Games like Backrooms: Lost Place
Games like Backrooms: Lost Place include Poppy Playtime, Five Nights at Freddy's: Security Breach, Little Nightmares II, Outlast, and Little Nightmares. We matched them by the tags players give Backrooms: Lost Place on Steam (Horror, Singleplayer, Indie, Atmospheric, and Thriller): closest matches first, and among equally close ones the better-known games.

Poppy Playtime
Shared: Horror · Singleplayer · First-Person

Five Nights at Freddy's: Security Breach
Shared: Horror · Singleplayer · First-Person

Little Nightmares II
Shared: Horror · Singleplayer · Adventure

Outlast
Shared: Horror · Atmospheric · Singleplayer

Little Nightmares
Shared: Horror · Singleplayer · Atmospheric

MiSide
Shared: Horror · Singleplayer · First-Person

Bendy and the Dark Revival
Shared: Horror · Singleplayer · Indie

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

Firewatch
Shared: Atmospheric · Adventure · Singleplayer

Stray
Shared: Singleplayer · Atmospheric · Adventure

Firework
Shared: Horror · Indie · Singleplayer

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

Garten of Banban
Shared: Horror · Singleplayer · First-Person

The Forest
Shared: Horror · Adventure · First-Person

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

The Room
Shared: Singleplayer · Atmospheric · Indie

Bendy and the Ink Machine
Shared: Horror · Singleplayer · First-Person

Lethal Company
Shared: Horror · First-Person · Atmospheric

Paper Dolls: Original /
Shared: Horror · Thriller · Adventure

Amnesia: Rebirth
Shared: Singleplayer · Horror · First-Person

The Beast Inside
Shared: Horror · Adventure · Singleplayer

Layers of Fear (2016)
Shared: Horror · Atmospheric · Singleplayer

Hello Neighbor 2
Shared: Horror · Adventure · Singleplayer

Among the Sleep - Enhanced Edition
Shared: Horror · Indie · Atmospheric