Games like Backrooms: The Phobolore
Games like Backrooms: The Phobolore include Lethal Company, Resident Evil Requiem, Escape the Backrooms, The Outlast Trials, and Inside the Backrooms. We matched them by the tags players give Backrooms: The Phobolore on Steam (Survival Horror, Horror, PvE, FPS, and Exploration): closest matches first, and among equally close ones the better-known games.

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

Resident Evil Requiem
Shared: Survival Horror · Horror · FPS

Escape the Backrooms
Shared: Horror · Survival Horror · Exploration

The Outlast Trials
Shared: Horror · Survival Horror · PvE

Inside the Backrooms
Shared: Horror · Survival Horror · Exploration

Poppy Playtime
Shared: Horror · Survival Horror · Dark

Outlast
Shared: Horror · Survival Horror · First-Person

Choo-Choo Charles
Shared: Survival Horror · Horror · First-Person

Five Nights at Freddy's: Security Breach
Shared: Horror · Survival Horror · Singleplayer

Resident Evil Village
Shared: Survival Horror · Horror · First-Person

Lunch Lady
Shared: Horror · Survival Horror · Dark

Outlast 2
Shared: Horror · Survival Horror · First-Person

Pacify
Shared: Horror · Survival Horror · Exploration

SOMA
Shared: Horror · Survival Horror · Dark

Resident Evil 7 Biohazard
Shared: Survival Horror · Horror · First-Person

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

Visage
Shared: Horror · Survival Horror · Dark

Subnautica 2
Shared: Horror · Survival Horror · Exploration

Darkwood
Shared: Survival Horror · Horror · Dark

Buckshot Roulette
Shared: Horror · Dark · First-Person

Slender: The Arrival
Shared: Survival Horror · Horror · First-Person

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

Bendy and the Dark Revival
Shared: Horror · Survival Horror · First-Person

Five Nights at Freddy's
Shared: Horror · Survival Horror · Singleplayer