Games like No, I'm not a Human
Games like No, I'm not a Human include Mouthwashing, SOMA, MiSide, Outlast, and Tiny Bunny. We matched them by the tags players give No, I'm not a Human on Steam (Horror, Psychological Horror, Choices Matter, Indie, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Mouthwashing
Shared: Horror · Psychological Horror · Story Rich

SOMA
Shared: Horror · Psychological Horror · Story Rich

MiSide
Shared: Psychological Horror · Horror · Story Rich

Outlast
Shared: Horror · Psychological Horror · Atmospheric

Tiny Bunny
Shared: Horror · Psychological Horror · Story Rich

Poppy Playtime
Shared: Horror · Singleplayer · Psychological Horror

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

The Test
Shared: Psychological Horror · Story Rich · Multiple Endings

Outlast 2
Shared: Horror · Psychological Horror · Singleplayer

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

Fran Bow
Shared: Psychological Horror · Horror · Story Rich

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

Buckshot Roulette
Shared: Horror · Dark · Singleplayer

Little Nightmares
Shared: Horror · Singleplayer · Atmospheric

Little Nightmares II
Shared: Horror · Singleplayer · Psychological Horror

SILENT HILL 2
Shared: Horror · Psychological Horror · Story Rich

Still Wakes the Deep
Shared: Horror · Psychological Horror · Story Rich

Static Dread: The Lighthouse
Shared: Horror · Indie · Choices Matter

Little Misfortune
Shared: Psychological Horror · Indie · Choices Matter

Oxenfree
Shared: Choices Matter · Story Rich · Indie

The Casting of Frank Stone™
Shared: Horror · Choices Matter · Singleplayer

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

The Coffin of Andy and Leyley
Shared: Psychological Horror · Story Rich · Choices Matter

Firework
Shared: Horror · Indie · Psychological Horror