Games like Snowmen
Games like Snowmen include SOMA, Amnesia: The Dark Descent, Outlast, Mouthwashing, and Scorn. We matched them by the tags players give Snowmen on Steam (Gore, Horror, Collectathon, Atmospheric, and Short): closest matches first, and among equally close ones the better-known games.

SOMA
Shared: Horror · Atmospheric · Psychological Horror

Amnesia: The Dark Descent
Shared: Gore · Horror · Atmospheric

Outlast
Shared: Horror · Gore · Atmospheric

Mouthwashing
Shared: Horror · Atmospheric · Gore

Scorn
Shared: Gore · Horror · Atmospheric

Still Wakes the Deep
Shared: Horror · Gore · Psychological Horror

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

Iron Lung
Shared: Horror · Atmospheric · Psychological Horror

The Exit 8
Shared: Horror · Walking Simulator · Exploration

Resident Evil 7 Biohazard
Shared: Horror · Gore · Atmospheric

Firewatch
Shared: Atmospheric · Walking Simulator · Adventure

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

Inside the Backrooms
Shared: Horror · Psychological Horror · Puzzle

Psalm 5:9-13
Shared: Horror · Gore · Psychological Horror

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

Scanner Sombre
Shared: Horror · Atmospheric · Walking Simulator

Outlast 2
Shared: Horror · Gore · Psychological Horror

Detention
Shared: Horror · Atmospheric · Psychological Horror

Neverending Nightmares
Shared: Horror · Gore · Atmospheric

Lethal Company
Shared: Horror · Atmospheric · Psychological Horror

Garten of Banban
Shared: Horror · Psychological Horror · 3D

The Park®
Shared: Horror · Walking Simulator · Atmospheric

Fran Bow
Shared: Horror · Psychological Horror · Gore

MiSide
Shared: Horror · Psychological Horror · Atmospheric