Games like The Wetrooms: Liminal Pools
Games like The Wetrooms: Liminal Pools include Outlast, Poppy Playtime, SOMA, Darkwood, and Layers of Fear (2016). We matched them by the tags players give The Wetrooms: Liminal Pools on Steam (Action, Walking Simulator, Adventure, Horror, and Surreal): closest matches first, and among equally close ones the better-known games.

Outlast
Shared: Horror · Psychological Horror · Atmospheric

Poppy Playtime
Shared: Horror · Puzzle · Psychological Horror

SOMA
Shared: Horror · Psychological Horror · Atmospheric

Darkwood
Shared: Horror · Adventure · Action

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

The Forest
Shared: Horror · Adventure · Action

The Exit 8
Shared: Walking Simulator · Horror · Exploration

Little Nightmares II
Shared: Adventure · Horror · Puzzle

What Remains of Edith Finch
Shared: Walking Simulator · Adventure · Atmospheric

Garten of Banban
Shared: Horror · Psychological Horror · Puzzle

Resident Evil 7 Biohazard
Shared: Horror · Action · Psychological Horror

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

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

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

Firewatch
Shared: Adventure · Walking Simulator · Atmospheric

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

Scanner Sombre
Shared: Walking Simulator · Horror · Adventure

The Beast Inside
Shared: Adventure · Horror · Action

ROUTINE
Shared: Psychological Horror · Adventure · Horror

Garten of Banban 2
Shared: Horror · Psychological Horror · Puzzle

Outlast 2
Shared: Horror · Psychological Horror · Atmospheric

Little Nightmares
Shared: Horror · Adventure · Atmospheric

We Happy Few
Shared: Adventure · Action · Psychological Horror

Visage
Shared: Horror · Psychological Horror · Adventure