Games like Backrooms Adventure
Games like Backrooms Adventure include Poppy Playtime, Escape the Backrooms, Outlast, Inside the Backrooms, and Amnesia: The Dark Descent. We matched them by the tags players give Backrooms Adventure on Steam (Psychological Horror, Adventure, Survival Horror, Horror, and First-Person): closest matches first, and among equally close ones the better-known games.

Poppy Playtime
Shared: Horror · Singleplayer · Survival Horror

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

Outlast
Shared: Horror · Survival Horror · Psychological Horror

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

Amnesia: The Dark Descent
Shared: Psychological Horror · Horror · Survival Horror

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

Little Nightmares II
Shared: Adventure · Horror · Psychological Horror

SOMA
Shared: Psychological Horror · Horror · Survival Horror

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

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

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

Little Nightmares
Shared: Adventure · Horror · Singleplayer

Amnesia: Rebirth
Shared: First-Person · Action-Adventure · Adventure

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

Outlast 2
Shared: Psychological Horror · Horror · Survival Horror

Visage
Shared: Psychological Horror · Horror · Survival Horror

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

MiSide
Shared: Psychological Horror · Horror · First-Person

Layers of Fear (2016)
Shared: Psychological Horror · Horror · First-Person

Hello Neighbor 2
Shared: Adventure · Horror · First-Person

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

Penumbra Overture
Shared: Adventure · Horror · Survival Horror

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

The Beast Inside
Shared: Adventure · Horror · Survival Horror