Games like Neural: Forbidden
Games like Neural: Forbidden include Five Nights at Freddy's, No, I'm not a Human, Poppy Playtime, Getting Over It with Bennett Foddy, and Firework. We matched them by the tags players give Neural: Forbidden on Steam (Indie, Horror, Psychological Horror, and Singleplayer): closest matches first, and among equally close ones the better-known games.

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

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

Poppy Playtime
Shared: Horror · Singleplayer · Psychological Horror

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

Firework
Shared: Indie · Horror · Psychological Horror

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

MiSide
Shared: Psychological Horror · Horror · Singleplayer

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

Outlast
Shared: Horror · Psychological Horror · Singleplayer

Mouthwashing
Shared: Horror · Psychological Horror · Indie

Little Nightmares
Shared: Horror · Singleplayer · Indie

Dark Deception
Shared: Horror · Singleplayer · Psychological Horror

Little Nightmares II
Shared: Horror · Singleplayer · Psychological Horror

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

Escape the Backrooms
Shared: Horror · Psychological Horror · Singleplayer

Pony Island
Shared: Indie · Psychological Horror · Singleplayer

KinitoPET
Shared: Horror · Psychological Horror · Indie

DISTRAINT: Deluxe Edition
Shared: Indie · Horror · Psychological Horror

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

Buckshot Roulette
Shared: Horror · Indie · Singleplayer

Fran Bow
Shared: Psychological Horror · Horror · Indie

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

Little Misfortune
Shared: Indie · Psychological Horror · Horror

Outlast 2
Shared: Horror · Psychological Horror · Singleplayer