Games like Psycho
Games like Psycho include Outlast, Poppy Playtime, Resident Evil 7 Biohazard, Outlast 2, and Dead by Daylight. We matched them by the tags players give Psycho on Steam (Horror, Survival Horror, Psychological Horror, Singleplayer, and First-Person): closest matches first, and among equally close ones the better-known games.

Outlast
Shared: Horror · Survival Horror · First-Person

Poppy Playtime
Shared: Horror · Singleplayer · Survival Horror

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

Outlast 2
Shared: Horror · Survival Horror · Psychological Horror

Dead by Daylight
Shared: Horror · Survival Horror · Gore

Resident Evil Village
Shared: Horror · Survival Horror · Singleplayer

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

Granny
Shared: Horror · Survival Horror · Singleplayer

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

SOMA
Shared: Horror · Psychological Horror · Survival Horror

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

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

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

Garten of Banban
Shared: Horror · Singleplayer · Psychological Horror

The Outlast Trials
Shared: Horror · Survival Horror · Psychological Horror

Five Nights at Freddy's 2
Shared: Horror · Survival Horror · Singleplayer

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

Alien: Isolation
Shared: Horror · Survival Horror · First-Person

Resident Evil 2
Shared: Survival Horror · Horror · Singleplayer

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

Slender: The Arrival
Shared: Horror · Survival Horror · First-Person

Ultimate Custom Night
Shared: Horror · Singleplayer · Survival Horror

The Evil Within 2
Shared: Horror · Survival Horror · Psychological Horror

MADiSON
Shared: Horror · Psychological Horror · Survival Horror