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

Escape the Backrooms
Shared: Horror · Psychological Horror · Survival Horror

Backrooms: Escape Together
Shared: Horror · Psychological Horror · Survival Horror

Lethal Company
Shared: Horror · First-Person · Survival Horror

Dead by Daylight
Shared: Horror · Survival Horror · Multiplayer

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

Pacify
Shared: Horror · Psychological Horror · Survival Horror

DEVOUR
Shared: Horror · Survival Horror · Online Co-Op

The Outlast Trials
Shared: Horror · Survival Horror · Psychological Horror

Inside the Backrooms
Shared: Horror · Survival Horror · Psychological Horror

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

Outlast
Shared: Horror · Survival Horror · First-Person

PANICORE
Shared: Horror · Survival Horror · Psychological Horror

In Silence
Shared: Horror · Survival Horror · Psychological Horror

BIGFOOT
Shared: Horror · Survival Horror · Multiplayer

Outlast 2
Shared: Horror · Survival Horror · Psychological Horror

Subnautica 2
Shared: Horror · Multiplayer · Survival Horror

Dying Light
Shared: Survival Horror · Horror · First-Person

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

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

Fears to Fathom® - Scratch Creek
Shared: Horror · Psychological Horror · Co-op

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

Poppy Playtime
Shared: Horror · Survival Horror · First-Person

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

Demonologist
Shared: Horror · Psychological Horror · First-Person