Games like Escape the Backrooms
Games like Escape the Backrooms include Lethal Company, Backrooms: Escape Together, Phasmophobia, Dead by Daylight, and Inside the Backrooms. We matched them by the tags players give Escape the Backrooms on Steam (Horror, Multiplayer, Online Co-Op, Psychological Horror, and Survival Horror): closest matches first, and among equally close ones the better-known games.

Lethal Company
Shared: Horror · Online Co-Op · Co-op

Backrooms: Escape Together
Shared: Horror · Multiplayer · Online Co-Op

Phasmophobia
Shared: Horror · Multiplayer · Online Co-Op

Dead by Daylight
Shared: Horror · Multiplayer · Online Co-Op

Inside the Backrooms
Shared: Horror · Multiplayer · Psychological Horror

Pacify
Shared: Horror · Multiplayer · Online Co-Op

PEAK
Shared: Multiplayer · Online Co-Op · Co-op

R.E.P.O.
Shared: Horror · Multiplayer · Online Co-Op

The Outlast Trials
Shared: Horror · Multiplayer · Co-op

DEVOUR
Shared: Horror · Multiplayer · Online Co-Op

Content Warning
Shared: Horror · Online Co-Op · Multiplayer

Nuclear Nightmare
Shared: Horror · Online Co-Op · Survival Horror

Subnautica 2
Shared: Multiplayer · Horror · Co-op

PANICORE
Shared: Horror · Online Co-Op · Psychological Horror

Outlast
Shared: Horror · Psychological Horror · Survival Horror

Emissary Zero
Shared: Horror · Multiplayer · Online Co-Op

Left 4 Dead 2
Shared: Multiplayer · Co-op · Online Co-Op

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

RV There Yet?
Shared: Multiplayer · Online Co-Op · Co-op

In Silence
Shared: Horror · Multiplayer · Online Co-Op

Dying Light
Shared: Horror · Online Co-Op · Survival Horror

Lunch Lady
Shared: Horror · Multiplayer · Online Co-Op

Demonologist
Shared: Horror · Multiplayer · Online Co-Op

We Were Here
Shared: Multiplayer · Co-op · Horror