Underwater Cities
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Must you upgrade the structure you build on the build-and-upgrade slot?
The designer answered this directly in 2019.
- sucd · Designer · 2019-01-17
- Underwater Cities rulebook · Rulebook · ACTION SLOTS AND CARD EFFECTS
- gwill2112 · Community · 2022-04-08
- DC680 · Community · 2022-03-07
- UtterMarcus · Community · 2018-12-03
- UtterMarcus · Community · 2019-05-22
- timidus · Community · 2019-01-15
Yes. That slot is one action: you build a structure at its usual cost and immediately pay 1 science to upgrade that same structure. You cannot build without upgrading, upgrade without building, or upgrade a different structure. The "use one of your action cards" part of the slot is separate and optional.