Games like ClayTown Horror Part One
Games like ClayTown Horror Part One include SOMA, Outer Wilds, Inside the Backrooms, Poppy Playtime, and MiSide. We matched them by the tags players give ClayTown Horror Part One on Steam (Exploration, Horror, Puzzle, 3D, and First-Person): closest matches first, and among equally close ones the better-known games.

SOMA
Shared: Horror · Exploration · Psychological Horror

Outer Wilds
Shared: Exploration · Adventure · Puzzle

Inside the Backrooms
Shared: Horror · Puzzle · Exploration

Poppy Playtime
Shared: Horror · Puzzle · First-Person

MiSide
Shared: Horror · Psychological Horror · First-Person

The Exit 8
Shared: Exploration · Puzzle · Horror

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

Amnesia: The Dark Descent
Shared: Horror · Puzzle · Psychological Horror

Firewatch
Shared: Adventure · Exploration · First-Person

Layers of Fear (2016)
Shared: Horror · First-Person · Psychological Horror

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

Escape the Backrooms
Shared: Horror · Exploration · First-Person

Little Nightmares II
Shared: Horror · Puzzle · Adventure

Resident Evil 7 Biohazard
Shared: Horror · First-Person · Psychological Horror

Lethal Company
Shared: Horror · First-Person · Exploration

Backrooms: Escape Together
Shared: Horror · Psychological Horror · First-Person

Amanda the Adventurer
Shared: Horror · Puzzle · First-Person

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

Scanner Sombre
Shared: Exploration · Horror · First-Person

Amnesia: Rebirth
Shared: Puzzle · First-Person · Horror

Little Nightmares
Shared: Horror · Adventure · Puzzle

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

Outlast
Shared: Horror · First-Person · Psychological Horror

INFRA
Shared: Exploration · Puzzle · First-Person