Games like 180°
Games like 180° include Firewatch, Layers of Fear (2016), Escape the Backrooms, What Remains of Edith Finch, and Scanner Sombre. We matched them by the tags players give 180° on Steam (Adventure, Horror, Psychological Horror, Walking Simulator, and Immersive): closest matches first, and among equally close ones the better-known games.

Firewatch
Shared: Adventure · Walking Simulator · Atmospheric

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

Escape the Backrooms
Shared: Horror · Psychological Horror · Adventure

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

Scanner Sombre
Shared: Horror · Walking Simulator · Adventure

MiSide
Shared: Psychological Horror · Horror · 3D

Outlast
Shared: Horror · Psychological Horror · Atmospheric

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

SOMA
Shared: Horror · Psychological Horror · Atmospheric

POOLS
Shared: Psychological Horror · Walking Simulator · Atmospheric

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

BABBDI
Shared: Walking Simulator · Atmospheric · Exploration

Fears to Fathom® - Scratch Creek
Shared: Horror · Adventure · Psychological Horror

Fears to Fathom - Ironbark Lookout
Shared: Horror · Psychological Horror · Adventure

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

The Exit 8
Shared: Horror · Walking Simulator · Psychological Horror

Lethal Company
Shared: Horror · Psychological Horror · Exploration

Blair Witch
Shared: Adventure · Horror · Psychological Horror

Visage
Shared: Horror · Psychological Horror · Adventure

Little Nightmares
Shared: Horror · Adventure · Atmospheric

[Chillas Art] The Convenience Store
Shared: Horror · Adventure · Psychological Horror

Mouthwashing
Shared: Horror · Psychological Horror · Atmospheric

Bad Parenting 1: Mr. Red Face
Shared: Adventure · Horror · Psychological Horror

[Nightmare Files] Clap Clap
Shared: Horror · Adventure · Psychological Horror