Games like SUKIMA: The Creeping Gap
Games like SUKIMA: The Creeping Gap include MiSide, Firewatch, Layers of Fear (2016), What Remains of Edith Finch, and Platform 8. We matched them by the tags players give SUKIMA: The Creeping Gap on Steam (3D Platformer, Hidden Object, Simulation, Walking Simulator, and 3D): closest matches first, and among equally close ones the better-known games.

MiSide
Shared: Psychological Horror · First-Person · 3D

Firewatch
Shared: Adventure · Walking Simulator · First-Person

Layers of Fear (2016)
Shared: Walking Simulator · Horror · Psychological Horror

What Remains of Edith Finch
Shared: Walking Simulator · First-Person · Story Rich

Platform 8
Shared: Simulation · Walking Simulator · Hidden Object

Mouthwashing
Shared: Horror · Psychological Horror · Walking Simulator

Dollmare
Shared: Simulation · 3D · Horror

Still Wakes the Deep
Shared: Horror · Walking Simulator · Psychological Horror

SOMA
Shared: Horror · Psychological Horror · Story Rich

Blair Witch
Shared: Adventure · Horror · First-Person

September 7th
Shared: Walking Simulator · 3D Platformer · Horror

Amnesia: A Machine For Pigs
Shared: Walking Simulator · Horror · First-Person

Outlast
Shared: First-Person · Horror · Psychological Horror

The Cabin Factory
Shared: Walking Simulator · Horror · Psychological Horror

Summer of '58
Shared: Walking Simulator · Horror · First-Person

Garten of Banban
Shared: Horror · First-Person · 3D

Visage
Shared: Horror · Psychological Horror · First-Person

Welcome to Kowloon
Shared: Walking Simulator · Horror · Adventure

Father's Day
Shared: Simulation · 3D Platformer · Walking Simulator

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

The Beginner's Guide
Shared: Walking Simulator · First-Person · Story Rich

Scanner Sombre
Shared: Walking Simulator · Adventure · Horror

Hello Neighbor
Shared: Horror · First-Person · 3D Platformer

Among the Sleep - Enhanced Edition
Shared: Horror · Adventure · Walking Simulator