Falling Sky: Gallic Revolt Against Caesar FALLING SKY takes 1 to 4 players into the military actions and complex politics of Roman-occupied but not-yet-conquered Gaul. Leveraging GMTs popular COIN Series system to integrate historical events with wide-ranging strategic options across the gameboard, FALLING SKY provides accessible and deep historical gaming of war, politics, and diplomacy. A full solitaire system enables solo players to test their skill against an array of game-run factions, each unique.