Games like CH13: Rest Stop
Games like CH13: Rest Stop include Mouthwashing, What Remains of Edith Finch, Firewatch, SOMA, and Layers of Fear (2016). We matched them by the tags players give CH13: Rest Stop on Steam (Horror, Psychological Horror, Atmospheric, Walking Simulator, and Thriller): closest matches first, and among equally close ones the better-known games.

Mouthwashing
Shared: Horror · Psychological Horror · Atmospheric

What Remains of Edith Finch
Shared: Atmospheric · Walking Simulator · Story Rich

Firewatch
Shared: Atmospheric · Walking Simulator · Story Rich

SOMA
Shared: Horror · Psychological Horror · Atmospheric

Layers of Fear (2016)
Shared: Horror · Psychological Horror · Atmospheric

Summer of '58
Shared: Horror · Atmospheric · Psychological Horror

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

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

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

MiSide
Shared: Psychological Horror · Horror · Story Rich

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

Fears to Fathom - Norwood Hitchhike
Shared: Horror · Psychological Horror · Atmospheric

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

Poppy Playtime
Shared: Horror · Psychological Horror · Dark

Sally Face - Episode One
Shared: Psychological Horror · Horror · Story Rich

SILENT HILL 2
Shared: Horror · Psychological Horror · Atmospheric

Outlast
Shared: Horror · Atmospheric · Psychological Horror

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

Visage
Shared: Horror · Psychological Horror · Atmospheric

Little Nightmares II
Shared: Horror · Atmospheric · Psychological Horror

Outer Wilds
Shared: Exploration · Story Rich · Atmospheric

ROUTINE
Shared: Psychological Horror · Atmospheric · Horror

Layers of Fear 2 (2019)
Shared: Horror · Psychological Horror · Atmospheric

Welcome to Kowloon
Shared: Horror · Psychological Horror · Atmospheric