Games like somnus
Games like somnus include Escape the Backrooms, Outlast, Lethal Company, Poppy Playtime, and SILENT HILL 2. We matched them by the tags players give somnus on Steam (Psychological Horror, Survival Horror, Pixel Graphics, Horror, and Psychological): closest matches first, and among equally close ones the better-known games.

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

Outlast
Shared: Survival Horror · Horror · Psychological Horror

Lethal Company
Shared: Horror · Survival Horror · Psychological Horror

Poppy Playtime
Shared: Horror · Survival Horror · Psychological Horror

SILENT HILL 2
Shared: Psychological Horror · Survival Horror · Horror

SOMA
Shared: Psychological Horror · Horror · Survival Horror

Visage
Shared: Psychological Horror · Survival Horror · Horror

The Beast Inside
Shared: Horror · Survival Horror · Adventure

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

Outlast 2
Shared: Psychological Horror · Survival Horror · Horror

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

IMSCARED
Shared: Psychological Horror · Horror · Pixel Graphics

Layers of Fear (2016)
Shared: Psychological Horror · Horror · Walking Simulator

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

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

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

Kholat
Shared: Psychological Horror · Horror · Survival Horror

Blair Witch
Shared: Psychological Horror · Horror · Adventure

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

Mouthwashing
Shared: Psychological Horror · Horror · Psychological

Mad Father
Shared: Psychological Horror · Horror · Pixel Graphics

Amnesia: A Machine For Pigs
Shared: Horror · Psychological Horror · Walking Simulator

SILENT HILL f
Shared: Psychological Horror · Survival Horror · Horror

DISTRAINT: Deluxe Edition
Shared: Psychological Horror · Pixel Graphics · Horror