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Klaus Veen's Treason

Also known as Klaus Veen's Treason, klaus veens treason, klaus-veens-treason

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.

Last update
29 May 2026
Players now
1
Original sources
1
Latest update
Patch notes

v17.12.2025Treason Update #11 Hotfix 1 (17.12.2025)

Gameplay Fixed a bug with Finger Gun push functionality which caused velocity to apply to non-player entities, which would in turn break doors off of hingers Fixed a bug when you could switch between two different Gadge…

5 changes1 numericFix
Latest updates

Update history

Browse past updates and patch notes for this game.

20updates

Gallery

In-game media

Achievements

Community progression

Top picks from 27 Steam achievements, sorted by player unlock rates.

  • My first winSurvive and win a round as an Innocent30.6%
  • What goes around comes aroundHave no karma change in 5 rounds24.7%
  • So this is TreasonSurvive and win a round as a Traitor23.8%
  • A close oneSurvive a Remington headshot15.5%
  • Can I play, daddy?Reach rank 212.9%
  • OopsResuscitate a Traitor as Doctor3.0%