Games like Kaishain
Games like Kaishain include The Exit 8, What Remains of Edith Finch, Scanner Sombre, Layers of Fear (2016), and Garten of Banban. We matched them by the tags players give Kaishain on Steam (Exploration, Puzzle, Walking Simulator, Psychological Horror, and 3D): closest matches first, and among equally close ones the better-known games.

The Exit 8
Shared: Exploration · Puzzle · Walking Simulator

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

Scanner Sombre
Shared: Exploration · Walking Simulator · Psychological Horror

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

Garten of Banban
Shared: Psychological Horror · Puzzle · First-Person

Firewatch
Shared: Walking Simulator · Exploration · First-Person

Poppy Playtime
Shared: Puzzle · Singleplayer · Horror

POOLS
Shared: Walking Simulator · Psychological Horror · Exploration

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

The Witness
Shared: Exploration · Puzzle · First-Person

Platform 8
Shared: Psychological Horror · Walking Simulator · Puzzle

Amnesia: A Machine For Pigs
Shared: Walking Simulator · Exploration · Horror

September 7th
Shared: Exploration · Walking Simulator · Psychological Horror

SOMA
Shared: Psychological Horror · Exploration · Horror

Outer Wilds
Shared: Exploration · Puzzle · Singleplayer

Inside the Backrooms
Shared: Puzzle · Psychological Horror · Horror

INFRA
Shared: Exploration · Puzzle · Walking Simulator

Garten of Banban 2
Shared: Puzzle · Psychological Horror · First-Person

Escape the Backrooms
Shared: Psychological Horror · Horror · Exploration

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

Dreamcore
Shared: Exploration · Walking Simulator · Psychological Horror

Psalm 5:9-13
Shared: Exploration · Psychological Horror · Walking Simulator

The Park®
Shared: Walking Simulator · Psychological Horror · Exploration

The Death | Thần Trùng
Shared: Puzzle · Psychological Horror · Horror