Games like In Silent Walls : Sujet 13
Games like In Silent Walls : Sujet 13 include Mouthwashing, Firewatch, What Remains of Edith Finch, SOMA, and Layers of Fear (2016). We matched them by the tags players give In Silent Walls : Sujet 13 on Steam (Horror, Psychological Horror, Atmospheric, Exploration, and Psychological): closest matches first, and among equally close ones the better-known games.

Mouthwashing
Shared: Horror · Psychological Horror · Atmospheric

Firewatch
Shared: Atmospheric · Walking Simulator · Exploration

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

SOMA
Shared: Horror · Psychological Horror · Atmospheric

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

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

MiSide
Shared: Psychological Horror · Horror · Atmospheric

Amnesia: A Machine For Pigs
Shared: Horror · Atmospheric · Psychological Horror

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

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

SILENT HILL 2
Shared: Horror · Psychological Horror · Atmospheric

The Park®
Shared: Horror · Psychological Horror · Atmospheric

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

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

Lethal Company
Shared: Horror · Psychological Horror · Exploration

DON'T SCREAM
Shared: Horror · Psychological Horror · Atmospheric

September 7th
Shared: Horror · Psychological Horror · Exploration

Scanner Sombre
Shared: Horror · Exploration · Atmospheric

Outlast
Shared: Horror · Atmospheric · Psychological Horror

The Exit 8
Shared: Horror · Exploration · Psychological Horror

Outer Wilds
Shared: Exploration · Atmospheric · Story Rich

Visage
Shared: Horror · Psychological Horror · Atmospheric

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

Backrooms: Escape Together
Shared: Horror · Psychological Horror · Atmospheric