Announcement
HotFix 1
Fixed a spawn error where players would spawn into a wall upon playing the main game
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Backrooms Mainframe
Also known as Backrooms Mainframe, backrooms mainframe, backrooms-mainframe
Backrooms Mainframe is a 1-6 player co-op horror game. Explore the labyrinthes while avoiding entities and other dangers while finding your way through.
Last update
23 Jun 2026
Players now
0
Latest update
Update history
Browse past updates and patch notes for this game.
20 updates
July 2023
- 2 new levels available now!Return to the backrooms with many new updates in the game! Lighting has been overhauled in numerous levels, all the menus have been redesigned and much more awaits! Steam post image Steam post image Steam post image Ste…
February 2023
- Hotfix-Fixed a few sections that would cause you to be stuck in an infinite load screen loop. ****There is a bug that has been reported in regards to level 0 where small sections of the level may not load. This is being looke…
- Backrooms Mainframe updated mechanics out now!After what feels like a crazy long wait, its time to return to the backrooms to see several new features! -Made the hub level a load game function -Changed level design to flow into each other instead of going to the hu…
January 2023
- Level 0 and balancing-Completely overhauled the graphics for Level 0 -Fixed a glitch where you could look through walls if you stood close enough to them -Balanced Bacteria to stop from detecting players further out than necessary -Fixed a…
- HotFix#1Fixed a bug causing the generator in the parking garage to tell players to look for a battery instead of gas
- -Redesigned all the levels in the main game to not utilize procedural generation for a more streamlined playthrough. -In the main game players can now drop out and join at will throughout the level -Suit colors are no l…Store
- Major UpdateThis update is the biggest one yet! I have added a hub level for you to choose which level you would like to play in the main multiplayer mode! Be warned though, they aren't unlocked from the start! Theres been animatio…
- Dungeon Crawler ModeHey guys! I just released a new mode called "Dungeon Crawler!" It has 5 levels that are all procedurally generated every time you play them. I plan to add more levels to this mode along with levels to the main modes goi…
- Player name bugPatched bug where players would get an error regarding matching player names. This issue is fixed.
- Bug patch/ enemy correction-Fixed an error where partygoers spawned in level 3 instead of the correct enemy -Fixed a bug preventing respawning in Level fun -Fixed a bug preventing sanity to work around most enemies
- Ai updates and discord link fixFixed the discord link and redid most of the ai for balancing.
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