Games like Anamnesis
Games like Anamnesis include Five Nights at Freddy's, Lobotomy Corporation | Monster Management Simulation, Firework, No, I'm not a Human, and Phasmophobia. We matched them by the tags players give Anamnesis on Steam (Simulation, Horror, Psychological Horror, Supernatural, and Singleplayer): closest matches first, and among equally close ones the better-known games.

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

Lobotomy Corporation | Monster Management Simulation
Shared: Psychological Horror · Simulation · Horror

Firework
Shared: Horror · Indie · Psychological Horror

No, I'm not a Human
Shared: Horror · Psychological Horror · Singleplayer

Phasmophobia
Shared: Horror · Psychological Horror · Supernatural

MiSide
Shared: Psychological Horror · Horror · Singleplayer

Poppy Playtime
Shared: Horror · Singleplayer · Psychological Horror

Getting Over It with Bennett Foddy
Shared: Psychological Horror · Singleplayer · Horror

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

The Mortuary Assistant
Shared: Horror · Supernatural · Simulation

Chinese Parents
Shared: Psychological Horror · Simulation · Indie

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

Welcome to the Game II
Shared: Horror · Psychological Horror · Simulation

Five Nights at Freddy's 3
Shared: Horror · Singleplayer · Psychological Horror

The Test
Shared: Simulation · Psychological Horror · Singleplayer

Outlast
Shared: Horror · Psychological Horror · Singleplayer

Welcome to the Game
Shared: Horror · Simulation · Psychological Horror

Buckshot Roulette
Shared: Horror · Singleplayer · Indie

KinitoPET
Shared: Horror · Psychological Horror · Indie

Buddy Simulator 1984
Shared: Psychological Horror · Horror · Indie

Little Nightmares II
Shared: Horror · Singleplayer · Psychological Horror

Mouthwashing
Shared: Horror · Psychological Horror · Indie

[Chillas Art] The Convenience Store
Shared: Horror · Psychological Horror · Simulation

Little Nightmares
Shared: Horror · Singleplayer · Indie