Backrooms: Code Yellow

Early Access

Developer: GameMechanic
Released: Sep 25, 2026
Steam reviews: 49% of players recommend it, from 468 reviews — Steam calls that “Mixed”
Tags: ActionAdventureIndie

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On Linux, Steam Deck and Steam Machine

Deck PlayableSteam Machine: PlayableSteamOS Compatible

Valve rates it Playable on Steam Deck. Valve rates it Playable on Steam Machine. Valve marks it SteamOS Compatible.

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About this game

The developer's description, from the game's Steam store page.

Backrooms: Code Yellow is a 1-6 player online co-op game where you delve into an infinitely massive unpredictable realm of endless rooms, hallways and distorted architecture. Work together to explore, complete tasks, collect data, and return to earn funding for the next days work. But don’t get too comfortable. You may not be alone.