Games like Backrooms Mainframe
Games like Backrooms Mainframe include PEAK, Escape the Backrooms, Lethal Company, Backrooms: Escape Together, and Dead by Daylight. We matched them by the tags players give Backrooms Mainframe on Steam (Adventure, Strategy, First-Person, Horror, and Procedural Generation): closest matches first, and among equally close ones the better-known games.

PEAK
Shared: Adventure · Multiplayer · Co-op

Escape the Backrooms
Shared: Horror · Multiplayer · First-Person

Lethal Company
Shared: First-Person · Horror · Co-op

Backrooms: Escape Together
Shared: Horror · Multiplayer · First-Person

Dead by Daylight
Shared: Horror · Multiplayer · Co-op

Phasmophobia
Shared: Horror · Multiplayer · Co-op

Content Warning
Shared: Horror · Procedural Generation · Online Co-Op

Pacify
Shared: Horror · Co-op · Multiplayer

Left 4 Dead 2
Shared: Co-op · Multiplayer · Horror

Buckshot Roulette
Shared: Horror · First-Person · Strategy

R.E.P.O.
Shared: Horror · First-Person · Multiplayer

Labyrinthine
Shared: Horror · Co-op · Multiplayer

RV There Yet?
Shared: Adventure · Co-op · Multiplayer

Outlast
Shared: First-Person · Horror · Adventure

How to Fish
Shared: Multiplayer · Co-op · First-Person

Subnautica 2
Shared: Horror · Multiplayer · Co-op

Inside the Backrooms
Shared: Horror · Multiplayer · Adventure

Ready or Not
Shared: Multiplayer · Horror · First-Person

Sons Of The Forest
Shared: Co-op · Multiplayer · Horror

Don't Starve Together
Shared: Adventure · Co-op · Multiplayer

Dying Light
Shared: Horror · First-Person · Online Co-Op

Sea of Thieves: 2026 Edition
Shared: Adventure · Multiplayer · Co-op

PUBG: BATTLEGROUNDS
Shared: Multiplayer · First-Person · Adventure

DEVOUR
Shared: Horror · Multiplayer · Co-op

