Two Rooms and a Boom, the large-scale social deduction party game
Two Rooms and a Boom is a social deduction party game, designed by Alan Gerding and Sean McCoy (also the artist) and published by Tuesday Knight Games. Its distinctive feature: it is played with 6 to 30 players, physically split across two separate rooms. Each player receives a secret role belonging to the Blue Team (protecting the President) or the Red Team (whose Bomber is trying to reach the President). Unlike games such as Werewolf, there is no player elimination and no moderator: everyone plays until the very end.
How to play Two Rooms and a Boom
The game is played in real time, over several timed rounds. In each room, players elect a leader who selects "hostages" to be traded with the other room at the end of each round. Deduction happens through conversation and private "card shares," where two players can choose to show each other their card (or just its colour) to build trust — or to lie. Dozens of advanced roles (Doctor, Engineer, Spy…) add depth once the basics are mastered.
End of game and victory conditions of Two Rooms and a Boom
At the end of the final round, the positions of the President and the Bomber are revealed. If they are both in the same room, the Red Team wins. If they are in different rooms, the Blue Team wins. All the tension of the game comes from this uncertainty: not knowing who is on your team, or what is happening in the other room.