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Treason

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App ID 1786950
App Type Game
Store Name Klaus Veen's Treason
Developer
Publisher Klaus Veen
Supported Systems Windows
Technologies Source Engine
Last Changenumber 29638333
Last Record Update 18 June 2025 – 22:38:46 UTC ()
Release Date 31 January 2023 – 16:12:20 UTC ()
😎 85.29%
1k reviews
7
In-Game

Treason is a 3-16 player party shooter of teamwork and betrayal, set among Italian mobsters. Use proximity voice chat, unique abilities, and strategy to prove your innocence or deceive others. Update 9: Set up your own lobby and play with your friends!

Additional Information

This game is excluded from Steam Family Sharing because: Free Game

Developer Tomorrow Software
community_visible_stats Yes
ReleaseState released
Publisher Klaus Veen
IsFreeApp Yes
Exclude from family sharing (exfgls) 3 (Free Game)
Store Release Date 31 January 2023 – 16:12:20 UTC ()
osarch empty string
community_hub_visible Yes
Social Media https://discord.gg/fGvfTyYGge
Primary Genre Free to Play (37)
Store Genres Action (1), Casual (4), Indie (23), RPG (3), Strategy (2), Free to Play (37)
Steam Release Date 31 January 2023 – 16:12:20 UTC ()
Store Asset Modification Time 24 April 2025 – 11:27:59 UTC () (1745494079)
library_assets
library_capsuleen
library_heroen
library_hero_bluren
library_logoen
library_headeren
logo_position ↴
pinned_positionUpperCenter
width_pct56.90052349695219
height_pct73.78294941819044
osextended empty string
Is free on the store? Yes
review_score 8
review_percentage 89
Detected Technologies (?) Source Engine, Autodesk_FBX SDK, Bink_Video SDK, Miles_Sound_System SDK, OpenVR SDK, SDL SDK
Steam Deck Compatibility
  • Steam Deck:
  • Some functionality is not accessible when using the default controller configuration, requiring use of the touchscreen or virtual keyboard, or a community configuration
  • This game sometimes shows mouse, keyboard, or non-Steam-Deck controller icons
  • Entering some text requires manually invoking the on-screen keyboard
  • This game supports Steam Deck's native display resolution but does not set it by default and may require you to configure the display resolution manually
  • In-game interface text is legible on Steam Deck
  • This game's default graphics configuration performs well on Steam Deck
  •  
  • SteamOS:
  • This game runs successfully on SteamOS
  • Note: Entering some text requires manually invoking the on-screen keyboard
  • Note: Some functionality is not accessible when using the default controller configuration, requiring use of the touchscreen or virtual keyboard, or a community configuration
  •  
  • category: Playable
  • steamos_compatibility: Compatible
  • test_timestamp: 25 April 2023 – 00:00:00 UTC
  • tested_build_id: 10490100
  • configuration:
    supported_inputgamepad
    requires_manual_keyboard_invoke1
    requires_non_controller_launcher_nav0
    primary_player_is_controller_slot_00
    non_deck_display_glyphs1
    small_text0
    requires_internet_for_setup0
    requires_internet_for_singleplayer0
    recommended_runtimeproton-stable
    requires_h2640
    requires_voice_files0
    gamescope_frame_limiter_not_supported0
    hdr_support0
Content Descriptors Frequent Violence or Gore (2), General Mature Content (5)
First seen on SteamDB 9 October 2021 – 08:58:55 UTC (), in changelist #12800597
Content Descriptors (Including DLC) Frequent Violence or Gore (2), General Mature Content (5)

Supported Languages

1 Languages Interface Full Audio Subtitles
English Yes Yes Yes

Tags

🠊 Social Deduction 🥊 PvP 🔫 FPS 🤝 Party-Based RPG 💥 Action 🌪️ Battle Royale 🛡️ Tactical RPG 💥 Action RPG 🤝 Party Game 🌟 Arena Shooter 🕵️ Detective 🔍 Investigation 🔫 Extraction Shooter 🕹️ Multiplayer 🙌 First-Person 🐺 Werewolves 👥 Online Co-Op 🗣️ Conversation 🥳 Party 🥷 Stealth

Categories

Online PvP LAN PvP Online Co-op LAN Co-op Steam Achievements Steam Cloud Stats Includes level editor Includes Source SDK Profile Features Limited Multi-player PvP Co-op

Accessibility Categories

Stereo Sound Surround Sound Playable without Timed Input

Assets

Load all asset images
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header_image
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library_logo ↴
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Assets
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headerheader.jpg
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community_icon3f0384d2cf4e5f5cc04329273e16462ee572a0aa.jpg
page_background_pathapp/1786950
raw_page_backgroundpage_bg_raw.jpg
timestamp24 April 2025 – 11:28:14 UTC
Trailers
257068330 ↴
trailer_nameKlaus Veen's Treason - Trailer
trailer_category3
trailer_480p/video/webm257068330/movie480_vp9.webm
trailer_480p/video/mp4257068330/movie480.mp4
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screenshot_full257068330/93783756bacaab424819ce09cfbc6296917b5c41/movie_full.jpg
trailer_base_id777073
all_agestrue
is_highlighttrue
timestamp1730402650

History

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