Don’t Mess with Cthulhu is a deceptively simple social deduction game with secret identities. Players are either Investigators trying to keep Cthulhu from waking and controlling the world, or Cultists that want to bring the world to a disturbing end. The game takes place over four rounds. The Investigators must uncover all the Elder Signs to win; the Cultists win when Cthulhu is revealed or if the game ends before all the Elder Signs are discovered.
Deluxe Edition includes two optional modules: 1) Necronomicon and 2) Objects of Power.