Games

s&box games list

Kampai Roulette

ots.kampai_roulette

A sinister party game for 2–4 players: bluff your friends, choose who drinks, and be the last soul standing.

View full analyticsPlayers · retention · sessions · updates · achievements

About


One more round. One less friend to trust.

Take a seat at a possessed bartender's table in Kampai Roulette, a social game of bluffing, risky choices, and betrayal for 2–4 players online. Inspired by Buckshot Roulette, it trades shotgun shells for covered glasses of sake and water. Only the last survivor leaves a winner.

Watch the pour. Remember the odds. Choose who drinks.


Each tray reveals its sake and water before the glasses are covered and shuffled. Pick a glass, use your items, then drink it yourself or force an opponent to take the risk. Drink water to keep your turn. Sake raises your intoxication. Reach five and your soul joins the bartender's collection.

Five items. Plenty of room for betrayal.


• Pill: privately discover what is in your glass. What you tell the table is up to you.
• Double Measure: make sake hit twice as hard. Water stays harmless.
• Wooden Hammer: smash a glass and reveal what everyone just avoided.
• Pickled Plum: lower your intoxication and stay in the game.
• Smoke Break: return your glass to the tray and end your turn without drinking.

Make a deal. Call a bluff. Turn the table against the leader. Every refill brings fresh glasses and new chances to betray an ally.

Bring your friends. Keep your promises optional. Kampai!


Online matches require 2–4 players.


Generative AI disclosure

Kampai Roulette includes artwork, models, and audio created using generative AI, including achievement icons, music, and sound effects. AI tools were also used during code development.



Join our Discord to find players, share feedback, and follow development:

Kampai Roulette player count history

7d range · hourly averages

Updates

8 updates
Version 26.10.31 Halloween Update Health and Poison. The old intoxication system is gone. Everyone starts with 5 Health. Poisoned drinks hurt, doubled ones hurt more, and you’re out when you hit zero. 35 changes

Added

  • Health and Poison. The old intoxication system is gone. Everyone starts with 5 Health. Poisoned drinks hurt, doubled ones hurt more, and you’re out when you hit zero.
  • Healing. Water in a Double Measure and the Pickled Plum now restore Health.
  • Cat Burglar. A new item that steals another player’s item and puts it straight into your inventory. While a steal is happening, the thief’s eyes glow red so everyone knows who did it.
  • Covered shuffle. Glasses are now shuffled under cover, with a tally showing how many Poisons are in play. At the start of a match the tally stays up a few extra seconds so you can read it.
  • Online leaderboards. All-time boards with a top-five preview, your own rank, and paging through the top players or the players around you.
  • TAB scoreboard. Hold TAB to see everyone at the table. From there you can view profiles and mute other players’ voice or chat just for yourself.
  • In-game chat with player avatars.
  • Your Steam profile now shows in Practice and the Tutorial.
  • Bots look around. Practice bots now glance at the glasses, items and players they’re about to act on.
  • A new match result screen showing the winner’s avatar and match stats.

Improved

  • A full visual overhaul. The main menu, lobbies, Quick Join, Find Lobby, Create Lobby, Practice setup, Settings, Career, Rules, leaderboards, chat and the Drink/Pass cards all share a new warm, ember-toned look.
  • Redesigned in-match HUD, with a clearer turn indicator and on-screen timer.
  • Other players’ Health now shows as a simple five-segment bar.
  • New seated player model and a new bartender.
  • Bartender subtitles restyled to match the new HUD.
  • Easier-to-read menus. Create Lobby and Practice setup are much clearer, popups look consistent, and Rules now has a scrollbar.
  • Tables are named after you by default when you create a lobby.
  • The camera now starts level instead of tilted down, and you stay visible in your seat during shuffles and reveals.
  • Tutorial and Rules are easier to read, and the tutorial covers more.
  • Smaller download, thanks to lighter textures and tighter packaging.
  • Music now plays at full length again.

Fixed

  • Sound issues.
  • Joining a game from the main menu failing in some cases.
  • Menu borders displaying incorrectly, and the glass action UI being unstable.
  • Leaderboards behaving oddly in their compact and expanded views.
  • Missing UI graphics in published builds.
  • The Hammer covering the next item on your desk, and now lying flat on the table.
  • The Health indicator showing incorrectly at full Health.
  • Placeholder name markers showing up over players.

Removed

  • The 4:3 aspect ratio and PS2 retro effect options.
  • The old bartender.
  • Intoxication and sake, replaced by Health and Poison.
  • Unnecessary helper notes in the menus.

Known issues

  • The Tutorial is temporarily switched off while we rework it for the new Health, Poison and shuffle rules.
  • Career stats tied to sake and intoxication start over, because those stats were renamed.
Version 26.10.15 26.10.15 added scoreboard with profile/mute/id buttons 6 changes

Added

  • added scoreboard with profile/mute/id buttons
  • added custom chat

Improved

  • improved lobby UI
  • improved server browser
  • improved menu UI
  • improved gameplay UI
Version 26.10.14 26.10.14 new bartender model 6 changes

Added

  • new bartender model
  • added perfomance overlay
  • added new item "Cat Burglar" -> Steal opponent item and use it right away
  • added separate practice mode where you can test new item

Improved

  • rebalanced double measure -> now it can remove intoxication if applied to water
  • updated tutorial
Show 5 older updates
Version 26.10.01 26.10.01 Optimized textures size, gamesize changed from 99.2MB to 46.5MB 2 changes

Improved

  • Optimized textures size, gamesize changed from 99.2MB to 46.5MB

Fixed

  • fixed issue when you cannot connect to friend lobby from sbox menu, steam invite and lobby list
Version 26.09.30 26.09.30 small UI fixes 1 change

Improved

  • small UI fixes
Version 26.09.29 26.09.29 hammer is now laying down on the table instead of T-Posing 3 changes

Improved

  • hammer is now laying down on the table instead of T-Posing
  • updated playermodel
  • bots are alive now
Version 26.09.28 26.09.28 added some visual hints for tutorial text to make it easier to read 5 changes

Added

  • added some visual hints for tutorial text to make it easier to read
  • applied same changes to Rules tab

Improved

  • simplified ingame text
  • improved tutorial modal windows
  • applied same changes to Rules tab
Version 26.09.27 26.09.27 gamesize decreased from 200.8MB to 96.1MB 2 changes

Improved

  • gamesize decreased from 200.8MB to 96.1MB

Fixed

  • fixed issue where new players didn't have most sound in game on first game launch

Media