Free · Browser · No download
Lost Corridors
A free Backrooms game you play online — liminal halls, endless corridors, first-person maze.
Drop into Escape mode and find the exit, or Build and grow your own world with prompts. Runs in the browser on desktop and phone — not Roblox, no codes, no install.
What is Lost Corridors?
Lost Corridors is a first-person Backrooms-inspired exploration game: mono-yellow carpet, fluorescent hum, crawl tubes, pool rooms, and mazes that keep going. It is a free online Backrooms simulator you open in your browser — no download required.
How to play
Choose Escape for a generated maze with an exit to find, or Build to grow corridors with design prompts. Walk with arrow keys or on-screen sticks on touch devices. Your position can save on this device between reloads.
Common questions
- Is it free?
- Yes. Play the full game in your browser at no cost.
- Do I need to download anything?
- No. It is a WebGL game — open the site and play.
- Is this the Roblox Backrooms Simulator?
- No. Lost Corridors is a standalone browser game, not a Roblox experience and not a codes list.
- Does it work on iPhone / mobile?
- Yes — touch twin-stick controls are built in. Landscape works best; you can also add it to your home screen as a PWA.