes hands this way, so if nobody takes Politics the speaker stays the same.
Can the speaker token be traded or sold?
Several experienced players agree; there is no official ruling on BGG.
- AgentDrake · Community · 2020-08-05
- IncrediSteve · Community · 2020-08-05
- hooliganj · Community · 2024-04-19
- Marcial · Community · 2024-04-19
- Marcial · Community · 2020-01-26
- sigmazero13 · Community · 2018-08-16
Not in a transaction — it isn't a tradeable component. But the Politics player can take payment, or make deals, in exchange for naming someone speaker. Only trade goods, commodities and promissory notes can change hands, and a payment is a transaction, so it must be with a neighbor at that moment.
Can Politics look at and rearrange the agenda deck before anyone takes Mecatol Rex?
Several experienced players agree; there is no official ruling on BGG.
- AgentDrake · Community · 2019-11-03
- sigmazero13 · Community · 2019-11-04
- Clipper · Community · 2019-10-20
Yes — the agenda deck exists from the start and nothing restricts that part of Politics before the agenda phase begins.
After Politics, is it public whether the agenda cards went to the top or bottom of the deck?
Yes — everyone can see where each card goes; only the faces stay secret. You also can't show the cards themselves to other players, since you may only reveal hidden components you own, but you can tell them what they are (truthfully or not).
Do I pay resources for the structures placed with Construction?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2019-01-01
- Victor Mancha · Community · 2019-01-01
- csouth154 · Community · 2019-06-25
- ajmarshall · Community · 2023-02-08
- halbower · Community · 2020-06-06
No — space docks and PDS have no cost. Construction places them; it isn't production, so production rules don't apply. The primary places a PDS or space dock and then also a PDS.
Can I use the Construction secondary in a system that already has my command token, and does it lock the system?
Several experienced players agree; there is no official ruling on BGG.
- sigmazero13 · Community · 2017-11-27
- Bizud · Community · 2017-11-27
- IncrediSteve · Community · 2020-06-06
- IncrediSteve · Community · 2020-08-10
- zamoose · Community · 2022-01-25
- JesperPersson · Community · 2017-11-19disagrees
Yes, you can use it there: you still spend a strategy token, but it goes to reinforcements instead of a second token in the system. Otherwise the spent token is placed in the system, which then counts as having your token for the rest of the round, so you can't activate it later. Either way you must build on a planet you control.
Can the Clan of Saar use Construction to place a Floating Factory in a system without a planet they control?
Players disagree; this is the better-supported reading, with no official ruling.
- sigmazero13 · Community · 2018-08-01
- hooliganj · Community · 2018-07-29
- sigmazero13 · Community · 2018-07-30
- sigmazero13 · Community · 2018-02-04
- sigmazero13 · Community · 2018-02-04
- Polarstern · Community · 2018-08-01disagrees
No — Construction still needs a planet you control. The Saar choose an eligible planet and the Floating Factory then goes in that system's space area, so an asteroid field or other system without your planet can't get one.
Does the Warfare primary give me two extra command tokens?
Several experienced players agree; there is no official ruling on BGG.
- sigmazero13 · Community · 2019-11-04
- byrdru · Community · 2019-11-04
- UnalignedMagi · Community · 2019-11-05
- sigmazero13 · Community · 2020-07-10
- IncrediSteve · Community · 2020-07-10
No — you remove one of your tokens from the board and gain that same token back to your command sheet, then redistribute. If you have no token on the board to remove, you gain nothing, though you may still play the card.
How does the Warfare secondary work?
Several experienced players agree; there is no official ruling on BGG.
- hooliganj · Community · 2017-11-19
- JesperPersson · Community · 2017-11-19
- GrumblingGamer · Community · 2018-01-07
- Jagokok · Community · 2020-08-08
- Jagokok · Community · 2024-07-06
- pfischer · Community · 2017-12-27
Spend a strategy token to use the Production of one space dock in your home system. It doesn't activate the system and works even if your home system already has your token; if it doesn't, the new ships can still move out later that round. Only one dock can be used, so a Saar player whose docks have left home can't use it.
Must I research a second technology with the Technology primary?
Several experienced players agree; there is no official ruling on BGG.
- McBartsomeville · Community · 2023-01-26
- gpoirier · Community · 2023-01-26
- Clipper · Community · 2020-03-24
No — the second technology costs 6 resources and is optional, even though you must play your strategy card before passing.
What do the Imperial abilities give, and when is Mecatol Rex control checked?
The rulebook covers this under "1. Strategy Phase".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · 1. Strategy Phase
- aegiscruiser · Community · 2019-03-10
- Clipper · Community · 2019-03-10
- Clipper · Community · 2019-11-19
- Clipper · Community · 2017-12-30
- pkitty · Community · 2022-07-22
The primary scores one public objective you qualify for, then gives 1 victory point if you control Mecatol Rex, checked when you perform the strategic action; otherwise you draw a secret objective. The secondary draws one secret objective, not two to keep one. Scoring with Imperial doesn't stop you scoring a public objective in the status phase too.
If Public Disgrace makes a player give back a strategy card, who gets its trade goods?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- hooliganj · Community · 2019-03-28
- AgentDrake · Community · 2019-03-28
- Marcial · Community · 2019-03-28
- MollyMae · Community · 2019-03-28disagrees
Whoever ends up choosing that card. Trade goods are collected once the choice sticks, so they stay on the returned card for the next chooser.
Can Public Disgrace be played against a strategy card swap from Quantum Datahub Node or Imperial Arbiter?
Several experienced players agree; there is no official ruling on BGG.
- Nagual84 · Community · 2021-05-05
- Clipper · Community · 2021-05-05
- IncrediSteve · Community · 2021-01-24
- Clipper · Community · 2021-01-24
No — Public Disgrace triggers when a player chooses a strategy card, and those swaps at the end of the strategy phase aren't choices. Quantum Datahub Node can, however, answer Imperial Arbiter in the same end-of-phase window.
How does Hacan's Quantum Datahub Node swap strategy cards?
Several experienced players agree; there is no official ruling on BGG.
- hooliganj · Community · 2023-11-13
- sshiftyp · Community · 2021-01-25
- sigmazero13 · Community · 2017-09-13
- IncrediSteve · Community · 2017-09-13
- Painkeeper · Community · 2019-10-30
Hacan chooses both which of their cards to give and which face-up card to take. Only the cards move: trade goods were already collected when the cards were picked, and the Naalu 0 token stays with the Naalu, which only their promissory note can move.
Must the Naalu place their 0 initiative token?
Yes — Telepathic has no 'may', so the Naalu always go first in initiative unless they've given the token away with Gift of Prescience.
What does Jol-Nar pay to use Brilliant, and does it work on other strategy cards?
Several experienced players agree; there is no official ruling on BGG.
- korric2000 · Community · 2018-01-02
- sigmazero13 · Community · 2018-01-02
- Clipper · Community · 2018-02-05
- pkitty · Community · 2018-02-05
- McBartsomeville · Community · 2022-05-22
Only the strategy token for the Technology secondary — not the 4 resources — and then they resolve the primary, with the optional second tech for 6 resources. It only applies to the Technology card.
In a three- or four-player game, does Political Stability let you keep both strategy cards?
One experienced player's reading; no official ruling or wider agreement.
- sigmazero13 · Community · 2019-10-30
- sigmazero13 · Community · 2019-10-30
Yes — you keep both and skip choosing next strategy phase. The Third Edition restriction about specific cards doesn't apply in Fourth Edition.
Action Phase and Tactical Actions
How many actions do I take per turn, and in what order must I use action types?
The rulebook covers this under "2. Action Phase".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · 2. Action Phase
- Dulkal · Community · 2020-06-07
- Clipper · Community · 2020-06-07
- Dulkal · Community · 2017-12-13
- Clipper · Community · 2019-06-21
- AgentDrake · Community · 2020-08-08
Exactly one action per turn — strategic, tactical or component — or you pass. You may use them in any order over the round and repeat types on later turns; the only restriction is that you can't pass until you have used your strategy card (both cards in three- and four-player games).
Do I have to move ships or do anything after activating a system?
The rulebook covers this under "Tactical Action".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Tactical Action
- Dulkal · Community · 2020-06-07
- ChimBlade · Community · 2022-05-23
- IncrediSteve · Community · 2024-01-08
- selwyth · Community · 2023-06-04
- IncrediSteve · Community · 2020-09-24
No — only placing the command token is required. Every later step is optional (combat aside, which is mandatory if both sides have ships), so you may activate a system just to fire Space Cannon, to stall, or even one nobody can move into. All the steps happen on that one turn, in order, before play passes on.
Can I activate a system that already contains my command token?
The rulebook covers this under "Tactical Action".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Tactical Action
- GrumblingGamer · Community · 2018-08-22
- Jacky Blue Note · Community · 2018-01-17
- Kazadoom · Community · 2018-01-17
- pkitty · Community · 2020-08-09
- Clipper · Community · 2017-12-19
No — however the token got there (your earlier activation, Diplomacy, Construction's secondary), you can't activate that system again until the token is removed, for example by the status phase, the Warfare primary or Unexpected Action. Other players' activations of nearby systems can still trigger your Space Cannon.
How many systems can I activate in one tactical action, and why do I end up with tokens in many systems?
Several experienced players agree; there is no official ruling on BGG.
- oatesatm · Community · 2017-12-22
- Clipper · Community · 2017-12-22
- MollyMae · Community · 2022-01-24
- christhomas226 · Community · 2021-03-25
- IncrediSteve · Community · 2020-03-15
- zamoose · Community · 2018-10-26
One. Each tactical action spends one tactic token to activate one system. Your tokens accumulate on the board because the action phase goes around the table many times, and they stay until the status phase. Ships in, or produced in, a system holding your token can't move out for the rest of the round.
Does a system I activated stay the active system for the rest of the round?
No — it is the active system only for that tactical action. Your command token stays there until the status phase (or until an effect removes it), which is what stops you activating it again.
Can a system ever hold two of my command tokens?
No — if an effect would place your token in a system that already has one, you don't place a second. Construction says the spent token goes to your reinforcements instead, and other effects work the same way.
Do Diplomacy tokens, retreats or action cards like Ghost Ship or Plague count as activating a system?
No — a system is activated only by placing a command token as the first step of a tactical action. Tokens placed by Diplomacy or a retreat and cards aimed at a system don't activate it, so they don't trigger Space Cannon Offense, Support for the Throne returns or other 'activate' effects.
Can I move into a system, fight, invade and then produce there in the same tactical action?
The rulebook covers this under "Tactical Action".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Tactical Action
- Marcial · Community · 2023-05-02
- tommygunn2011 · Community · 2022-12-27
- christhomas226 · Community · 2020-07-06
- sigmazero13 · Community · 2018-02-08
- GrumblingGamer · Community · 2018-12-30
Yes — the steps run activation, movement, space combat, invasion, then production. Because production comes last, units produced in that action can't join its combat or land on planets that turn. Ships you moved in count toward your fleet pool when you produce.
If another player activates a system with my space dock, can I produce there during their action?
Several experienced players agree; there is no official ruling on BGG.
- sigmazero13 · Community · 2019-11-04
- Weltenreiter · Community · 2019-11-04
No — only the active player resolves the steps of a tactical action. Other players join in only through things like Space Cannon and combat. To build there, activate it on your own turn.
Can I produce in a system that already holds my command token from an earlier turn?
Not with a tactical action, since you can't activate it. Only effects that don't need activation, such as the Warfare secondary in your home system, let you produce there.
Must I resolve my strategy card right away, and do I need command tokens to do it?
The rulebook covers this under "2. Action Phase".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · 2. Action Phase
- IncrediSteve · Community · 2025-08-12
- McBartsomeville · Community · 2025-08-12
- jsciv · Community · 2018-07-29
- Pete Walsh · Community · 2017-12-18
- sigmazero13 · Community · 2017-12-18
No to both. You choose which turn to take your strategic action, as long as it is before you pass. Strategic and component actions need no command tokens, so a player out of tokens can still play their remaining strategy card and then pass.
When a strategy card is played, do other players resolve the secondary right away or on their own turn?
The rulebook covers this under "Strategic Action".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Strategic Action
- THLY · Community · 2025-12-28
- Tanhauser69 · Community · 2025-12-29
- sigmazero13 · Community · 2017-12-11
- argon435 · Community · 2017-12-11
- hooliganj · Community · 2023-02-25
Right away, clockwise from the active player, as part of the active player's strategic action — it doesn't use their turns. Afterwards play passes to the next player in initiative order. End-of-turn effects can't be slipped in between the primary and the secondaries.
Can I still resolve other players' strategy card secondaries after I have passed?
The rulebook covers this under "2. Action Phase".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · 2. Action Phase
- hooliganj · Community · 2017-10-19
- oatesatm · Community · 2018-03-02
- sigmazero13 · Community · 2018-03-02
- Nagual84 · Community · 2020-09-24
Yes — passing ends your turns, not your ability to follow secondaries by spending a strategy token.
When do 'at the start of your turn' abilities happen, and do they work in other phases?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2021-06-14
- Clipper · Community · 2021-06-14
- Clipper · Community · 2020-01-08
Before you choose your action or pass, so they come before activating a system and before anything activation triggers, like Ceasefire. They only exist in the action phase: you don't have turns in the strategy, status or agenda phases.
Are component actions limited to once per round?
No — each one simply uses your action for the turn. The only limits are those printed on the component itself.
Can I play a component action that I can't fully resolve?
No — a component action can only be performed if you can carry out the whole ability. You can't play Signal Jamming on a player with no tokens in reinforcements, use Sling Relay with nowhere to produce, use Uprising on an exhausted planet, or stall with Yssaril's ability without a card to discard. Unstable Planet is different, because its effects are joined by 'and'.
Can I play an action card whose effect would amount to nothing, like Plague on a planet with no infantry?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- sigmazero13 · Community · 2020-03-18
- sigmazero13 · Community · 2020-03-18
- sigmazero13 · Community · 2019-09-23
- Clipper · Community · 2019-10-22
- AgentDrake · Community · 2019-09-16
- sigmazero13 · Community · 2019-09-18
Yes — doing the card's text with a result of zero still counts as resolving it, and 'up to' includes zero. Players relaying an official reply confirmed Plague for zero. You must still meet any targeting requirement and do every part that is possible.
Can I remove my own units from the board when I want to?
No — units leave the board only through the game (destroyed, captured and so on). The one exception is taking a unit off the board when you need to place one and none are in reinforcements.
Status Phase
In the status phase, do I get back all the command tokens I used on the board?
The rulebook covers this under "3. Status Phase".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · 3. Status Phase
- IncrediSteve · Community · 2026-05-22
- Clipper · Community · 2017-12-07
- Painkeeper · Community · 2020-06-24
- sigmazero13 · Community · 2017-09-01
No — tokens on the board go back to your reinforcements, and you then gain just 2 tokens to place on your command sheet. Spent tokens are not refunded, so to grow your supply you need Leadership or similar effects. Newly gained tokens may go in any pool.
In what order do players score objectives in the status phase?
The rulebook covers this under "3. Status Phase".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · 3. Status Phase
- hooliganj · Community · 2019-01-06
- zamoose · Community · 2018-11-09
- Clipper · Community · 2019-12-15
- IncrediSteve · Community · 2019-12-16
In initiative order, not from the speaker. The Naalu's 0 token therefore makes them score first, unless they gave the token away with their promissory note.
Can I score more than one public objective in a single status phase?
The rulebook covers this under "3. Status Phase".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · 3. Status Phase
- IncrediSteve · Community · 2021-12-11
- sigmazero13 · Community · 2019-08-15
- Tigerherz · Community · 2019-08-15
No — each status phase you may score at most one public and one secret objective, both on your scoring turn. The Imperial primary is the main way to score an extra public objective, during the action phase.
Does Arborec's Mitosis place an infantry on every planet they control?
Several experienced players agree; there is no official ruling on BGG.
- Krizzik · Community · 2022-12-28
- HP12C_guy · Community · 2022-12-28
- KimAndersen1982 · Community · 2017-11-29
- TomBoombs · Community · 2018-01-30
- Tregannon · Community · 2018-01-30
No — it places a single infantry on one planet you control each status phase.
If two players have abilities at the same point of the status phase, such as both using Wormhole Generator, who goes first?
Several experienced players agree; there is no official ruling on BGG.
- sigmazero13 · Community · 2019-05-10
- MollyMae · Community · 2019-05-10
Initiative order: the player with the lower initiative number resolves first. The status phase runs in initiative order, and simultaneous abilities follow it.
In what order are action cards drawn in the status phase?
The rulebook covers this under "3. Status Phase".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · 3. Status Phase
- sigmazero13 · Community · 2017-12-19
- pkitty · Community · 2017-12-19
In initiative order, though it rarely matters in practice.
Are control tokens removed along with command tokens in the status phase?
One experienced player's reading; no official ruling or wider agreement.
- brettellmd · Community · 2018-04-05
No — only command tokens come off the board. Control tokens stay on planets until you lose control of them.
Agenda Phase and Voting
When does the agenda phase happen, and when are planets readied?
The rulebook covers this under "4. Agenda Phase".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · 4. Agenda Phase
- hooliganj · Community · 2017-11-26
- hooliganj · Community · 2017-11-26
- Clipper · Community · 2018-04-26
- Santiago · Community · 2017-12-04
- Johnnymaxx · Community · 2017-11-28
Once the custodians token is off Mecatol Rex, the agenda phase follows the status phase every round. Planets ready in the status phase, so they can vote, but not between the two agendas: influence you spend on the first vote is gone for the second. Planets ready again at the end of the agenda phase for the next action phase.
How does voting work, and does it go around the table more than once?
The rulebook covers this under "4. Agenda Phase".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · 4. Agenda Phase
- MollyMae · Community · 2019-02-06
- sigmazero13 · Community · 2019-02-06
- HP12C_guy · Community · 2024-04-14
- hooliganj · Community · 2024-04-14
- CBpegasus · Community · 2017-09-13
Each player votes once per agenda, openly, starting to the speaker's left and ending with the speaker. On your turn you name an outcome and exhaust planets for that many votes, or abstain. Votes are committed as they are declared.
Can I spend only part of a planet's influence when voting?
Several experienced players agree; there is no official ruling on BGG.
- MollyMae · Community · 2019-10-28
- sigmazero13 · Community · 2019-10-28
No — exhausting a planet casts all of its influence as votes. You can only fine-tune your total by choosing which planets to exhaust.
Can trade goods be spent to cast votes?
The rulebook covers this under "4. Agenda Phase".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · 4. Agenda Phase
- Kamakaze · Community · 2017-08-16
- IncrediSteve · Community · 2017-08-16
No — trade goods count as influence for everything except voting. You can still pay them to other players to sway their votes.
Can I abstain, and does casting zero votes let me use Distinguished Councilor or Bribery?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- StrangeBeacon · Community · 2026-02-16
- IncrediSteve · Community · 2020-06-22
- Clipper · Community · 2018-03-02
- ksfga · Community · 2018-03-02
- Clipper · Community · 2021-06-12
- Clipper · Community · 2017-12-17disagrees
You can always abstain, whether or not you have votes available. Casting zero votes is the same as abstaining, so cards that add to votes you cast, like Distinguished Councilor, need at least one real vote first; a single 1-influence planet is enough.
What happens if the vote ties or everyone abstains?
The rulebook covers this under "4. Agenda Phase".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · 4. Agenda Phase
- jeffwagner · Community · 2018-01-05
- Clipper · Community · 2018-01-05
- Clipper · Community · 2018-08-05
- Old_Man_gi · Community · 2022-01-18
- denmla · Community · 2018-01-06disagrees
The speaker picks which tied outcome resolves; at 0 to 0 that means any eligible outcome. The agenda is never discarded for lack of votes. The speaker's choice is not a vote, so it doesn't count as voting for that outcome, but riders that predicted it still pay out.
Can a speaker who can't vote, such as the Nekro Virus or a speaker who played a rider, still break ties?
Several experienced players agree; there is no official ruling on BGG.
- sigmazero13 · Community · 2019-09-10
- sigmazero13 · Community · 2019-09-10
- Sande24 · Community · 2022-02-21
- Clipper · Community · 2017-12-12
- hooliganj · Community · 2018-12-16
Yes — breaking a tie isn't voting, so the speaker always does it.
Does an agenda's outcome affect everyone, or only the players who voted for it?
Several experienced players agree; there is no official ruling on BGG.
- zamoose · Community · 2019-01-05
- hooliganj · Community · 2019-01-05
- IncrediSteve · Community · 2021-05-16
Everyone, unless the card itself limits the effect to players who voted a certain way, as Mutiny does. Abstaining doesn't exempt you.
What is the difference between a law and a directive?
The rulebook covers this under "4. Agenda Phase".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · 4. Agenda Phase
- Clipper · Community · 2020-01-12
- Marcial · Community · 2020-01-12
- Ender02 · Community · 2023-02-08
- ajmarshall · Community · 2023-02-08
If a law's For (or elect) outcome wins, the card stays in play as a lasting effect, even if part of it is one-time. A law's Against outcome, and either outcome of a directive, resolves once and the card is discarded.
How do 'Elect Planet' agendas work, and can an uncontrolled planet be chosen?
Several experienced players agree; there is no official ruling on BGG.
- ksfga · Community · 2020-03-09
- sigmazero13 · Community · 2018-07-01
- Clipper · Community · 2020-10-18
- sigmazero13 · Community · 2017-12-12
- sigmazero13 · Community · 2020-05-02
- IndyBart · Community · 2020-03-09disagrees
There's no nomination step: on your vote you back an eligible planet someone already named, name a new one, or abstain. Only planets some player controls are eligible, and only those that already have the required trait, since electing never changes a planet's trait.
When must Rider action cards be played, and can we discuss the agenda first?
Several experienced players agree; there is no official ruling on BGG.
- jeffwagner · Community · 2017-11-30
- sigmazero13 · Community · 2017-11-30
- hooliganj · Community · 2017-11-29
- hooliganj · Community · 2018-04-27
- hooliganj · Community · 2020-03-03
- Mordenthral · Community · 2017-11-29disagrees
Riders go after the agenda is revealed and before the first vote is cast. Talking and negotiating don't close that window, and the speaker can't rush to the vote to shut riders out: everyone gets their chance to respond.
Do 'when an agenda is revealed' effects like Veto and Quash come before Riders?
Yes — 'when' effects (Quash, Veto, Political Favor, Political Secret) resolve first, then 'after' effects (Riders, Assassinate Representative, Galactic Threat), then voting. Veto and Political Favor were errata'd to 'when' timing to match Quash, so they cancel an agenda before anyone has played riders on it.
In what order do players play riders and other agenda-phase cards?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- Clipper · Community · 2019-10-13
- Clipper · Community · 2019-10-14
- sigmazero13 · Community · 2019-10-21
- Clipper · Community · 2018-06-06
- MollyMae · Community · 2019-05-19
- Ragnarwarbar · Community · 2019-10-15disagrees
Starting with the speaker and going clockwise, each player plays one card or passes, and it keeps going around until everyone passes in a row. Passing doesn't lock you out: if someone plays a card afterwards, you can still play one.
Do I have to reveal my Rider and its prediction when I play it?
Several experienced players agree; there is no official ruling on BGG.
- hooliganj · Community · 2025-07-10
- Falkman · Community · 2025-06-29
- sigmazero13 · Community · 2018-01-02
- Geoff Watson · Community · 2020-10-12
- AgentDrake · Community · 2018-11-12
- AgentDrake · Community · 2025-08-17
Yes — action cards are read aloud and played openly, so the whole card, reward included, and your prediction are public. The prediction is made when you play the card, before voting, never after the result is known.
Can one player play several riders on the same agenda, on different outcomes?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- MATTPROV3 · Community · 2017-11-17
- sigmazero13 · Community · 2017-10-24
- Clipper · Community · 2018-01-03
- ksfga · Community · 2019-02-06
- mliszewski · Community · 2019-02-06
- pkitty · Community · 2017-10-24disagrees
Yes — FFG confirmed by email that you can play several riders in the same vote. Each rider is played on its own, so each can predict a different outcome, letting you cover both For and Against.
Who can play Bribery, and when?
Only a player who actually voted. Per its errata, Bribery is played after the speaker votes and each trade good spent adds a vote to the outcome you voted for. A player who played a rider can't vote and so can't use it, nor can a speaker who abstained, but others who voted still can. If an Argent speaker votes first with Zeal, Bribery comes right after that vote.
Can a player hit by Assassinate Representative still play riders?
Several experienced players agree; there is no official ruling on BGG.
- TomBoombs · Community · 2018-08-05
- sigmazero13 · Community · 2018-05-07
- TomBoombs · Community · 2018-05-07
Yes — it only stops that player voting; unlike Political Secret, it doesn't block action cards.
When an agenda outcome and a rider both award points, which resolves first?
The agenda's outcome resolves first, then the riders that predicted it. This can decide the game if the agenda's points push someone to the goal.
How do Confusing and Confounding Legal Text interact with riders and Drive the Debate?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2021-08-25
- Clipper · Community · 2018-01-08
- sigmazero13 · Community · 2018-01-08
- Clipper · Community · 2023-02-27
- hooliganj · Community · 2021-03-22
- McBartsomeville · Community · 2023-10-30
Both only work on 'Elect Player' agendas, and only the player originally elected can play them. They act before the outcome resolves, so riders and agenda-phase secrets like Drive the Debate use the final elected player.
What exactly does Political Secret stop the affected player from doing?
For that agenda, they can't vote, play action cards, or use optional abilities, those with 'may' or another choice. Mandatory and passive abilities still apply, such as Saar's Scavenge, Nekro's Propagation or Hacan's Arbiters, and laws they own still work.
If Political Secret is played and the agenda is then Quashed or Vetoed, does it carry over to the replacement?
Players disagree; this is the better-supported reading, with no official ruling.
- sigmazero13 · Community · 2018-06-06
- sigmazero13 · Community · 2018-06-19
- sigmazero13 · Community · 2018-05-30
- sigmazero13 · Community · 2018-05-30
- Clipper · Community · 2018-05-30disagrees
No — discarding the agenda counts as resolving it, so Political Secret ends and is wasted. The replacement is handled from scratch: it can be Quashed in turn, and players can make fresh transactions for it. Since they share timing, Xxcha may also Quash before anyone plays Political Secret on them.
Can the Xxcha Quash more than once, including the replacement agenda?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2019-02-18
- AgentDrake · Community · 2019-02-18
- Marcial · Community · 2019-02-18
- Clipper · Community · 2021-06-27
- sigmazero13 · Community · 2019-09-04
- csouth154 · Community · 2019-02-18disagrees
Yes — Quash can be used on any newly revealed agenda as long as Xxcha pays a strategy token each time, including the replacement Quash itself reveals. A Veto card, by contrast, is one card and one use.
When does the Nekro make its Galactic Threat prediction, and what can it predict?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2018-02-22
- sigmazero13 · Community · 2018-02-22
- sigmazero13 · Community · 2018-02-24
- Clipper · Community · 2018-02-15
- Clipper · Community · 2020-08-26
- Clipper · Community · 2020-11-17
In the same window as riders: after 'when revealed' effects such as Veto or Quash, before anyone votes. It predicts an outcome; abstaining isn't one. The Nekro may also play riders on the same or different outcomes.
Does Galactic Threat gain a technology if nobody voted for the predicted outcome?
Several experienced players agree; there is no official ruling on BGG.
- sigmazero13 · Community · 2017-10-16
- sigmazero13 · Community · 2018-03-26
- hooliganj · Community · 2018-08-05
- Clipper · Community · 2021-08-28
- IncrediSteve · Community · 2021-12-12
- dontnormally · Community · 2018-03-26disagrees
No — the Nekro gains a technology from a player who voted for that outcome. If it won through the speaker's tie-break, Committee Formation or a Legal Text change, with no player voting for it, there is nobody to take from.
Can I exhaust planets for resources or technology specialties during the agenda phase?
Several experienced players agree; there is no official ruling on BGG.
- UnalignedMagi · Community · 2019-08-27
- Clipper · Community · 2020-01-08
- SwissQueso · Community · 2020-01-08
- Clipper · Community · 2019-09-20
Yes — nothing limits planets to voting then. You can spend them on things like Inheritance Systems or research from a Technology Rider, but those planets then can't vote. Exhausted cards other than planets don't ready at the end of the agenda phase.
Agenda Cards
If Shard of the Throne, The Crown of Emphidia or Holy Planet of Ixth is discarded or re-elected, does the previous owner lose its victory point?
No — a point from these laws is lost only through the condition printed on the card. If the law is discarded some other way, such as Repeal Law, or re-elected via Miscount Disclosed, the old owner keeps the point; a newly elected owner gains one, and the same player re-elected scores again.
Do I lose The Crown of Emphidia if I lose a planet I control in another player's home system?
No — only planets in your own home system count for it. Likewise, A New Constitution only exhausts the planets each player controls in their own home system.
If players are tied for the most or fewest points when Seed of an Empire resolves, who scores?
Several experienced players agree; there is no official ruling on BGG.
- Weltenreiter · Community · 2018-06-25
- aegiscruiser · Community · 2018-06-25
- Clipper · Community · 2018-06-25
- ajmarshall · Community · 2021-09-03
- Clipper · Community · 2021-09-03
- Clipper · Community · 2021-08-11
Every tied player gains the point. Effects aimed at the player with the most or fewest points hit everyone tied; the speaker doesn't break this kind of tie. Trading Support for the Throne after the votes can change who qualifies before it resolves. Under Colonial Redistribution, by contrast, the planet's controller chooses one player among those tied for fewest points.
When Miscount Disclosed forces a revote on a law, does that law stay in effect during the revote?
Several experienced players agree; there is no official ruling on BGG.
- TomBoombs · Community · 2021-08-20
- kaiteinomen · Community · 2019-08-06
- Clipper · Community · 2019-08-06
- Clipper · Community · 2021-08-20
- Clipper · Community · 2021-08-14
- MercifulBiscuit · Community · 2019-01-23disagrees
Yes — the law remains in play until the revote resolves, so Representative Government, for example, still limits everyone to 1 vote. The old outcome is replaced only when the new one resolves, so a new Demilitarized Zone planet replaces the old one rather than adding a second.
How does the revote from Miscount Disclosed work?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2021-08-11
- sigmazero13 · Community · 2018-05-10
- Clipper · Community · 2018-05-10
- TomBoombs · Community · 2019-01-23
- Marcial · Community · 2021-09-02
- sigmazero13 · Community · 2018-01-02
First vote on Miscount Disclosed, with riders predicting only which law is chosen. Then vote on that law as if it had just been revealed, so Veto, Quash and a fresh round of riders can be played on it. Planets are not readied in between, and the revote doesn't replace the phase's second agenda, so a phase can have three votes.
How does a secret objective made public by Classified Document Leaks work?
While leaked it is a public objective and no longer counts toward its owner's secret objectives, so they may hold another secret. Nobody can score it twice, its original owner included. If the law is later discarded, the card returns to its owner as a secret, and anyone who scored it keeps the point.
What does Enforced Travel Ban do, and does it stop Space Cannon or the Creuss?
For: alpha and beta wormholes have no effect on movement, but the systems stay adjacent for everything else, so Space Cannon still fires through them, as the errata confirms. It also cancels the adjacency from Lost Star Chart for movement. The Creuss ignore it, since no game effect can prevent Quantum Entanglement. Against: every PDS in or next to a system with any wormhole, gamma and delta included, is destroyed.
Which units does The Ixthian Artifact destroy?
All units in the Mecatol Rex system, ships included, and 3 units of each player in every adjacent system (all of them if a player has fewer). Adjacency is the normal kind for everyone: a matching wormhole on Mecatol counts, but Creuss's Quantum Entanglement doesn't extend it. With Wormhole Reconstruction in play, alpha and beta systems both count.
Does Arms Reduction touch ships other than dreadnoughts and cruisers, and what about capacity?
Several experienced players agree; there is no official ruling on BGG.
- pkitty · Community · 2018-03-25
- Weltenreiter · Community · 2018-03-25
- hooliganj · Community · 2017-12-18
- Clipper · Community · 2021-08-11
No — For only cuts dreadnoughts beyond 2 and cruisers beyond 4. Afterwards check capacity; fighters and ground forces that no longer fit are removed, which is not the same as being destroyed.
When Fleet Regulations passes, what happens to fleet pool tokens above 4 and ships over the limit?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2019-05-01
- ascuris · Community · 2017-12-03
- hooliganj · Community · 2017-12-03
Excess fleet tokens return to reinforcements; you can't move them to other pools. Any ships over the new limit must be removed immediately. Abilities that raise fleet limits, like Letnev's, still add on top.
How does Anti-Intellectual Revolution work?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2021-08-11
- Clipper · Community · 2018-01-15
- eurofabio · Community · 2018-01-15
- McBartsomeville · Community · 2022-01-28
- IncrediSteve · Community · 2022-01-29
For: after you research a technology you must destroy one of your non-fighter ships; fighters don't count. It is an after-research effect, not a cost, so a player with no such ships can still research. The Nekro are unaffected, since Propagation gains tokens instead of researching. Against applies only at the start of the very next strategy phase, then the card is discarded.
Does Distinguished Councilor still add 5 votes under Representative Government?
Players disagree; this is the better-supported reading, with no official ruling.
- Fuzzychub · Community · 2024-06-20
- sigmazero13 · Community · 2018-07-01disagrees
Not with the newer printing, which says players can't cast additional votes. Under the original wording it did, since you still cast votes; groups with older cards should follow the reprint.
Does Public Execution stop the elected player voting in the next agenda phase, and does Yssaril's Crafty save their hand?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2021-08-11
- McBartsomeville · Community · 2024-11-17
- pkitty · Community · 2024-11-17
- MollyMae · Community · 2019-02-26
No to both. The voting ban only covers that agenda phase. The discard comes from being elected, not from the hand limit, so Yssaril must discard too. Crafty does beat effects that cap hand size, such as Executive Sanctions.
Under Shared Research's Against outcome, what if I have no command tokens in reinforcements?
Then you place nothing — the outcome places a token only if able, so you don't take one from your sheet.
When is Committee Formation used, and does it combine with riders?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2021-08-11
- IncrediSteve · Community · 2017-10-27
- Dalek5 · Community · 2017-10-28
- McBartsomeville · Community · 2024-05-01
- Clipper · Community · 2021-08-28
Just before voting, after the 'when' and 'after' windows, so riders are already down. The agenda it settles still counts as one of the phase's two. Riders that predicted the chosen player pay out, so playing a rider and then electing that player works. The Nekro can hold and use it despite not voting, and Political Secret doesn't stop it.
If Judicial Abolishment comes up with only one law in play, can that law be saved?
Several experienced players agree; there is no official ruling on BGG.
- halbower · Community · 2020-12-14
- sigmazero13 · Community · 2020-12-14
- hooliganj · Community · 2017-11-24
No — that law is the only eligible outcome. Abstaining isn't an outcome, and if nobody votes the speaker must break the 0-0 tie by choosing it.
Can Minister of War be used after any action?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- IncrediSteve · Community · 2018-02-05
- Clipper · Community · 2018-02-05
- Mattchew222 · Community · 2018-02-07
- mAIOR · Community · 2018-02-05disagrees
Yes — its owner can discard it after any action to remove one of their command tokens from the board and take another action; it doesn't need to follow an action that removed a token. A player relays an FFG email confirming this.
When is Minister of Peace used, and can other after-activation abilities follow it?
Several experienced players agree; there is no official ruling on BGG.
- hooliganj · Community · 2019-02-03
- Clipper · Community · 2019-02-03
- Clipper · Community · 2021-10-30
- BradleySigma · Community · 2021-11-12
Right after the system is activated, before any ships move. Once it ends the active player's turn, no other abilities in that window can be resolved, per the developer's later FAQ ruling.
What triggers Minister of Industry?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2018-12-02
- sigmazero13 · Community · 2017-12-18
- Clipper · Community · 2017-12-18
Placing a space dock, which means putting one on the board from reinforcements. A Saar Floating Factory moving into a system doesn't trigger it, but a dock placed by a Construction Rider in the agenda phase does, payable only with planets you haven't exhausted.
How does Minister of Sciences interact with the Technology strategy card?
Several experienced players agree; there is no official ruling on BGG.
- Painkeeper · Community · 2018-01-09
- pfischer · Community · 2018-01-09
Its owner pays no resources when researching through either Technology ability: two free techs with the primary, one with the secondary.
Under Regulated Conscription, how much do fighters and infantry cost?
One experienced player's reading; no official ruling or wider agreement.
- Clipper · Community · 2021-08-11
1 resource each; the law removes the two-for-one from their cost.
How does Swords to Plowshares work on a planet with one infantry, and how often can Mentak pillage the result?
Half of one rounded up is one, so the lone infantry is destroyed and you gain 1 trade good. All the trade goods from Swords to Plowshares or Compensated Disarmament arrive in a single step, so Mentak can pillage each affected neighbor only once.
Which rolls can The Crown of Thalnos reroll?
Several experienced players agree; there is no official ruling on BGG.
- Marcial · Community · 2021-09-03
- Clipper · Community · 2021-09-03
- sigmazero13 · Community · 2018-05-17
- Clipper · Community · 2018-12-10
- dmark312 · Community · 2019-06-25
- The_Chiprel · Community · 2019-06-17disagrees
Only combat rolls, not Anti-Fighter Barrage, Bombardment (L1Z1X Harrow included) or Sardakk's Courageous to the End. You may reroll units that look doomed, because hits aren't assigned until rolling ends; any unit whose reroll fails to hit is destroyed, even if its other dice hit.
If Homeland Defense Act is discarded, must players remove PDS beyond 2 per planet?
One experienced player's reading; no official ruling or wider agreement.
- DrewDecimal · Community · 2020-05-23
Yes — the normal limit of 2 PDS per planet applies again, and extras are removed.
Do gamma and delta wormholes count for Wormhole Research and Wormhole Reconstruction?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2021-08-11
- Clipper · Community · 2021-08-13
- sigmazero13 · Community · 2018-06-29
- hooliganj · Community · 2018-06-29
For Wormhole Research, ships in any wormhole system, gamma and delta included, qualify, but each player researches at most one technology; only ships in alpha or beta systems are then destroyed. Wormhole Reconstruction's Against outcome hits every wormhole system, delta included, which a player confirmed with the developer as intended.
Can a home planet, or the planet with Holy Planet of Ixth, be elected for Demilitarized Zone or Colonial Redistribution?
Several experienced players agree; there is no official ruling on BGG.
- KingOfStumps · Community · 2020-08-15
- GenusPongo · Community · 2020-08-15
- Clipper · Community · 2021-08-11
- Clipper · Community · 2021-08-11
Home planets can't: they have no trait, and these agendas elect a cultural planet. The Holy Planet of Ixth planet is still cultural, so it is a legal choice. A Demilitarized Zone planet given away by Colonial Redistribution gets no units, since none can be placed there.
Why vote against Conventions of War, and does it stop X-89 Bacterial Weapon?
For makes it a law that nobody may bombard cultural planets, so players who rely on Bombardment vote Against, at the cost of their action cards. X-89 can still be used on cultural planets under it.
What happens with Archived Secret if the elected player already holds the maximum secret objectives?
One experienced player's reading; no official ruling or wider agreement.
- Clipper · Community · 2021-08-11
They draw one, look at it and discard it right away.
When an attached agenda says 'exhaust this card', do I exhaust the planet?
One experienced player's reading; no official ruling or wider agreement.
- Clipper · Community · 2019-07-14
No — 'this card' always means the card the text is on, so you exhaust the attached agenda and the planet stays ready.
How do Minister of Commerce, Industry, Peace and War interact with other effects?
Minister of Commerce still pays 1 trade good per neighbor when your commodities were already full, since you still replenished. Minister of Industry lets you produce in that system right after placing the dock. Minister of Peace's owner needn't have units in the activated system. Minister of War isn't an action itself, so with Fleet Logistics you can take three actions in a turn.
Does Minister of Sciences waive the 2 resources for L1Z1X's Inheritance Systems?
One experienced player's reading; no official ruling or wider agreement.
- Clipper · Community · 2021-08-11
No — those 2 resources pay to ignore prerequisites, not to research the technology.
Does Shard of the Throne change hands if both sides' ground forces are wiped out?
Several experienced players agree; there is no official ruling on BGG.
- halbower · Community · 2017-12-17
- Clipper · Community · 2017-12-17
- Darkmancer · Community · 2018-02-13
- Pete Walsh · Community · 2020-05-30
No — if neither player has ground forces left, nobody won the combat, so the Shard stays put. It also never moves through combats that don't happen, such as landing unopposed or bombarding the last defenders.
How do the Research Team agendas work?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2018-02-13
- Weltenreiter · Community · 2018-02-13
- halbower · Community · 2020-01-15
- sigmazero13 · Community · 2020-01-15
- halbower · Community · 2018-02-13
- Clipper · Community · 2018-02-13
You exhaust the Research Team card, not the planet, to skip a prerequisite, so the planet can still be spent. They don't give the planet a technology specialty, so they don't count for objectives about specialty planets.
In what order are agenda-phase secret objectives scored?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2020-12-19
- hooliganj · Community · 2020-12-19
In speaker order, clockwise; it only matters if several players would win from the points, a tie that also goes clockwise from the speaker.
When must The Prophecy of Ixth be discarded?
Only when you use a unit's Production and don't produce 2 fighters with it. Skipping production, or placing units by other effects like Integrated Economy, keeps the card.
If an agenda exhausts a planet with a Research Team attached, is the Research Team exhausted too?
One experienced player's reading; no official ruling or wider agreement.
- Clipper · Community · 2021-08-11
No — exhausting a planet doesn't exhaust its attachment, so the Research Team can still be used.
Objectives and Victory Points
Can I score objectives if another player controls a planet in my home system?
The rulebook covers this under "Objectives and Victory Points".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Objectives and Victory Points
- AgentDrake · Community · 2021-12-26
- Clipper · Community · 2020-02-20
- pfischer · Community · 2018-03-07
- IncrediSteve · Community · 2022-01-02
- hooliganj · Community · 2017-11-20
Not public objectives — you must control every planet in your home system to score one, and the Imperial card doesn't override that. Everything else still works: secret objectives, Imperial's Mecatol Rex point, agendas, relics, Support for the Throne and the custodians token. Enemy ships blockading your home system don't stop you; only losing a planet there does.
Does the limit of three secret objectives include ones I've scored?
The rulebook covers this under "Objectives and Victory Points".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Objectives and Victory Points
- ajmarshall · Community · 2020-02-23
- Webhead123 · Community · 2018-06-24
- Marcial · Community · 2020-02-21
- Marcial · Community · 2019-10-29
- hooliganj · Community · 2018-01-06
Yes — you may have three in total, scored and unscored together, so three is also the most you can score. If you go over, you return an unscored one; scored objectives are never discarded.
How do I get more secret objectives after setup?
The rulebook covers this under "1. Strategy Phase".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · 1. Strategy Phase
- Normative · Community · 2019-02-07
- SwissQueso · Community · 2019-02-07
- Clipper · Community · 2019-11-19
Mainly through Imperial: its secondary draws one for a strategy token, and its primary draws one if you don't control Mecatol Rex. You draw one card, not two to keep one; that's only at setup.
For objectives that require spending resources, influence, tokens or trade goods, does earlier spending count?
Several experienced players agree; there is no official ruling on BGG.
- zamoose · Community · 2020-07-02
- AgentDrake · Community · 2021-03-27
- axibis · Community · 2026-05-22
- AgentDrake · Community · 2020-09-28
- IncrediSteve · Community · 2018-07-25
- Clipper · Community · 2019-01-05
No — you pay the full amount in one go when you score the objective, as its cost; nothing spent earlier in the round counts. Trade goods can stand in for resources or influence there, though a 'spend trade goods' objective needs actual trade goods. If you score one through Imperial, you pay right then in the action phase.
Can I mark an objective as soon as I meet it and score it later, or keep a point if I stop qualifying?
Several experienced players agree; there is no official ruling on BGG.
- sigmazero13 · Community · 2019-03-14
- Clipper · Community · 2019-03-14
- IncrediSteve · Community · 2020-11-09
- isterbat · Community · 2025-07-17
- Marcial · Community · 2019-10-02
- RedEyedGhost · Community · 2019-10-02
You must qualify at the moment you score. Status-phase objectives check the condition then, so a blockade you lifted earlier doesn't count for Cut Supply Lines. Once scored, points are kept even if you stop qualifying; only effects that say so, like Support for the Throne returning, take points away.
Do revealed public objectives stay in play, and can several players score the same one?
Several experienced players agree; there is no official ruling on BGG.
- AgentDrake · Community · 2020-06-21
- hooliganj · Community · 2020-06-21
Yes — they stay for the rest of the game unless an effect removes them. Any number of players can score each, but each player scores a given objective only once.
How and when are action-phase secret objectives scored?
The rulebook covers this under "Objectives and Victory Points".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Objectives and Victory Points
- Cacotopos · Community · 2021-02-28
- IncrediSteve · Community · 2020-12-06
- hooliganj · Community · 2018-01-02
- sigmazero13 · Community · 2018-08-09
- MollyMae · Community · 2019-06-26
Secret objectives marked Action Phase are scored the moment you meet them, even on another player's turn and even after you have passed. You may score several in a turn but only one per combat or step: one in a space combat and another in the ground combat that follows is fine, two from the same combat is not.
If two players could each score an action-phase objective in the same combat, who scores first?
Several experienced players agree; there is no official ruling on BGG.
- Armand7734 · Community · 2020-10-02
- Clipper · Community · 2020-10-02
Whichever condition is met first. Destroying a flagship or war sun happens during a combat round, before the combat ends and has a winner. If both trigger at the same moment, the active player goes first.
Can I score a public objective with Imperial and another in the same round's status phase?
Several experienced players agree; there is no official ruling on BGG.
- MercifulBiscuit · Community · 2019-01-24
- Clipper · Community · 2019-01-24
- IncrediSteve · Community · 2017-11-27
- pkitty · Community · 2022-07-22
Yes — they are separate scoring windows. Imperial scores a public objective immediately even if it says status phase, and you can still score one more public objective in the status phase.
Can Imperial's point for controlling Mecatol Rex be gained more than once?
One experienced player's reading; no official ruling or wider agreement.
- Clipper · Community · 2022-01-31
Yes — each time you resolve the Imperial primary while controlling Mecatol Rex you gain it, separately from the one-time custodians token point.
Do Space Cannon, Bombardment or landing on an empty planet count as winning a combat for objectives?
Several experienced players agree; there is no official ruling on BGG.
- MollyMae · Community · 2024-07-17
- hooliganj · Community · 2024-07-17
- Pete Walsh · Community · 2020-05-30
- dr_worm_md · Community · 2018-03-04
- AgentDrake · Community · 2021-03-17
- sigmazero13 · Community · 2022-04-16
No — a combat is a space combat or a ground combat, and you win when your units remain and the opponent's don't. Destroying ships with Space Cannon during movement, bombarding away all defenders, or landing unopposed involves no combat, so it can't score 'win a combat' objectives or take Shard of the Throne. A Naalu Foresight escape means no combat happened either. A space dock or PDS alone doesn't make a combat.
Does a ship destroyed by Space Cannon plus Direct Hit, or fighters lost for capacity after Space Cannon kills their carrier, count for Turn Their Fleets to Dust?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- 0 hr · Community · 2018-08-01
- 0 hr · Community · 2018-08-01
- IncrediSteve · Community · 2017-09-06
- IncrediSteve · Community · 2017-09-07
- Clipper · Community · 2021-08-07
- IncrediSteve · Community · 2017-09-07disagrees
No to both. Direct Hit's own text destroys the ship, not the Space Cannon, and fighters lost to the capacity rule weren't destroyed by Space Cannon; FFG confirmed both by email. Space Cannon fire resolves player by player, so only the player whose own shots meet the condition scores.
Can I score an objective for beating 'the player with the most victory points', like Spark a Rebellion, if I'm the leader?
Several experienced players agree; there is no official ruling on BGG.
- bleached_lizard · Community · 2017-09-13
- possumman · Community · 2017-09-17
- sigmazero13 · Community · 2017-09-21
- IncrediSteve · Community · 2021-04-15
- Marcial · Community · 2026-08-29
- csouth154 · Community · 2019-03-05
Only if you share the lead: when players are tied for most points, each of them counts as having the most. If you lead alone, nobody else qualifies. The check is made at the time of the combat.
When several players are tied for the most or fewest victory points, which of them does an effect apply to?
All of them — every tied player counts. Tied agenda votes are different, since the speaker breaks those.
If I beat the Shard of the Throne holder, who leads on points, can I score Spark a Rebellion and take the Shard?
Several experienced players agree; there is no official ruling on BGG.
- Pete Walsh · Community · 2021-01-25
- Clipper · Community · 2021-01-25
- Marcial · Community · 2021-01-26
Yes, both. Players differ on whether the objective scores before the Shard moves or after, but either way you won a combat against the leader.
Do other players' home planets count for 'non-home system' objectives like Subdue the Galaxy?
Several experienced players agree; there is no official ruling on BGG.
- hooliganj · Community · 2018-01-06
- Agone07 · Community · 2018-01-06
- AgentDrake · Community · 2021-03-27
- sigmazero13 · Community · 2018-03-27
- MollyMae · Community · 2018-03-27
No — 'non-home' excludes every home system, including other players' that you control. A separate objective covers holding a planet in another player's home system.
Do ships in Mecatol Rex's system, or in an anomaly, count as adjacent to it for objectives?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2019-07-31
- Somnambulix · Community · 2019-07-31
- zamoose · Community · 2026-04-22
- StormCrow42 · Community · 2018-08-05
- Clipper · Community · 2018-08-05
- csouth154 · Community · 2019-09-12
No — a system isn't adjacent to itself. Intimidate Council needs ships in two different systems next to Mecatol Rex, and ships inside an anomaly don't count as adjacent to it.
What counts for technology-colour objectives like Diversify Research and Master the Sciences?
Several experienced players agree; there is no official ruling on BGG.
- Weltenreiter · Community · 2019-08-06
- jradziew · Community · 2019-08-06
- Clipper · Community · 2022-09-16
- GamerdadMich · Community · 2018-01-03
- Clipper · Community · 2018-12-16
- Xelvonar · Community · 2018-01-01
Only researched technology cards with a colour. Diversify Research needs two of each of two colours (four total); Master the Sciences two of each of the four colours. Unit upgrades have no colour, and planets with technology specialties are not technologies.
Do technologies the Nekro copy with Valefar Assimilator count for objectives?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- stephen986 · Community · 2017-09-19
- hooliganj · Community · 2018-03-19
- sigmazero13 · Community · 2017-09-05
- sigmazero13 · Community · 2018-03-07
- hooliganj · Community · 2017-09-05disagrees
Yes — a copied technology counts with its colour and type, so the Nekro can score faction-technology objectives that way. But when a copied faction upgrade covers a generic one, like Dreadnought II, only one of the two counts.
Does the Muaat Prototype War Sun count as a war sun for objectives?
Several experienced players agree; there is no official ruling on BGG.
- sigmazero13 · Community · 2020-06-29
- Clipper · Community · 2022-08-03
Yes — it is the Muaat war sun under another name, as its subtitle shows.
Can Support for the Throne be given away even if it hands someone the winning point, and can the giver attack the holder?
Several experienced players agree; there is no official ruling on BGG.
- moys17 · Community · 2018-05-22
- Bonitatem · Community · 2018-05-22
- csouth154 · Community · 2019-02-22
- PotBellyNinja · Community · 2018-03-20
- sigmazero13 · Community · 2018-03-20
- Dulkal · Community · 2018-03-20disagrees
Yes to both. Trading it is a normal transaction, and a ban is a house rule. Only the holder risks losing it, by activating a system with the giver's units, any system, even by mistake. The giver can attack freely.
If I reveal a secret objective to score it but turn out not to qualify, do I lose it?
Several experienced players agree; there is no official ruling on BGG.
- sigmazero13 · Community · 2018-03-20
- Kulebri · Community · 2018-03-20
- Dulkal · Community · 2018-03-20
- iswearihaveajob · Community · 2018-03-20disagrees
There's no rule for it in Fourth Edition. Most players keep the objective, now known to everyone, and score it later as normal.
Are there common clarifications for specific objectives like Establish a Perimeter, Unveil Flagship, Become the Gatekeeper or Make an Example of Their World?
Several experienced players agree; there is no official ruling on BGG.
- Technopinky · Community · 2017-11-25
- IncrediSteve · Community · 2019-09-10
- ajmarshall · Community · 2019-12-18
- pkitty · Community · 2021-11-08
- Clipper · Community · 2018-06-10
Yes: 5 PDS satisfies 'own 4 PDS'; Unveil Flagship needs your flagship to survive the combat; Become the Gatekeeper needs ships in both an alpha and a beta system, as Creuss's Quantum Entanglement only makes them adjacent; Rule Distant Lands needs planets near two different players' home systems; and destroying the last ground forces with L1Z1X's Harrow counts for Make an Example, since Harrow is Bombardment.
When do I discard the 5 action cards for Form a Spy Network?
Several experienced players agree; there is no official ruling on BGG.
- Sande24 · Community · 2017-11-19
- IncrediSteve · Community · 2017-11-19
- csouth154 · Community · 2019-05-02
When you score it in the status phase, as its cost, without resolving the cards. You can't discard cards freely at other times.
How does the Total War variant's commodity tally work?
Several experienced players agree; there is no official ruling on BGG.
- Fone Bone10 · Community · 2026-07-25
- THLY · Community · 2026-07-25
- zamoose · Community · 2025-08-06
- zamoose · Community · 2025-08-06
- Aarontu · Community · 2025-08-06
Each time you destroy enemy units you take commodities equal to their combined cost and keep them on a planet in your home system; with 10 there you may take the component action for a point. Whoever takes that home system takes the stored commodities too. Units captured without being destroyed, as by the Vuil'raith hero, add nothing.
Space Combat
Does the 0 on the ten-sided die count as 0 or 10?
Several experienced players agree; there is no official ruling on BGG.
- ninjamatic3000 · Community · 2019-04-22
- Becq · Community · 2017-09-06
- Sande24 · Community · 2017-09-04
- Marcial · Community · 2024-12-08
- michaelwood · Community · 2021-01-01
10 — the Living Rules Reference FAQ confirms the 0 face is a 10, the best result. Otherwise units with combat 10 could never hit.
Does a 10 always hit or a 1 always miss?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2024-09-22
- HP12C_guy · Community · 2024-09-22
No — there are no automatic hits or misses. A roll hits when the result, after modifiers, equals or beats the unit's combat value, so with enough bonuses even a 1 can hit.
Can more than two players fight in the same space combat?
The rulebook covers this under "Space Combat".
- phunkysai · Community · 2024-01-12
- IncrediSteve · Community · 2024-01-12
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Space Combat
No — a space combat is always between two players, and it continues until only one player's ships remain or one side retreats. Other players can still have ground forces or structures on planets in that system.
How does Sustain Damage work, and is it optional?
The rulebook covers this under "Space Combat".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Space Combat
- Clipper · Community · 2017-12-06
- sigmazero13 · Community · 2017-12-06
- sigmazero13 · Community · 2017-12-07
- Old_Man_gi · Community · 2025-04-13
- sigmazero13 · Community · 2018-02-20
Before hits are assigned, a unit with Sustain Damage may cancel one hit; it is placed on its side as damaged and can't do so again until repaired in the status phase. It is optional: you may skip it and assign the hit to the unit, destroying it. An undamaged dreadnought therefore needs two hits, which can come in different rounds.
Can Sustain Damage save a ship from Exotrireme II, Assault Cannon or other 'destroy' effects?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- Jatta Pake · Community · 2017-12-01
- hooliganj · Community · 2017-12-01
- sigmazero13 · Community · 2017-12-01
- garfielder · Community · 2017-09-19
- IncrediSteve · Community · 2017-09-08
- csouth154 · Community · 2019-03-06
No — Sustain Damage only cancels hits, and these effects destroy units without producing hits. For Exotrireme II, the Sardakk player chooses which ships (up to 2) are destroyed; it is used after a round of combat, and each Exotrireme II may use it.
When Dimensional Splicer or Yin's Devotion hits my ship, who picks the target, and can I use Sustain Damage?
Several experienced players agree; there is no official ruling on BGG.
- Bonitatem · Community · 2018-05-20
- IncrediSteve · Community · 2018-05-20
- The_Chiprel · Community · 2020-02-26
- Jatta Pake · Community · 2017-12-07
- Clipper · Community · 2017-12-07
- Clipper · Community · 2019-06-24
The Creuss or Yin player chooses which of your ships takes the hit, and assigns it immediately when the ability resolves. Only that ship can use its own Sustain Damage to cancel it; you can't move the hit elsewhere.
Are 'start of combat' and 'start of the first combat round' abilities in the same timing window, and how often do they happen?
Yes — they are the same window, before Anti-Fighter Barrage, and ordered by the usual timing rules. Later rounds only have 'start of a round' windows, so start-of-combat abilities like Assault Cannon happen once per combat. Anything destroyed in that window, such as a destroyer hit by Dimensional Splicer, never fires its barrage.
If both players have start-of-combat abilities like Assault Cannon or Skilled Retreat, which resolves first?
The active player's, then the other player's, with each trigger re-checked when its turn comes. So the attacker's Assault Cannon can push the defender below 3 non-fighter ships and deny the defender's own Assault Cannon, and it destroys a ship before the defender's Skilled Retreat moves the rest away. Assault Cannon is mandatory when it applies and can never destroy a fighter.
With rerolls or die modifiers like the Hacan flagship or Crown of Thalnos, must I decide before rolling my other ships?
Several experienced players agree; there is no official ruling on BGG.
- russe · Community · 2023-03-13
- sigmazero13 · Community · 2020-06-09
- Clipper · Community · 2020-06-10
- Ndjcirnc · Community · 2023-02-17
- Clipper · Community · 2021-08-03
- sigmazero13 · Community · 2017-12-18superseded
No — since the Codex rules update, rerolls and modifiers are applied after you have rolled all your dice, so you see every result before choosing. The older reading of deciding ship type by ship type is out of date.
Who can retreat from a space combat, and does an announced retreat still happen if the enemy is wiped out?
The rulebook covers who announces first; players agree on the rest, citing the current Living Rules Reference.
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Space Combat
- Clipper · Community · 2018-10-27
- MATTtheGM · Community · 2022-04-18
- brettellmd · Community · 2022-04-18
- Clipper · Community · 2019-01-28
- sigmazero13 · Community · 2017-12-11superseded
Either player can announce a retreat, the attacker included, but the defender announces first, and if the defender retreats the attacker can't that round. You can only announce one if you have a legal system to retreat to (so Rout needs one too). If your opponent has no ships left after the round, the combat simply ends and your retreat doesn't happen; answers from 2017 saying you still had to leave predate that rule.
Where can my ships retreat to?
The rulebook covers this under "Space Combat".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Space Combat
- DarkThomy · Community · 2021-10-16
- McBartsomeville · Community · 2021-10-16
- sigmazero13 · Community · 2018-09-22
- Clipper · Community · 2018-09-22
- Clipper · Community · 2018-02-15
To an adjacent system with no other player's ships that contains your units or a planet you control; Dark Energy Tap drops the second requirement. Movement bonuses don't matter, as a retreat always goes to an adjacent system. Under Enforced Travel Ban, alpha and beta wormholes give no adjacency for a retreat. Whether a nebula is a legal destination is disputed; see the nebula question under movement.
When my ships retreat, can they pick up ground forces from my planets in the combat system?
Players agree the Living Rules Reference v1.2 changed this, superseding the developer's 2018 ruling; no newer official post on BGG.
- GrumblingGamer · Community · 2019-06-13
- hooliganj · Community · 2019-06-13
- sigmazero13 · Community · 2019-06-13
- Clipper · Community · 2021-01-16
- CreussEmissary · Designer · 2018-10-31superseded
- Grunt778083 · Community · 2021-01-16disagrees
Yes, under the current Living Rules Reference: retreating ships move and transport units like any other movement, so they may pick up ground forces from planets there within their capacity. The old rule of lifting ground forces into space when you announce the retreat was removed in v1.2 (some translations still have it), which superseded the developer's 2018 answers about choosing units at announcement.
What happens to units that can't go with a retreat?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- McBartsomeville · Community · 2021-10-18
- sigmazero13 · Community · 2018-07-17
- sigmazero13 · Community · 2018-07-18
- 0 hr · Community · 2018-07-18
- Padish · Community · 2018-01-11
- Clipper · Community · 2019-06-09
All your ships with a move value retreat together. Fighters and ground forces in the space area that the retreating ships can't carry are destroyed, even if a space dock could have supported them. Ground forces on planets are not destroyed; they stay, and the winner may bombard and invade them.
How does Skilled Retreat differ from a normal retreat?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- JamesG · Community · 2018-03-12
- sigmazero13 · Community · 2018-10-29
- harven · Community · 2025-04-16
- sigmazero13 · Community · 2019-02-28
- Marcial · Community · 2019-02-28
- Clipper · Community · 2018-03-10disagrees
It isn't a retreat in rules terms but a move, so Intercept can't cancel it (only Sabotage), and the usual transport rules apply: ships can pick up ground forces from planets, and fighters move with the fleet without needing capacity. Capacity and fleet limits apply again at the destination, and you choose which excess units to lose. It can go to any adjacent system without other players' ships, including the one the attacker came from.
Can I retreat or Skilled Retreat into, or carry units out of, systems that contain my command token?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- Clipper · Community · 2021-01-25
- Clipper · Community · 2019-03-18
- Clipper · Community · 2020-01-21
- sigmazero13 · Community · 2018-10-30
- Clipper · Community · 2022-07-18
- IncrediSteve · Community · 2021-01-16
Yes on both counts. A normal retreat or Skilled Retreat may go into a system that already has your command token; you just don't place a second one. And retreating ships can carry units out of the combat system even if your token is there, because the transport restriction excludes the active system, whoever activated it.
What happens if neither side can ever win a space combat?
The Living Rules Reference FAQ says the attacker must retreat. If the attacker has nowhere legal to go, players generally treat those ships as destroyed.
Can two players agree not to fight when their ships share a system, or not to roll or assign hits?
The rulebook covers this under "Space Combat".
- zamoose · Community · 2021-07-30
- Marcial · Community · 2021-07-30
- to_mars · Community · 2021-12-10
- IncrediSteve · Community · 2021-12-10
- hooliganj · Community · 2025-08-15
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Space Combat
No — when two players have ships in the same space area (or ground forces on the same planet), combat happens and continues until one side is gone; rolling and assigning hits are mandatory and a deal can't override the rules. Retreating, after at least one round, is the only legal way out. Ships and ground forces never fight each other.
In space combat, who assigns hits first?
Nobody first — both players assign hits in the same step. Assigning hits isn't an ability, so no initiative order applies; cancelling hits, as with Sustain Damage, is.
Can a unit with Sustain Damage be destroyed by two hits in one round?
Several experienced players agree; there is no official ruling on BGG.
- AgentDrake · Community · 2019-09-29
- Clipper · Community · 2023-03-11
- Clipper · Community · 2017-12-07
- Truji · Community · 2025-12-28
- TomKyrre · Community · 2025-12-28
Yes — Sustain Damage cancels one hit, not every hit. If you must take more hits than you can cancel and that unit is what's left, the next hit destroys it; it is not a second hit point. Non-Euclidean Shielding lets it cancel two.
If my carrier is destroyed in combat, are the fighters and ground forces it carried destroyed at once?
Several experienced players agree; there is no official ruling on BGG.
- hooliganj · Community · 2024-10-16
- McBartsomeville · Community · 2022-10-16
- Dubledox · Community · 2022-10-17
- Weltenreiter · Community · 2021-04-18
- donmakaron · Community · 2021-04-18
- zamoose · Community · 2018-11-28
No — capacity isn't checked during combat, so they stay while it lasts. When combat ends, each player checks capacity and removes fighters and ground forces in space that are no longer supported. If all your ships are destroyed, the units they carried go with them. If the side left in space has only fighters it can no longer support, they are removed and the combat counts as a draw.
If the defender leaves with Skilled Retreat or Foresight, does the attacker still invade, and has anyone won a combat?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2020-01-18
- IncrediSteve · Community · 2018-01-06
- hooliganj · Community · 2025-05-31
- Bigland · Community · 2017-11-23
- McBartsomeville · Community · 2023-10-03
- MollyMae · Community · 2018-08-20
The attacker carries on to bombardment, invasion and production as normal. But no combat was won: after a normal retreat the player left in the system wins, whereas Foresight happens before combat and Skilled Retreat leaves no winner, so 'win a combat' objectives and effects don't trigger. The destination system isn't activated, so nobody fires Space Cannon or invades there.
What happens to the attacker's ships if the invasion fails?
The rulebook covers this under "Producing Units".
- ifaeb · Community · 2024-01-13
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Producing Units
They stay in the system; nothing makes them leave. While they remain, the defender's space dock there is blockaded and can only produce ground forces.
If Space Cannon Offense destroys all of the active player's ships, did a space combat take place?
No — Space Cannon Offense happens at the end of movement, outside space combat. If it destroys every ship, no combat occurs and 'win a combat' effects don't apply.
Do Morale Boost, faction modifiers and rerolls affect Anti-Fighter Barrage, Space Cannon, Bombardment or Ambush?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2021-02-03
- Nurgle84 · Community · 2021-02-04
- hooliganj · Community · 2017-11-17
- IncrediSteve · Community · 2018-01-07
- sigmazero13 · Community · 2018-06-27
- Surge72 · Community · 2020-12-09
No — only rolls made against a unit's combat value are combat rolls. Anti-Fighter Barrage, Space Cannon, Bombardment, Mentak's Ambush and Sardakk's Courageous to the End are ability rolls, so Morale Boost, Sardakk's +1, Jol-Nar's Fragile and effects that reroll combat rolls don't touch them. Anti-Fighter Barrage happens only in the first round.
Can I roll all my combat dice together when my ships have different combat values?
The rulebook covers this under "Space Combat".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Space Combat
- Chigatterun · Community · 2020-08-13
- AgentDrake · Community · 2020-08-13
- JaHeit · Community · 2021-01-06
Only for ships with the same combat value; ships with different values roll separately, so each die stays with the unit that rolled it. Modifiers are added to the die result, so +1 makes a hit easier.
Do ships that announced a retreat still roll that round?
Several experienced players agree; there is no official ruling on BGG.
- DarthHenryAllen · Community · 2018-02-07
- sigmazero13 · Community · 2018-02-07
- hooliganj · Community · 2018-08-29
Yes — announcing a retreat doesn't stop you firing; you roll normally and then leave in the retreat step. Retreating in that step also escapes Exotrireme II, which acts at the end of the round.
Can ground forces that retreated with my ships, or moved with Skilled Retreat, land on a planet in the new system?
Several experienced players agree; there is no official ruling on BGG.
- GrumblingGamer · Community · 2019-06-14
- donmakaron · Community · 2019-06-14
- GamerdadMich · Community · 2018-06-27
- Normative · Community · 2018-01-08
- csouth154 · Community · 2019-09-11
- Clipper · Community · 2018-02-02
No — landing only happens in the invasion step of a tactical action in the active system, and a retreat doesn't activate anything. They stay in space on your ships.
When both players have end-of-round abilities, like Yin's Devotion and Sardakk's Exotrireme II, who goes first?
Several experienced players agree; there is no official ruling on BGG.
- Singhilarity · Community · 2020-10-25
- hooliganj · Community · 2020-10-25
- Clipper · Community · 2020-10-26
- Clipper · Community · 2020-11-17
- acegravity · Community · 2020-05-02
The active player resolves one first, then the players alternate one ability at a time; each Exotrireme II is a separate ability.
Invasion and Ground Combat
What happens if I move ships into a system where the opponent has only ground forces on planets?
No space combat — ships only fight ships. You may then bombard and commit ground forces in the invasion step; ships alone do nothing to enemy planets.
After winning a space combat, must I invade the planets in that system?
Several experienced players agree; there is no official ruling on BGG.
- MollyMae · Community · 2019-01-31
- DaveS · Community · 2019-02-01
- Bigland · Community · 2017-08-21
- sigmazero13 · Community · 2018-08-17
No — committing ground forces is optional. You can leave your ships in space and go straight to production, even sharing the system with enemy planets.
Can I invade several planets in the same system in one tactical action?
Several experienced players agree; there is no official ruling on BGG.
- Pete Walsh · Community · 2023-12-04
- Marcial · Community · 2023-12-04
- SFRR · Community · 2025-08-15
- Teconrad · Community · 2017-12-30
- sigmazero13 · Community · 2017-12-31
- sigmazero13 · Community · 2017-12-04
Yes — in the invasion step you commit ground forces to any or all planets in the active system, declaring which go where. Each ground force lands on only one planet, so two planets need at least two ground forces. Four infantry arriving at an empty two-planet system can put two on each and take both.
Can ground forces already on one planet invade another planet in the same system?
Several experienced players agree; there is no official ruling on BGG.
- StrangeBeacon · Community · 2026-09-26
- Cacotopos · Community · 2026-09-27
- GrumblingGamer · Community · 2018-12-30
- Clipper · Community · 2018-12-30
Only if a ship with capacity picked them up into the space area during the movement step. Only ground forces in the space area can be committed, so units still on a planet when the invasion step begins stay put.
Can I land ground forces on a planet, even one I control, outside the invasion step?
No — ground forces land on planets only by being committed in the invasion step of a tactical action, so you must activate the system even to drop infantry on your own planet. Movement abilities used as component actions skip the tactical action steps and can't land anyone.
Can fighters or dreadnoughts take part in an invasion?
The rulebook covers this under "Invasion and Ground Combat".
- Falcone1983 · Community · 2017-11-22
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Invasion and Ground Combat
Fighters can't invade (barring specific faction abilities), and ships take part only through abilities like Bombardment. You need ground forces in the active system's space area to commit.
Is there a ground combat if Bombardment or Space Cannon Defense wipes out one side first?
The rulebook covers this under "Invasion and Ground Combat".
- ajmarshall · Community · 2020-05-09
- ajmarshall · Community · 2019-10-21
- donmakaron · Community · 2019-10-03
- Clipper · Community · 2019-10-03
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Invasion and Ground Combat
No — ground combat only happens if both players still have ground forces on the planet after those steps. If Bombardment kills every defender, you land unopposed; if Space Cannon Defense kills every invader, nobody lands. Structures don't count as defenders, and start-of-combat abilities such as Yin's Indoctrination can't be used without a combat.
Space Cannon, Bombardment and Anti-Fighter Barrage
Does Space Cannon Offense happen if the active player moves nothing into the active system?
Several experienced players agree; there is no official ruling on BGG.
- Padish · Community · 2017-12-20
- halbower · Community · 2017-12-20
- csouth154 · Community · 2019-09-05
- IncrediSteve · Community · 2024-03-04
- Marcial · Community · 2024-03-04
Yes — it is a step of every tactical action, not something movement triggers, so enemy Space Cannon can hit the active player's ships already in the system. Equally, you may activate a system purely to fire your own Space Cannon into it. You must finish moving before anyone fires, so you can't see the results first.
During Space Cannon Offense, who can shoot at whom?
Several experienced players agree; there is no official ruling on BGG.
- hooliganj · Community · 2017-11-26
- hooliganj · Community · 2017-11-27
- AgentDrake · Community · 2022-01-15
- Marcial · Community · 2024-03-04
- csouth154 · Community · 2019-10-02
- Crikrunner · Community · 2017-11-27disagrees
The active player fires first and chooses which other player's ships in the active system take the hits. Then each other player with Space Cannon in range fires, but only at the active player's ships — a third party can't shoot the defender or help one side of someone else's battle.
Can a ship use Sustain Damage against Space Cannon hits?
Yes — Sustain Damage can cancel any hit produced against the unit, Space Cannon included. It only fails against effects that destroy a unit without producing a hit.
When can Experimental Battlestation be used, and what can it shoot?
The game's developer answered this directly on BGG in 2018.
- CreussEmissary · Designer · 2018-11-14
- Clipper · Community · 2018-11-14
- sigmazero13 · Community · 2018-11-15
- Clipper · Community · 2019-09-05
- 0 hr · Community · 2018-11-14superseded
Only when another player's ships actually move during the movement step of a tactical action: not on retreats, not when nothing moves in, and never on your own turn as active player. It fires as part of Space Cannon Offense and can target only the active player's ships in the active system. An earlier emailed ruling allowing any movement, retreats included, was walked back by the developer.
Can Space Cannon fire at ships outside the active system, such as ships passing by, retreating, or in a neighboring system?
Several experienced players agree; there is no official ruling on BGG.
- Marcial · Community · 2021-12-23
- csouth154 · Community · 2019-10-02
- sigmazero13 · Community · 2019-10-02
- toskk · Community · 2025-11-20
- IncrediSteve · Community · 2026-03-28
- IncrediSteve · Community · 2022-05-06
No — Space Cannon only ever targets the active system: Offense after movement, Defense during invasion. PDS II's Deep Space Cannon and the Xxcha flagship let a unit in an adjacent system fire into the active system, never out of it. Ships passing through systems in range or retreating into one aren't shot at. A unit with the ability that moved into the active system fires as normal.
When several players fire Space Cannon Offense, are they resolved together?
No — one player at a time, starting with the active player and then the others in order. Each player's roll, hit assignment, Sustain Damage and responses like Direct Hit finish before the next fires, so a unit destroyed earlier, such as an Xxcha flagship, never gets to shoot.
Can Space Cannon with range reach through a wormhole?
One experienced player's reading; no official ruling or wider agreement.
- IncrediSteve · Community · 2024-03-04
Yes — wormhole adjacency counts for Space Cannon range, including the delta wormhole on the Creuss flagship, and even when a law turns off wormholes for movement. The Nomad flagship's mech adjacency is not a wormhole, so it doesn't extend Space Cannon.
Is Bombardment mandatory, and can I bombard without landing ground forces?
Several experienced players agree; there is no official ruling on BGG.
- blondlostime · Community · 2019-02-07
- AgentDrake · Community · 2019-02-07
- AgentDrake · Community · 2019-02-07
- hooliganj · Community · 2017-10-19
- blondlostime · Community · 2019-02-07disagrees
The Bombardment step always happens, but using the ability is optional: the active player may bombard. You can also bombard with no ground forces to land and simply not take the planet, since committing ground forces is optional too.
How many extra dice does Plasma Scoring add to Bombardment and Space Cannon?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- MATTPROV3 · Community · 2018-02-11
- Clipper · Community · 2018-02-11
- Weltenreiter · Community · 2018-07-24
- Clipper · Community · 2018-08-27
- csouth154 · Community · 2019-06-02
- sigmazero13 · Community · 2018-02-11disagrees
One extra die per use of the ability, not per unit or per planet. Bombardment is a single step, so one extra die however many planets you bombard. Space Cannon Offense rolls one die per unit in range plus one from Plasma Scoring. Each planet's Space Cannon Defense is a separate roll, so each can get the extra die.
Can the active player fire their own Space Cannon, including PDS II in an adjacent system, into the system they activate?
Several experienced players agree; there is no official ruling on BGG.
- Platfus · Community · 2022-05-27
- McBartsomeville · Community · 2022-05-27
- Clipper · Community · 2021-04-18
- Clipper · Community · 2019-06-02
- TimmoWarner · Community · 2021-04-28
- NeoTiger · Community · 2019-06-23
Yes — every player with Space Cannon in range of the active system may fire, the active player first. You can activate a system purely so your PDS II next door can shoot enemy ships there, even a supernova if someone like Muaat activated it. Fighters in the space area are valid targets; ground forces in space and Saar Floating Factories are not.
Which PDS fire Space Cannon Defense during an invasion?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2021-06-14
- IncrediSteve · Community · 2021-06-14
- hooliganj · Community · 2022-07-19
- hooliganj · Community · 2025-08-05
Only PDS on the planet being invaded. A PDS on another planet in the system, or a PDS II in an adjacent system, doesn't fire then. A PDS can fire Space Cannon Offense and later Space Cannon Defense in the same tactical action.
Can one ship bombard several planets, or split its dice between them?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2020-12-27
- Klyvefrog · Community · 2020-12-27
- IncrediSteve · Community · 2022-04-30
- Clipper · Community · 2020-11-17
- bearsfan1978 · Community · 2020-11-17
- zamoose · Community · 2019-09-09
No — there is one Bombardment step per invasion, and before rolling you declare which planet each unit bombards; a unit bombards a single planet with all its dice. You may pick any planet in the system, since bombardment comes before ground forces are committed. A war sun removes Planetary Shield from other players' units in its system, so all your bombarding units can then hit planets with PDS.
How many times does a PDS fire in one tactical action?
Once at Space Cannon Offense, after movement, however many ships came in, plus once more at Space Cannon Defense if ground forces are committed to its planet. PDS II improves range and combat value, not the number of shots. A PDS needs no ground forces with it to fire, and having your command token in its system doesn't stop it.
Do Ceasefire or Disable stop Space Cannon?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2018-06-03
- TomBoombs · Community · 2018-06-04
- Clipper · Community · 2018-05-17
- sigmazero13 · Community · 2018-05-17
Ceasefire only stops ships moving in, so Space Cannon, Bombardment, invasion and production all still happen. Disable is played at invasion and only shuts off PDS on the planets being invaded; Space Cannon Offense has already been fired by then.
Movement, Anomalies and Wormholes
Can I move ships partway toward the active system, or move ships that can't reach it?
The rulebook covers this under "Movement Details".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Movement Details
- csouth154 · Community · 2020-07-20
- Clipper · Community · 2020-07-20
- Jatta Pake · Community · 2017-11-21
- j76goatboy · Community · 2017-11-21
No — every ship that moves must end its move in the active system, along a path no longer than its move value. A ship that can't get there doesn't move at all, so you can't stop short, for example to set up Space Cannon.
Can a ship leave the active system and come back in the same move, for example to fetch ground forces?
Yes — a ship that starts in the active system may move out and back in if its move value allows, and a ship may pass back through a system it already crossed. None of the systems it leaves or starts from may hold your command token, apart from the active system, and enemy ships still block the path.
What blocks my ships from moving through a system?
The rulebook covers this under "Movement Details".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Movement Details
- AgentDrake · Community · 2021-10-03
- Clipper · Community · 2019-01-31
- Skootur · Community · 2017-10-16
- gpoirier · Community · 2025-09-11
- hooliganj · Community · 2017-12-18
Any other player's ships in it, fighters included. The Living Rules Reference dropped the old exception for fighters, so even Fighter I next to a space dock blocks. Your own command tokens don't block passing through, and neither do enemy ground forces or PDS. A deal can't let you through; only effects like Light/Wave Deflector, In the Silence of Space or the Yssaril flagship do.
Can I move more ships into a system that already has my command token on a later turn?
Several experienced players agree; there is no official ruling on BGG.
- mliszewski · Community · 2018-06-21
- islan · Community · 2018-06-21
- Clipper · Community · 2020-01-12
No — ships only move into the active system, which stops being active when that tactical action ends, and you can't activate a system holding your token. A ship with move 1 can't reach a system two away in one action either; Warfare removes a token but doesn't extend movement.
Do ships move one at a time, and can I wait to see gravity rift rolls before moving others?
Several experienced players agree; there is no official ruling on BGG.
- MerlinGM · Community · 2022-05-22
- IncrediSteve · Community · 2022-05-22
- Clipper · Community · 2018-03-17
- Sande24 · Community · 2019-10-29
- RedEyedGhost · Community · 2019-10-29
- DarkThomy · Community · 2022-05-22disagrees
No — you declare every moving ship and they move together; rift rolls come after. Fleet pool isn't checked in systems you pass through, only at the end, and you remove any excess then. The Creuss flagship is the exception: it may move before or after your other ships, but not in the middle of their moves.
How do gravity rifts work: when do I get +1 move and when do I roll?
The rulebook covers this under "Movement Details".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Movement Details
- sigmazero13 · Community · 2017-10-19
- Clipper · Community · 2019-04-11
- sigmazero13 · Community · 2017-10-19
- Clipper · Community · 2021-09-15
- jboot8 · Community · 2021-04-18
A ship whose path moves out of or through a rift gets +1 move for that path, one per rift, even if it could otherwise only just reach the rift. Each ship that leaves or passes through a rift rolls, and is removed on a 1-3. A ship that stops in a rift gains nothing and doesn't roll until it later leaves. Trace the whole path first, then check it against the boosted move value.
When a carrier leaves a gravity rift, do the fighters and ground forces it carries roll too?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- maverikki · Community · 2017-11-29
- supercube3000 · Community · 2018-07-14
- Clipper · Community · 2019-09-24
- hooliganj · Community · 2019-06-04
- Clipper · Community · 2021-07-31
- MrDeadfisch · Community · 2017-11-26disagrees
No — only the ships moving out roll. Declare which ship carries what before rolling; if a carrier is lost, everything it carries goes with it, and other carriers' spare capacity can't save them. Units lost this way are removed rather than destroyed, so effects like Infantry II don't trigger.
How do nebulae work for movement, and does Gravity Drive help?
The rulebook covers this under "Movement Details".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Movement Details
- Old_Man_gi · Community · 2025-04-13
- hooliganj · Community · 2025-04-13
- Thecostcutter · Community · 2018-02-10
- Alwin · Community · 2018-02-10
A ship may only enter a nebula if it is the active system, so it can never pass through one. A ship leaving a nebula has move 1, and bonuses like Gravity Drive or Flank Speed are then added on top.
Can ships retreat or Skilled Retreat into a nebula?
Players disagree; this is the better-supported reading, with no official ruling.
- Clipper · Community · 2019-04-29
- hooliganj · Community · 2019-04-22
- sigmazero13 · Community · 2019-04-22
- Kazadoom · Community · 2021-02-22disagrees
- ajmarshall · Community · 2021-02-22disagrees
- Shomeking · Community · 2021-02-22disagrees
Disputed. A 2019 developer ruling relayed by players says yes, because the nebula restriction applies to the movement step. Others read the nebula rule literally, since a nebula is only enterable when it is the active system, and say only the Empyrean can. The relayed ruling is the stronger source.
Who can move into or through a supernova?
Nobody normally. Muaat's faction ability lets their ships move through supernovas; Magmus Reactor lets ships move into and stop in one. A Nekro who copies Magmus Reactor can move into or out of a supernova but not through it. A supernova never destroys ships already there, so losing the technology later changes nothing.
If I lose Antimass Deflectors while my ships sit in an asteroid field, or place units in an anomaly, what happens?
Several experienced players agree; there is no official ruling on BGG.
- MollyMae · Community · 2022-01-09
- IncrediSteve · Community · 2022-01-09
- Cacotopos · Community · 2020-12-30
- Kazadoom · Community · 2020-12-30
Nothing — anomaly rules restrict moving into or through them, not being in them or moving out. Ships already there stay and may leave normally, and effects can place units in anomalies.
Which systems count as anomalies?
Only tiles with a red border: asteroid fields, nebulae, gravity rifts and supernovas. Empty systems and wormhole systems are not anomalies unless bordered. Antimass Deflectors is the technology that lets ships move into and through asteroid fields.
How do wormholes work, and must my ships use them?
The rulebook covers this under "Movement Details".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Movement Details
- sigmazero13 · Community · 2018-06-09
- hooliganj · Community · 2017-10-02
- TwoAMArts · Community · 2023-08-22
- csouth154 · Community · 2019-10-14
- PistonLoop · Community · 2022-07-02
Systems with matching wormholes are adjacent for all purposes, movement, Space Cannon and neighbors included. A wormhole only adds connections: you don't have to use it, and a wormhole system can be activated and moved through like any other. Being in one wormhole system doesn't put you next to the systems around the matching one.
Can other players use the Creuss Gate and the Creuss flagship's delta wormhole?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- AgentDrake · Community · 2019-05-08
- Klauseren · Community · 2017-12-11
- hooliganj · Community · 2023-07-15
- hooliganj · Community · 2019-01-17
- sigmazero13 · Community · 2017-11-17
- Clipper · Community · 2018-02-24
Yes — delta wormholes follow normal rules, so anyone can travel between the Creuss Gate, the Creuss home system and the flagship's system. Since the flagship's system contains a Creuss ship, enemies need a way to move through it (such as Light/Wave Deflector) or must stop and fight there.
How does the Creuss flagship's 'move before or after your other ships' work?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2017-08-23
- Weltenreiter · Community · 2017-08-23
- truephoenyx · Community · 2017-08-30
- CBpegasus · Community · 2017-08-30
- HP12C_guy · Community · 2023-08-18
- sigmazero13 · Community · 2018-01-17
Its system counts as containing a delta wormhole. If it moves into the active system first, that system becomes adjacent to other delta wormholes such as the Creuss home system, so your other ships can come in through it; or it can move after them. It can also use its own wormhole, for example to go home. If it moves first through a gravity rift and is destroyed, the wormhole is gone before the others move.
What exactly does Creuss's Quantum Entanglement connect, and can others use it?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2019-12-30
- Clipper · Community · 2018-02-14
- pkitty · Community · 2022-07-23
- donmakaron · Community · 2021-12-16
- zamoose · Community · 2021-12-17
- sigmazero13 · Community · 2019-09-18
For the Creuss only, systems with alpha wormholes and systems with beta wormholes are adjacent to each other; no game effect, Enforced Travel Ban included, can stop that. Other players can't fire Space Cannon or move through that connection.
Does Enforced Travel Ban stop Creuss's Slipstream bonus?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- sigmazero13 · Community · 2018-02-19
- Clipper · Community · 2018-02-14
- Santiago · Community · 2018-02-14
- dheck · Community · 2018-02-14disagrees
No — Slipstream only checks for a wormhole in the ship's starting system; it isn't a wormhole effect, according to a relayed developer ruling.
How does Lost Star Chart work, including with Enforced Travel Ban?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- sigmazero13 · Community · 2018-02-19
- IncrediSteve · Community · 2018-02-24
- Clipper · Community · 2018-02-24
- IncrediSteve · Community · 2018-01-01
- Clipper · Community · 2018-02-15disagrees
For the tactical action, every alpha and beta wormhole system is adjacent to every other, for everyone, including other players' Space Cannon. It creates its own adjacency, which a relayed FFG answer says still works under Enforced Travel Ban.
Do Flank Speed and Gravity Drive stack?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2019-01-30
- Somnambulix · Community · 2019-01-30
- Clipper · Community · 2018-03-08
Yes — Gravity Drive gives +1 to one ship and Flank Speed +1 to all your ships, so that ship can get +2, plus other bonuses. Two Flank Speeds can't be played together, though.
Do movement effects like Gravity Drive and gravity rifts apply to Saar Floating Factories?
The game's developer answered this directly on BGG in 2018.
- CreussEmissary · Designer · 2018-01-05
- iswearihaveajob · Community · 2018-01-18
- sigmazero13 · Community · 2018-07-24
- IncrediSteve · Community · 2024-06-02
- Clipper · Community · 2018-05-16
- Xelvonar · Community · 2018-01-17disagrees
Yes — the developer ruled that anything affecting movement affects Floating Factories and the ships moving with them, so they get Gravity Drive, Flank Speed and rift bonuses, and he later confirmed they roll when leaving a gravity rift. Separately, players read a lone Floating Factory as not blocking enemy movement, since it isn't a ship.
When an ability moves units outside a tactical action, like the Argent or L1Z1X hero, do normal movement rules apply?
Several experienced players agree; there is no official ruling on BGG.
- hooliganj · Community · 2021-06-17
- jeffwagner · Community · 2021-06-21
- IncrediSteve · Community · 2020-12-13
- ajmarshall · Community · 2021-10-01
- AgentDrake · Community · 2025-09-01
- hannibal555 · Community · 2020-12-28disagrees
Only the ability's own text applies: move values, the command-token restriction and other tactical-action movement rules are ignored, and the moving ships can transport units that start with them. Anomaly rules still apply, so no ability moves ships into a supernova unless it says so.
How do I move ground forces from one planet to another in the same system?
Several experienced players agree; there is no official ruling on BGG.
- ajmarshall · Community · 2020-02-11
- sigmazero13 · Community · 2020-02-11
- sigmazero13 · Community · 2017-12-11
- Clipper · Community · 2018-12-06
- Wakke · Community · 2018-12-06
- Clipper · Community · 2020-10-19
Make a tactical action on that system: a ship with capacity, already there or moving in, picks them up during movement, and they land on the other planet in the invasion step, even if you already control it. Transit Diodes is the other way.
Is a system adjacent to itself, and are planets in the same system adjacent?
Several experienced players agree; there is no official ruling on BGG.
- Johnnymaxx · Community · 2017-11-27
- DrewDecimal · Community · 2017-11-27
- Pete Walsh · Community · 2020-08-08
- Morix_Jak · Community · 2020-08-08
- Clipper · Community · 2021-02-07
- IncrediSteve · Community · 2024-03-19
A system is never adjacent to itself, so being in a system doesn't count as adjacent to it. Planets are treated as adjacent to other planets in their system and in neighboring systems, which matters for effects like Xxcha's Peace Accords.
Fleet Pool, Capacity and Transport
When is the fleet pool limit checked, and can I bring extra ships into a fight and trim afterwards?
Several experienced players agree; there is no official ruling on BGG.
- AgentDrake · Community · 2021-11-09
- sigmazero13 · Community · 2018-08-22
- Clipper · Community · 2018-02-24
- Clipper · Community · 2021-01-17
- AgentDrake · Community · 2021-03-25
At all times, except for ships that are only moving through other systems. Once ships arrive in the active system, any non-fighter ships over your fleet pool are removed straight away, before Space Cannon Offense and combat, so you can't use extras to soak hits.
Can I deliberately go over my fleet pool by moving or producing, then remove ships of my choice?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- IncrediSteve · Community · 2025-12-31
- IncrediSteve · Community · 2020-09-28
- Clipper · Community · 2018-08-24
- garfielder · Community · 2017-09-28
- Strategery21 · Community · 2024-01-08
- JamesG · Community · 2017-10-10
Yes — nothing stops you; you just remove the excess right away, choosing which. That lets you, say, build a new ship in a full system and scrap an old one, or move extra carriers in to deliver ground forces. Production itself isn't capped by the fleet pool; it is checked once the units are placed.
If an effect cuts my fleet pool, like Neuroglaive or Fleet Regulations, what happens to the excess ships, and does anyone get credit for them?
Several experienced players agree; there is no official ruling on BGG.
- adrim · Community · 2019-04-02
- Clipper · Community · 2018-04-08
- Clipper · Community · 2018-04-08
- Clipper · Community · 2018-06-18
- sigmazero13 · Community · 2018-06-18
You lose the token at once and must bring every system back within the new limit right away. Ships removed this way are destroyed, but no player destroyed them, so 'when you destroy' effects and objectives don't trigger for whoever caused it. Neuroglaive can even drop a fleet pool to zero.
What does capacity cover, and which units have it?
The rulebook covers this under "Fleet Pool, Capacity, and Transport".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Fleet Pool, Capacity, and Transport
- trud · Community · 2017-12-27
- Weltenreiter · Community · 2018-06-30
- GAFBlizzard · Community · 2025-08-16
- gpoirier · Community · 2025-08-16
Capacity holds fighters and ground forces in the space area, in any mix: Cruiser II's or a dreadnought's capacity can hold fighters too. Any unit with a capacity value can transport, including some flagships, war suns and faction units; check the faction sheet. Ground forces on planets need no capacity.
Does a space dock have capacity?
Several experienced players agree; there is no official ruling on BGG.
- ColtsFan76 · Community · 2022-08-16
- McBartsomeville · Community · 2022-01-24
- Cacotopos · Community · 2022-05-21
- Mr Skeletor · Community · 2017-11-20
- dizzybit · Community · 2019-11-02
- Negatis · Community · 2018-06-26
No — a normal space dock lets up to 3 fighters in its system ignore capacity, so you can build fighters there with no ships to carry them. It holds no ground forces and adds nothing to your carriers; two docks in one system cover 6 fighters. The Saar Floating Factory works differently, with real capacity of 4.
Can fighters stay in a system without a carrier or space dock?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2020-12-08
- AgentDrake · Community · 2020-12-08
- IncrediSteve · Community · 2024-07-28
- Clipper · Community · 2020-09-24
- csouth154 · Community · 2019-10-19
- AgentDrake · Community · 2019-07-16
Not normal fighters: any beyond the capacity of your ships and space docks there are removed. Fighter II can move and stay on its own, but Fighter IIs that don't fit in capacity count against your fleet pool like other ships. Letnev's Armada bonus is for non-fighter ships only, so it doesn't extend that.
Can Fighter IIs move on their own into a system already at my fleet limit?
Several experienced players agree; there is no official ruling on BGG.
- StrangeBeacon · Community · 2026-04-04
- Clipper · Community · 2022-11-14
- Clipper · Community · 2022-11-13
- McBartsomeville · Community · 2023-07-23
- DauntlessK · Community · 2019-06-03
Yes — Fighter IIs move independently, and fleet pool and capacity are checked once all movement is done. If ships in the destination have room for them, they don't count against your fleet pool.
Where can a moving ship pick up and drop off units?
The rulebook covers this under "Fleet Pool, Capacity, and Transport".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Fleet Pool, Capacity, and Transport
- AgentDrake · Community · 2018-08-19
- sigmazero13 · Community · 2018-08-25
- MollyMae · Community · 2019-01-12
- Benj_ · Community · 2018-09-26
- TerTer · Community · 2020-04-13
It can pick up fighters and ground forces in the system it starts in, every system it passes through and the active system, but not from any other system with your command token. Units come off only in the active system, after the ship finishes moving; it can't drop a load and go back for more. Fighters that don't fit stay behind.
Can a carrier pick up more units than its capacity so the excess are destroyed, or leave fighters behind to die?
The game's developer answered this directly on BGG in 2018.
- CreussEmissary · Designer · 2018-10-31
- CreussEmissary · Designer · 2018-10-31
- sigmazero13 · Community · 2018-10-30
- Soul_ · Community · 2018-10-29
- 0 hr · Community · 2018-10-31superseded
You can't pick up more than the moving ships' capacity, so you can't overload to destroy your own units. But you can load ground forces and leave fighters or infantry already in space behind; capacity is a system total, so those left over are removed if what remains can't hold them.
“You could not, however, attempt to transport more units than the moving ships have capacity for in an attempt to destroy the excess.”
— CreussEmissary, designer
After ships stop moving, are fighters and ground forces still tied to the ship that carried them?
No — only while moving (and when leaving a gravity rift). Afterwards only the total capacity in the system matters, so if a carrier is lost, the cargo survives if other ships have room, and you choose which excess units to remove. Units removed for lack of capacity are removed, not destroyed, so Infantry II doesn't trigger.
When is capacity checked if a carrier is lost?
Immediately whenever it isn't combat, for example after each player's Space Cannon Offense volley, before the next player fires. During combat fighters and ground forces may exceed capacity and keep fighting; the excess is removed when the space combat ends, before invasion. So if all your ships die, their ground forces can't invade.
Can ground forces stay aboard ships in space instead of landing?
Several experienced players agree; there is no official ruling on BGG.
- raptor666 · Community · 2024-11-23
- sigmazero13 · Community · 2017-12-18
- One_Wolf · Community · 2017-12-18
- Sirusx715 · Community · 2022-07-14
- sigmazero13 · Community · 2018-02-19
Yes — committing them is optional, and they can stay in space between turns as long as your ships there have enough capacity in total. Ground forces placed in space by effects like the Sol flagship don't fight in space combat; they wait for a later invasion or ride along when your ships move.
With Light/Wave Deflector, can I pick up my ground forces from a system that has enemy ships?
Several experienced players agree; there is no official ruling on BGG.
- halbower · Community · 2017-12-10
- Clipper · Community · 2017-12-10
- hooliganj · Community · 2017-12-10
- aegiscruiser · Community · 2017-12-11
- MareCagiva · Community · 2017-12-10disagrees
Yes — moving through such a system is allowed, and ships can pick up units in any system they pass through. Blockades only limit production.
Trade, Transactions and Deals
Who can make transactions, and when?
The rulebook covers this under "The Economy: Resources, Trade Goods, and Commodities".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · The Economy: Resources, Trade Goods, and Commodities
- IncrediSteve · Community · 2023-02-22
- GAFBlizzard · Community · 2023-02-22
During the action phase, only the active player can transact, and only with neighbors: one transaction with each neighbor per turn. A transaction trades any trade goods and commodities plus at most one promissory note. Deals that don't exchange components can be made with anyone at any time.
Is the one-transaction limit per turn or per round?
Several experienced players agree; there is no official ruling on BGG.
- AgentDrake · Community · 2020-12-03
- Clipper · Community · 2020-12-03
Per turn. A round covers all four phases; a turn is one player's turn in the action phase. So two neighbors can trade on one player's turn and again on the other's.
Can players make transactions with non-neighbors during the agenda phase?
The rulebook allows it, and the developer confirmed on BGG in 2019 that it doesn't make players neighbors.
- CreussEmissary · Designer · 2019-01-17
- hooliganj · Community · 2019-01-17
- AgentDrake · Community · 2020-12-05
- Clipper · Community · 2018-12-03
- hooliganj · Community · 2017-12-08
- Twilight Imperium: Fourth Edition rulebook · Rulebook · 4. Agenda Phase
Yes — while each agenda is being resolved, from its reveal until its outcome resolves, every pair of players may make one transaction, neighbors or not. That doesn't make them neighbors for anything else, as the developer confirmed when asked about Mentak's Pillage.
Can players trade action cards?
The rulebook covers this under "The Economy: Resources, Trade Goods, and Commodities".
- AgentDrake · Community · 2026-01-04
- Twilight Imperium: Fourth Edition rulebook · Rulebook · The Economy: Resources, Trade Goods, and Commodities
No — transactions cover only trade goods, commodities and promissory notes. The Hacan are the exception: their faction ability lets them include action cards, still within the one-transaction-per-player limit.
When is a deal binding?
Several experienced players agree; there is no official ruling on BGG.
- Duskwalker · Community · 2017-08-24
- sigmazero13 · Community · 2017-08-25
- Sande24 · Community · 2017-08-25
- IncrediSteve · Community · 2023-02-22
- pkitty · Community · 2023-02-22
- IncrediSteve · Community · 2017-08-25disagrees
Only when its terms resolve immediately — for example, taking a trade good not to fire Space Cannon at the moment you decide whether to fire binds you not to fire. Promises about future actions, and if-then conditions, are non-binding and can be broken. You can bind yourself to an act, but not to its result, such as a card that might be Sabotaged.
Is a deal to buy someone's votes binding?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2020-10-25
- Dulkal · Community · 2020-10-25
- sigmazero13 · Community · 2018-02-16
- hooliganj · Community · 2018-01-04
- Xelvonar · Community · 2018-02-04
Only for a player about to cast votes right now. Paying the next voter in exchange for their vote binds it, since nothing can happen in between; a promise to vote a certain way later can still be broken.
Must deals and negotiations happen openly at the table?
Several experienced players agree; there is no official ruling on BGG.
- hooliganj · Community · 2024-01-12
- rubberchicken · Community · 2024-01-12
The rules don't say. Whether players may negotiate in private is up to your group.
What can be exchanged in a transaction?
The rulebook covers this under "The Economy: Resources, Trade Goods, and Commodities".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · The Economy: Resources, Trade Goods, and Commodities
- Clipper · Community · 2021-06-04
- zamoose · Community · 2024-03-09
- IncrediSteve · Community · 2017-11-15
- Duskwalker · Community · 2019-01-31
- CBpegasus · Community · 2017-09-09
Any number of trade goods and commodities, plus one promissory note from each side, and relic fragments with Prophecy of Kings. Technologies, units, planets, laws, command tokens, the speaker token and secret objectives can't be traded; action cards only when the Hacan are one of the parties, in any number and either direction. A transaction may be lopsided, even a gift.
Is a transaction an action, and when during a turn can it happen?
Several experienced players agree; there is no official ruling on BGG.
- TerTer · Community · 2020-06-04
- DrewDecimal · Community · 2018-01-04
- chrisdk · Community · 2025-10-14
- sigmazero13 · Community · 2020-12-21
- sigmazero13 · Community · 2020-02-11
- Sande24 · Community · 2017-11-27
It isn't an action — the active player can make one with each neighbor at any point in their turn, even mid-combat or between the parts of a strategy card, and still take their action. Either side may propose it, and it counts against the active player's limit with that player. Two non-active players can't transact with each other.
Can players make transactions in the strategy or status phase?
No — transactions happen only in the action phase (active player with neighbors) and the agenda phase (anyone). Players can still talk and make non-binding deals at any time, even during galaxy setup.
Who counts as my neighbor?
The rulebook covers this under "The Economy: Resources, Trade Goods, and Commodities".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · The Economy: Resources, Trade Goods, and Commodities
- IncrediSteve · Community · 2017-08-26
- hooliganj · Community · 2024-10-14
- Clipper · Community · 2020-02-11
- hooliganj · Community · 2021-05-18
- IncrediSteve · Community · 2019-10-15
Players with a unit or controlled planet in the same system or adjacent systems, wormholes included, so two players fighting in a system are neighbors. Ships moving through systems don't create neighbors on the way, since they are never in those systems. The Hacan can transact with non-neighbors, and anyone can with them, but that doesn't make them neighbors for Pillage.
When do commodities turn into trade goods, and can I give them and get them back in one transaction?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2018-05-20
- Clipper · Community · 2021-02-16
- hooliganj · Community · 2025-10-18
- IncrediSteve · Community · 2025-11-14
- Clipper · Community · 2018-01-14
- greendayfan333 · Community · 2018-03-12
A commodity becomes a trade good the moment another player receives it, whether by transaction, Pillage or another effect. A transaction is one simultaneous exchange, so commodities you receive can't be sent back in it; that would be a second transaction, which must wait for another turn. You can only give what you actually have.
Can I trade on a promissory note I received from another player, and must I show it?
Several experienced players agree; there is no official ruling on BGG.
- kenilazarus · Community · 2018-11-12
- IndyBart · Community · 2018-11-12
- lauwegast · Community · 2020-10-24
- sigmazero13 · Community · 2018-04-12
- zamoose · Community · 2023-04-25
- CBpegasus · Community · 2017-12-18
Yes — any note in your hand can be traded on, and you needn't show it, though the recipient may want to see it first. If the deal named a specific note, you must hand over that one. Notes face up in your play area, like Support for the Throne, can't be traded or handed back voluntarily.
Is replenishing other players' commodities with Trade a transaction?
Several experienced players agree; there is no official ruling on BGG.
- McBartsomeville · Community · 2022-10-08
- Clipper · Community · 2022-10-08
- Usul_Theg · Community · 2022-10-17
- Clipper · Community · 2020-08-26
- TheImmortal87 · Community · 2022-10-08disagrees
No — it is a strategy card effect: recipients needn't be neighbors, can't refuse, it doesn't use up a transaction, and Mentak can't pillage it as a transaction. The Trade player may still transact during their strategic action, even after the secondaries.
Is a deal like 'take these trade goods and don't attack me this turn' binding?
No — a promise covering a period of time can't be resolved immediately, so it can be broken. To make something binding, pay for a specific immediate act, such as choosing not to fire Space Cannon right now, or trade for a promissory note like Ceasefire. A deal for future payment is non-binding too. Deals can never override rules like mandatory combat rolls.
Can I broker a trade between two players who aren't neighbors?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2017-10-12
- broran · Community · 2017-10-12
Only as two separate transactions, one with each, and since you get one transaction per neighbor per turn, part of it will rest on a non-binding promise.
Can a planet's resources and influence both be spent, or spent twice?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2026-05-22
- hooliganj · Community · 2026-05-22
- IncrediSteve · Community · 2021-12-11
- THLY · Community · 2021-12-11
- hooliganj · Community · 2023-11-13
- isterbat · Community · 2023-11-13
No — exhausting a planet spends either its resources or its influence, never both, and an exhausted planet can't be spent again until something readies it. Trade goods can stand in for either resources or influence.
How does Mentak's Mirror Computing interact with Bribery or spend-trade-goods objectives?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2021-09-08
- hooliganj · Community · 2019-09-09
- IncrediSteve · Community · 2018-07-25
Each trade good is worth 2 when spent as resources or influence, but still 1 when spent as trade goods, so Bribery and objectives that spend trade goods get no bonus.
Is returning a used promissory note to its owner a transaction?
Several experienced players agree; there is no official ruling on BGG.
- Blaze_Of_Glory · Community · 2022-08-28
- HeavyGear · Community · 2022-08-28
- DistantOasis · Community · 2022-08-29
No — returning it is part of resolving the card, so it needs no agreement and happens even if you are no longer neighbors.
How often can Sol's Military Support be used?
At most once per Sol turn: it is used at the start of Sol's turn and then returns to Sol. If Sol trades it out again that turn, the start of that turn has passed, so it waits until Sol's next turn.
Producing Units
How many units can a space dock produce?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2017-08-16
- Weltenreiter · Community · 2017-08-16
- Clipper · Community · 2020-10-12
- IncrediSteve · Community · 2018-09-02
- Pete Walsh · Community · 2018-01-15
- Clipper · Community · 2018-06-16
A Space Dock I has Production equal to its planet's resource value plus 2 (plus 4 with Space Dock II), so on a 3-resource planet it builds up to 5 units. The planet being exhausted doesn't matter.
Does Production limit the number of units or their total cost?
Several experienced players agree; there is no official ruling on BGG.
- dradice · Community · 2018-02-02
- DrewDecimal · Community · 2018-02-02
- AgentDrake · Community · 2018-12-26
- dradice · Community · 2020-02-18
- Clipper · Community · 2020-06-07
- Clipper · Community · 2022-01-30
The number of units. Each fighter or infantry counts as one unit, even though two cost 1 resource, so a war sun uses one point of Production and you pay its 12 cost separately. The value isn't used up: you can produce up to it every time you get a chance to produce there.
When producing, can I exhaust planets outside the active system to pay?
Several experienced players agree; there is no official ruling on BGG.
- Painkeeper · Community · 2019-07-11
- Clipper · Community · 2019-08-09
- Jatta Pake · Community · 2017-12-03
- Clipper · Community · 2017-12-17
- sigmazero13 · Community · 2019-10-30
Yes — spend resources from any planets you control, wherever they are, plus trade goods. Only the number of units is limited by the Production in the active system.
Do the Production values of several units in the active system add together?
Several experienced players agree, citing LRR 59.1; there is no official ruling on BGG.
- Clipper · Community · 2018-05-08
- MollyMae · Community · 2019-01-20
- sigmazero13 · Community · 2018-05-19
- jeffwagner · Community · 2017-08-29
- Clipper · Community · 2018-07-23
- halbower · Community · 2017-08-28disagrees
Yes — all your Production in the active system is pooled into one production: two space docks of 4 and 3 give 7, and two Arborec infantry with Production 1 can build 2 infantry for 1 resource, even on different planets. You work out the total before producing, so units produced in that step can't add their own Production to it.
Where are produced ground forces placed?
Several experienced players agree; there is no official ruling on BGG.
- tommygunn2011 · Community · 2018-08-26
- Ndjcirnc · Community · 2022-10-04
- IncrediSteve · Community · 2020-11-07
- Clipper · Community · 2020-05-29
- ajmarshall · Community · 2020-05-17
- TerTer · Community · 2020-05-29disagrees
On a planet that holds a unit that used Production, never on other planets in the system. With several producing planets you may split them among those planets however you like, even all on one. If the producing unit is in space, like a Saar Floating Factory or Letani Warriors aboard ships, they can go in that space area or on any planet you control in the system.
Can ground forces I produce take an uncontrolled planet in the same tactical action?
Several experienced players agree; there is no official ruling on BGG.
- christhomas226 · Community · 2020-09-25
- Dulkal · Community · 2020-09-25
- pedro2112 · Community · 2021-01-23
- IncrediSteve · Community · 2020-01-04
No — production is the last step, after invasion, and produced ground forces only go where described above. They can invade in a later action.
Can I produce at my home space dock during a tactical action elsewhere, or at a system I activated earlier?
Several experienced players agree; there is no official ruling on BGG.
- zamoose · Community · 2019-09-30
- tommygunn2011 · Community · 2019-09-30
- Clipper · Community · 2018-08-22
- McBartsomeville · Community · 2025-03-23
- HP12C_guy · Community · 2025-03-23
No — the production step only uses units in the system you just activated. Producing without activating needs a specific effect such as the Warfare secondary or Sling Relay.
Can I produce ships at a space dock when enemy ships are in that system?
The rulebook covers this under "Producing Units".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Producing Units
- Mordenthral · Community · 2017-12-11
- sigmazero13 · Community · 2017-12-11
- Lowecore · Community · 2023-04-03
- halbower · Community · 2020-07-04
No — a dock (or other Production unit) in a system with another player's ships and none of yours is blockaded and can only produce ground forces. You keep the planet, and your PDS still fire. If Space Cannon or combat clears the enemy ships before the production step, you produce normally. Ground forces alone, without ships, never blockade.
Can I build space docks or PDS with Production?
The rulebook covers this under "Control, Structures, and the Custodians Token".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Control, Structures, and the Custodians Token
- maverikki · Community · 2017-12-12
- brettellmd · Community · 2019-02-18
- IncrediSteve · Community · 2024-12-23
- trud · Community · 2017-12-27
- Maarten Jeursen · Community · 2018-10-16
No — unlike earlier editions, structures can't be built with Production; they come mainly from the Construction strategy card. A planet holds at most one space dock and two PDS, Mecatol Rex included.
If all my space docks or PDS are on the board, can I place another?
Several experienced players agree; there is no official ruling on BGG.
- McBartsomeville · Community · 2024-03-19
- hooliganj · Community · 2024-03-19
- mliszewski · Community · 2018-12-21
- Bizud · Community · 2017-12-22
- Mordenthral · Community · 2018-01-05
- SpookyNoodlez · Community · 2024-04-13
Only by moving one: if none are in reinforcements, you may take one from a system without your command token and place it where the effect directs. You can't otherwise scuttle your own units, and nothing is refunded.
Do units 'placed' by an effect cost resources, and do they count as producing?
Several experienced players agree; there is no official ruling on BGG.
- toskk · Community · 2025-10-19
- Cacotopos · Community · 2025-10-19
- Xelvonar · Community · 2017-12-02
- sigmazero13 · Community · 2020-08-09
- Marcial · Community · 2021-04-08
- AgentDrake · Community · 2018-08-12
No to both. An effect that says 'produce' means you pay the cost unless it says otherwise. 'Place' or 'gain' is free and isn't producing, so Muaat's Star Forge doesn't count as producing and doesn't trigger Magmus Reactor's trade good.
How does Sarween Tools work?
It cuts the combined cost of one use of Production by 1, not 1 per unit or per dock, and can take it to zero, so 2 infantry or 2 fighters can be free. It needs a unit's Production ability, so it doesn't apply to effects that just let you produce, like Sling Relay, but works with the Warfare secondary.
Can a destroyed flagship be rebuilt?
Yes — it goes back to reinforcements and can be produced again; you're only limited to the one piece.
When all my plastic fighters or infantry are on the board, can I move some to where I'm producing?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2024-03-06
- Marcial · Community · 2024-03-06
- Clipper · Community · 2021-08-09
Yes — you may remove them from systems without your command token and produce them instead of using tokens. Tokens are optional, and each location using tokens still needs at least one plastic piece of that type.
Technology
Does the Codex (Omega) Magen Defense Grid still work if the PDS on the planet has been hit by Disable?
Several experienced players agree; there is no official ruling on BGG.
- csouth154 · Community · 2020-06-07
- sigmazero13 · Community · 2020-06-07
- IncrediSteve · Community · 2026-04-15
- GAFBlizzard · Community · 2026-04-15
- haeberich · Community · 2020-06-07disagrees
Yes — Disable only strips the PDS's Planetary Shield and Space Cannon; it is still a structure, so Magen Defense Grid still produces its hit. That hit lands at the start of ground combat, before dice are rolled, so the destroyed unit never rolls. With only structures on the planet there's no ground combat and Magen can't trigger.
Does Graviton Laser System do anything during Space Cannon Defense?
No — you may exhaust it, but the only targets during Space Cannon Defense are the invading ground forces, so there are never non-fighter ships to force hits onto.
How does Duranium Armor work?
Once per combat round, after hits are assigned, it repairs one of your damaged units in that combat that did not use Sustain Damage that round, even if you had no hits to assign. Only units with Sustain Damage can be damaged, so only they benefit: ships in space combat, mechs in ground combat, never units elsewhere on the board. It isn't an extra hit point: a damaged unit that takes another hit is destroyed first. A unit damaged by Space Cannon before combat can be repaired at the end of round one.
Does Valkyrie Particle Weave trigger if I cancel all the opponent's hits?
Yes — it needs the opponent to produce hits, and they did; cancelling them afterwards doesn't undo that.
How does Graviton Laser System affect Space Cannon hits?
Several experienced players agree; there is no official ruling on BGG.
- unethrope · Community · 2018-01-16
- sigmazero13 · Community · 2018-01-16
- Clipper · Community · 2018-12-11
- zamoose · Community · 2021-08-10
It makes Space Cannon hits be assigned to non-fighter ships when possible. They are still ordinary hits, so Sustain Damage can cancel them before assignment. It doesn't affect fighters or ground forces in ground combat, Naalu fighters included.
Is Hyper Metabolism misprinted?
Several experienced players agree; there is no official ruling on BGG.
- pkitty · Community · 2017-12-16
- hooliganj · Community · 2025-11-20
- pkitty · Community · 2017-11-13
- nikobel · Community · 2018-01-25
- IncrediSteve · Community · 2022-01-24
- Falcone1983 · Community · 2017-11-05
Yes — early copies are wrong; it should make you gain 3 command tokens in the status phase instead of 2. Base sets printed after 2019 have the corrected card. It stacks with Sol's extra token, so Sol with it gains 4.
How do technology specialties work when researching?
The rulebook covers this under "Technology".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Technology
- IncrediSteve · Community · 2019-02-16
- COMaestro · Community · 2019-02-22
- AgentDrake · Community · 2021-10-17
- sigmazero13 · Community · 2018-01-12
- Truji · Community · 2024-01-19
Exhaust a ready planet with a specialty to ignore one prerequisite of that color; several planets can skip several prerequisites on one technology, and it works for unit upgrades too. Exhausting a planet for its specialty is separate from spending it, so you don't also get its resources.
Does a technology I just researched, or one that is exhausted, count as a prerequisite?
Several experienced players agree; there is no official ruling on BGG.
- zamoose · Community · 2023-04-23
- Clipper · Community · 2018-02-25
- AgentDrake · Community · 2018-01-11
- Clipper · Community · 2023-09-15
- sigmazero13 · Community · 2020-02-28
- sigmazero13 · Community · 2020-05-19
Yes to both. Owned technologies always count, exhausted or not, so the first technology from the Technology primary counts for the second, and you can exhaust AI Development Algorithm and still count it. A coloured faction technology counts as that colour for prerequisites and objectives.
How do unit upgrades work?
The rulebook covers this under "Technology".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Technology
- HedleyP · Community · 2025-08-19
- Clipper · Community · 2020-03-16
- Weltenreiter · Community · 2019-03-05
- Clavos · Community · 2026-01-06
- Clipper · Community · 2020-12-16
They are technologies you research normally, prerequisites and all; Inheritance Systems can skip their prerequisites like any other. Once gained, lay the card over that unit on your faction sheet; all your units of that type use the new stats right away. Upgrades have no colour, so they don't count as prerequisites or for colour objectives.
Do faction technologies replace generic ones?
Only faction unit upgrades replace the matching generic upgrade; all other faction technologies are extras. Faction unit upgrades do count as faction technologies for objectives.
If an effect lets me research a technology, do I pay for it?
Several experienced players agree; there is no official ruling on BGG.
- Weltenreiter · Community · 2018-04-01
- Weltenreiter · Community · 2018-04-01
- Weltenreiter · Community · 2017-11-29
- Bluedevil310 · Community · 2026-01-04
- IncrediSteve · Community · 2022-01-16
Only if the effect says so, as the Technology card does. You still meet prerequisites (specialties can help). 'Gain' is different from 'research': gaining ignores prerequisites and doesn't trigger 'when you research' effects.
Can I use a technology right after researching it, such as Fleet Logistics?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2020-08-26
- IncrediSteve · Community · 2020-12-13
- hooliganj · Community · 2019-02-20
- Xelvonar · Community · 2017-12-28
- donmakaron · Community · 2021-05-05
Yes. Research Fleet Logistics with the Technology primary on your turn, and once that strategic action, secondaries included, is done you may take a second action that turn; gaining it on another player's turn doesn't give an extra action then. Starting technologies work from the first turn.
What does Fleet Logistics allow?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2017-12-10
- Painkeeper · Community · 2017-12-20
- Libero03 · Community · 2017-12-20
- iswearihaveajob · Community · 2019-10-29
- csouth154 · Community · 2019-03-03
- IncrediSteve · Community · 2021-03-22
On each turn you may take two actions instead of one, of any type, even the same type, such as two tactical actions on two systems. You can't reuse an exhausted strategy card or a discarded action card, and the second action is optional. If the first is Warfare, other players resolve its secondary before your second action.
Does Gravity Drive give +1 move to every ship?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2017-08-29
- Robo Fish · Community · 2017-08-29
- Aarontu · Community · 2024-01-30
- Stinky_Wizzleteets · Community · 2024-02-03
No — each tactical action you pick one ship, one plastic piece, and it gets +1 move for that action.
Is Plasma Scoring's extra die optional, and does it work with Experimental Battlestation?
Several experienced players agree; there is no official ruling on BGG.
- Normative · Community · 2019-02-07
- Yakslapper · Community · 2019-02-18
- Clipper · Community · 2019-09-04
- UnalignedMagi · Community · 2017-12-18
- hooliganj · Community · 2017-12-18
It is a 'may', so you can decline it. It adds a die whenever your units use Space Cannon or Bombardment, including a space dock firing through Experimental Battlestation, which then rolls 4 dice.
What does Antimass Deflectors do?
Several experienced players agree; there is no official ruling on BGG.
- sigmazero13 · Community · 2017-09-06
- IncrediSteve · Community · 2017-09-07
- Clipper · Community · 2017-12-16
- hooliganj · Community · 2017-12-16
- zamoose · Community · 2018-06-25
- sigmazero13 · Community · 2018-06-25
Your ships can move into, end in and pass through asteroid fields, and other players' Space Cannon rolls get -1 against all your units, ground forces in Space Cannon Defense included, wherever they are.
Does Light/Wave Deflector let my ships ignore blockades?
Several experienced players agree; there is no official ruling on BGG.
- sigmazero13 · Community · 2019-10-09
- csouth154 · Community · 2019-10-09
No — it only lets your ships move through systems containing other players' ships. It doesn't let you produce ships in a blockaded system.
Are Fighter II units still fighters for other effects?
Yes — Fighter II only lets fighters move without capacity (counting against the fleet pool when unsupported); they remain fighters for every other effect.
What happens to infantry on the Infantry II card if I don't control my home system?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- Clipper · Community · 2019-09-11
- ajmarshall · Community · 2020-11-07
- sigmazero13 · Community · 2018-03-09
- Clipper · Community · 2018-05-24
- Clipper · Community · 2018-07-22
- Clipper · Community · 2018-03-08disagrees
They return at the start of your next turn, which after passing is in the next round, onto planets you control in your home system, split as you like. If you control none there, they are lost (returned to reinforcements), per a relayed developer email; they don't wait on the card. Any destruction triggers Infantry II.
Does a war sun shut off Magen Defense Grid?
Several experienced players agree; there is no official ruling on BGG.
- iswearihaveajob · Community · 2020-12-26
- Somnambulix · Community · 2020-12-26
- pkitty · Community · 2021-08-04
- TinTeardrop · Community · 2021-08-04
- gpoirier · Community · 2025-12-26
- halbower · Community · 2019-11-14
Only the original version, which needs a unit with Planetary Shield: a war sun makes other players' units lose Planetary Shield. Effects that merely ignore Planetary Shield leave it, so the original still works then. The Codex Omega version only needs a structure and isn't affected by war suns. It only acts in the first round of ground combat.
How does X-89 Bacterial Weapon Omega work?
Several experienced players agree; there is no official ruling on BGG.
- DauntlessK · Community · 2021-04-20
- THLY · Community · 2021-04-21
- ajmarshall · Community · 2020-08-16
- Clipper · Community · 2020-04-02
- Clipper · Community · 2019-11-17
- sigmazero13 · Community · 2019-11-18
It needs your Bombardment to destroy at least one infantry; if hits go to mechs and no infantry dies, nothing happens, and Planetary Shield, by blocking Bombardment, blocks it too. The original X-89 targets any enemy planet, even one with no infantry.
What can Integrated Economy produce?
Any units, ships or ground forces, up to the new planet's resource value in cost, paid normally; ships appear in that system, unless enemy ships are there. Each planet gained triggers separately. It isn't a Production ability, so Sarween Tools and the original Yin Spinner don't apply.
What can L1Z1X's Inheritance Systems be used for?
It ignores all prerequisites for one research, unit upgrades and your own faction technologies like Super Dreadnought included, but can't get you another faction's technology. Researched as the first tech of the Technology primary, it can pay for the second. It can be used in the agenda phase too, though it then stays exhausted, since only planets ready at the end of that phase.
Can Xxcha's Instinct Training cancel any action card, even outside their own combats?
Several experienced players agree; there is no official ruling on BGG.
- Marcial · Community · 2023-10-14
- IncrediSteve · Community · 2023-10-14
- pkitty · Community · 2021-08-02
- halbower · Community · 2018-01-27
- Clipper · Community · 2019-09-09
Yes — it cancels any other player's action card, Sabotage included, since it refers to 'another player', not an opponent. Unlike Nullification Field, it doesn't require you to be the target.
Is Creuss's Wormhole Generator mandatory, and where can its tokens go?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- kaiteinomen · Community · 2018-03-29
- Clipper · Community · 2018-03-29
- sigmazero13 · Community · 2018-03-29
- Clipper · Community · 2018-12-23
- Clipper · Community · 2018-03-29
A player relays a developer email saying it is mandatory each status phase, since it lacks 'may'. Only the alpha and beta Creuss tokens exist, so once both are out you move one. A system with a planet you control qualifies even if it's your home system; the non-home limit applies only to the option of a system without other players' ships.
Does the Creuss flagship's delta wormhole trigger Dimensional Splicer?
Several experienced players agree; there is no official ruling on BGG.
- DarthBatman47 · Community · 2018-02-13
- Weltenreiter · Community · 2018-02-13
- IncrediSteve · Community · 2018-01-31
- Clipper · Community · 2020-07-14
Yes — it is a wormhole, and the Creuss player then picks which enemy ship takes the hit, which can set up Direct Hit.
How does Jol-Nar's Research Agreement work?
Several experienced players agree; there is no official ruling on BGG.
- sigmazero13 · Community · 2017-09-17
- Clipper · Community · 2018-04-25
- csouth154 · Community · 2019-05-19
- Weltenreiter · Community · 2017-11-29
- Clipper · Community · 2018-06-18
- Clipper · Community · 2019-02-05
When Jol-Nar researches a non-faction technology, by any means, while you hold the note, both of you end up with it: you gain the same technology. It doesn't trigger when Jol-Nar merely gains a tech, and it can't give you a unit upgrade for a unit your faction doesn't have. The Nekro get the technology, not tokens.
How does Jol-Nar's Spatial Conduit Cylinder work?
It is exhausted right after activation, before movement, so the system must already contain your units. Then systems with your units count as adjacent to it for that action, so all your PDS II there can fire into it.
Can Bioplasmosis or Transit Diodes move ground forces onto enemy planets, or chain across systems?
Several experienced players agree; there is no official ruling on BGG.
- baza26b · Community · 2018-06-28
- Clipper · Community · 2018-01-31
- Cacotopos · Community · 2023-10-01
- hooliganj · Community · 2023-10-01
- Weltenreiter · Community · 2017-08-22
No. Both only move ground forces to planets you control. Bioplasmosis moves each infantry once, to a planet in its own or an adjacent system, so no hopping across several systems.
Can Winnu use Lazax Gate Folding's action without Mecatol Rex, and does the wormhole part work while exhausted?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- Falcone1983 · Community · 2018-04-23
- Falcone1983 · Community · 2018-06-07
- Clipper · Community · 2018-04-22
- PistonLoop · Community · 2021-09-09
- sigmazero13 · Community · 2019-09-09
- Falcone1983 · Community · 2018-04-22disagrees
The action needs you to control Mecatol Rex, so it can't be used as a stall. The passive part, Mecatol Rex counting as alpha and beta wormholes while you don't control it, doesn't need the card ready, so it works while exhausted.
Can a technology ability that doesn't say 'exhaust' be used more than once per round?
Several experienced players agree; there is no official ruling on BGG.
- sigmazero13 · Community · 2020-02-28
- LithuanianFury · Community · 2020-03-03
- Clipper · Community · 2021-01-25
Yes — it applies every time its trigger occurs, and static abilities keep working even while the card is exhausted.
When does Magmus Reactor give a trade good for producing?
Players disagree; this is the better-supported reading, with no official ruling.
- IncrediSteve · Community · 2021-08-07
- IncrediSteve · Community · 2021-08-09
- AgentDrake · Community · 2018-08-12
- IncrediSteve · Community · 2021-08-07disagrees
When you produce in a system that contains a war sun (anyone's) or is adjacent to a supernova; at most one per production. A war sun next door, producing inside a supernova (a system isn't adjacent to itself), or a war sun built in that same production doesn't count, and Star Forge places rather than produces.
Does Prototype War Sun II cost less?
Several experienced players agree; there is no official ruling on BGG.
- Painkeeper · Community · 2018-07-26
- Benj_ · Community · 2018-07-26
Yes — it costs 10 instead of 12.
Control, Structures and Mecatol Rex
Does a home system stop being a home system when another player takes it?
Several experienced players agree; there is no official ruling on BGG.
- alercah · Community · 2017-11-21
- hooliganj · Community · 2017-11-21
- GrumblingGamer · Community · 2019-01-12
- Clipper · Community · 2019-01-12
No — it stays its original owner's home system, so it remains off-limits to effects that target non-home systems or planets, and its owner still needs it back to score public objectives.
Do I lose control of a planet if my ground forces leave or are destroyed?
No — you control a planet while you hold its card; with no units there, mark it with a control token. You only lose control when another player gains it, by invading or an effect that says so. That includes home planets you start with, and control never reverts to a former owner automatically.
Do I control both planets in my home system at the start, and does that trigger 'gain control' effects?
Several experienced players agree; there is no official ruling on BGG.
- Zumbar · Community · 2024-10-18
- AgentDrake · Community · 2024-10-18
- halbower · Community · 2017-12-17
- Clipper · Community · 2017-12-17
- Padish · Community · 2017-12-17
You control every home planet from the start, empty or not; a control token on an empty one is just a reminder. Because you begin with control rather than gaining it, abilities like Saar's Scavenge don't trigger at setup.
How do I take control of a planet?
The rulebook covers this under "Tactical Action".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Tactical Action
- Owen134866 · Community · 2023-05-02
- isterbat · Community · 2023-07-11
- IncrediSteve · Community · 2025-07-03
- Nyarlathotep90 · Community · 2018-01-21
- IncrediSteve · Community · 2017-12-08
Normally by landing at least one ground force on it in the invasion step; ships in the system, or fighters, even with the Naalu flagship, never take a planet. Each planet is taken separately, so one invasion can't claim a second planet you didn't land on. A few effects grant control directly, and say so, like Xxcha's Peace Accords.
When invading a system with two planets, does winning on one take both, and what if both sides are wiped out on a planet?
The rulebook covers this under "Invasion and Ground Combat".
- hooliganj · Community · 2019-01-29
- IncrediSteve · Community · 2019-01-30
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Invasion and Ground Combat
No — each planet has its own ground combat, and you take only the planets where your ground forces remain and the defender's don't. If both sides lose all their ground forces on a planet, the defender keeps control.
Can different players control different planets in the same system?
Yes — each planet is controlled separately and nobody controls the space area. Only ships can't share the space area without combat. If a planet's controller has no units on it while someone else's do, control stays put until that player invades.
What happens to space docks and PDS when an enemy takes the planet?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- Old_Man_gi · Community · 2020-12-21
- Clipper · Community · 2017-12-03
- Crikrunner · Community · 2017-11-25
- sigmazero13 · Community · 2018-09-17
- sigmazero13 · Community · 2018-09-13
- Clipper · Community · 2018-09-14disagrees
They are destroyed when another player's ground forces take control of the planet with none of the owner's ground forces left. Structures never fight or block an invasion. Fighters fighting via the Naalu flagship don't destroy them, since they aren't on the planet afterwards. L1Z1X's Assimilate replaces them instead, and the new dock can produce that same action.
Can PDS or space docks be moved or transported?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2020-01-21
- halbower · Community · 2020-02-15
- pfischer · Community · 2018-01-14
- sigmazero13 · Community · 2017-08-16
No — structures stay where they are placed, except the Saar Floating Factories, which move as if they were ships.
How do I take Mecatol Rex, and does the custodians point ever change hands?
The rulebook covers this under "Control, Structures, and the Custodians Token".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Control, Structures, and the Custodians Token
- donmakaron · Community · 2022-05-19
- hooliganj · Community · 2017-11-28
- salsaVerdeguel · Community · 2025-12-28
- AgentDrake · Community · 2022-01-18
- pfischer · Community · 2017-12-18
Activate it like any system; during invasion, before committing ground forces, spend 6 influence to remove the custodians token, gaining it and 1 victory point, then land. Only the first player to do this gets the point, and it is never lost; later control of Mecatol Rex scores only through Imperial.
If I kill every ground force on a planet with X-89 or Orbital Drop elsewhere, do I take the planet?
Several experienced players agree; there is no official ruling on BGG.
- Crikrunner · Community · 2018-05-28
- oldfan · Community · 2018-05-30
- zamoose · Community · 2020-09-06
- Phoenix1147 · Community · 2020-09-06
No — destroying defenders never changes control, and Orbital Drop only reinforces planets you already control. You must invade in a tactical action to take it.
Can an enemy use a Saar Floating Factory to score objectives about ships in systems with enemy space docks?
No — a Floating Factory left alone with enemy ships is destroyed at once, so the condition never holds against the Saar.
Action Cards
Can I play two copies of the same action card, like Morale Boost or Flank Speed, in one timing window?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2021-06-27
- IncrediSteve · Community · 2021-08-07
- AgentDrake · Community · 2021-01-02
- sigmazero13 · Community · 2020-08-04
- Clipper · Community · 2022-06-08
No — you cannot play more than one action card with the same name in a single timing window to affect the same units or effect. Cards with different names can all be played. Direct Hit can be played more than once because each copy targets a different ship.
If my action card is cancelled by Sabotage, can I play another copy of the same card in that window?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2022-06-07
- Clipper · Community · 2022-06-08
- chrisdk · Community · 2023-04-02
- jeffwagner · Community · 2018-10-06disagrees
Yes — a cancelled card is treated as never having been played, so the same-name restriction doesn't stop a second copy. Likewise, if your Sabotage is itself cancelled (by Instinct Training, say), you may play another Sabotage on the original card. Some older answers said a second copy was not allowed.
Can a player who isn't in the combat play Sabotage or Direct Hit?
Several experienced players agree; there is no official ruling on BGG.
- hooliganj · Community · 2018-03-21
- sigmazero13 · Community · 2018-06-03
- PorkStewJoe · Community · 2018-06-03
Sabotage, yes: any player can cancel another player's action card (other than a Sabotage). Direct Hit, no: the hit must have been produced by your own units or abilities, so a bystander has nothing to play it on.
Do Direct Hit and Shields Holding work on hits from Dimensional Splicer or Yin Devotion?
The developer confirmed on BGG in 2018 that the earlier FAQ entry was a mistake; players relay his emailed rulings on both cards.
- CreussEmissary · Designer · 2018-05-24
- Clipper · Community · 2018-05-23
- Clipper · Community · 2018-05-23
- sigmazero13 · Community · 2018-05-24
- pkitty · Community · 2017-12-16
- shakesignal · Community · 2018-05-21disagrees
Yes to both. Direct Hit was errata'd to cover hits produced by your units or abilities, and Shields Holding can cancel these hits too. An early FAQ entry saying otherwise was acknowledged as a mistake by the developer, who confirmed the Splicer is meant to be that powerful.
If I have 7 action cards and draw 2, do I discard as I go or after drawing both?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2018-05-22
- TheWhistler1967 · Community · 2018-05-22
Draw both, then discard down to seven, choosing from your whole hand.
Can Tactical Bombardment be played in a system with no enemy planets?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2021-04-01
- Clipper · Community · 2021-04-01
Yes — it only requires that you have a unit with Bombardment in that system.
Does Cripple Defenses destroy every PDS on the planet?
One experienced player's reading; no official ruling or wider agreement.
- Morix_Jak · Community · 2019-06-30
Yes — it destroys each PDS on the chosen planet, which is all of them.
If my component action card is cancelled by Sabotage, have I used my action for the turn?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2018-01-22
- ronaldsf · Community · 2018-03-10
- sigmazero13 · Community · 2019-03-18
- Clipper · Community · 2017-12-02
- Quadrature_Strategy · Community · 2022-01-25
- GAFBlizzard · Community · 2026-03-09
No — a cancelled card counts as not played, so you still take an action (or pass, if allowed). Anything that happened before you played it stands: if Flank Speed or Upgrade is Sabotaged after you activated a system, the system stays activated and you carry on without the bonus. If it was the optional extra action from Fleet Logistics, you can just end your turn.
When exactly is Sabotage played: before or after the card's target is chosen?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- MATTPROV3 · Community · 2018-08-28
- sigmazero13 · Community · 2019-01-23
- sigmazero13 · Community · 2018-08-29
- chrisdk · Community · 2023-02-12
- hooliganj · Community · 2023-02-13
- hooliganj · Community · 2018-08-28disagrees
After the player announces the card's choices (target planet, ship or player, rider prediction, retreat destination and so on), but before anything changes the game state, such as rolling dice or spending trade goods. Allow a short pause for it. Focused Research is the exception: its technology is chosen during resolution, after the Sabotage window.
Can Sabotage cancel another Sabotage or a promissory note?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2018-03-08
- sigmazero13 · Community · 2018-03-08
- halbower · Community · 2017-12-02
- Clipper · Community · 2017-12-02
No to both. Sabotage only cancels action cards, and never one named Sabotage. Other cancel effects that lack that restriction can still cancel a Sabotage.
Can I play action cards when it isn't my turn?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2019-02-11
- AgentDrake · Community · 2019-02-11
Yes, whenever a card's timing text allows it — Sabotage can even go into a combat you aren't part of. Only cards whose timing is ACTION must be played as your action on your turn.
When can the Upgrade action card be played?
Several experienced players agree; there is no official ruling on BGG.
- hooliganj · Community · 2018-08-14
- Weltenreiter · Community · 2018-08-14
Immediately after you activate a system containing your ships — not later in that tactical action, such as after producing a new cruiser.
Does Unstable Planet destroy fewer than 3 infantry if there are only 1 or 2?
Several experienced players agree; there is no official ruling on BGG.
- pkitty · Community · 2017-12-16
- Sidious1027 · Community · 2019-01-16
- Esau of Isaac · Community · 2018-01-10
- sigmazero13 · Community · 2020-03-18
Yes — it was errata'd to destroy up to 3 infantry, so it removes whatever is there, up to 3. It can also target an exhausted hazardous planet, since its effects are joined by 'and'.
Can several Direct Hits or Shields Holdings be played in the same combat round?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
Several Direct Hits, yes: each Sustain Damage use is its own trigger, so you can answer each with a Direct Hit on that ship. Sustain Damage is used unit by unit, so you can wait to see a Direct Hit before sustaining with more; hits already cancelled stay cancelled. Shields Holding: one per player against a set of incoming hits, though each combatant can play one.
Does Shields Holding last for the whole combat?
No — like other action cards it resolves once, against one round's hits, and is discarded.
What happens to committed ground forces when Parley is played?
Several experienced players agree; there is no official ruling on BGG.
- Dalek5 · Community · 2017-08-31
- CleanAndClear · Community · 2017-08-31
They return to the space area rather than being destroyed, within capacity. The invasion of that planet just doesn't happen.
Can I play Skilled Retreat if I have no command tokens in reinforcements?
Yes — as with a normal retreat, you take a token from your command sheet instead, according to a relayed FFG answer. Skilled Retreat may also move into a system that already contains your command token.
When can Parley be played, and does it stop Bombardment?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2017-12-14
- ksfga · Community · 2018-02-26
- sigmazero13 · Community · 2018-02-26
- Crikrunner · Community · 2017-11-29
- Dulkal · Community · 2017-11-29
Right after ground forces are committed to a planet, not later in the combat. Bombardment happens before that, so Parley can't stop it. The committed forces go back to space and that planet's invasion is off; to try again you need the system free of your command token.
Which hits can Shields Holding cancel?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2019-02-17
- sigmazero13 · Community · 2020-02-26
- Clipper · Community · 2021-09-03
- Clipper · Community · 2018-01-15
- Amuk · Community · 2018-03-18
Hits during space combat, including Anti-Fighter Barrage in the first round and ability hits like Dimensional Splicer, Ambush or Devotion. Not Space Cannon Offense or Defense, which happen outside space combat, and not 'destroy' effects such as Courageous to the End. Each combatant may play one in the same round.
Can I play Direct Hit, Maneuvering Jets or other combat cards in a combat I'm not part of?
Several experienced players agree; there is no official ruling on BGG.
- donmakaron · Community · 2020-10-26
- hooliganj · Community · 2020-10-26
- MollyMae · Community · 2019-01-21
- Clipper · Community · 2020-03-06
- Clipper · Community · 2021-08-30
- sigmazero13 · Community · 2017-11-26
In practice no — Direct Hit needs a hit produced by your own units or abilities, Maneuvering Jets only cancels hits on your own units, and the other combat cards refer to you, your units or your opponent. Bystanders can still play Sabotage, and a few cards like Scramble Frequency.
Can Emergency Repairs save a ship from Direct Hit?
Several experienced players agree; there is no official ruling on BGG.
- sigmazero13 · Community · 2019-04-22
- csouth154 · Community · 2019-04-22
No — Direct Hit is played as Sustain Damage is used, while hits are being assigned; Emergency Repairs comes at the end of the round, too late.
Does Scramble Frequency reroll all the dice of a unit ability?
Yes — all of that ability's dice are rolled together, so the card rerolls all of them, across different values or bombarded planets.
Does Signal Jamming take command tokens from more than one player?
No — it names a single other player, whose reinforcements supply the one token you place; that player must have one there for the card to be playable.
Does Maneuvering Jets protect infantry from Space Cannon Defense?
Yes — it cancels Space Cannon hits on your ground forces as well as your ships, but only hits on your own units.
Promissory Notes
Do I have to play a promissory note, such as Ceasefire, as soon as its timing comes up?
Several experienced players agree; there is no official ruling on BGG.
- csouth154 · Community · 2019-04-29
- halbower · Community · 2026-02-21
- AgentDrake · Community · 2026-02-21
- Clipper · Community · 2020-12-27
- Falcone1983 · Community · 2017-11-29
- hooliganj · Community · 2017-08-26
No — promissory notes are never mandatory unless the note says to play it immediately or place it face up. You can hold it and decide each time its timing window arises. This means the holder may choose not to play it; it does not let the note's owner refuse to honor it once played.
Does the Letnev War Funding promissory note still work if the Letnev player has fewer than 2 trade goods?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- sigmazero13 · Community · 2018-01-10
- sigmazero13 · Community · 2018-01-10
- Clipper · Community · 2018-04-12
- IndyBart · Community · 2018-04-12
- IndyBart · Community · 2017-09-26
Yes — the reroll still applies. The trade-good loss and the reroll are printed as separate paragraphs, so they are separate abilities, and the reroll does not depend on the Letnev being able to pay.
Can L1Z1X Cybernetic Enhancements or Xxcha Political Favor be used if their owner has no command token in the strategy pool?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- sigmazero13 · Community · 2017-11-07
- sigmazero13 · Community · 2018-01-10
- Clipper · Community · 2018-04-12
- IncrediSteve · Community · 2019-02-17
- IncrediSteve · Community · 2019-09-08
- RedLuigi · Community · 2017-09-26disagrees
No — each of these notes is a single paragraph where the benefit follows from removing the owner's strategy token, so if there is no token to remove, nothing on it resolves. The separate 'return this card' paragraph is judged on its own.
Does Sol's Military Support work if Sol has no strategy token, and can its 2 infantry go on different planets?
Several experienced players agree; there is no official ruling on BGG.
- Pete Walsh · Community · 2021-07-26
- Clipper · Community · 2018-04-12
- Clipper · Community · 2021-07-30
- Marcial · Community · 2021-07-30
It works without a token — the note only spends Sol's strategy token if able. But both infantry go on a single planet you control; the card says one planet, in English and in translations.
When must I return another player's Support for the Throne?
As soon as you activate a system containing any of that player's units, whether or not you move in or attack. Units include their ships, ground forces, space docks and PDS, but not control tokens, so activating a system where they only have control tokens is fine. Putting a command token in a system by other means is not activating it.
If I hold Mentak's Promise of Protection without playing it, must I return it when I activate a Mentak system?
Several experienced players agree; there is no official ruling on BGG.
- sigmazero13 · Community · 2018-09-01
- Clipper · Community · 2018-09-01
No — a note you have not played face up ignores its own return conditions. But it also doesn't protect you from Pillage until it is face up in your play area.
Can the Creuss IFF note put a wormhole token in a system with enemy ships if I control a planet there?
Yes — the two placement options are alternatives: a system containing a planet you control, or a non-home system with no other players' ships. Meeting either is enough, so enemy ships or a blockade don't matter if you control a planet there.
Can I receive Creuss IFF in a transaction at the start of my turn and play it in that same window?
Several experienced players agree; there is no official ruling on BGG.
- Darkmancer · Community · 2017-10-03
- Clipper · Community · 2018-01-23
- DaNewHaida · Community · 2018-01-23
Yes — it is still the start of your turn until you actually take an action, so you can trade for the note and then resolve its start-of-turn ability.
Who can play the Yin Greyfire Mutagen note, and in which systems?
Any player holding it can play it whenever a system is activated for a tactical action, regardless of which player is the active player.
Does the Arborec Stymie note stop the Arborec from producing in their home system?
No — Stymie only covers non-home systems containing the holder's units and the systems adjacent to them, so the Arborec home system is never blocked.
When must Ceasefire be played?
Several experienced players agree; there is no official ruling on BGG.
- Geoff Watson · Community · 2019-07-01
- Morix_Jak · Community · 2019-07-01
- sigmazero13 · Community · 2020-10-09
Right after the system is activated, before any ships move; once ships have moved it's too late. The active player doesn't have to announce what will move first, and their own after-activation cards like Flank Speed get the first chance in that window.
Can Letnev's War Funding or The Crown of Thalnos reroll Anti-Fighter Barrage dice?
Players disagree; this is the better-supported reading, with no official ruling.
- ajmarshall · Community · 2021-04-17
- Kazadoom · Community · 2021-04-16
- Kazadoom · Community · 2021-04-17
- ajmarshall · Community · 2021-04-15
- Kazadoom · Community · 2021-04-17disagrees
No — effects that modify or reroll combat rolls don't apply to Anti-Fighter Barrage, and players report the designer said War Funding wasn't meant to work with it. The card's 'any rolls this round' wording is read loosely by some.
Base Factions: Arborec to Letnev
Who assigns the L1Z1X flagship's hits?
One experienced player's reading; no official ruling or wider agreement.
- Clipper · Community · 2021-08-06
The opponent, as with any hits unless an ability says otherwise; if only fighters are left, they take the hits.
Can Creuss use a wormhole token to get into an asteroid field protected by Saar's Chaos Mapping?
No — Chaos Mapping says other players can't activate it, and 'cannot' is absolute; Creuss can place the token there but still can't activate the system to move in.
When does the Arborec flagship produce, and can it move in first?
Several experienced players agree; there is no official ruling on BGG.
- Weltenreiter · Community · 2018-05-28
- Weltenreiter · Community · 2018-05-28
- TomBoombs · Community · 2018-05-29
- halbower · Community · 2017-09-05
It produces right after its system is activated, before movement, so it only works if it is already in the active system; it can't move in and then produce. Its units go on planets you control or in the space area, never on enemy planets.
Are the Ghosts of Creuss neighbors with a player on a beta wormhole when Creuss sits on an alpha wormhole?
Yes — Quantum Entanglement makes alpha and beta wormholes adjacent for Creuss, and adjacency created that way also makes them neighbors, so the two players can transact.
How many Creuss wormhole tokens are there, and is there a delta wormhole token?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2023-03-19
- Arcadious · Community · 2023-03-19
The tokens are limited, and abilities say to place or move them rather than adding more. A full copy with Prophecy of Kings has three Creuss tokens (alpha, beta and gamma). Their faction-symbol backs are not delta wormholes. The flagship's delta wormhole needs no token; it travels with the ship.
When Jol-Nar uses Brilliant to resolve the Technology primary as a secondary, do they need another token for the second tech?
Several experienced players agree; there is no official ruling on BGG.
- AgentDrake · Community · 2017-11-30
- void_presence · Community · 2017-11-30
No — they pay one strategy token, then resolve the full primary: research one technology and optionally spend 6 resources for a second.
How does the L1Z1X Harrow ability work?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- pkitty · Community · 2017-12-16
- sigmazero13 · Community · 2018-02-16
- sigmazero13 · Community · 2018-02-19
- Clipper · Community · 2018-02-20
- Clipper · Community · 2021-08-05
- Kesh · Community · 2018-02-14disagrees
Per errata it triggers at the end of each round of ground combat, as Bombardment from L1Z1X ships in the active system. Every ship with Bombardment there can join in, not just those that bombarded that planet. It still resolves after the round in which L1Z1X lose their last ground force; if it then kills the last defender, the combat is a draw. Planetary Shield stops it.
How many hits can the Jol-Nar flagship produce?
Each die showing 9 or 10 produces its normal hit plus 2 more, so its two dice can make up to 6 hits.
How does the Hacan flagship's trade-good bonus work?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2021-08-11
- IncrediSteve · Community · 2025-12-21
- Clipper · Community · 2020-07-14
- IncrediSteve · Community · 2018-09-02
Roll all your combat dice first, then spend 1 trade good for +1 on any of your units' dice in its system, at most once per die. It only modifies combat rolls, not Space Cannon or other ability rolls.
Can Letnev use Munitions Reserves every round, and does it cover Anti-Fighter Barrage?
Several experienced players agree; there is no official ruling on BGG.
- chrisdk · Community · 2023-01-08
- IncrediSteve · Community · 2023-01-08
- hooliganj · Community · 2023-01-08
- zamoose · Community · 2023-01-08disagrees
Every round, paying 2 trade goods each time, to reroll any of their dice that round. Whether it covers Anti-Fighter Barrage is debated; the better-supported view is yes, since barrage is part of the first combat round.
With Jol-Nar's Fragile, can their fighters still hit?
Yes, on a 10: the -1 makes it 9, which still meets the fighter's combat value of 9. Fragile only affects combat rolls, not Space Cannon, Bombardment or Anti-Fighter Barrage.
How does Non-Euclidean Shielding work?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2019-12-29
- csouth154 · Community · 2019-09-12
- sigmazero13 · Community · 2018-08-20
- sigmazero13 · Community · 2018-08-20
Every time one of your units uses Sustain Damage, it cancels 2 hits instead of 1, and that unit can still be assigned one of the remaining hits. Unused cancellation is lost; it doesn't carry over to a later hit such as Devotion's.
How does Arborec infantry Production work?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- Jimb0v · Community · 2017-09-18
- IncrediSteve · Community · 2017-09-18
- IncrediSteve · Community · 2021-01-03
- RoughFudge · Community · 2021-09-09
- Clipper · Community · 2018-01-07
- Clipper · Community · 2017-12-11
Each Letani Warrior I has Production 1 (II has 2) and can build any unit you can pay for, ships included, with no space dock; they still pay resources. Their Production pools with your other units in the system, and they can produce in a system they just moved into, or from aboard ships. Arborec space docks can never produce infantry, so infantry output is capped by the Letani Warriors' own Production. Blockaded Letani can only make ground forces.
How does the Arborec flagship's produce-5 ability work?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2018-11-10
- hooliganj · Community · 2018-11-10
- sigmazero13 · Community · 2017-11-22
- DrewDecimal · Community · 2020-02-23
- Crikrunner · Community · 2017-09-24
- woofdine · Community · 2018-02-02
Right after you activate the system it is already in, before movement, you may produce up to 5 units there, paying as normal; it isn't the Production step, so the regular production step still follows later. It can't move in first and then produce. Structures can't be produced this way.
How do the Hacan trade action cards?
Several experienced players agree; there is no official ruling on BGG.
- Duskwalker · Community · 2019-01-31
- zamoose · Community · 2019-01-31
- hooliganj · Community · 2021-05-18
- hooliganj · Community · 2021-05-18
- sigmazero13 · Community · 2017-11-21
- AgentDrake · Community · 2026-01-04
Any number of action cards can go either way in a transaction the Hacan are part of, still within one transaction per player per turn. The Hacan, or anyone trading with them, can transact regardless of neighbors, on either player's turn, though the active player must be involved.
Base Factions: Mentak, Naalu and Nekro
How often can the Mentak use Pillage, and does it work in the agenda phase against everyone?
The developer ruled on the agenda-phase part directly on BGG in 2019; players agree on the rest.
- CreussEmissary · Designer · 2019-01-17
- JesperPersson · Community · 2018-01-30
- sigmazero13 · Community · 2018-01-30
- sigmazero13 · Community · 2019-05-01
- Severedeye · Community · 2019-01-17disagrees
Pillage triggers separately each time a neighbor gains trade goods or resolves a transaction and ends with 3 or more, so it can hit each qualifying neighbor, in any phase. But the agenda phase does not make everyone neighbors: transactions with non-neighbors are allowed then, yet Pillage still only works on the Mentak's actual neighbors, as the developer ruled.
How often can the Naalu use Foresight, and what triggers it?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2022-05-06
- ajmarshall · Community · 2022-05-06
- IncrediSteve · Community · 2017-11-20
- LovingAngel · Community · 2017-11-21
- Clipper · Community · 2019-02-21
- hooliganj · Community · 2020-01-26disagrees
As often as they have strategy tokens and an eligible system to move to — there is no per-round limit. It needs another player's ships to actually move into and stop in the Naalu ships' system: not a ship merely passing through, and not an activation with nothing moved in. A Naalu command token already in that system doesn't block it, just as it wouldn't block a retreat.
How do ground forces fighting with the Nekro Virus flagship work?
Several experienced players agree; there is no official ruling on BGG.
- McBartsomeville · Community · 2024-08-06
- pkitty · Community · 2024-08-06
- Weltenreiter · Community · 2018-11-16
- Soul_ · Community · 2018-11-16
- hooliganj · Community · 2018-01-07
They take part in the space combat as if they were ships, so the opponent can assign hits to them. They are not ships for any other purpose, so they don't count against your fleet pool or your ships' capacity.
Can the Nekro gain technologies from both the space combat and the ground combat of one tactical action?
Yes — Technological Singularity works once per combat, and each space combat and each ground combat is a separate combat. Note that if you bombard the last defender before landing, there is no ground combat on that planet.
Does the Nekro Virus pay normally to use the Technology secondary?
Yes — like anyone they spend a strategy token and 4 resources, and because they can't research, Propagation gives them 3 command tokens instead.
Can Naalu fighters fighting with the Matriarch win a ground combat or take control of a planet?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- Skootur · Community · 2017-10-12
- aegiscruiser · Community · 2017-10-12
- aegiscruiser · Community · 2017-12-22
- sigmazero13 · Community · 2018-02-20
- McBartsomeville · Community · 2021-08-08
- aegiscruiser · Community · 2017-10-05disagrees
No. They join ground combat with all bonuses, but per the errata they return to space when combat ends, before a winner is decided. If only fighters remain, the combat is a draw, Dacxive Animators doesn't trigger, and the defender keeps the planet. You need actual ground forces to take control.
Which kills trigger Nekro's Technological Singularity?
Several experienced players agree; there is no official ruling on BGG.
- Ndjcirnc · Community · 2022-01-25
- Clipper · Community · 2018-01-22
- sigmazero13 · Community · 2019-09-10
- Clipper · Community · 2020-08-26
- Clipper · Community · 2020-10-11
- DrewDecimal · Community · 2020-10-11
Only an opponent's units destroyed during a space or ground combat the Nekro are part of; it triggers as soon as the unit dies. Kills from Space Cannon, Bombardment, or structures destroyed when control is established don't count, since those happen outside combat. Anti-Fighter Barrage is part of combat and counts.
How do Nekro ground forces fighting via the flagship count for other effects?
Several experienced players agree; there is no official ruling on BGG.
- divzip · Community · 2021-10-08
- GamerdadMich · Community · 2018-01-10
- csouth154 · Community · 2019-09-10
- IncrediSteve · Community · 2017-11-26
- hooliganj · Community · 2023-11-29
- mliszewski · Community · 2020-06-22
They take part as ships for that combat, so they count as non-fighter ships for things like the Winnu flagship's extra dice (per the LRR FAQ) and probably Assault Cannon. Effects naming a specific ship type, like fighters or destroyers, never apply to them. Carried infantry can join too, then land and fight on the ground the same action. If Assault Cannon hits Nekro when the flagship is their only non-fighter ship, the flagship must go.
Do Mentak ships that Ambush still roll in the first round, and how does The Fourth Moon block Sustain Damage?
Several experienced players agree; there is no official ruling on BGG.
- Crikrunner · Community · 2017-11-28
- musique · Community · 2023-02-14
- Clipper · Community · 2021-09-08
- zamoose · Community · 2021-09-08
Ambush is an extra roll at the start of combat; those ships still roll normally from the first round. The Fourth Moon stops other players' Sustain Damage in any round it takes part in, including the round it is destroyed, because Sustain Damage is used before hits remove it.
When does Naalu Foresight happen, and where can the ships go?
Several experienced players agree; there is no official ruling on BGG.
- Marcial · Community · 2021-09-03
- selcos21 · Community · 2022-04-15
- IncrediSteve · Community · 2022-04-15
- McBartsomeville · Community · 2022-04-20
- IncrediSteve · Community · 2022-04-20
- csouth154 · Community · 2019-10-08
Right after the other player's ships move in, before Space Cannon Offense, so the Naalu leave before PDS fire, and Space Cannon can't follow them. They may go to any adjacent system without other players' ships, including the one the attacker just vacated or one with only enemy structures, but can't land ground forces there. Intercept doesn't stop it, as it isn't a combat retreat.
What combat value do Naalu fighters use in ground combat, and can they fight on two planets?
Several experienced players agree; there is no official ruling on BGG.
- IndyBart · Community · 2020-02-21
- sigmazero13 · Community · 2020-02-21
- Clipper · Community · 2017-12-17
- sigmazero13 · Community · 2019-08-20
- Clipper · Community · 2019-08-20
Their own fighter combat value, upgrades included; they act as ground forces but aren't infantry. All ground forces are committed in one step before any combat, so the same fighters can't fight on two planets in one invasion.
How does Mentak's Ambush work?
Several experienced players agree; there is no official ruling on BGG.
- sigmazero13 · Community · 2019-06-20
- sigmazero13 · Community · 2018-07-27
- Clipper · Community · 2018-07-27
- TomBoombs · Community · 2018-06-28
- rico761028 · Community · 2017-08-20
- Surge72 · Community · 2020-12-09
At the start of space combat, before Anti-Fighter Barrage, roll one die for each of up to 2 cruisers or destroyers, mixed as you like. Hits are removed at once and destroyed ships never fire back. It isn't a combat roll, so Morale Boost doesn't apply, and the ambushing ships still roll normally from the first round.
Does the Mentak flagship stop Sustain Damage against Space Cannon hits too?
One experienced player's reading; no official ruling or wider agreement.
- Clipper · Community · 2019-11-29
Yes — other players' ships in its system can't use Sustain Damage at all, whatever the source of the hit.
When the Nekro Virus gain a technology, does the other player lose it?
No — the Nekro take the matching card from their own technology deck, and gaining ignores prerequisites. The Nekro choose which eligible technology to take, and it works immediately, even for the rest of that combat. It triggers when any opponent's unit is destroyed in combat, even one the Yin sacrifice with Devotion or one killed by Assault Cannon or Anti-Fighter Barrage.
What can the Nekro copy with Valefar Assimilator?
Faction technology cards another player has actually researched, unit upgrades included, two at a time, one per token; to copy a third you move a token. Units printed on faction sheets, like Muaat's Prototype War Sun I or flagships, aren't technologies and can't be copied (the Nomad's Memoria II card is the exception). Copying a faction war sun technology does make the Nekro subject to Publicize Weapon Schematics.
What happens to the Nekro's own unit upgrades when they copy a faction upgrade for the same unit?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- TomBoombs · Community · 2018-03-07
- sigmazero13 · Community · 2018-03-07
- sigmazero13 · Community · 2018-03-07
- hooliganj · Community · 2019-02-05
- Clipper · Community · 2019-02-06
- Nyarlathotep90 · Community · 2018-03-07disagrees
The copied faction upgrade covers your generic one, which you keep; only one is in effect. Move the token away and the generic upgrade applies again. A second faction upgrade for the same unit replaces the first, using the same token.
What happens when the Nekro move a Valefar token off a technology their units depend on?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- Vidyaraja · Community · 2017-09-18
- sigmazero13 · Community · 2017-09-18
- Skootur · Community · 2017-09-18
- sigmazero13 · Community · 2018-01-18
- PotBellyNinja · Community · 2018-01-18
The copied tech is swapped, not stacked. Lose a war sun technology with no replacement and all Nekro war suns are destroyed. Lose a copied Floating Factory II and each dock in space moves to a planet you control in its system, or is destroyed if none qualifies. Ships already in a supernova after losing Magmus Reactor are fine.
Can the Nekro use technology specialties?
Several experienced players agree; there is no official ruling on BGG.
- csouth154 · Community · 2019-09-21
- Robo Fish · Community · 2018-05-14
- Ragnarwarbar · Community · 2018-08-07
- Benj_ · Community · 2018-08-07
Not for research, since they never research; Propagation gives command tokens instead, and they still pay the normal cost to follow Technology.
What are the Nekro's X and Y tokens for?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2017-12-05
- sigmazero13 · Community · 2017-12-05
They mark which faction technologies the Nekro are copying with their two Valefar Assimilator technologies.
When exactly can Mentak use Pillage?
Several experienced players agree; there is no official ruling on BGG.
- donmakaron · Community · 2019-03-01
- MollyMae · Community · 2019-03-01
- Clipper · Community · 2018-08-08
- IncrediSteve · Community · 2022-12-29
- pkitty · Community · 2022-08-23
- Clipper · Community · 2021-09-04
After each instance of a neighbor gaining trade goods or resolving a transaction, if that neighbor then has 3 or more trade goods and no face-up Promise of Protection. Both sides of a transaction between two neighbors can each be pillaged, in the order Mentak chooses, and receiving converted commodities counts as gaining trade goods. Nobody can dump trade goods between the trigger and Pillage. A commodity taken becomes a trade good.
Base Factions: Saar to Yssaril
If Yin's Indoctrination replaces the only defending infantry, have the Yin won the ground combat?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2023-09-16
- TomBoombs · Community · 2018-01-26
- Clipper · Community · 2018-01-26
- Clipper · Community · 2021-08-09
- dsjensen19 · Community · 2018-01-26disagrees
Yes — Indoctrination is used once the ground combat has begun, so if it removes the last defender the Yin win, which counts for Dacxive Animators and 'win a combat' objectives, and any card the opponent played is wasted. If Bombardment had already killed every defender, there is no ground combat to win.
Are Saar Floating Factories ships, and do they count against the fleet pool?
The game's developer answered this directly on BGG in 2018.
- CreussEmissary · Designer · 2018-01-05
- Pete Walsh · Community · 2018-01-01
- Clipper · Community · 2018-01-01superseded
No — Floating Factories are never ships; they only move and retreat as if they were. They don't count against your fleet pool, but every ability that affects movement, such as Gravity Drive, Flank Speed, Antimass Deflectors or Light/Wave Deflector, still applies to them and the ships moving with them.
“The general movement of the Floating Factory and its accompanying ships (if any) shouldn’t be hindered by the fact that it is not technically a ship.”
— CreussEmissary, designer
Can Space Cannon fire at, or hits be assigned to, a Saar Floating Factory when it moves?
The developer reversed his own earlier ruling directly on BGG in 2018 and moved it into the FAQ.
- CreussEmissary · Designer · 2018-01-05
- Padish · Community · 2017-12-20
- halbower · Community · 2017-12-20
- kaiteinomen · Community · 2018-03-12
- Clipper · Community · 2018-01-01superseded
No — PDS cannot fire at a moving Floating Factory, and hits cannot be assigned to it because it is not a ship. The developer originally ruled the other way, then publicly reversed himself in January 2018 and put the corrected ruling in the FAQ.
“no—PDS cannot fire at a Floating Factory when it moves. I’ll make it clear in the FAQ.”
— CreussEmissary, designer
Where do Saar Floating Factories go, and how many can share a system?
Several experienced players agree; there is no official ruling on BGG.
- CplPunishment · Community · 2019-09-17
- jradziew · Community · 2019-09-17
- IncrediSteve · Community · 2019-04-06
- Clipper · Community · 2021-09-11
In the space area, never on a planet. If an effect places a space dock on a planet, choose the planet as the effect says, then the Floating Factory's own rule puts it in that system's space area. There is no limit on how many share a system, and their production value is fixed rather than based on a planet. A Floating Factory is destroyed if it is left without your ships against enemy ships.
What is Yssaril's Stall Tactics for, and can it be Sabotaged?
Several experienced players agree; there is no official ruling on BGG.
- hooliganj · Community · 2017-12-04
- j76goatboy · Community · 2017-12-04
- Weltenreiter · Community · 2018-11-24
- IncrediSteve · Community · 2021-08-06
It lets Yssaril spend an action discarding an action card instead of passing, so they can wait for others to act first. It is a faction ability, not an action card, so Sabotage cannot cancel it.
Can units carried by the Yssaril flagship pass through systems with enemy ships, and can other Yssaril ships move with it?
One experienced player's reading; no official ruling or wider agreement.
- IncrediSteve · Community · 2021-08-06
Fighters and ground forces it transports go wherever the flagship goes, including through such systems. Other Yssaril ships moving alongside it don't gain the ability.
Can Xxcha's Peace Accords take a planet another player controls if no units are on it?
Several experienced players agree; there is no official ruling on BGG.
- Weltenreiter · Community · 2019-07-31
- ajmarshall · Community · 2021-06-26
Yes — the condition refers to units on the planet itself, so an enemy-controlled planet with no units on it qualifies, as long as it meets the ability's other conditions, such as adjacency.
Can Sol's Orbital Drop be used more than once a round, and can its 2 infantry go on different planets?
Several experienced players agree; there is no official ruling on BGG.
- DauntlessK · Community · 2019-02-24
- Sande24 · Community · 2019-02-24
- Clipper · Community · 2021-07-30
It can be used as many times as you have tokens in your strategy pool, each use as a separate action. Both infantry go on one planet you control.
When must Xxcha use Nullification Field, and what can still happen after it ends the turn?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2023-07-23
- Falkman · Community · 2023-07-24
- Sabutai · Community · 2018-12-04
- IncrediSteve · Community · 2020-12-21
- Clipper · Community · 2021-08-23
- ajmarshall · Community · 2022-02-25
It must be used right after the system is activated, before movement; Xxcha may ask the active player to pause. The active player gets first turn in that window, so their own after-activation cards like In the Silence of Space or Flank Speed resolve first and stay spent. Once the turn ends, nothing more happens in it: no further after-activation abilities, no transactions and no extra action from Master Plan.
Does Yssaril's Scheming trigger on cards taken from other players, and does their unlimited hand protect against forced discards?
Several experienced players agree; there is no official ruling on BGG.
- Weltenreiter · Community · 2019-04-24
- Clipper · Community · 2019-04-24
No to both. Scheming only triggers when you draw action cards from the deck, not when you take or receive them from a player. Ignoring the hand limit doesn't stop effects that make you discard.
How does the Yin's Devotion work?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- Verkan · Community · 2018-02-04
- Clipper · Community · 2018-02-06
- pkitty · Community · 2017-12-16
- Clipper · Community · 2021-08-03
- TheSupremeAdmiral · Community · 2020-10-04
- IncrediSteve · Community · 2019-07-31
After a round of space combat, Yin may destroy one of their cruisers or destroyers in the active system — the errata adds 'in the active system' — to produce a hit that the Yin player assigns to an enemy ship. It is a single faction ability, so once per combat round. It has different timing from Impulse Core, so both can be used in one combat. Indoctrination works once per ground combat, at its start.
What happens to a Saar Floating Factory when enemy ships arrive, and can it retreat?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- garfielder · Community · 2017-09-19
- sigmazero13 · Community · 2017-09-19
- Clipper · Community · 2019-04-25
- Clipper · Community · 2018-03-25
- TomBoombs · Community · 2018-03-26
If it is alone with enemy ships, it is destroyed before anything can be done, as there is no combat to retreat from, Skilled Retreat included. If other Saar ships, even fighters, are with it, it can retreat or Skilled Retreat with them as long as it is never left alone with enemy ships.
When exactly can Exotrireme II use its ability?
Several experienced players agree; there is no official ruling on BGG.
- TomBoombs · Community · 2018-01-04
- Dulkal · Community · 2018-01-04
- christhomas226 · Community · 2022-04-10
- Clipper · Community · 2021-08-03
- Clipper · Community · 2021-08-03
At the end of a round of space combat, after hits are assigned and retreats announced; it can't be used if that Exotrireme was destroyed or a retreat was announced. A dreadnought can use Sustain Damage that round and still be sacrificed afterwards. Each Exotrireme II has its own copy, resolved one at a time.
How do Sardakk's Unrelenting and flagship bonuses work?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2024-10-09
- Clipper · Community · 2021-08-03
Unrelenting adds +1 to Sardakk combat rolls only, not to Bombardment or other unit abilities. The flagship gives other ships in its system another +1, so a war sun there gets +2 and the flagship itself +1.
Does Greyfire Mutagen stop the Yin flagship from destroying the ships in its system?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- Clipper · Community · 2018-03-12
- sigmazero13 · Community · 2018-03-12
- sigmazero13 · Community · 2018-03-14
- aegiscruiser · Community · 2017-11-27
No — a flagship's ability is a unit ability, not a faction ability, so Greyfire Mutagen doesn't affect it.
Can each Winnu flagship die score a hit?
Several experienced players agree; there is no official ruling on BGG.
- Amuk · Community · 2018-02-25
- Weltenreiter · Community · 2018-02-25
Yes — it rolls one die per enemy non-fighter ship, and each die that meets its combat value is a hit.
How does Saar's Ragh's Call work in an invasion?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2019-09-10
- UtileDulci · Community · 2023-08-12
- isterbat · Community · 2023-08-12
It is played after ground forces are committed, before Space Cannon Defense, and moves the Saar ground forces from one planet to another single planet, so it covers one planet per use.
Does the Yin flagship's self-destruct destroy a Saar Floating Factory?
One experienced player's reading; no official ruling or wider agreement.
- stugal · Community · 2019-01-22
No — it destroys ships, and Floating Factories aren't ships.
Can Saar Floating Factories move and produce in the same action, and how many can share a system?
Several experienced players agree; there is no official ruling on BGG.
- hooliganj · Community · 2026-08-30
- IncrediSteve · Community · 2017-09-08
- selwyth · Community · 2026-03-22
- hooliganj · Community · 2017-11-22
- IndyBart · Community · 2019-01-20
- sigmazero13 · Community · 2019-11-14
Yes — nothing requires a dock to start the turn in the active system, so a Floating Factory can move in, carry ground forces to invade, and produce. Any number can share a system, since they sit in space and aren't bound by one dock per planet, and two of them combine Production. A Floating Factory is blockaded, and destroyed, the moment enemy ships arrive without Saar ships.
How does Saar's Chaos Mapping production work?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- GrumblingGamer · Community · 2019-01-04
- Zejety · Community · 2020-07-15
- Marcial · Community · 2020-07-15
- Darkmancer · Community · 2017-09-16
- Clipper · Community · 2019-09-10
- Clipper · Community · 2018-08-19
At the start of each of your turns, including the turn you pass, you may produce one unit in a system with your Production units; one unit total, not one per system. It needs no command token and you still pay for it, but no unit's Production ability is used, so Sarween Tools doesn't apply.
How many infantry does Yin Spinner give, and does it trigger off Integrated Economy?
The original gives one infantry per use of Production, however many units produced, on any planet you control in that system, and works with the Warfare secondary; it doesn't trigger from Integrated Economy, which uses no Production ability. The Omega version gives 2 infantry, triggers whenever you produce, and changes placement.
How long does Winnu's Hegemonic Trade Policy last?
One experienced player's reading; no official ruling or wider agreement.
- pkitty · Community · 2017-12-16
Only for that one use of Production, per its errata.
What does Lazax Gate Folding do?
One experienced player's reading; no official ruling or wider agreement.
- Marcial · Community · 2021-09-24
If you don't control Mecatol Rex, during your tactical actions its system counts as containing both an alpha and a beta wormhole.
Elimination and Game End
When does the game end if nobody reaches 10 victory points?
The rulebook covers this under "Winning the Game".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Winning the Game
- IncrediSteve · Community · 2017-08-16
- Clipper · Community · 2020-10-05
- Clipper · Community · 2021-08-27
- CBpegasus · Community · 2017-12-15
When the speaker has to reveal a public objective in the status phase and none remain. The game ends right there, with no agenda phase, and the player with the most points wins. With five stage I and five stage II objectives, that is round 9 at the latest.
If two players could both reach 10 points in the same status phase, who wins?
The rulebook covers this under "Object of the Game".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Object of the Game
- TomBoombs · Community · 2018-05-22
- mliszewski · Community · 2018-07-30
- Clipper · Community · 2018-07-30
- IncrediSteve · Community · 2018-11-09
- Ragnarwarbar · Community · 2018-07-30disagrees
The first one in initiative order. Objectives are scored one player at a time in initiative order and the game ends the instant someone reaches the goal, so later players never score. The speaker-order tiebreak only covers truly simultaneous gains.
If two players reach 10 points at the same moment in the agenda phase, who wins?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- alercah · Community · 2017-11-22
- Technopinky · Community · 2017-11-19
- hooliganj · Community · 2018-08-01
- Clipper · Community · 2020-04-29
- IncrediSteve · Community · 2018-01-07
- Dalek5 · Community · 2017-11-19disagrees
Start with the speaker and go clockwise: the tied speaker wins, otherwise the first tied player clockwise from the speaker. Strategy cards have no bearing in the agenda phase, so initiative order doesn't apply.
If two players swap Support for the Throne and both would hit 10, who wins?
Several experienced players agree; there is no official ruling on BGG.
- hooliganj · Community · 2019-07-14
- Geoff Watson · Community · 2019-07-13
- Clipper · Community · 2019-07-15
- hooliganj · Community · 2019-07-18
Only one player can win. The swapped notes resolve one after the other in normal timing order, so the player who gains the point first wins and the game ends before the other scores. There are no shared victories.
Can a player win during the action phase?
The rulebook covers this under "Winning the Game".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Winning the Game
- sigmazero13 · Community · 2019-10-07
- hooliganj · Community · 2019-10-07
- ysirian · Community · 2019-10-07
- sigmazero13 · Community · 2019-10-07
Yes — the game ends the moment anyone reaches the goal. Points can come in the action phase from action-phase secret objectives, the Imperial card (including scoring a public objective), the custodians token and some agendas.
Is there an official longer game?
The rulebook covers this under "Object of the Game".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Object of the Game
- pkitty · Community · 2017-08-17
- Becq · Community · 2017-08-17
Yes — flip the victory point track to its 14-point side and play to 14 instead of 10.
When is a player eliminated?
The rulebook covers this under "Elimination".
- Twilight Imperium: Fourth Edition rulebook · Rulebook · Elimination
- Clipper · Community · 2019-09-10
Only when all three are true: no ground forces on the board, no units with Production, and no planets controlled. Ships alone don't keep you in the game if the rest is gone.
After a player is eliminated, do the remaining players pick more strategy cards?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2025-03-03
- sigmazero13 · Community · 2018-10-15
- Clipper · Community · 2018-10-15
- Clipper · Community · 2019-02-05
- Crikrunner · Community · 2018-08-06
- SnakePlissken72 · Community · 2025-03-03disagrees
No — keep the strategy card rules for the player count you started with, so a five-player game doesn't become a four-player game; the extra cards just collect trade goods. An eliminated player's unused strategy card is never resolved and returns at the end of the round, and agendas they owned are discarded.
When a player is eliminated, do their wormhole tokens or Naalu 0 token leave the game?
Several experienced players agree; there is no official ruling on BGG.
- sigmazero13 · Community · 2018-03-12
- Clipper · Community · 2018-03-12
- MollyMae · Community · 2018-03-12
Not automatically — the elimination rule doesn't list them, so placed Creuss wormhole tokens stay on the board, and a Naalu 0 token held by another player through the promissory note stays until the end of that round.
What happens to a technology the Nekro copied with Valefar Assimilator if its owner is eliminated?
The Nekro takes that technology card into their play area and keeps it until they move the token or the game ends; then it returns to the box with the eliminated player's components.
Twilight Imperium: Fourth Edition – Prophecy of KingsExpansion
How does strategy card selection work under Checks and Balances?
Several experienced players agree; there is no official ruling on BGG.
- DistantOasis · Community · 2021-09-12
- Clipper · Community · 2021-09-09
Turn order stays the same, but on your pick you give the card you choose to a player who doesn't yet have their full number of cards. Only if nobody else can take it, as for the last picker, do you keep it.
If Miscount Disclosed revotes Political Censure, who gains or loses points?
Political Censure says you lose its point when you lose the card, so the previous owner loses 1 and the new owner gains 1; the same player re-elected loses and regains it. That differs from Shard of the Throne and similar laws.
If several Council Keleres mechs are on a planet, does the invader pay 1 influence for each?
Yes — each mech is its own instance of the ability, so the attacker pays 1 influence per mech. The influence can come from any mix of planets and trade goods; it doesn't have to be one planet per mech.
How do the Council Keleres choose their home system and hero?
One experienced player's reading; no official ruling or wider agreement.
- AgentDrake · Community · 2022-04-27
Through The Tribunii: at setup they pick an unused faction from Mentak, Xxcha and Argent Flight and take that faction's home system, tokens and matching Keleres hero.
Does the tactical action granted by the Codex Naalu agent use a token from the tactic pool, and whose turn is it?
Several experienced players agree; there is no official ruling on BGG.
- Old_Man_gi · Community · 2022-06-15
- guestid1250 · Community · 2022-06-15
- brusazorzo · Community · 2022-06-24
- IncrediSteve · Community · 2022-06-24
No token is spent from the tactic pool. The tactical action happens during the Naalu player's turn, so an effect that ends the turn, like Xxcha's Nullification Field, ends the Naalu turn and the borrowed tactical action with it.
Does Custodia Vigilia give command tokens when another player scores a public objective with Imperial?
Players disagree; this is the better-supported reading, with no official ruling.
- Strider809 · Community · 2023-02-28
- Clipper · Community · 2022-04-25
- AgentDrake · Community · 2022-04-25disagrees
No — it only triggers when a player gains the victory point from Imperial's Mecatol Rex ability, not when they score a public objective using Imperial.
Can Mahact use Decoy Operation to move a Starlancer mech into the active system and then use the mech to end the active player's turn?
Players disagree; this is the better-supported reading, with no official ruling.
- IncrediSteve · Community · 2023-06-04
- SeanSealey · Community · 2023-06-07
- MollyMae · Community · 2023-06-07disagrees
Probably yes. Both trigger after the system is activated, and a player resolving several abilities in one window chooses their order, so Decoy Operation can go first and the Starlancer ability second. Some players think it fails, by analogy with other rulings.
Can the Xxcha agent ready another player's planet and remove their infantry?
Several experienced players agree; there is no official ruling on BGG.
- hannibal555 · Community · 2022-07-23
- Clipper · Community · 2022-07-24
Yes — it can ready any planet, including another player's, and if that planet is adjacent to a planet you control, the infantry you remove can be another player's too.
How do you capture fighters and infantry?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2021-08-28
- Clipper · Community · 2021-08-28
- AgentDrake · Community · 2021-08-21
Only the Vuil'raith capture units, through their own abilities (or a faction copying those). A captured ship or mech goes on the captor's faction sheet. A captured fighter or infantry goes back to its owner's reinforcements as if destroyed, and the captor places a matching token on their faction sheet instead; those tokens still count for Cabal abilities.
Can Titans put more than one sleeper on a planet with Terragenesis, or one on Mecatol Rex?
Several experienced players agree; there is no official ruling on BGG.
- DistantOasis · Community · 2021-01-26
- IncrediSteve · Community · 2021-01-26
- hooliganj · Community · 2021-01-26
No to both. Terragenesis triggers after you explore a planet without a sleeper and places one token, so a planet holds at most one. Mecatol Rex and home planets have no trait and can't be explored, so they never get one this way.
Does the Vuil'raith flagship capture units destroyed at the same moment it is destroyed?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
Yes, according to the developer's later FAQ answers that players compiled: it captures every other unit destroyed in the same timing window, even if it is destroyed there too, such as by the Yin flagship or Exotrireme II; it never captures itself. That reversed an earlier answer, and some players still disagree. If the flagship was destroyed earlier, it isn't there to capture later losses.
Does Ceasefire stop Sardakk N'orr from committing ground forces from adjacent systems with their commander?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2021-04-01
- Clipper · Community · 2021-04-01
No — Ceasefire only prevents movement, and committing ground forces from an adjacent system with the commander is not movement.
Does the Muaat hero remove tokens like the Mirage or frontier tokens from the system it converts?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2021-04-01
- Clipper · Community · 2021-04-01
No — those tokens stay in the system.
Does the Creuss commander trigger if my ship just passes through a wormhole system?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2021-04-01
- Clipper · Community · 2021-04-01
Only if the ship actually moved through the wormhole, whether it started in the wormhole's system or entered it along the way. Passing through a system without using its wormhole doesn't count.
If a Vuil'raith dimensional tear is on Mallice, which systems does Dimensional Anchor affect?
One experienced player's reading; no official ruling or wider agreement.
- McBartsomeville · Community · 2025-05-13
Mallice is adjacent to every system with a matching wormhole, so ships in those systems are affected. Systems that are merely next to those wormhole systems are not.
Which exploration deck do I draw from when a planet has more than one trait?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2025-10-05
- Clipper · Community · 2021-08-29
- Clipper · Community · 2021-08-29
You choose one of the matching trait decks and draw a single card from it.
Can a mech deploy ability, like the Letnev mech's, take a mech from the board if none are left in reinforcements?
Players disagree; this is the better-supported reading, with no official ruling.
- IncrediSteve · Community · 2024-04-02
- McBartsomeville · Community · 2024-04-02disagrees
No — deploy abilities only place units from your reinforcements. If none are there, you can't use the deploy ability.
Can I play Counterstroke on a system I activate that already has my command token?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2022-01-05
- antmarcar1991 · Community · 2022-01-06
- jeffwagner · Community · 2022-01-05
No in practice — you can't normally activate a system that contains your own command token, so the trigger never comes up. Mahact's commander doesn't help either, since activating that way ends your turn at once with no after-activation abilities.
In the Codex alliance variant, does my ally become an active player when we both move into the same system?
One experienced player's reading; no official ruling or wider agreement.
- AgentDrake · Community · 2021-05-23
No — only the player who activated the system is the active player. The alliance rules simply let both players' units take part in combat and ability rolls.
What is the Codex Mahact 'Thrall of the Kings' card for?
One experienced player's reading; no official ruling or wider agreement.
- Ndjcirnc · Community · 2023-02-10
It is for the Codex alliance variant. The Mahact can't form normal alliances, so in that variant their alliance partner gives the Mahact one of their command tokens before the game starts instead.
How does Argent Flight's Raid Formation work, including against an opponent with no fighters?
Several experienced players agree; there is no official ruling on BGG.
- AgentDrake · Community · 2025-03-24
- hooliganj · Community · 2025-03-24
- IndyBart · Community · 2021-01-05
- ajmarshall · Community · 2021-04-15
- Sir Gerard · Community · 2026-01-10
- hooliganj · Community · 2026-01-10
Anti-Fighter Barrage hits beyond the number of enemy fighters damage that many enemy ships with Sustain Damage, chosen by the Argent player. It produces no hits and those ships don't use Sustain Damage, so it can't destroy anything and Direct Hit or Non-Euclidean Shielding don't come into it. Argent fire barrage even when the opponent has no fighters, making every hit excess.
Can relic fragments be traded, and in both directions?
Yes — relic fragments can be included in transactions by either side.
When a planet card is given to another player, by an exploration effect or the Hacan mech, does control go with it?
Several experienced players agree; there is no official ruling on BGG.
- sigmazero13 · Community · 2020-11-11
- Clipper · Community · 2020-11-11
- brian_r_j_j · Community · 2020-11-13
- AgentDrake · Community · 2020-12-05
- sigmazero13 · Community · 2020-12-06
Yes — control and holding the planet card go together, so the receiver controls the planet. Finding a planet like Mirage with just a ship there gives you its card and control; place a control token.
Is a legendary planet's ability card exhausted when I take the planet?
Several experienced players agree; there is no official ruling on BGG.
- AgentDrake · Community · 2020-12-05
- IncrediSteve · Community · 2021-01-30
- ajmarshall · Community · 2020-11-29
- sigmazero13 · Community · 2022-06-05
- LovingAngel · Community · 2020-12-22
- hooliganj · Community · 2020-12-22
The planet card arrives exhausted as usual, but the legendary ability card arrives ready, unless you take it from another player, in which case it keeps its state. It works independently of the planet: you can use it after spending the planet, effects that ready the planet don't ready it, and it isn't an attachment.
Does exploring a new planet happen before Integrated Economy?
Yes — exploring triggers when you take control, Integrated Economy after, so you explore first. Attachments can stack, so a planet may hold several.
Can Mentak pillage the Saar twice when Scavenge and Minister of Exploration both give trade goods for one planet?
One experienced player's reading; no official ruling or wider agreement.
- Redro123456 · Community · 2021-09-02
Probably — they trigger at different moments ('when' and 'after' gaining control), so each gain is a separate chance, if Saar still meets the threshold.
Do the Keleres control Custodia Vigilia as a legendary planet?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2022-05-07
- AgentDrake · Community · 2022-05-07
Yes — with IIHQ Modernization you gain its planet card and control it as a legendary planet, though it has no system tile.
Can Xxcha's Peace Accords take a planet with the Demilitarized Zone?
Yes — players agree Peace Accords can take a planet with the Demilitarized Zone.
Can I use only parts of Prophecy of Kings, such as just the new tiles or just the mechs?
Several experienced players agree; there is no official ruling on BGG.
- joespleen · Community · 2025-07-24
- IncrediSteve · Community · 2025-07-24
- zamoose · Community · 2025-07-24
- Ketos · Community · 2025-07-25
It isn't designed to be modular: the new factions, mechs, exploration and leaders lean on each other, and balance assumes it all. Adding small pieces like extra systems is a house rule.
With the Nomad hero active, can the Memoria pick up units from systems with Nomad command tokens?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2021-01-07
- zamoose · Community · 2021-01-07
- IncrediSteve · Community · 2021-01-07
- IncrediSteve · Community · 2022-08-14
Yes — the hero lets the flagship and the units it transports leave command-token systems, overriding the normal pickup ban. It doesn't let you produce in such a system.
When can the Titans use Awaken, and can Ceasefire or Nullification Field stop it?
Several experienced players agree; there is no official ruling on BGG.
- TreacleMiner · Community · 2021-04-15
- Wakke · Community · 2021-06-16
- hooliganj · Community · 2020-12-07
- IncrediSteve · Community · 2020-12-08
- hooliganj · Community · 2020-12-22
- Jasteni · Community · 2021-06-14disagrees
Right after activating a system that already held your sleeper token; a sleeper placed later in that activation, say by Scanlink exploration, can't be awakened then. Ceasefire only stops movement, so Awaken still works. Awaken and Nullification Field share the after-activation window, and the active Titans go first, so they can awaken before their turn is ended; the resulting ground combat still happens.
Can Titans explore a planet with Scanlink, Awaken its sleeper, and then use Terragenesis there?
Players disagree; this is the better-supported and more recent reading, with no official ruling.
Most likely not. Scanlink's 'when you activate' exploration comes before the 'after' window, so when you explore, the sleeper is still on the planet and Terragenesis can't trigger; later answers also say you can't place a sleeper with Terragenesis and Awaken it in the same action. Some 2020 readings allowed Scanlink, then Terragenesis, then Awaken. You can, however, Scanlink first and then Awaken before Xxcha's Nullification Field.
Is the Titans' Hel Titan a ground force, and does a sleeper stay when another player takes the planet?
Several experienced players agree; there is no official ruling on BGG.
- AgentDrake · Community · 2020-12-21
- AgentDrake · Community · 2020-12-20
- IncrediSteve · Community · 2020-12-23
- pedro2112 · Community · 2020-12-23
- DistantOasis · Community · 2020-12-21disagrees
The faction sheet makes the Hel Titan both a structure and a ground force, so it fights in ground combat. A sleeper token is only removed by Awaken or by the planet being destroyed, so it stays on a captured planet and can be awakened later.
Does the Vuil'raith Devour ability capture units destroyed by Space Cannon or Bombardment?
Several experienced players agree; there is no official ruling on BGG.
- Cacotopos · Community · 2021-05-18
- ajmarshall · Community · 2021-05-18
- Old_Man_gi · Community · 2021-05-18
- IncrediSteve · Community · 2021-05-18
No — those happen outside space and ground combat, so Devour doesn't see them; Anti-Fighter Barrage is part of combat and counts. The Vuil'raith flagship's wording is what covers destruction outside combat.
Do Vuil'raith ships roll for Cormund's gravity rift if their Dimensional Tear dock is there, and do two tears stack?
No roll: a system with more than one rift counts as one gravity rift, and Dimensional Tear says your ships don't roll for that system's rift. Two tears in one system don't stack the bonus either; it is simply a gravity rift, and counts as an anomaly for objectives.
Can Parley be played against ground forces committed by the Sardakk hero, even with no ships in space?
Players disagree; this is the better-supported reading, with no official ruling.
- Yoduh · Community · 2023-09-27
- Normative · Community · 2020-12-09
- jeffwagner · Community · 2020-12-06
- Kazadoom · Community · 2021-04-15
- Marnxx · Community · 2020-12-11disagrees
- sigmazero13 · Community · 2020-12-06disagrees
Yes, by the card text: Parley returns them to the space area, and with no capacity there they are destroyed. A compiled developer FAQ answer about the Yin hero supports Parley working without ships in space. Some groups think it unintended and house-rule it.
When does Dark Energy Tap explore frontier tokens, and is it mandatory?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2021-12-09
- IncrediSteve · Community · 2021-12-09
- Speedy_new · Community · 2021-08-29
- Clipper · Community · 2021-08-29
- Clipper · Community · 2021-08-29disagrees
After the tactical action ends, and only if your ships are still there, so it comes after Space Cannon Offense and production. It has no 'may', so it is mandatory.
Can the Mirage sit in a supernova, and can I activate a supernova, build there and leave?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2020-12-16
- sigmazero13 · Community · 2020-12-17
- Old_Man_gi · Community · 2020-12-16
- THLY · Community · 2020-12-16
- zamoose · Community · 2021-01-06
- ajmarshall · Community · 2021-04-15
Yes to all. Nothing stops a planet being in a supernova, and an exploration card can give you the Mirage there. A supernova can be activated; it only stops ships moving into or through it, so placing structures, producing, committing ground forces with the Sardakk commander, or entering with Nav Suite all work, and ships can always move out.
How does the Muaat hero's Nova Seed treat Muaat's own units and systems a war sun passes through?
It destroys only other players' units; Muaat's own stay, the war sun included, and can leave later, since nothing stops ships moving out of a supernova. It works only on the system the war sun moved into, never one it passed through.
Can I use Scanlink Drone Network or other activation abilities when activating a system with the Mahact commander?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- McBartsomeville · Community · 2023-10-04
- AgentDrake · Community · 2021-04-13
- ajmarshall · Community · 2021-04-14
- hooliganj · Community · 2021-04-14
- haydster7 · Community · 2023-06-22superseded
- PistonLoop · Community · 2021-04-14superseded
No — the commander ends your turn as part of resolving it, so no window for other abilities opens. The developer once tweeted otherwise, but the later compiled FAQ answers reversed that.
Can Mahact use the Arborec commander to build a mech when their system is activated, then use that mech to end the active player's turn?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2021-09-14
- IncrediSteve · Community · 2021-09-14
Generally accepted, yes: both abilities share the after-activation window, and the mech is on the board before the window closes.
How does Armed Forces Standardization affect Mahact holding other players' fleet tokens?
Several experienced players agree; there is no official ruling on BGG.
- sigmazero13 · Community · 2020-12-19
- artox · Community · 2020-12-20
It applies normally. Mahact chooses which tokens to remove, and other players' tokens removed go back to their owners' reinforcements.
Does an agenda resolved with the Xxcha hero that destroys an enemy flagship score Destroy Their Greatest Ship?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2020-12-13
- IncrediSteve · Community · 2020-12-13
- Denny599 · Community · 2020-12-22
Probably not — the agenda destroyed it, not your units or abilities, and only those count. No official ruling.
Does Psychoarchaeology give 1 trade good per planet or 1 total?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2021-01-05
- sigmazero13 · Community · 2021-01-05
- jeffwagner · Community · 2021-01-06
- THLY · Community · 2021-01-05disagrees
- pkitty · Community · 2021-05-13
1 per planet: each use exhausts one planet with a specialty for 1 trade good, and you can repeat it for each such planet. One player reads it as one trade good total.
For the Creuss mech's Icarus Drive, which system does 'this system' mean?
Several experienced players agree; there is no official ruling on BGG.
- halbower · Community · 2020-08-01
- Clipper · Community · 2020-08-01
- hooliganj · Community · 2020-08-01
- AgentDrake · Community · 2021-01-24
The system the mech was in, not necessarily the one another player activated; a unit's 'this system' always means its own system.
What does spending a command token 'from your reinforcements' mean?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2020-08-02
- LInsoDeTeh · Community · 2020-08-02
You need a token in reinforcements to pay; it isn't purged or moved to your sheet, so it normally just stays in reinforcements, or goes on the board if the effect says so.
Do several Muaat mechs each place infantry when Star Forge is used?
Several experienced players agree; there is no official ruling on BGG.
- SwissQueso · Community · 2020-08-02
- Hunamz · Community · 2020-08-03
Yes — each Muaat mech in or adjacent to the Star Forge system places its own infantry.
Can Direct Hit destroy a mech that uses Sustain Damage?
No — Direct Hit targets ships, and mechs are ground forces, which players report the designers intended. A ship repaired by the Empyrean flagship after sustaining can still be Direct Hit, since it did use Sustain Damage.
Are exploration cards public, and what happens when a deck runs out?
Several experienced players agree; there is no official ruling on BGG.
- hooliganj · Community · 2020-12-05
- AgentDrake · Community · 2020-12-05
- Vidyaraja · Community · 2020-11-29
- IncrediSteve · Community · 2021-04-15
They resolve openly; relic fragments are kept face up and attachments go on planets, while other cards are discarded. When a deck runs out, shuffle its discards into a new deck; used relic fragments are purged, so they never come back.
When does the Ion Storm flip, and does using a matching wormhole in the same system flip it?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
It flips whenever any player's ships move into or out of a system through it, so you can exit through it and later use the other side, even in one long move. With several wormhole routes, the moving player chooses which, if any, they use, which decides whether the Ion Storm flips, per a compiled developer answer.
When I find Mirage by exploring, do I control it and explore it too?
Several experienced players agree; there is no official ruling on BGG.
- Kazadoom · Community · 2021-04-14
- pkitty · Community · 2021-04-14
- zamoose · Community · 2022-02-20
- McBartsomeville · Community · 2022-02-20
Yes — take the planet card, place a control token, and explore it as a cultural planet, since you gained control of a planet nobody controlled.
How does Scanlink Drone Network work?
Several experienced players agree; there is no official ruling on BGG.
- pedro2112 · Community · 2020-12-04
- MollyMae · Community · 2021-10-21
- AgentDrake · Community · 2021-10-21
- ajmarshall · Community · 2021-04-19
- AgentDrake · Community · 2021-04-19
- Marcial · Community · 2021-09-23
Each time you activate a system, you may explore one planet there that already contains any of your units (infantry, mech, PDS or dock), even one explored before, so the same planets can be explored again and again. It won't explore planets your ships merely fly past.
Can mechs use tokens beyond the 4 plastic pieces?
No — tokens stand in only for infantry and fighters. Effects naming 'ground forces' include mechs; effects naming 'infantry' don't.
Can the Naalu commander look at the next agenda after the first is revealed?
Several experienced players agree; there is no official ruling on BGG.
- pkitty · Community · 2022-10-24
- Clipper · Community · 2022-10-24
- Old_Man_gi · Community · 2022-10-26
- IncrediSteve · Community · 2022-10-24disagrees
Yes — it works at any time, and once an agenda is revealed the next card is the top card. A FAQ answer quoted by a player says it can't peek at the card Covert Legislation draws or interrupt the Politics primary.
Can the Nekro Virus use the Prophet's Tears relic?
Several experienced players agree; there is no official ruling on BGG.
- Kazadoom · Community · 2021-02-22
- ajmarshall · Community · 2021-02-22
- sigmazero13 · Community · 2021-02-27
No — it triggers when you research a technology, which the Nekro never do, so it does nothing for them.
Can the Titans move Hel Titan PDS with Ghost Squad?
Several experienced players agree; there is no official ruling on BGG.
- Somnambulix · Community · 2022-01-07
- AgentDrake · Community · 2022-01-10
- thenintendovirus · Community · 2022-01-11
- Somnambulix · Community · 2022-01-08disagrees
Probably not — Hel Titans are structures as well as ground forces, and structures can't move or be transported. One player argues the card overrides that.
Can the Naalu use Foresight when the Mahact hero pushes ships into their system?
No — Benediction stops both players resolving abilities that move their ships.
Can abilities be used after an exploration card is revealed but before it resolves?
Several experienced players agree; there is no official ruling on BGG.
- antmarcar1991 · Community · 2021-08-30
- Clipper · Community · 2021-08-30
Only transactions, per a FAQ entry players quote; other abilities wait until the card's effect has resolved.
Can the Empyrean refuse Aetherpassage after agreeing to it in a deal?
Several experienced players agree; there is no official ruling on BGG.
- thenintendovirus · Community · 2021-02-03
- IncrediSteve · Community · 2021-02-03
Yes — it is optional and used at the moment the other player moves, and the deal isn't binding. Once that movement has happened, though, it can't be undone.
Does Naaz-Rokha's Distant Suns work with more than one mech on the planet?
Yes — 'contains 1 of your mechs' means at least one.
How do the Argent and L1Z1X heroes move ships, and can they reach the inactive Wormhole Nexus or invade?
Several experienced players agree; there is no official ruling on BGG.
- Old_Man_gi · Community · 2021-01-08
- IncrediSteve · Community · 2021-01-11
- pkitty · Community · 2021-03-13
- IncrediSteve · Community · 2022-04-28
- IncrediSteve · Community · 2020-12-09
- IncrediSteve · Community · 2025-08-05
Only by the hero's text: no path or move value, from any number of systems for the Argent hero, ignoring command tokens in the systems they leave. So the Argent hero can move ships into the Wormhole Nexus, which flips to its active side at the end of that action. The ships can carry units starting with them, but can't pick up along a path, and since it isn't a tactical action there's no invasion and nothing like Dark Energy Tap triggers.
How does the Mahact commander work?
Several experienced players agree; there is no official ruling on BGG.
- AgentDrake · Community · 2020-12-05
- Jake4Prezident · Community · 2020-12-05
- IncrediSteve · Community · 2021-07-30
You may activate a system that already holds your command token; you then remove both your tokens from it and your turn ends at once, so nothing else, production included, happens there that turn. In effect you spend a turn and a token to undo an earlier activation, so the system can be activated again later.
Do Nekro-copied Dimensional Tears affect the Vuil'raith, and do they count for the Vuil'raith hero?
One experienced player's reading; no official ruling or wider agreement.
- hooliganj · Community · 2020-12-15
Tears only hinder other players' units: Vuil'raith ignore their own, Nekro ignore Nekro's, but Vuil'raith are affected by Nekro tears. All tears on the board count for the Vuil'raith hero.
What are captured units good for, and how do Amalgamation and Riftmeld use them?
Several experienced players agree; there is no official ruling on BGG.
- ajmarshall · Community · 2022-06-01
- ajmarshall · Community · 2020-11-23
- IncrediSteve · Community · 2020-12-10
- hooliganj · Community · 2020-12-15
- IncrediSteve · Community · 2022-05-06
- zamoose · Community · 2025-03-05
Returning a captured unit of a type lets the Vuil'raith produce one unit of that type without paying (Amalgamation) or ignore prerequisites on its upgrade (Riftmeld). Each captured unit or token gives one unit, even fighters or infantry, and its printed cost still counts toward limits like Integrated Economy's. Any captured unit of the base type works, a Prototype War Sun counting as a war sun. Amalgamation is producing, so it can trigger Sling Relay.
What does the Vuil'raith flagship capture?
Several experienced players agree; there is no official ruling on BGG.
- Heiko Doubleu · Community · 2023-02-06
- IncrediSteve · Community · 2023-02-06
- IncrediSteve · Community · 2021-05-20
- Clipper · Community · 2021-04-18
- IncrediSteve · Community · 2021-04-18
- justbj · Community · 2021-04-18disagrees
Every other non-structure unit destroyed in its system, the Cabal's own included, even outside combat: Bombardment, Space Cannon, action cards, agendas. It never captures itself. If the Yin flagship blows up the system, the Cabal flagship is destroyed too but still captures everything else destroyed there, the Yin flagship included.
Does the Nomad's Cavalry note give my ship Anti-Fighter Barrage itself, or just the value?
One experienced player's reading; no official ruling or wider agreement.
- IncrediSteve · Community · 2023-10-23
The ability itself, for that space combat. Bombardment doesn't matter, since Cavalry ends with the space combat.
Can Become a Martyr be scored by losing a planet in another player's home system that I had taken?
One experienced player's reading; no official ruling or wider agreement.
- THLY · Community · 2021-10-03
Yes — it requires losing a planet in a home system, not your own.
How can a frontier token in a supernova ever be explored?
Several experienced players agree; there is no official ruling on BGG.
- AgentDrake · Community · 2020-12-31
- THLY · Community · 2021-01-01
Only through effects that explore without moving in or that let ships enter: Nav Suite, cards that explore an adjacent system, or Muaat (or a Nekro copying Muaat technology).
With Argent Flight's Zeal, what is the voting order?
Several experienced players agree; there is no official ruling on BGG.
- artox · Community · 2020-12-02
- IncrediSteve · Community · 2020-12-02
- Alkorahil · Community · 2020-12-02
- IncrediSteve · Community · 2023-11-14
- Clipper · Community · 2020-12-29
- Clipper · Community · 2021-08-16
Argent votes first, even as speaker, then voting resumes as normal from the speaker's left. Effects timed 'after the speaker votes', like Bribery, come right after the Argent vote when Argent is speaker.
Which side of the sleeper token is used, when does Terragenesis move one, and can Awaken work with no PDS left?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2022-01-21
- AgentDrake · Community · 2022-05-07
- IncrediSteve · Community · 2020-12-08
- StrangeBeacon · Community · 2025-10-20
- IncrediSteve · Community · 2022-07-02
- Old_Man_gi · Community · 2022-05-08
Use the plain sleeper side; the Titans-logo side marks ownership, and the hero and note attachment tokens aren't sleepers. A planet holds one sleeper; Awaken says 'one or more' because a system may have several planets. Replaced sleepers return and can be placed again, and Terragenesis moves one only once all yours are on the board. Awaken takes a PDS from reinforcements and isn't production, so with no PDS left you can't awaken.
Can the Titans deploy their mech instead of placing a PDS with Construction?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- hooliganj · Community · 2021-06-21
- ajmarshall · Community · 2021-06-23
Yes — Construction places PDS, so the Titans' deploy works there, even twice with the primary, but only where you could legally place a PDS and with one available.
Which trade good gains count for the Nomad agent Artuno?
Trade goods gained from the supply, from action cards, agendas, the Trade card or exploration. Converting commodities doesn't count, and as written neither do trade goods taken off strategy cards.
Does Argent's Aerie Hololattice stop ships with Light/Wave Deflector moving through?
Several experienced players agree; there is no official ruling on BGG.
- AgentDrake · Community · 2020-12-18
- Normative · Community · 2020-12-18
Yes — it says other players can't move through systems with Argent structures, and 'cannot' is absolute; Light/Wave Deflector only covers systems with enemy ships.
Can Coup d'Etat stop a primary ability resolved through the Winnu hero or Overrule?
Several experienced players agree; there is no official ruling on BGG.
- AgentDrake · Community · 2020-11-29
- Clipper · Community · 2020-11-29
- sigmazero13 · Community · 2020-11-29
- queequeg · Community · 2026-08-16
- nagysuti86 · Community · 2026-08-16
No — those are component actions that resolve a primary, not strategic actions, and Coup d'Etat only cancels strategic actions.
How do players reach the Wormhole Nexus, and can the Creuss agent help on the first turn?
Several experienced players agree; there is no official ruling on BGG.
- sigmazero13 · Community · 2021-12-15
- arcanite · Community · 2021-06-15
- IncrediSteve · Community · 2021-06-15
- zamoose · Community · 2020-12-07
- sigmazero13 · Community · 2020-12-07
- zamoose · Community · 2021-11-11
Usually through a gamma wormhole, such as one from exploration. You can activate the inactive Nexus, and the Creuss agent, used after activation and before movement, makes it adjacent to a delta wormhole system, so ships can move in that turn. Once a unit enters or someone gains Mallice, the Nexus flips.
How do the Yin and Naalu commanders' extra infantry and fighters work?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2020-12-02
- hooliganj · Community · 2020-12-02
- pedro2112 · Community · 2021-03-07
- IncrediSteve · Community · 2021-03-07
- IncrediSteve · Community · 2022-01-07
- Marcial · Community · 2022-01-07
When producing those units you may produce one extra for its cost, outside your Production limit, so 1 resource buys 3 infantry (Yin) or 3 fighters (Naalu), and it works even when producing just one.
What counts as being in my play area, for objectives about promissory notes?
One experienced player's reading; no official ruling or wider agreement.
- Pendragon22 · Community · 2021-02-04
- Pendragon22 · Community · 2021-02-04
Cards in your hand aren't; a note is in your play area only if it's placed there face up, as Alliance or Support for the Throne instruct.
Can units leave a system with my command token, Saar Floating Factories included, and does Dominus Orb ignore range?
Several experienced players agree; there is no official ruling on BGG.
- gpoirier · Community · 2026-03-15
- hooliganj · Community · 2026-03-15
- Somnambulix · Community · 2021-01-03
- cojami · Community · 2021-01-03
No unit can move out of a system holding your command token, Floating Factories included, unless an effect like Dominus Orb allows it. Dominus Orb doesn't extend range; the units still need to reach the active system.
Does Mahact's Genetic Recombination force a player to vote a certain way?
Several experienced players agree; there is no official ruling on BGG.
- McBartsomeville · Community · 2025-08-09
- Jake4Prezident · Community · 2020-11-25
No — the player votes freely, but if they don't cast at least 1 vote for Mahact's chosen outcome, they lose a fleet pool token.
Are Mirage, the destroyed-planet marker and Ion Storm tokens attachments?
One experienced player's reading; no official ruling or wider agreement.
- zamoose · Community · 2021-09-27
No — they modify systems or planets but aren't exploration attachments.
When an exploration card says to remove a ground force, where does it go?
One experienced player's reading; no official ruling or wider agreement.
- Clipper · Community · 2021-01-23
Back to reinforcements; it isn't destroyed, so Infantry II doesn't trigger.
Who goes first when the Muaat hero and Naalu Foresight both trigger as a war sun moves in?
Several experienced players agree; there is no official ruling on BGG.
- Heiko Doubleu · Community · 2022-01-05
- ajmarshall · Community · 2022-01-05
Muaat, as the active player, so the hero can destroy the Naalu ships before Foresight.
If several Crimson Legionnaires die at once, does each trigger separately?
Yes — each has its own trigger, resolved one after another.
Do 'during the action phase' agent abilities use my action, and does 'a player' include me?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2023-10-08
- Ndjcirnc · Community · 2023-06-01
- pkitty · Community · 2023-06-01
- AgentDrake · Community · 2022-06-12
No action is used; only 'Action:' abilities take your turn, so such agents can be used any time in that phase, often on others. 'A player' includes you; only 'another player' excludes you.
How does the Xxcha hero's ability to combine a planet's resources and influence work?
Several experienced players agree; there is no official ruling on BGG.
- ajmarshall · Community · 2022-05-18
- ajmarshall · Community · 2022-05-18
- Robo Fish · Community · 2022-05-18
- Vilard · Community · 2022-05-20
- Clipper · Community · 2022-05-20
- Clipper · Community · 2022-05-19superseded
When you exhaust a planet, it provides its combined value as resources or influence, so Mecatol Rex gives 7, even when exhausted for Uprising. It doesn't change printed values, so it doesn't raise a space dock's Production.
Are the Arborec and Hacan heroes limited by Production?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2021-04-26
- Cacotopos · Community · 2021-04-26
- AgentDrake · Community · 2021-01-10
- IncrediSteve · Community · 2021-01-10
The Arborec hero's units aren't produced with Production, so only resources limit them; infantry still come two per resource. The Hacan hero makes every unit you produce free, though fleet and unit limits still apply.
Do Creuss wormhole tokens count for unlocking the Creuss commander?
Several experienced players agree; there is no official ruling on BGG.
- Jagokok · Community · 2025-09-20
- sigmazero13 · Community · 2025-09-20
Yes — the tokens are wormholes for all purposes.
Can Anti-Fighter Barrage hit ground forces fighting via the Nekro flagship?
One experienced player's reading; no official ruling or wider agreement.
- Spinners71 · Community · 2021-11-17
No — barrage only hits fighters, and those ground forces are not fighters.
Can L1Z1X mechs bombard through Harrow?
Only when not in that ground combat: a mech fighting on a planet can't bombard it, but one on another planet in the system can.
Does the Naalu Omega mech stop opponents rolling Anti-Fighter Barrage at all?
Yes — other players can't use barrage in that system, so no dice are rolled and effects tied to it, like Argent's, don't trigger.
Does the Yin hero commit 3 infantry per planet or 3 in total?
3 in total, spread across one or more non-home planets, which are then invaded.
With the Vuil'raith agent, who gets the trade goods converted from the target's commodities?
Several experienced players agree; there is no official ruling on BGG.
- Spinners71 · Community · 2021-05-18
- IncrediSteve · Community · 2021-05-18
The targeted player keeps them as their own trade goods; the Cabal only capture the unit.
Is flipping Naaz-Rokha mechs to ships mandatory, and do they count against the fleet pool?
Several experienced players agree; there is no official ruling on BGG.
- matenason · Community · 2021-02-18
- IncrediSteve · Community · 2021-02-18
- McBartsomeville · Community · 2023-03-26
Flipping is mandatory, as nothing says 'may', but only for mechs already in the space area when combat starts; mechs on planets can't join. They still use capacity while in space, so they don't count against the fleet pool.
How does Insider Information interact with Covert Legislation?
Several experienced players agree; there is no official ruling on BGG.
- Geoff Watson · Community · 2020-12-07
- pedro2112 · Community · 2020-12-07
Covert Legislation is a 'when' effect that takes the next agenda first, so Insider Information, an 'after' effect, sees the card after that.
Can Self-Assembly Routines place a mech when Muaat produce in a supernova?
Several experienced players agree; there is no official ruling on BGG.
- Kazadoom · Community · 2020-12-02
- ajmarshall · Community · 2020-12-03
No — there is no planet in a supernova to place it on.
Can the Scepter of Emelpar help pay spend-token objectives?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2022-07-11
- Old_Man_gi · Community · 2022-07-11
Yes — a token spent from reinforcements through the Scepter in place of a strategy token counts, though the rest must still come from your pools.
Can the Trade primary or the Winnu hero choose zero other players for the free secondary?
Several experienced players agree; there is no official ruling on BGG.
- Spinners71 · Community · 2022-01-13
- sigmazero13 · Community · 2022-01-14
Yes — 'any number' includes zero, which lets you sell the favour.
With Diplomatic Pressure or the Mentak commander, who picks the promissory note handed over?
Several experienced players agree; there is no official ruling on BGG.
- TinTeardrop · Community · 2021-08-23
- Clipper · Community · 2021-08-23
- IncrediSteve · Community · 2021-12-19
- Kazadoom · Community · 2021-12-19
The target does; the other player can't look at or name a specific note.
Can the Nekro Virus play Reveal Prototype?
Several experienced players agree; there is no official ruling on BGG.
- TinTeardrop · Community · 2021-08-23
- Clipper · Community · 2021-08-23
- TinTeardrop · Community · 2021-08-24
Yes, gaining 3 command tokens instead of the technology, but only if there's a valid unit upgrade the card could research.
Does Sarween Tools reduce units produced with the Muaat agent?
One experienced player's reading; no official ruling or wider agreement.
- LovingAngel · Community · 2021-09-20
No — the agent lets a player produce without using a unit's Production ability, which Sarween needs.
Which ground forces can Ghost Squad move?
One experienced player's reading; no official ruling or wider agreement.
- TinTeardrop · Community · 2021-08-23
Only ground forces already on a planet you control in the active system, moved to one other planet you control in that same system — from one planet to one planet. It cannot bring ground forces in from other systems.
Can Reverse Engineer take an action card another player just played or had Sabotaged, or one I discarded?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2021-09-18
- TinTeardrop · Community · 2021-08-23
- Clipper · Community · 2021-08-23
It takes a component action card another player discards for any reason, so one they just played or one cancelled by Sabotage; that is its usual use. Not one you discarded yourself, since the card needs another player's discard.
What happens if Rout forces a retreat but there's no legal system, or the combat ends first?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2022-08-13
- Clipper · Community · 2021-04-02
- IncrediSteve · Community · 2021-04-02
- hooliganj · Community · 2021-04-02
- brettellmd · Community · 2022-04-18
Rout needs a legal destination; without one it does nothing and the ships keep fighting, they aren't destroyed. If the combat ends before the retreat, for example because Assault Cannon kills the last ship at the start, no retreat happens.
In a seven- or eight-player setup, does the speaker look at the extra tiles before placing them by Mecatol Rex?
No — they are placed unseen. The hyperlane maps, which need no extra tiles, are recommended instead.
If another player already holds my home planet when I gain the Shard of the Throne relic, do they take it?
No — it passes when a player gains control of a planet in your home system, and someone who already controls one isn't gaining control.
Can I decline to resolve an exploration card I drew?
One experienced player's reading; no official ruling or wider agreement.
- SeanSealey · Community · 2021-06-12
No — you must resolve it, even if it hurts you.
If I win the space combat and then invade the planet with an enemy dock in the same action, do I get my captured units back for blockading it?
Several experienced players agree; there is no official ruling on BGG.
- Kazadoom · Community · 2020-11-09
- AgentDrake · Community · 2020-11-09
- sigmazero13 · Community · 2020-11-12
- brettellmd · Community · 2020-11-09disagrees
Most players say yes: the dock is blockaded from the end of space combat until it is destroyed, so the units return even though you destroy it that action. Some think the timing of blockades needs an official ruling.
Do the Nomad use all three of their agents?
Several experienced players agree; there is no official ruling on BGG.
- mathmagician · Community · 2023-10-07
- hooliganj · Community · 2023-10-07
Yes — their faction ability The Company puts the two extra agents beside their faction sheet at setup.
Does the Nekro hero need prerequisites for the technology it gains?
Several experienced players agree; there is no official ruling on BGG.
- selcos21 · Community · 2023-06-01
- IncrediSteve · Community · 2023-06-01
No — gaining ignores prerequisites. The technology just has to match the colour of the chosen planet's specialty, so unit upgrades, having no colour, can't be taken.
Can the L1Z1X mech bombard before landing, and help with Harrow?
One experienced player's reading; no official ruling or wider agreement.
- IncrediSteve · Community · 2022-04-30
Yes — bombardment targets are chosen up front and a mech still in space can bombard before it lands. Ground combats are then fought one planet at a time, each with its own Harrow.
Does the Nekro commander draw an action card for the very technology that unlocks it?
Several experienced players agree; there is no official ruling on BGG.
- ajmarshall · Community · 2021-10-15
- pkitty · Community · 2021-10-15
No — unlock conditions are checked only after the current effect fully resolves, so the commander isn't unlocked until after that third technology.
For Betray a Friend, must I still hold the other player's note when I win the combat?
One experienced player's reading; no official ruling or wider agreement.
- Clipper · Community · 2021-09-01
No — you need it in your play area at the start of your tactical action; returning it during the action doesn't matter.
Do kills from X-89 or other effects count for Make an Example of Their World?
No — the units must be destroyed by Bombardment itself.
Can the Sardakk commander be used when defending?
Several experienced players agree; there is no official ruling on BGG.
- Cacotopos · Community · 2021-03-14
- Dulkal · Community · 2021-03-14
- Pendragon22 · Community · 2023-01-07
- IncrediSteve · Community · 2022-08-14
- Marcial · Community · 2022-08-14
No — only the active player commits ground forces, so it works only on Sardakk's own invasions: activate a system and commit up to 1 ground force from each of your planets in adjacent systems. Parley still works against those forces.
Can Imperial Arms Vault place a mech when I have none in reinforcements?
Several experienced players agree; there is no official ruling on BGG.
- Phoenix1147 · Community · 2021-01-31
- IncrediSteve · Community · 2021-01-31
No — it needs a mech from reinforcements, and you can't take one from the board for it; you can still draw an action card instead.
Which base game components does Prophecy of Kings replace?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2020-12-10
- DrBo6 · Community · 2020-12-10
The agenda cards listed at the start of the expansion rules, one of which is just a rewording, are swapped out. Players report the rest is new content; the box includes no errata'd technology cards or corrected Hyper Metabolism.
How do the Creuss place and move wormhole tokens with their promissory note and mech?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2021-08-15
- Clipper · Community · 2021-08-15
- Ender02 · Community · 2022-06-05
- PistonLoop · Community · 2021-11-28
- AgentDrake · Community · 2022-12-02
- Clipper · Community · 2022-12-02disagrees
Placing puts an off-board Creuss token on the board; moving relocates one already there. The note affects one token per use. Only the Creuss-assigned tokens can be used; the Creuss gamma token comes out through Wormhole Generator or the Creuss mech, which reacts to any system activation by putting a token in the mech's own system, as intended.
How many extra dice does the Argent Flight commander give?
Several experienced players agree; there is no official ruling on BGG.
- ajmarshall · Community · 2022-03-17
- sigmazero13 · Community · 2022-03-17
- THLY · Community · 2022-04-19
- IncrediSteve · Community · 2022-04-19
One per roll of a unit ability that rolls dice (Anti-Fighter Barrage, Space Cannon, Bombardment): one of the rolling units rolls one extra die, not one per unit.
How does exploration work?
Several experienced players agree; there is no official ruling on BGG.
- raptor666 · Community · 2021-08-23
- AgentDrake · Community · 2021-08-21
- IncrediSteve · Community · 2021-12-12
- TinTeardrop · Community · 2021-12-13
- Clipper · Community · 2021-12-05
- Gylthinel · Community · 2021-12-17
When you gain control of a planet nobody controlled, draw a card from the exploration deck matching its trait; this happens before 'after you gain control' effects like Integrated Economy or Pre-Fab Arcologies, which you then order as you like. Frontier tokens mark planetless systems still to be explored. Abilities like Naaz-Rokha's let you re-explore planets you hold.
What does Political Censure stop, and how is it removed?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2021-06-09
- IncrediSteve · Community · 2021-06-09
- McBartsomeville · Community · 2022-11-01
- IncrediSteve · Community · 2022-11-01
Only playing action cards; strategy cards are unaffected. The elected player can't discard it themselves; it leaves only through other effects, and then the restriction ends.
Can Stellar Converter target a planet in the same system as my Bombardment unit?
Several experienced players agree; there is no official ruling on BGG.
- Spinners71 · Community · 2021-05-18
- THLY · Community · 2021-05-19
Yes — a planet counts as adjacent to the system containing it.
Does the Naaz-Rokha flagship give one extra die total or one per mech?
Players disagree; this is the better-supported reading, with no official ruling.
- Nurgle84 · Community · 2021-02-11
- Kazadoom · Community · 2021-02-11
- Heiko Doubleu · Community · 2021-02-11disagrees
One per mech in its system.
Does Defy Space and Time need more than one unit in the Wormhole Nexus?
No — one unit is enough; the plural is just the card template.
Are my unplayed promissory notes in my hand, so effects that take notes from hands can get them?
Several experienced players agree; there is no official ruling on BGG.
- pedro2112 · Community · 2021-02-02
- pkitty · Community · 2021-02-03
- jeffwagner · Community · 2021-02-02
- AgentDrake · Community · 2021-08-12
Yes — they are your hand until placed face up in a play area, so they can be traded or taken by Diplomatic Pressure or the Naalu hero. With the Naalu hero, each player chooses which note to give.
Can a planet with the Demilitarized Zone attachment be invaded?
No — nobody can put units on it, so it can't be invaded. Effects that take control without placing units, such as Peace Accords, still can.
Can Genetic Recombination target a player who isn't voting, such as one who played a rider?
Several experienced players agree; there is no official ruling on BGG.
- THLY · Community · 2021-01-16
- IncrediSteve · Community · 2021-01-16
No — it triggers before a player casts votes, and a non-voter never reaches that point.
How do Raid Formation and Waylay interact?
Several experienced players agree; there is no official ruling on BGG.
- hooliganj · Community · 2020-12-15
- Blaze_Of_Glory · Community · 2020-12-15
- IncrediSteve · Community · 2020-12-15
- Geoff Watson · Community · 2020-12-15disagrees
Raid Formation works off the barrage roll without using up the hits. With Waylay, those hits still hit ships and the opponent assigns them normally, using Sustain Damage on undamaged ships if they like.
Can ships use the Wormhole Nexus's alpha and beta wormholes on the move that flips it?
Several experienced players agree; there is no official ruling on BGG.
- AgentDrake · Community · 2020-12-03
- IncrediSteve · Community · 2020-12-06
- AgentDrake · Community · 2020-12-05
No — it becomes active only at the end of the movement step, so you can't come in through the gamma wormhole and out through its alpha or beta in the same move. Once active, it is ordinary adjacency.
Can the Titans deploy their flagship for free, and with a PDS placed by Awaken that turn?
Several experienced players agree; there is no official ruling on BGG.
- Jake4Prezident · Community · 2020-11-29
- ElectroNugget · Community · 2020-11-30
- McBartsomeville · Community · 2023-04-29
- hooliganj · Community · 2023-05-01
- IncrediSteve · Community · 2021-10-03
- TinTeardrop · Community · 2021-10-03
It is free, swapping a PDS in a system you activate for the flagship, at the cost of the PDS. But the PDS must be there when you activate, so one placed by Awaken during that activation doesn't qualify. Their mech deploys only when a sleeper is awakened, in place of the PDS.
Is the Dyson Sphere attachment +2 resources and +1 influence or the reverse?
Several experienced players agree; there is no official ruling on BGG.
- ajmarshall · Community · 2020-11-16
- Parzival1996 · Community · 2020-11-16
+2 resources, +1 influence, as on the card; the rulebook picture shows the Lazax Survivors token by mistake.
If Winnu place a mech with Hope's End, can the Winnu mech ability then place a space dock?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2023-01-10
- ajmarshall · Community · 2022-01-15
- aegiscruiser · Community · 2017-12-03
No — Hope's End resolves at the end of your turn, after the window where the mech's ability triggers. Likewise, a dock placed by Winnu's Reclamation comes after the tactical action, too late to produce in it.
Does Dark Energy Tap let me retreat without a combat?
Several experienced players agree; there is no official ruling on BGG.
- HP12C_guy · Community · 2022-10-06
- Clipper · Community · 2022-10-06
- IncrediSteve · Community · 2020-12-13
No — its retreat part only lifts the usual destination requirement for retreats during space combat, and ground forces carried in a retreat can't land in the new system.
Can the Yin mech let Indoctrination replace an opponent's mech?
One experienced player's reading; no official ruling or wider agreement.
- Clipper · Community · 2021-11-10
No — Indoctrination still replaces an opponent's infantry; the mech only changes your replacing unit into a mech.
During the Xxcha hero, can a player holding the Xxcha alliance vote?
One experienced player's reading; no official ruling or wider agreement.
- IncrediSteve · Community · 2021-08-18
No — the hero resolves agendas outside the agenda phase as if Xxcha voted, so nobody else votes.
When the Mahact mech ends a player's turn, where does that player's command token go?
One experienced player's reading; no official ruling or wider agreement.
- Cacotopos · Community · 2021-07-18
They take it back into a pool of their choice on their command sheet.
Can the Naalu agent give a player a tactical action in a system they already activated?
One experienced player's reading; no official ruling or wider agreement.
- IncrediSteve · Community · 2023-06-04
No — it grants a tactical action, which must activate a system without that player's command token.
If Brother Milor places infantry during Colonial Redistribution, is there a ground combat?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2022-11-20
- ajmarshall · Community · 2022-11-20
No — the agenda destroys each ground force in the system, new ones included, and ground combat only happens during invasions or when an ability says so.
Does the Empyrean home system have a planet?
Several experienced players agree; there is no official ruling on BGG.
- guestid1250 · Community · 2022-07-22
- DarkThomy · Community · 2022-07-27
Yes — it is a nebula containing a home planet with normal resource and influence values.
Does the Winnu commander unlock if another player attacks Winnu ships at Mecatol Rex?
One experienced player's reading; no official ruling or wider agreement.
- MollyMae · Community · 2023-08-24
Yes — the condition is a combat in the Mecatol Rex system, which defending counts as.
Can the Mahact agent, or other effects used instead of spending a strategy token, work with an empty strategy pool?
Several experienced players agree; there is no official ruling on BGG.
- ajmarshall · Community · 2022-05-08
- ajmarshall · Community · 2022-05-09
- IncrediSteve · Community · 2022-09-03
- pedro2112 · Community · 2020-12-12
- Old_Man_gi · Community · 2020-12-12
Yes — they replace the token, so none is needed; the same goes for the Scepter of Emelpar and the Naaz-Rokha hero. With the Mahact agent on Construction's secondary, the active player's own token goes in the system, blocking them there.
With Riftmeld, must the captured unit belong to a player who has the upgrade?
Several experienced players agree; there is no official ruling on BGG.
- AgentDrake · Community · 2020-12-03
- Alwin · Community · 2020-12-03
- jeffwagner · Community · 2020-12-10
No — any captured unit of the matching type lets you ignore that upgrade's prerequisites.
Can the L1Z1X agent upgrade an infantry that moves into the active system?
One experienced player's reading; no official ruling or wider agreement.
- IncrediSteve · Community · 2021-01-26
No — it is used right after activation, before movement, so the unit must already be there.
How does Rearmament Agreement's Against outcome replace mechs?
Several experienced players agree; there is no official ruling on BGG.
- PropheticPlatypus · Community · 2022-10-31
- pkitty · Community · 2022-10-31
Each mech is replaced by one infantry where it stood, so four mechs become four infantry.
Does removing infantry for an exploration card trigger the Crimson Legionnaire?
One experienced player's reading; no official ruling or wider agreement.
- sigmazero13 · Community · 2023-06-12
No — removing a unit isn't destroying it, so 'after this unit is destroyed' abilities don't trigger.
If the Titans retreat into a system with a sleeper, does it awaken?
Several experienced players agree; there is no official ruling on BGG.
- McBartsomeville · Community · 2022-04-09
- IncrediSteve · Community · 2022-04-09
No — a retreat places a command token but doesn't activate the system.
Can Saar take Scavenge's trade good and spend it on their mech's deploy for the same planet?
One experienced player's reading; no official ruling or wider agreement.
- IncrediSteve · Community · 2022-01-30
Yes — both trigger after gaining control, so you choose the order.
How does the Arborec mech's deploy work with Mitosis?
One experienced player's reading; no official ruling or wider agreement.
- Kazadoom · Community · 2022-01-23
Instead of placing a new infantry, you swap one of your infantry on the board for a mech, ending with one fewer infantry and one more mech.
Can Transit Diodes move Titans Hel-Titans or ordinary PDS?
Several experienced players agree; there is no official ruling on BGG.
- Nagual84 · Community · 2021-06-17
- AgentDrake · Community · 2021-06-17
- surdreal · Community · 2021-05-20
- IncrediSteve · Community · 2021-05-20
- Ketos · Community · 2021-05-20disagrees
Hel-Titans yes: they are ground forces, and Transit Diodes removes and places units rather than transporting them. Ordinary PDS aren't ground forces, so no.
Is using my agent for another player a transaction, and must we be neighbors?
Several experienced players agree; there is no official ruling on BGG.
- sigmazero13 · Community · 2021-01-25
- AgentDrake · Community · 2021-01-25
- IncrediSteve · Community · 2022-05-07
- McBartsomeville · Community · 2022-05-07
- McBartsomeville · Community · 2022-10-07
No to both — it is just an ability; it can be part of a deal. Agents trigger on their own timing on anyone's turn and, unless worded 'you' or 'your', on anyone's units, though a few, like Artuno or the Mahact agent, only help their owner. The Yssaril agent copying the Hacan agent works alongside it.
Are mechs ground forces?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2021-07-25
- Clipper · Community · 2021-08-07
- Clipper · Community · 2021-08-08
- Clipper · Community · 2021-08-29
- AgentDrake · Community · 2021-01-08
Yes, for every purpose. They aren't infantry, so infantry-only rules, like the Arborec dock's ban on producing infantry, don't apply to them. Deploy places a unit without producing it, and you don't need one on the board already.
Can the Xxcha agent target a ready planet just to remove an infantry?
No — you can't ready a planet that is already ready, so the target must be exhausted for any of it to work.
Does the Keleres I.I.H.Q. Modernization make systems adjacent for movement?
One experienced player's reading; no official ruling or wider agreement.
- IncrediSteve · Community · 2022-12-07
No — it only makes players neighbors for transactions.
Does the Letnev commander give a trade good for each unit that uses Sustain Damage?
Several experienced players agree; there is no official ruling on BGG.
- McBartsomeville · Community · 2022-10-07
- Kazadoom · Community · 2022-10-10
- IncrediSteve · Community · 2021-09-04
Yes — each use triggers it separately.
Can the Jol-Nar commander reroll several kinds of unit ability rolls?
One experienced player's reading; no official ruling or wider agreement.
- IncrediSteve · Community · 2021-09-04
Yes — each Anti-Fighter Barrage, Bombardment or Space Cannon roll; Infantry II's revival roll isn't a unit ability roll.
Does the route my ships take matter for abilities that care where ships move?
One experienced player's reading; no official ruling or wider agreement.
- IncrediSteve · Community · 2021-09-05
No — beyond being legal and triggering gravity rifts, only where the ships end up matters.
If an exhausted technology returns to my deck and is researched again, is it exhausted?
Several experienced players agree; there is no official ruling on BGG.
- Kazadoom · Community · 2021-02-22
- sigmazero13 · Community · 2021-02-22
No — cards in the deck have no state, so it comes back ready.
When does a commander unlock?
Several experienced players agree; there is no official ruling on BGG.
- Spinners71 · Community · 2022-05-18
- IncrediSteve · Community · 2022-05-18
- ajmarshall · Community · 2021-10-15
- hehaheho · Community · 2021-07-26
As soon as its condition is met, mid-turn if need be, so a third mech arriving unlocks the Naaz-Rokha commander before combat even if it then dies. It is checked only after the current effect fully resolves, and Mahact's Imperia can only use another player's commander once it is unlocked.
Do the faction reference sheets give rules?
Several experienced players agree; there is no official ruling on BGG.
- AgentDrake · Community · 2022-05-09
- IncrediSteve · Community · 2022-05-09
- AgentDrake · Community · 2022-01-01
No — they are simplified summaries for choosing factions; the faction sheet text governs.
Under Checks and Balances, does a player who was given a card still pick one on their turn?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2022-02-07
- hooliganj · Community · 2022-02-07
Yes — you always pick and give away a card, so they still pick and pass one to an eligible player.
Is a Hel-Titan a valid target for effects on non-structures, and can it produce?
Several experienced players agree; there is no official ruling on BGG.
- thomsonbriand · Community · 2021-01-17
- AgentDrake · Community · 2021-01-17
- zamoose · Community · 2021-01-17
- Marcial · Community · 2021-09-23
- pkitty · Community · 2021-06-20
- AgentDrake · Community · 2021-06-20
It is a structure as well as a ground force, so the Vuil'raith vortex, which needs a non-structure, can't take it. It has Production, so it can produce in a tactical action's production step, though it can't be produced itself or used with Sling Relay, which needs a space dock.
With the Hacan commander, can I vote using only trade goods?
One experienced player's reading; no official ruling or wider agreement.
- IncrediSteve · Community · 2021-01-04
Yes — casting votes means exhausting any number of planets, zero included, so you can vote purely with trade goods spent through the commander.
Do the Vuil'raith roll for ordinary gravity rifts?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2020-12-11
- Nurgle84 · Community · 2021-02-13
- halbower · Community · 2020-11-28
- IncrediSteve · Community · 2021-02-08
Yes — their exemption covers only rifts created by their own Dimensional Tear docks. Those dock systems are anomalies, which counts for objectives like Making History. Their hero makes each enemy ship there roll as if leaving a rift, capturing it on a 1-3.
How do the Argent agent's placement and the Argent commander's unlock work?
Several experienced players agree; there is no official ruling on BGG.
- Geoff Watson · Community · 2020-12-03
- AgentDrake · Community · 2020-12-03
- Wh0isTh3D0ct0r · Community · 2020-12-04
- IncrediSteve · Community · 2020-12-03
The agent places ground forces only on planets that player controls, in the producing or adjacent systems, and since production follows invasion it never invades. For the commander, any mix of units with Anti-Fighter Barrage, Space Cannon or Bombardment counts toward 6, PDS included.
Does the tactical action from the Naalu agent cost a command token?
One experienced player's reading; no official ruling or wider agreement.
- hannibal555 · Community · 2022-08-12
No — no token is spent from the tactic pool.
Do ships moved by the L1Z1X hero out of a gravity rift still roll?
One experienced player's reading; no official ruling or wider agreement.
- Clipper · Community · 2021-08-10
Yes — ships leaving a rift roll as usual whatever moved them.
How many fighters does the Creuss commander give?
One per ship with capacity that moved through a wormhole, not per spare capacity, and you can only keep fighters you have capacity for once movement ends.
Can the Sardakk commander move ground forces onto planets I already control?
One experienced player's reading; no official ruling or wider agreement.
- hooliganj · Community · 2021-02-27
Yes — committing happens in the invasion step whether or not you own the planet.
Can Nomad mechs cancel hits with Quantum Manipulator when the Mentak flagship is present?
One experienced player's reading; no official ruling or wider agreement.
- IncrediSteve · Community · 2022-08-30
Yes — the Mentak flagship stops other players' ships using Sustain Damage, and a mech isn't a ship.
In the Alliance variant, do 'when you gain control' abilities trigger when my ally takes a planet?
Several experienced players agree; there is no official ruling on BGG.
- ajmarshall · Community · 2022-03-08
- Old_Man_gi · Community · 2021-11-07
No — allies' planets count as yours for abilities about planets you control, but only the player who takes a planet gains control of it. Joining an ally's combat means placing your own token there, so you would lose a Support for the Throne from the defender.
Is the trade good from Minister of Exploration mandatory?
One experienced player's reading; no official ruling or wider agreement.
- IncrediSteve · Community · 2022-01-16
Yes — the law has no 'may'.
Do the Crucible note's +1 and a gravity rift's +1 stack, and can I use several end-of-turn abilities?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2022-01-01
- Spinners71 · Community · 2022-01-01
- sigmazero13 · Community · 2020-12-03
Yes to both: movement bonuses stack, and you can resolve each end-of-turn ability at the end of your turn, even the turn you pass.
When can Psychoarchaeology be used?
Several experienced players agree; there is no official ruling on BGG.
- hooliganj · Community · 2020-12-07
- Kazadoom · Community · 2020-12-07
- pkitty · Community · 2021-06-29
- Old_Man_gi · Community · 2021-06-29disagrees
At any point in the action phase, not only on your turn, but never in the middle of resolving another player's ability; in a shared window players alternate from the active player.
Can the Titans awaken a sleeper on a planet another player has taken?
Several experienced players agree; there is no official ruling on BGG.
- LordChanter · Community · 2021-06-20
- zamoose · Community · 2021-06-21
- PistonLoop · Community · 2021-10-18
Yes — the sleeper stays until Awaken, and if enemy ground forces are there a ground combat follows, the winner keeping the planet. Awaken placing a PDS also counts as placing one for their mech's deploy.
As Hacan holding the Empyrean's Dark Pact, can I trigger it?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2021-04-23
- AgentDrake · Community · 2021-04-23
Yes — it checks your own maximum commodities, and you can give that many in one transaction; trades needn't be one-for-one.
What happens when an exploration card adds a technology specialty to a planet that already has one?
Several experienced players agree; there is no official ruling on BGG.
- HiveFleetWormwood · Community · 2021-04-01
- IncrediSteve · Community · 2021-04-01
- AgentDrake · Community · 2021-05-05
- IncrediSteve · Community · 2021-05-05
- zamoose · Community · 2020-12-06
- pedro2112 · Community · 2020-11-09
It gives +1 resource and +1 influence instead; a planet never has two specialties. Show only the half of the card that applies. An attached specialty counts as the planet's own and is used by exhausting the planet.
If an exploration card on a planet makes me remove my ground forces, do I keep the planet?
Several experienced players agree; there is no official ruling on BGG.
- zamoose · Community · 2020-12-21
- zamoose · Community · 2020-12-21
- Clipper · Community · 2021-10-20
- Viraux · Community · 2021-10-20
- IncrediSteve · Community · 2020-11-26
Yes — you explore after gaining control. Cards that remove infantry as a cost, like Volatile Fuel Source or Core Mine, are optional; skip the cost and you skip the benefit. Exploration cards like Demilitarized Zone always affect your own units.
If Xxcha take a neutral planet with Peace Accords, do they explore it?
One experienced player's reading; no official ruling or wider agreement.
- IncrediSteve · Community · 2021-12-12
Yes — you explore any planet you gain from no other player, however you took it.
Does Letnev's War Funding let me choose whether my opponent rerolls?
One experienced player's reading; no official ruling or wider agreement.
- Clipper · Community · 2021-09-08
Yes — the user decides whether the opponent rerolls all their dice. Like other combat rerolls it doesn't touch Anti-Fighter Barrage.
Does Yin Spinner Omega trigger off Integrated Economy?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2021-08-06
- Clipper · Community · 2019-09-01
Yes — unlike the original, it doesn't require a unit to use Production, so it triggers there as well as in the production step. The original gives a single infantry however many units produce. Sarween Tools still doesn't apply to Integrated Economy.
Do Naaz-Rokha mechs keep their extra dice under Articles of War?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2021-07-25
- PistonLoop · Community · 2022-10-30
Yes — extra dice are part of the combat value, not a printed ability.
Does the Yin hero work on planets with none of my infantry?
One experienced player's reading; no official ruling or wider agreement.
- Clipper · Community · 2021-05-10
No — 'any number of your infantry' here means at least one on the planet.
Does Mahact's Scepter of Dominion make the Mahact player place a token too?
One experienced player's reading; no official ruling or wider agreement.
- ajmarshall · Community · 2021-04-23
Yes — 'each other player' means everyone but the note's holder.
Does producing with Sling Relay trigger the Prophecy of Ixth drawback?
Several experienced players agree; there is no official ruling on BGG.
- ajmarshall · Community · 2021-03-07
- Kazadoom · Community · 2021-03-02
No — it only applies when you use a unit's Production ability, which Sling Relay doesn't. Sarween Tools works the same way: it needs a unit's Production, not just an effect that lets you produce.
Does the Mentak hero still give ships in a round where all Mentak ships die?
One experienced player's reading; no official ruling or wider agreement.
- Clipper · Community · 2021-02-16
Yes — the new ships are placed before the game checks whether combat is over, so if Mentak destroyed any enemy ships that round, the fight goes on.
Can other players play action cards during the Xxcha hero's action?
Several experienced players agree; there is no official ruling on BGG.
- ajmarshall · Community · 2020-11-23
- AgentDrake · Community · 2020-11-23
No — no one else may resolve abilities then, and action card effects are abilities.
Can the Nomad agent be used in combats the Nomad aren't in?
Yes — it has no participation requirement, so it can be used for, or sold to, others, as most agents can.
If a planet card is traded in the agenda phase, can the receiver vote with it?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2021-02-02
- sigmazero13 · Community · 2021-02-02
Trading the card transfers control, and it arrives exhausted, so it can't be passed on ready to vote again on the same agenda; its state matters little since planets ready afterwards.
When the Creuss hero swaps two system tiles, do the units move with them?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2021-01-18
- sigmazero13 · Community · 2021-01-18
Yes — units are on the tile's planets and space area, so they go with it.
Can the Vuil'raith produce a captured war sun without the War Sun technology?
No, by analogy with rulings on Mentak's Salvage Operations and Nekro war suns: you need the War Sun technology.
Does Naaz-Rokha's Supercharge give +1 to one unit or all?
Several experienced players agree; there is no official ruling on BGG.
- bleached_lizard · Community · 2020-12-01
- hooliganj · Community · 2020-12-01
All your units' combat rolls that round.
Does the Jol-Nar commander reroll Infantry II revival rolls?
One experienced player's reading; no official ruling or wider agreement.
- IncrediSteve · Community · 2021-09-22
- IncrediSteve · Community · 2021-09-04
No — that isn't a unit ability roll; it works on Anti-Fighter Barrage, Bombardment and Space Cannon.
Are relics public?
Several experienced players agree; there is no official ruling on BGG.
- AgentDrake · Community · 2020-12-28
- bleached_lizard · Community · 2020-08-06
- Clipper · Community · 2021-12-05
Yes — a gained relic goes face up in your play area. Purged cards, like used relic fragments or leaders, leave the game for good.
How does Galactic Crisis Pact work when Leadership is elected?
Every player may resolve Leadership's secondary; there's no token cost to waive, but spending influence for tokens still applies.
Is the Muaat supernova faction tile placed during setup?
One experienced player's reading; no official ruling or wider agreement.
- bleached_lizard · Community · 2020-11-29
No — it comes into play only through a Muaat leader ability.
Can the Mahact agent be used if the active player has no command token on the board?
One experienced player's reading; no official ruling or wider agreement.
- ajmarshall · Community · 2020-11-16
No — it removes a token from the board; there's no taking one from reinforcements instead.
Does the Wormhole Nexus count as on the edge of the board?
One experienced player's reading; no official ruling or wider agreement.
- IncrediSteve · Community · 2020-12-23
- IncrediSteve · Community · 2025-04-10
Yes — the Living Rules Reference says so, so units there count for edge objectives.
Which strategy cards can the Winnu and Naaz-Rokha heroes use, and do players pay for secondaries?
Several experienced players agree; there is no official ruling on BGG.
- Sartavos · Community · 2020-12-09
- IncrediSteve · Community · 2020-12-09
The Winnu hero can resolve the primary of any strategy card, even an unchosen one, and players who follow pay the secondary's normal costs. The Naaz-Rokha hero resolves the secondaries of up to two readied or unchosen cards, paying tokens from reinforcements, so Construction still places a token, but other costs like resources still apply.
Can the Titans play their own Terraform note, or reuse it after it's attached?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2020-12-18
- AgentDrake · Community · 2020-12-18
No — you can't play your own faction's note; the receiver attaches it to their own planet, and once attached it can't be played again or traded.
Why are Cormund and Everra printed in red?
One experienced player's reading; no official ruling or wider agreement.
- TerTer · Community · 2020-12-08
They are in anomalies: Everra in a nebula, Cormund in a gravity rift.
What can Bio-Stims ready?
One experienced player's reading; no official ruling or wider agreement.
- sigmazero13 · Community · 2020-11-23
At the end of your turn, one exhausted planet with a technology specialty, or one of your other exhausted technologies, never itself.
If Saar take several planets in one action, can they deploy a mech on each?
Several experienced players agree; there is no official ruling on BGG.
- AgentDrake · Community · 2021-10-10
- ajmarshall · Community · 2021-09-04
Yes — each planet gained is its own timing window.
Does Rout make the attacker leave with no combat rolls?
One experienced player's reading; no official ruling or wider agreement.
- Spinners71 · Community · 2021-11-07
No — it forces a retreat announcement; a round of combat is still rolled first.
With hyperlanes, which systems are on the edge of the board?
Several experienced players agree; there is no official ruling on BGG.
- McBartsomeville · Community · 2021-08-25
- AgentDrake · Community · 2021-01-24
- IncrediSteve · Community · 2021-01-24
- AgentDrake · Community · 2020-12-05
- Old_Man_gi · Community · 2025-04-10
- IncrediSteve · Community · 2025-04-10
A system is on the edge only if one of its sides touches neither another system nor a hyperlane tile, so tiles beside hyperlanes, and a system enclosed by them, aren't edge systems. The Wormhole Nexus does count as on the edge.
Does a system whose planet was destroyed by Stellar Converter count as having no planets for objectives?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2021-02-14
- DistantOasis · Community · 2021-02-14
Most likely yes — the destroyed planet can't be controlled or invaded, so players treat the system as planetless. No official ruling.
Does the no-adjacent-anomalies setup rule apply to anomaly home systems like the Empyrean nebula?
Players read the setup rule two ways and there is no official ruling; the answer gives both.
- toskk · Community · 2026-03-20
- Marcial · Community · 2026-03-21
- Hennu_TRM · Community · 2026-09-28
- AgentDrake · Community · 2023-06-01
- pkitty · Community · 2023-06-01
- IncrediSteve · Community · 2020-12-23
Disputed. One reading: home systems are on the board first, so their anomaly counts and you avoid putting anomalies next to them if possible. The other: home systems are placed before the surrounding tiles and don't block anything. Since the rule is only 'if possible', it rarely matters, and with a premade map you ignore it anyway.
When does the Council Keleres choose its starting technologies?
Several experienced players agree; there is no official ruling on BGG.
- Lowecore · Community · 2024-05-16
- IncrediSteve · Community · 2024-05-16
- ajmarshall · Community · 2022-05-04
- ajmarshall · Community · 2022-05-04
After every other faction has gathered its starting technologies, regardless of speaker order. Winnu and Argent Flight, who also choose theirs, go before the Keleres.
Which systems get frontier tokens, and do hyperlanes get them?
One experienced player's reading; no official ruling or wider agreement.
- TinTeardrop · Community · 2021-08-22
Every system with no planets gets one, the Creuss Gate included. Hyperlane tiles are not systems, so they don't.
With Prophecy of Kings, must I make sure alpha and beta wormholes are among the dealt tiles?
Several experienced players agree; there is no official ruling on BGG.
- halbower · Community · 2020-12-28
- IncrediSteve · Community · 2020-12-28
No — setup leaves the mix to chance, and the Wormhole Nexus still connects whatever wormholes appear.
How does the Xxcha hero resolve agendas, and can Xxcha play riders on them?
Resolve the hero's text in order: any law discard comes first, before you look at the agendas. Then you pick two of the drawn agendas and choose one outcome for each as if you had cast a single vote; nobody votes and you can't abstain, and the rest are discarded. No other player may use abilities during it, but the agendas are revealed, so Xxcha can play riders such as Imperial Rider on them. One player argues nothing is revealed.
After the Xxcha hero resolves agendas in the action phase, do exhausted planets stay exhausted, and does Public Execution carry over?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2021-09-13
- McBartsomeville · Community · 2021-09-13
- ajmarshall · Community · 2021-04-15
- Kazadoom · Community · 2021-04-15
Planets exhausted for any votes it triggers stay exhausted until readied normally. A player elected for Public Execution can still vote in the next agenda phase. Transactions during the hero's action still need neighbors, since it isn't the agenda phase. Agenda-phase secret objectives such as Drive the Debate can't be scored from it, since it isn't the agenda phase.
What does the Xxcha commander allow, and does it beat Political Secret or a rider?
Several experienced players agree; there is no official ruling on BGG.
- AgentDrake · Community · 2021-01-23
- pedro2112 · Community · 2021-01-23
- ajmarshall · Community · 2021-04-15
- Kazadoom · Community · 2021-04-15
- sigmazero13 · Community · 2021-03-22
- Kazadoom · Community · 2021-03-22
Each planet you exhaust to vote gives 1 extra vote, so even a 0-influence planet gives 1. It is a lasting ability that permits voting, and such abilities beat one-time effects, even ones that say 'cannot', so Xxcha can vote despite a rider or Political Secret. Through the Xxcha alliance even the Nekro can vote.
When is Deadly Plot played?
After all votes are cast and any tie is broken, and after the Legal Text cards, but before the outcome resolves, so before any dice for it are rolled. The agenda is discarded with no effect, and predictions can't pay out since that isn't an outcome.
Under Articles of War, do mechs lose Bombardment, Space Cannon and Production too?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2021-08-14
- McBartsomeville · Community · 2022-10-30
- PistonLoop · Community · 2022-10-30
Yes — mechs lose all their printed abilities except Sustain Damage. Their cost and combat stats stay, so they still fight, and a mech that rolls 2 dice still does.
How does Checks and Balances' Against outcome work?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2021-08-14
- StrangeBeacon · Community · 2026-03-28
- GhostTrail · Community · 2026-03-28
- hooliganj · Community · 2026-03-29
It replaces the readying at the end of the agenda phase for everyone, however they voted: each player readies only 3 exhausted planets, and planets that weren't exhausted stay ready. Under For, players must take whatever strategy card they are given.
Do Jol-Nar's Brilliant or the Jae Mir Kan trigger off a free secondary from Galactic Crisis Pact?
No — both need a command token spent on a secondary during a strategic action, and the agenda's free secondary spends no token outside a strategic action.
Does Nexus Sovereignty stop Space Cannon through the Wormhole Nexus?
One experienced player's reading; no official ruling or wider agreement.
- hooliganj · Community · 2022-09-05
No — it only turns off the nexus wormholes for moving units. Other wormhole adjacency, including for Space Cannon, still works.
When can a player make a prediction for the Nomad's Future Sight?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2020-12-12
- AgentDrake · Community · 2020-12-12
Only when an ability lets you predict, usually a rider. Predictions are declared after the agenda is revealed and before any votes, and predicting means you can't vote on that agenda.
Does Winnu's Acquiescence skip placing a token from Diplomacy, and can Mathis Mathinus use any strategy card?
One experienced player's reading; no official ruling or wider agreement.
- Clipper · Community · 2021-08-08
Acquiescence only waives the cost of following Winnu's own strategic actions; the Diplomacy primary still makes you place your token. Mathis Mathinus can resolve any of the eight strategy cards, regardless of who holds it or whether it is exhausted.
Can the Sardakk commander commit ground forces from adjacent systems without moving any ships in, even past enemy ships?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- IncrediSteve · Community · 2020-11-15
- jeffwagner · Community · 2020-11-15
- MollyMae · Community · 2020-11-16
- McBartsomeville · Community · 2022-04-22
- dmalus · Community · 2026-01-04
- Jake4Prezident · Community · 2020-11-15disagrees
Yes — the invasion step happens in every tactical action, so you can activate the system, move nothing, and commit ground forces from adjacent planets. If only enemy ships are there, no space combat occurs since you have no ships in it. A player reports the developer confirmed this in an AMA.
Can mechs use Sustain Damage against Bombardment?
Players disagree; this is the better-supported reading, with no official ruling.
- TinTeardrop · Community · 2021-01-08
- Phoenix44 · Community · 2021-01-08disagrees
Yes — Bombardment produces hits, so a mech can cancel one. Sustain Damage only fails against effects that destroy units outright.
Can a ship repaired by the Empyrean flagship use Sustain Damage again in the same round?
No — a unit can sustain only once per instance of the timing window, so it can't cancel more of that round's hits, but it can sustain again next round. Each repair is paid separately.
Does a Nomad mech on the Memoria flagship give it an extra Sustain Damage?
One experienced player's reading; no official ruling or wider agreement.
- McBartsomeville · Community · 2022-06-12
No — the mech uses its own Sustain Damage in space, and the flagship uses its own, so together they can cancel two hits. Direct Hit can't be played when the mech cancels a hit.
Can mechs carried in the space area use Space Cannon?
Yes — nothing limits Space Cannon to units on planets, so carried mechs, such as Xxcha mechs, can fire in the active system under the normal targeting rules.
Can Sol's commander place infantry if no ground combat happens?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2022-08-11
- gpoirier · Community · 2022-08-15
- IncrediSteve · Community · 2023-01-28
- Clipper · Community · 2023-01-28
No — it triggers at the start of ground combat, which only happens if a defending ground force (a mech counts; structures don't) survives to that point.
Does the Vuil'raith hero make a ship roll once per adjacent dimensional tear?
Several experienced players agree; there is no official ruling on BGG.
- isterbat · Community · 2024-04-21
- Marcial · Community · 2024-04-21
- IncrediSteve · Community · 2021-11-13
No — each non-fighter ship in or next to a dimensional tear rolls once, however many tears it touches. It concerns dimensional tears, not gravity rifts generally.
How does the Mentak hero work, and can it be escaped?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2021-03-22
- sigmazero13 · Community · 2025-05-11
- IncrediSteve · Community · 2025-05-11
- IncrediSteve · Community · 2020-12-17
- zamoose · Community · 2020-12-17
- IncrediSteve · Community · 2020-12-03
Purge it at the start of space combat; for the whole combat, each enemy ship destroyed gives you a matching ship, before a winner is decided, so the combat can continue even if your other ships died. The opponent can limit it by retreating, or escape before any losses with Skilled Retreat, which comes at the start of a combat round, after the hero.
Do abilities that trigger on ships moving into a system, or through a wormhole, count systems merely passed through?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- Cacotopos · Community · 2021-06-18
- Cacotopos · Community · 2021-02-03
- AgentDrake · Community · 2021-10-17
- Clipper · Community · 2021-10-17
- TinTeardrop · Community · 2021-10-18
- Clipper · Community · 2021-02-02disagrees
No — only the system where movement ends is 'moved into', so the Empyrean commander returns at most one token per move. Likewise, a ship only moves through a wormhole for the Creuss commander if it actually uses the wormhole's connection; crossing a wormhole system doesn't count.
Can ships stay in a supernova after entering it with an ability like Nav Suite?
One experienced player's reading; no official ruling or wider agreement.
- hooliganj · Community · 2024-10-15
Yes — a supernova only stops units entering; nothing forces them to leave afterwards.
Does the Saar agent stack with Gravity Drive?
Several experienced players agree; there is no official ruling on BGG.
- Clipper · Community · 2021-07-11
- iswearihaveajob · Community · 2021-07-11
Yes — it compares current move values, bonuses included, not printed ones, as a FAQ answer players quote confirms.
How does the Mahact hero's Benediction work?
Several experienced players agree; there is no official ruling on BGG.
- Finrodimus · Community · 2020-11-12
- AgentDrake · Community · 2020-11-12
- AgentDrake · Community · 2020-11-14
- Geoff Watson · Community · 2020-11-15
- ajmarshall · Community · 2021-04-15
- Zejety · Community · 2021-01-21
Pick one system, with your fleet or another player's, and move all units in its space area (fighters, ground forces in space and Saar docks included) into one adjacent system containing another player's ships, where they must fight. The moved ships' owner must be able to enter that system, so no pushing them into asteroid fields or supernovas they can't enter, and Creuss's alpha-beta adjacency can't be used. Neither side may retreat or use abilities that move ships, Skilled Retreat included.
How does the Nomad flagship Memoria's adjacency to mechs work?
Players disagree; this is the better-supported reading, with no official ruling.
- IncrediSteve · Community · 2020-12-21
- IncrediSteve · Community · 2020-12-21
- IncrediSteve · Community · 2020-12-21
- IncrediSteve · Community · 2025-12-31
- IncrediSteve · Community · 2022-05-20
- bigGameGeek · Community · 2020-12-21disagrees
The Memoria alone treats every system containing a Nomad mech as adjacent, mech on a planet or in space, so it can reach that system for 1 move however far away, though enemy ships there still block it. A system next to the mech costs 2. It is not a wormhole: other players' Space Cannon can't use it and it doesn't work in reverse. A mech being carried in the same move doesn't count, since ships move together, but the Memoria can pick up mechs from systems it enters.
How does Aerie Hololattice's Production 1 work?
Each planet with your structure gets Production 1 as if it were a unit, which raises the system's total and lets a planet with only a PDS produce. It isn't actually a unit, so effects that look for a unit with Production, such as the Arborec commander, don't see it, and it adds nothing to the Warfare secondary, which uses only one space dock's Production.
If one of my units is captured, can I still produce more of that type?
One experienced player's reading; no official ruling or wider agreement.
- HiveFleetWormwood · Community · 2021-03-03
Yes — the restriction applies only to the captured unit itself; other units of that type in reinforcements can be produced.
Can I unlock the Naalu commander partway through a production and use it for the rest?
Several experienced players agree; there is no official ruling on BGG.
- Marcial · Community · 2021-09-11
- KingOfStumps · Community · 2021-09-11
No — production is one step, so the unlock condition is only met after it finishes; use the commander from your next production.
Can the Argent Flight agent place ground forces on planets the player doesn't control?
Several experienced players agree; there is no official ruling on BGG.
- justbj · Community · 2023-03-25
- AgentDrake · Community · 2023-03-25
No — only on planets that player controls, in the producing system or adjacent systems. TI4 has planet control, not system control.
With Prophecy of Kings capture rules, when exactly is a space dock blockaded?
Several experienced players agree; there is no official ruling on BGG.
- farquat · Community · 2024-10-16
- SirIsegrimm · Community · 2024-10-17
Use the Rules Reference definition: a system with another player's ships and none of yours. Players point out it matters for captures, since during combat both sides have ships, so a dock isn't blockaded until combat ends.
Can I own both no-prerequisite technologies of one color from Prophecy of Kings, and do they count together?
Several experienced players agree; there is no official ruling on BGG.
- sigmazero13 · Community · 2020-08-02
- serdudds · Community · 2020-11-13
Yes — each counts as a technology of that color, so together they meet a two-of-that-color prerequisite.
Can Jol-Nar use their own agent when they research?
One experienced player's reading; no official ruling or wider agreement.
- IncrediSteve · Community · 2025-12-26
Yes — agents worded 'a player' can target yourself; only those saying 'another player' exclude you.
Can the Yin commander let me research Destroyer II when only Argent owns Strike Wing Alpha II?
Probably not — Strike Wing Alpha II is a different technology from Destroyer II, so nobody owns the one you want. One player argues by analogy with Nekro copying.
Twilight Imperium: Fourth Edition – Thunder's EdgeExpansion
Do I need to swap Ta Zern for Agnlan Oln when combining Thunder's Edge with Prophecy of Kings?
Several experienced players agree; there is no official ruling on BGG.
- AgentDrake · Community · 2025-11-04
- IncrediSteve · Community · 2025-11-04
Only for theme and clarity — the two cards work identically. Ta Zern now belongs to the Deepwrought, and the swap avoids two components sharing a name. Keeping Ta Zern changes nothing in play.
What counts as a unit ability for Agnlan Oln's reroll?
One experienced player's reading; no official ruling or wider agreement.
- Zangzabar · Community · 2025-11-11
An ability printed on a unit, structures included: Bombardment, Anti-Fighter Barrage, Space Cannon and the like. Rolls for those abilities can be rerolled.
Can Plane Splitter move an ingress token into a system in the Fracture?
Players disagree; this is the better-supported reading, with no official ruling.
- IncrediSteve · Community · 2025-11-11
- AgentDrake · Community · 2025-11-12
- Zangzabar · Community · 2025-11-11disagrees
By the rules as written, yes — the Fracture's hexes are separate systems, so one adjacent to your units qualifies. It only triggers at the start of your strategic actions, so this rarely matters. Some players read it as main-board only.
With Thunder's Edge, can the Council Keleres take any faction's hero at setup?
Several experienced players agree; there is no official ruling on BGG.
- AgentDrake · Community · 2026-01-09
- hooliganj · Community · 2026-01-09
No — you still choose one of the three Keleres heroes (Xxcha, Mentak or Argent Flight) whose faction isn't in play, take that faction's home system and tokens, and return the other two heroes.
Does Graviton Laser System apply to every Space Cannon die, including Ral Nel Linkships using a PDS's Space Cannon?
Several experienced players agree; there is no official ruling on BGG.
- Bluedevil310 · Community · 2026-04-29
- hooliganj · Community · 2026-04-29
Yes — it applies to the whole Space Cannon roll, borrowed dice included.
Can ships move from an egress back to an ingress to leave The Fracture?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- AgentDrake · Community · 2026-01-15
- ColtsFan76 · Community · 2026-01-15
- ColtsFan76 · Community · 2026-01-15
Yes — ingress and egress adjacency works both ways, like wormholes, except ingresses aren't adjacent to other ingresses and egresses aren't adjacent to other egresses. A player relays the developer confirming you can travel back out.
How many systems can the Argent Flight breakthrough affect?
One experienced player's reading; no official ruling or wider agreement.
- toskk · Community · 2025-11-28
When you activate a system containing only your units, you may place any number of command tokens from reinforcements in adjacent systems that contain only your units, then at the end of the action move ships among the active system and those systems.
Can a planet with two technology specialties satisfy both prerequisites at once?
Yes, under Thunder's Edge: exhausting a dual-specialty planet for one research can satisfy either or both of its specialties. It probably can't split them across two separate researches, since each research resolves on its own.
Is The Fracture 3 systems or 7, and is it adjacent to the galaxy it touches?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- GhostTrail · Community · 2025-10-28
- IncrediSteve · Community · 2025-10-29
- sigmazero13 · Community · 2025-11-06
- IncrediSteve · Community · 2026-01-10
- iswearihaveajob · Community · 2025-10-28
- Bluedevil310 · Community · 2025-10-29disagrees
Most players treat each hex as its own system, making 7, and players report the developer said the same. Fracture systems that touch are adjacent to each other but not to the galaxy tiles beside them; you reach it only through ingress and egress tokens. It can sit anywhere, and the galaxy tiles it touches stay edge systems, as the developer confirmed by email and reply, while every Fracture system also counts as on the edge.
Do empty Fracture systems get frontier tokens, and can wormholes go there?
Several experienced players agree; there is no official ruling on BGG.
- sigmazero13 · Community · 2025-11-06
- zamoose · Community · 2025-11-06
- zamoose · Community · 2025-10-23
- toskk · Community · 2025-10-23
Not at the start: frontier tokens are placed at setup, before the Fracture is in play, though the Empyrean hero can later put them on its empty systems. Wormholes can be placed there, since nothing forbids it.
Do I need Prophecy of Kings to play Thunder's Edge?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- AgentDrake · Community · 2025-08-05
- ChrisRemington · Community · 2025-08-05
- tommygunn2011 · Community · 2025-08-07
- AgentDrake · Community · 2025-09-04
- Bluedevil310 · Community · 2025-09-03disagrees
No — it only needs the base game and was playtested without PoK, according to a relayed designer answer, though it was balanced with PoK in mind and a few galactic events use PoK content. It includes its own Alliance cards, so effects like the Yin breakthrough work without PoK.
What are the +2 and +1 commodity tokens in Thunder's Edge for?
Several experienced players agree; there is no official ruling on BGG.
- AgentDrake · Community · 2025-10-29
- MisuVir · Community · 2025-10-29
- IncrediSteve · Community · 2025-10-29
The +2 token goes with the Dynamis Core relic, marked by the relic icon on its back; the four +1 tokens belong to the four space stations.
How does the Thunder's Edge Warfare strategy card work?
The primary lets you redistribute your tokens and perform a tactical action without placing a command token, even in a system that already holds yours or a Diplomacy token, so newly produced ships can move later that round; that system still counts as activated. You can move ships into an already-activated system that way, but not out of one. The secondary produces with all your units in your home system.
How does the Thunder's Edge Construction card differ?
Several experienced players agree; there is no official ruling on BGG.
- StrangeBeacon · Community · 2026-01-24
- GhostTrail · Community · 2026-05-08
- IncrediSteve · Community · 2026-05-10
- AgentDrake · Community · 2026-02-03
Its secondary spends a strategy token to place a structure on a planet you control, but the token is no longer placed in that system. It doesn't activate the system or care whether it was activated. Resolve the primary top to bottom.
Should I use the Thunder's Edge Warfare and Construction cards in base-only games?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2025-10-27
- gpoirier · Community · 2025-10-27
- SFRR · Community · 2025-10-27
Players agree they work fine there and are meant to replace the older versions, as PoK's Diplomacy did.
Can players look through the Mercenaries for Hire deck?
Several experienced players agree; there is no official ruling on BGG.
- GhostTrail · Community · 2025-12-26
- IncrediSteve · Community · 2025-12-26
- dmalus · Community · 2025-12-26
No — only the face-up top card is known; the event has the deck shuffled, so the order beneath stays hidden.
Can Scanlink explore a planet I only coexist on, letting the Titans place a sleeper there?
Players disagree; this is the better-supported reading, with no official ruling.
- gpoirier · Community · 2025-12-29
- IncrediSteve · Community · 2025-12-29
- IncrediSteve · Community · 2025-12-28disagrees
Yes — Scanlink needs your units on the planet, not control, and Terragenesis then works after that exploration.
With the Nekro breakthrough, can the flagship copy several other flagships, and what does it copy?
Several experienced players agree; there is no official ruling on BGG.
- StrangeBeacon · Community · 2025-11-07
- IncrediSteve · Community · 2025-11-07
- THLY · Community · 2025-11-09
- gpoirier · Community · 2026-04-23
- axibis · Community · 2026-04-23
- IncrediSteve · Community · 2026-04-24
There's no limit: whenever you'd gain another player's technology through a faction ability, you may put an Assimilator Z token on their faction sheet instead, and your flagship gains that flagship's text abilities. It isn't a technology, so the Nekro commander doesn't trigger. Unit abilities like Deploy, Space Cannon or Sustain Damage aren't text abilities, so copying flagships that rely on them gains nothing.
How does the Thunder's Edge expedition finish, and who gets the planet?
Several experienced players agree; there is no official ruling on BGG.
- StrangeBeacon · Community · 2025-11-22
- AgentDrake · Community · 2025-11-22
- StrangeBeacon · Community · 2026-03-12
- IncrediSteve · Community · 2025-11-15
- GhostTrail · Community · 2025-11-21
- nagysuti86 · Community · 2026-05-28
When the final slice is claimed, that player must flip Thunder's Edge and place it in a system with no planet (token planets like Mirage count), supernova or printed wormhole; other anomalies and wormhole tokens are fine. Whoever holds the most slices then puts that many of their infantry on it; on a tie, the player who claimed the last slice chooses among the tied players.
Can I use Thunder's Edge's ability as soon as I gain it, and does it give a breakthrough?
Several experienced players agree; there is no official ruling on BGG.
- GhostTrail · Community · 2025-12-13
- IncrediSteve · Community · 2026-09-30
- IncrediSteve · Community · 2026-03-12
Gained at the end of your turn, it arrives ready while you're still in that window, so you can use it at once. Its legendary card also grants a breakthrough to whoever takes it, a second route to yours.
How does coexistence work?
Several experienced players agree; there is no official ruling on BGG.
- hooliganj · Community · 2026-01-07
- ArcTheKnight · Community · 2025-10-31
- IncrediSteve · Community · 2026-02-21
- AgentDrake · Community · 2025-12-07
- StrangeBeacon · Community · 2026-03-13
- StrangeBeacon · Community · 2026-03-13
Only units with an effect granting it can coexist, mostly from the Deepwrought; Deepwrought may choose it whenever any player commits ground forces to the planet. The player whose units triggered it never controls the planet or takes its card, though they count as controlling it for objectives and neighbors; if they held it, they lose control. Coexisting structures still work but count as blockaded, and you can't build on a planet you only coexist on.
Can a coexisting player end coexistence and attack?
Several experienced players agree; there is no official ruling on BGG.
- StrangeBeacon · Community · 2026-03-13
- IncrediSteve · Community · 2025-11-01
- IncrediSteve · Community · 2025-11-03
- bhugbl · Community · 2026-03-13
- GhostTrail · Community · 2025-12-08
Yes — activate the system and commit the coexisting units against the planet; win the ground combat and you take control as normal. Planetary Shield on the planet protects everyone there from Bombardment, both players can fire Space Cannon Defense at an invader, and Support for the Throne still counts coexisting units.
If Wave Function Collapse purges a technology another player gained through Share Knowledge, does that player research a replacement?
Players disagree; this is the better-supported reading, with no official ruling.
- IncrediSteve · Community · 2025-11-23
- Dofhjort · Community · 2025-11-23
- ctgroh · Community · 2025-12-11
- gpoirier · Community · 2025-12-11
- jeffwagner · Community · 2025-11-23disagrees
- russe · Community · 2025-11-23disagrees
Most players say yes: the holder owns the gained technology, so it is purged and they research another, keeping it after the note returns. Some argue the borrower never owned it.
How do Firmament plot cards work?
Several experienced players agree; there is no official ruling on BGG.
- StrangeBeacon · Community · 2026-02-04
- IncrediSteve · Community · 2026-04-06
- GhostTrail · Community · 2026-03-05
- dmalus · Community · 2026-03-06
- jeffwagner · Community · 2025-11-22
- russe · Community · 2025-11-23
The Firmament choose which plot card to take. Another player's secret they score through Plots Within Plots is scored in the window it normally would. If that objective later becomes public, players disagree on whether the Firmament can score it again.
What tokens do the Council Keleres use, and how do they get Custodia Vigilia now?
Several experienced players agree; there is no official ruling on BGG.
- cedeo · Community · 2025-10-25
- Sarcasmorator · Community · 2025-10-27
- IncrediSteve · Community · 2025-10-25
- THLY · Community · 2025-10-31
- IncrediSteve · Community · 2025-11-01
They have none of their own; they use the components of the faction whose home system they take. In Thunder's Edge, Custodia Vigilia is their breakthrough, with values cut to 2/2.
How far can the ship moved by Rescue come from, and can it carry units?
Several experienced players agree; there is no official ruling on BGG.
- keypro42 · Community · 2026-01-08
- GhostTrail · Community · 2026-01-08
- Tobias_H · Community · 2026-01-09
From any distance, ignoring normal movement, but not from a system with your command token; leaving a gravity rift still means rolling. It can transport fighters and ground forces.
When do I gain and lose control of a space station?
Several experienced players agree; there is no official ruling on BGG.
- AgentDrake · Community · 2025-11-04
- IncrediSteve · Community · 2025-11-07
- Falkman · Community · 2025-11-05
- AgentDrake · Community · 2025-11-05
- GhostTrail · Community · 2026-02-26
- toskk · Community · 2025-11-04disagrees
You gain it as soon as you are the only player with ships in its system, which as written can be on arrival, before Space Cannon fires; some think it should wait until after combat. Like a planet, you keep it after leaving until another player becomes the only one with ships there. A space station isn't a planet, so controlling one doesn't stop you being eliminated.
Does the Crimson Rebellion's starting breakthrough trigger the Fracture roll?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- ArcTheKnight · Community · 2025-10-25
- zamoose · Community · 2025-10-26
- zamoose · Community · 2025-10-26
Yes — you gain starting components at setup, and the roll triggers whenever a player gains a breakthrough from any source; a player reports the developer saying the game can start with the Fracture in play.
How many agendas does the Thunder's Edge Inside Information look at?
One experienced player's reading; no official ruling or wider agreement.
- zamoose · Community · 2025-12-02
Three — the updated card looks at the top 3.
Can the Crimson Rebellion hero join a combat between two other players?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- sigmazero13 · Community · 2025-11-23
- IncrediSteve · Community · 2025-11-23
No — it is meant for combats you are part of; there are no rules for three-way combat, per players citing compiled developer answers.
Does Overrule exhaust the strategy card or let others follow?
One experienced player's reading; no official ruling or wider agreement.
- GhostTrail · Community · 2025-12-23
- GhostTrail · Community · 2025-12-23
No — it resolves only the primary; the card isn't exhausted, no one does the secondary, and its owner still has to take that strategic action. You can target your own ready card.
In Minor Factions mode, how are the Creuss or Crimson Rebellion home systems placed?
One experienced player's reading; no official ruling or wider agreement.
- AgentDrake · Community · 2025-11-26
They're reached through the Creuss Gate or The Sorrow, as page 16 of the Thunder's Edge rules describes, not placed on the map directly.
After a Crimson Rebellion swap, are the ships locked, and can moved units invade?
Several experienced players agree; there is no official ruling on BGG.
- AgentDrake · Community · 2025-11-04
- legosrock · Community · 2025-11-04
- isterbat · Community · 2026-02-02
- IncrediSteve · Community · 2026-02-02
Ships are never locked; only systems with your command token are, and tokens stay where they are, so a ship swapped out of an activated system can move again. A swap is a component action, not a tactical action, so there's no invasion unless the ability says so.
How do Crimson Rebellion breaches work?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2026-02-04
- Silixe · Community · 2026-02-05
- jeffwagner · Community · 2026-08-21
- hooliganj · Community · 2026-08-21
- SeanSealey · Community · 2026-10-06
- IncrediSteve · Community · 2026-02-21
A breach goes in the combat's system at the end of combat, whoever won, if one of your destroyers is in range then; it needn't have fought. At the end of the status phase a player with ships there may remove any or all active breaches, never inactive ones. Their mech can deploy through an active breach in the commit step, from reinforcements, even with no other units there, and needs no ground combat.
Does the Crimson Rebellion's inability to use wormholes remove wormhole adjacency?
Several experienced players agree and relay an emailed ruling from FFG; no official post on BGG.
- axibis · Community · 2026-10-15
- GhostTrail · Community · 2025-11-08
- sigmazero13 · Community · 2026-10-06
- cmsatpun · Community · 2025-12-16
- serdudds · Community · 2025-11-08disagrees
No — it only stops them moving through wormholes, as players relay from the designer. Adjacency still counts for neighbors, breach placement, Space Cannon and objectives.
Who places ingress tokens when Rapid Mobilization brings the Fracture in?
Several experienced players agree; there is no official ruling on BGG.
- Rakor · Community · 2026-08-20
- Old_Man_gi · Community · 2026-08-20
Treat it as coming in through another ability: the triggering player places ingress tokens in four different systems, each with a planet of a different specialty if able.
Can ships pass through the Fracture in one move, and do touching ingress systems stop being adjacent?
Several experienced players agree; there is no official ruling on BGG.
- Bluedevil310 · Community · 2025-10-24
- Clavos · Community · 2026-04-10
- ToothyWisdom · Community · 2026-04-10
- GhostTrail · Community · 2025-11-07
- sigmazero13 · Community · 2025-11-07
Yes, they can go in through one ingress and out via an egress to another ingress system if their move allows. The rule that ingresses aren't adjacent to each other only means the tokens don't link like wormholes; physically touching systems stay adjacent.
After forming the Naaz-Rokha Eidolon Maximum, can I rebuild my mechs?
One experienced player's reading; no official ruling or wider agreement.
- StrangeBeacon · Community · 2025-11-07
No — the card covers your mech, and no effect can place or produce your mechs afterwards.
Does an agenda voted through Keleres's Executive Order count as the agenda phase?
Several experienced players agree; there is no official ruling on BGG.
- toskk · Community · 2025-11-22
- IncrediSteve · Community · 2025-11-22
- IncrediSteve · Community · 2026-05-12
- GhostTrail · Community · 2026-05-12
No — phase steps like readying don't happen and agenda-phase secrets, Drive the Debate included, can't be scored, but 'when/after an agenda is revealed' effects still work. Argent's Zeal gives its extra votes but not the vote-first part.
Can a researching player use both the Deepwrought commander and alliance for -2?
Several experienced players agree; there is no official ruling on BGG.
- AgentDrake · Community · 2026-02-22
- narrativium · Community · 2026-02-24
Yes — each is a separate optional trigger, and the Deepwrought and their ally can't refuse.
Do neutral fighters need capacity, and do neutral units count for Total War?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2026-01-16
- AgentDrake · Community · 2025-11-23
- AgentDrake · Community · 2026-01-10
- ArcTheKnight · Community · 2026-01-11
Probably yes on capacity: neutral units lack Fighter II's text and the capacity rule still applies. They have no cost, so destroying them adds nothing for Total War. In Twilight's Fall no neutral units start on Mecatol Rex.
Can a unit with several instances of Sustain Damage cancel several hits?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2026-05-24
- sigmazero13 · Community · 2026-05-24
No — once damaged it can't sustain again, whichever instance it used.
If Limit Genome returns the token that activated a system, does the tactical action end?
One experienced player's reading; no official ruling or wider agreement.
- IncrediSteve · Community · 2026-04-03
No — the system stays active and the action continues; only effects that say so, like Nullification Field, end it.
How do the Last Bastion's spaceport card, Helios upgrade and Galvanize tokens work?
Several experienced players agree; there is no official ruling on BGG.
- ColtsFan76 · Community · 2026-03-07
- sigmazero13 · Community · 2026-03-07
- cedeo · Community · 2025-12-19
- GhostTrail · Community · 2025-12-19
- IncrediSteve · Community · 2025-10-27
- GhostTrail · Community · 2025-10-27
The +1/+2 spaceport card is a reminder attachment for the planet's higher resource value, +2 with the upgrade. Helios II replaces Helios I, so +2, not +3. Galvanize tokens are limited; with all 7 in use the effect fails until one is freed.
If I lose a Fracture relic planet, does the new controller get my relic?
Several experienced players agree; there is no official ruling on BGG.
- sigmazero13 · Community · 2026-01-08
- THLY · Community · 2026-01-08
No — you keep it; the relic came with taking the planet card from the deck.
With Subatomic Splicer, is each destroyed ship paid for separately, and can it rebuild a flagship?
Players disagree; this is the better-supported reading, with no official ruling.
- IncrediSteve · Community · 2025-12-29
- IncrediSteve · Community · 2025-11-14
- jeffwagner · Community · 2025-11-14
- Heiko Doubleu · Community · 2025-12-29disagrees
Each destroyed ship triggers it separately, and a destroyed flagship can be rebuilt since its piece is free again, unless the Vuil'raith captured it, which can happen to flagships too.
Does the Arborec commander work with a Letani in an Entropic Scar?
Several experienced players agree; there is no official ruling on BGG.
- sigmazero13 · Community · 2025-11-23
- AgentDrake · Community · 2025-11-23
Yes — the scar stops unit abilities being used but doesn't remove them, and the commander is a text ability that only needs a unit with Production.
Does the Mahact flagship's 'end of the Edict Phase' mean the Benedictions Phase in Twilight's Fall?
One experienced player's reading; no official ruling or wider agreement.
- IncrediSteve · Community · 2025-11-02
Most likely — the rules only describe a Benedictions Phase, so 'Edict Phase' looks like a leftover name.
Are breakthroughs technologies, and do their passive abilities work while exhausted?
Several experienced players agree; there is no official ruling on BGG.
- StrangeBeacon · Community · 2026-06-03
- sigmazero13 · Community · 2026-01-07
- GhostTrail · Community · 2026-01-07
- StrangeBeacon · Community · 2026-01-06
They aren't technologies, so a breakthrough like Mentak's Corsair doesn't count as a unit upgrade or for anything that cares about technologies. Their passive abilities keep working while exhausted. Synergy lets a technology of one linked colour count as the other for colour objectives.
In the Alliance variant, do 'another player' abilities trigger on my ally?
No — an ally counts as 'any player' but not 'another player', so effects like the Empyrean alliance or Naalu Foresight don't trigger on them, while 'any player' effects still do.
Are there quick answers for Watchtower, Reflect, Garbozia's legendary ability, Brilliance, Ignis and Ral Nel Linkships?
Several experienced players agree; there is no official ruling on BGG.
- IncrediSteve · Community · 2026-08-26
- hooliganj · Community · 2026-02-22
- GhostTrail · Community · 2026-05-01
- StrangeBeacon · Community · 2026-03-16
- StrangeBeacon · Community · 2025-11-29
- GhostTrail · Community · 2025-12-22
The Watchtower is one system, so one anomaly. Reflect lets you choose per trade good, in sequence. Garbozia's legendary ability lets you choose which discarded action card to take. Brilliance's chosen player gains their own breakthrough. Ignis places a token without activating, so Nullification Field can't answer it. Each Linkship II rolls one Space Cannon die however many PDS share its space.
In Twilight's Fall premade-map setup, who picks a home system first?
One experienced player's reading; no official ruling or wider agreement.
- IncrediSteve · Community · 2025-11-03
The speaker picks last; the others pick from the lowest initiative number among non-speakers.
Are hyperlanes required in a four-player game with Thunder's Edge?
Several experienced players agree; there is no official ruling on BGG.
- Old_Man_gi · Community · 2025-10-31
- sigmazero13 · Community · 2025-10-31
No — the four-player hyperlane layout is a setup variation for using both expansions, not a requirement.