Klaus Veen's Treason

Tomorrow Software · Klaus Veen

Released
Jan 31, 2023
Platforms
Last updated
Wishlist on SteamAdd it on the Steam store page. Opens in a new tab.

Updates & announcements

20 posts
  1. Developer post

    Treason 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 Gadget weapons and end up with no weapon in hands after using the

  2. GamingOnLinux

    Free 3-16 player party shooter of teamwork and betrayal, Klaus Veen's Treason added Linux support

    Ready for the holiday period, Klaus Veen's Treason is a fun looking 3-16 player party shooter of teamwork and betrayal that now has Native Linux support. Read the full article here:

  3. Developer post

    Treason Update #11 (12.12.2025)

    The final update of this year. Welcome to Treason Update #11! Without further ado, let's get right into it. The highlight of this update is native Linux support. We have ported Treason to Linux, which was quite more complicated than just hitting "compile" on the source code. Be w

  4. Developer post

    Announcing Treason on Linux

    Hello! We've been working behind the scenes on getting Treason to work natively on Linux, and we would like to get your help in it. We've pushed a brand new beta branch called linux_testing for both game client and dedicated server and we would like you to test it out before we c

  5. Developer post

    Treason Update #10 Hotfix 1 (28.08.2025)

    Stability Temporary (or not) workaround for low model quality causing player models to render inadequate decals and crash the game (disabled LODs entirely for now; probably not going to come back any time soon, unfortunately) Please let us know if you still experience graphical g

  6. Developer post

    Treason Update #10 (22.08.2025)

    Hello and welcome to our latest and greatest update for Treason! This has been the longest update to make, but we have a lot of things to share with you! We hope you like it. We're starting off by introducing global Steam Leaderboards . This is launching as an experiment, so we'v

  7. Developer post

    Treason Update #9 Hotfix 1 (18.06.2025)

    Stability Fixed server crash when rapidly disconnecting and re-joining the same server Fixed an exploit related to player packet loss We are currently working on a pretty big update and it's coming very soon! Thank you for sticking with us!

  8. Developer post

    Treason Soundtrack Release Party

    This event is all about bringing new and veteran players together to experience the thrill of Treason—the mafia-themed game where wit, intuition, and deception rule the day. Whether you’re a seasoned strategist or just starting out, you’ll have the chance to join in on intense ro

  9. Developer post

    Treason Update #9 (18.12.2024)

    For the final time this year, welcome back to the new update! We've got something special for you this time... The biggest addition of this update is introduction of friend lobbies! You can now play with your friends without occupying a public server with just one press of a butt

  10. Developer post

    Treason Update #8 (31.10.2024)

    Welcome to our longest update in the making thus far! We've continued to expand on the gameplay in many different ways, so we hope it was worth the wait. Player classes Please welcome some new faces to our ranks: the Light and Heavy classes! With this update, you now get to choos

  11. Developer post

    Update #8 Release Date

    Welcome back, mobsters. We have some special news for you: update #8 will release on October 31st, 2024 ! Watch out for new faces within our ranks...

  12. Developer post

    Treason Update #7 Hotfix 2 (03.04.2024)

    Gameplay Changed default power supply toggle time to 2 seconds ( t_cpu_powersupply_toggle_time ) Replaced Troy pseudo name with Rolo UI Potentially increased fidelity of HUD progress bar Maps Fixed some missing polygons Updated Don spawn positions Updated Zombie Don syring spawn

  13. Developer post

    Treason Update #7 Hotfix 1 (28.03.2024)

    Stability Fixed a rare server crash when a player was in pre-death state and the round restarted during that period Fixed very rare instances of kick vote permanently preventing a player from re-joining, if a level change has occured shortly after a kick vote Gameplay Fixed Don g

  14. Developer post

    Treason Update #7 (24.03.2024)

    We're back with another update! This time, we've got quite some interesting stuff for you to look at. Please share your feedback with us! Some of you might've already noticed it on our Steam Store page, but we added Steam Achievements ! With that, we've also added some new Steam

  15. Developer post

    Treason Update #6 (31.01.2024)

    First update of the year and today the game turns one year old! Please share your feedback with us! We got a brand new gun in stock today for you! Remington Model 81 is a powerful 5-round rifle, capable of quickly disposing of those pesky Traitors. We've added a brand new Shield

  16. Developer post

    Klaus’ B-Day Treason Bash

    Thanks for being a part of our little Treason community! Best wishes, Klaus Veen

  17. Developer post

    Treason's Winter Season

    Celebrate the Christmess season in Treason. Veterans and newcomers alike come together for a festive night of deception. Whether you're an innocent trying to sniff out the traitors, a traitor trying to take down the innocents, the detective trying to solve the case or the doctor

  18. Developer post

    Treason Update #5 (21.12.2023)

    We are back with the last update for this year! Please share your feedback with us! First thing we introduced is Steam Rich Presence. Now whenever you see your friend playing Treason, you'll see what map they are playing and how many players they have on their server while also b

  19. Developer post

    Vote For Treason!

    We'd like to invite you to nominate Treason for the upcoming Steam Awards 2023. Thanks for sticking with us, Klaus

  20. Developer post

    Treason Froit Noit!

    Attention goons of all ranks and experience levels. Hope y'all like the update! :) Join us for a special Treason Fright Night, where veterans and newcomers unite for a spectacular evening of betrayals and shenanigans. Have fun! Klaus