Games like Backrooms: Exit from Supermarket
Games like Backrooms: Exit from Supermarket include SOMA, Outlast, Poppy Playtime, Outlast 2, and Layers of Fear (2016). We matched them by the tags players give Backrooms: Exit from Supermarket on Steam (Horror, Psychological Horror, Atmospheric, Dark, and Story Rich): closest matches first, and among equally close ones the better-known games.

SOMA
Shared: Horror · Psychological Horror · Atmospheric

Outlast
Shared: Horror · Atmospheric · Psychological Horror

Poppy Playtime
Shared: Horror · Psychological Horror · Dark

Outlast 2
Shared: Horror · Psychological Horror · Survival Horror

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

What Remains of Edith Finch
Shared: Atmospheric · Story Rich · First-Person

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

Amnesia: A Machine For Pigs
Shared: Horror · Atmospheric · Story Rich

Still Wakes the Deep
Shared: Horror · Psychological Horror · Story Rich

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

Visage
Shared: Horror · Psychological Horror · Dark

Darkwood
Shared: Horror · Psychological Horror · Survival Horror

Little Nightmares
Shared: Horror · Atmospheric · Dark

Firewatch
Shared: Atmospheric · Story Rich · Adventure

Resident Evil 7 Biohazard
Shared: Horror · Survival Horror · Atmospheric

Mouthwashing
Shared: Horror · Psychological Horror · Atmospheric

Little Nightmares II
Shared: Horror · Dark · Atmospheric

Sally Face - Episode One
Shared: Psychological Horror · Horror · Story Rich

SILENT HILL 2
Shared: Horror · Psychological Horror · Atmospheric

MiSide
Shared: Psychological Horror · Horror · Story Rich

Penumbra Overture
Shared: Horror · Atmospheric · Psychological Horror

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

Slender: The Arrival
Shared: Horror · Survival Horror · Psychological Horror

The Beast Inside
Shared: Horror · Survival Horror · First-Person