Games like Psych
Games like Psych include Little Nightmares II, Poppy Playtime, SOMA, Little Nightmares, and Fears to Fathom - Ironbark Lookout. We matched them by the tags players give Psych on Steam (Horror, Thriller, Psychological Horror, Atmospheric, and Adventure): closest matches first, and among equally close ones the better-known games.

Little Nightmares II
Shared: Horror · Adventure · Atmospheric

Poppy Playtime
Shared: Horror · Psychological Horror · Dark

SOMA
Shared: Horror · Psychological Horror · Atmospheric

Little Nightmares
Shared: Horror · Atmospheric · Adventure

Fears to Fathom - Ironbark Lookout
Shared: Horror · Psychological Horror · Atmospheric

Darkwood
Shared: Horror · Psychological Horror · Adventure

Outlast
Shared: Horror · Atmospheric · Psychological Horror

Detention
Shared: Horror · Psychological Horror · Atmospheric

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

Inside the Backrooms
Shared: Horror · Psychological Horror · Adventure

Sally Face - Episode One
Shared: Psychological Horror · Horror · Adventure

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

Lethal Company
Shared: Horror · Psychological Horror · Exploration

Fears to Fathom - Norwood Hitchhike
Shared: Horror · Psychological Horror · Atmospheric

Mouthwashing
Shared: Horror · Psychological Horror · Atmospheric

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

MiSide
Shared: Psychological Horror · Horror · Atmospheric

Escape the Backrooms
Shared: Horror · Psychological Horror · Adventure

Visage
Shared: Horror · Psychological Horror · Atmospheric

Amnesia: Rebirth
Shared: Horror · Action-Adventure · Adventure

ROUTINE
Shared: Psychological Horror · Atmospheric · Horror

Alan Wake
Shared: Horror · Thriller · Adventure

Outlast 2
Shared: Horror · Psychological Horror · Atmospheric

Firework
Shared: Horror · Psychological Horror · Atmospheric