Games like Backrooms: The Others
Games like Backrooms: The Others include Inside the Backrooms, Lethal Company, Species: Unknown, Deep Rock Galactic, and Escape the Backrooms. We matched them by the tags players give Backrooms: The Others on Steam (Exploration, FPS, Puzzle, Stealth, and PvE): closest matches first, and among equally close ones the better-known games.

Inside the Backrooms
Shared: Puzzle · Exploration · Horror

Lethal Company
Shared: Exploration · First-Person · Horror

Species: Unknown
Shared: Exploration · First-Person · Horror

Deep Rock Galactic
Shared: FPS · PvE · Exploration

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

The Exit 8
Shared: Exploration · Puzzle · Walking Simulator

SOMA
Shared: Exploration · Horror · First-Person

Five Nights at Freddy's: Security Breach
Shared: Exploration · Stealth · First-Person

PEAK
Shared: Exploration · First-Person · Adventure

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

Subnautica 2
Shared: Exploration · Horror · First-Person

The Outlast Trials
Shared: PvE · Stealth · Horror

Scanner Sombre
Shared: Exploration · Walking Simulator · First-Person

Outer Wilds
Shared: Exploration · Puzzle · Adventure

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

ROUTINE
Shared: Puzzle · Exploration · Sci-fi

What Remains of Edith Finch
Shared: Exploration · Walking Simulator · First-Person

Platform 8
Shared: Puzzle · Exploration · Walking Simulator

Far Cry® 5
Shared: FPS · Exploration · Stealth

Amnesia: Rebirth
Shared: Puzzle · First-Person · Exploration

Killer Frequency
Shared: Puzzle · Exploration · Horror

Gloomwood
Shared: FPS · Stealth · Exploration

Five Nights at Freddy's: Secret of the Mimic
Shared: Exploration · First-Person · Horror

Firewatch
Shared: Exploration · Walking Simulator · First-Person