Age of Steam
How many dice do I roll in Goods Growth, and is it one roll or two?
The designer confirmed the light-then-dark two-roll process and the rulebook states it.
One die per player counted at the start of the game, rolled separately for each side: first for the light section (left), resolve it, then roll again for the dark section (right). The player count does not change with eliminations. Dice pointing to cities not on the map do nothing.