Games like KASAP
Games like KASAP include No, I'm not a Human, MiSide, The Test, SOMA, and Tiny Bunny. We matched them by the tags players give KASAP on Steam (Casual, 3D, 1990's, Atmospheric, and Cooking): closest matches first, and among equally close ones the better-known games.

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

MiSide
Shared: Psychological Horror · 3D · Horror

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

SOMA
Shared: Atmospheric · Horror · Psychological Horror

Tiny Bunny
Shared: Atmospheric · Horror · Psychological Horror

Road 96
Shared: 1990's · Atmospheric · Choices Matter

Little Nightmares
Shared: Atmospheric · Horror · Singleplayer

Outlast
Shared: Horror · Atmospheric · Psychological Horror

Little Nightmares II
Shared: Horror · Atmospheric · Psychological Horror

SILENT HILL 2
Shared: Horror · Psychological Horror · Atmospheric

Mouthwashing
Shared: Atmospheric · Horror · Psychological Horror

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

Fears to Fathom - Woodbury Getaway
Shared: Casual · Psychological Horror · Horror

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

Sally Face - Episode One
Shared: Psychological Horror · Horror · Story Rich

Little Misfortune
Shared: Psychological Horror · Horror · Choices Matter

Outlast 2
Shared: Horror · Psychological Horror · Atmospheric

Five Nights at Freddy's: Security Breach
Shared: Horror · 3D · Singleplayer

Kiosk
Shared: Horror · Cooking · Psychological Horror

Firewatch
Shared: Atmospheric · Story Rich · Adventure

INSIDE
Shared: Atmospheric · Horror · Story Rich

That's not my Neighbor
Shared: Casual · Horror · Choices Matter

The Witcher 3: Wild Hunt — Remastered
Shared: Atmospheric · Story Rich · Choices Matter

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