Players now
0
newvs 24h ago · updates every minute
Last 7 days
Screenshots, achievements, specs, every price change and sale we've seen on Steam, and trading cards.
Loading from Steam…
Steam prices for United States (change the country in the top bar), and Steam keys from authorized stores.
Checking other stores…
Loading from Steam…
13% positive of 15 · Negative · Live from Steam
Loading reviews from Steam…
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.
Live data from Steam, tracked by SteamPlayerBase.
What changed on Steam for this game since we started following it: prices and sales, builds, name, release date and review score.
Review score: 13% on 2026-11-01 → 13% today (15 reviews)
No authorized Steam key store lists this game right now.
Games we track that share the most Steam tags with this one.
Not tested by Valve yet. Results from Valve's own testing.
Valve hasn't published test details for this game.
Every build released on Steam for this game since we started tracking it, with the developer's patch notes. Updated within minutes of each new build.
Fixed a spawn error where players would spawn into a wall upon playing the main game
-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 looked into and a fix will be out asap.* Shoul…
-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 bug where if you encountered an entity an…
Fixed a bug causing the generator in the parking garage to tell players to look for a battery instead of gas
This 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 animation adjustments, Ai adjustments, numerous b…
Patched bug where players would get an error regarding matching player names. This issue is fixed.
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!
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 hub after every level -Added hiding mechani…
-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 longer randomized -There are now hidden ar…
Hey 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 going forward! I have also started adding se…