Games like Exit 13 Gallery Escape
Games like Exit 13 Gallery Escape include Layers of Fear (2016), MiSide, Outlast, Poppy Playtime, and Garten of Banban. We matched them by the tags players give Exit 13 Gallery Escape on Steam (Psychological Horror, Singleplayer, Horror, Atmospheric, and Walking Simulator): closest matches first, and among equally close ones the better-known games.

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

MiSide
Shared: Psychological Horror · Horror · Singleplayer

Outlast
Shared: Horror · Psychological Horror · Atmospheric

Poppy Playtime
Shared: Singleplayer · Horror · Psychological Horror

Garten of Banban
Shared: Singleplayer · Horror · Psychological Horror

ROUTINE
Shared: Singleplayer · Psychological Horror · Atmospheric

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

The Cabin Factory
Shared: Psychological Horror · Horror · Walking Simulator

SOMA
Shared: Psychological Horror · Horror · Atmospheric

Firewatch
Shared: Atmospheric · Walking Simulator · Singleplayer

Little Nightmares II
Shared: Horror · Singleplayer · Psychological Horror

Mouthwashing
Shared: Psychological Horror · Horror · Atmospheric

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

Little Nightmares
Shared: Horror · Singleplayer · Atmospheric

Resident Evil 7 Biohazard
Shared: Horror · Singleplayer · First-Person

Blair Witch
Shared: Psychological Horror · Horror · First-Person

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

Scanner Sombre
Shared: Horror · Walking Simulator · Atmospheric

Visage
Shared: Psychological Horror · Horror · Singleplayer

Outlast 2
Shared: Psychological Horror · Horror · Singleplayer

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

KARMA: The Dark World
Shared: Psychological Horror · Horror · Walking Simulator

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

Five Nights at Freddy's
Shared: Singleplayer · Horror · Psychological Horror