
Treason is a 3-16 player party shooter of teamwork and betrayal, set among Italian mobsters. Use proximity voice chat, unique abilities/gadgets, and strategy to prove your innocence or deceive others.
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At the start of each round, players must uncover the Don's killer by finding Clues. Delivering enough Clues to the Clue Processing Unit reveals a Traitor. Traitors conspire against the Innocents, Detective, and Doctor. Traitors win by eliminating all Innocents, while Innocents win by identifying and eliminating the Traitors.



At the start of each round, the Don's body appears. When a player discovers it, Clues spawn across the map for players to collect. Delivering enough Clues to the C.P.U. reveals a Traitor. Beware: Traitors can sabotage the C.P.U. by shutting off its power supply!

Join our Discord community!
Treason is a hobby project with a small but active and friendly community. Use the Discord server to look for players, if the game servers are empty.
90% positive reviews all-time · 10 peak players in the last 30 days.
Klaus Veen's Treason peaked at 10 concurrent players on Steam in the last 30 days (highest on Jul 19, 2026). The player chart on this page updates daily.
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