Games like KOSHMAR
Games like KOSHMAR include September 7th, MiSide, Layers of Fear (2016), Garten of Banban, and The Exit 8. We matched them by the tags players give KOSHMAR on Steam (Simulation, Horror, Psychological Horror, Walking Simulator, and 3D Platformer): closest matches first, and among equally close ones the better-known games.

September 7th
Shared: Horror · Psychological Horror · Walking Simulator

MiSide
Shared: Psychological Horror · Horror · First-Person

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

Garten of Banban
Shared: Horror · Psychological Horror · First-Person

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

Summer of '58
Shared: Horror · Psychological Horror · Walking Simulator

Outlast
Shared: Horror · Psychological Horror · First-Person

Mouthwashing
Shared: Horror · Psychological Horror · Walking Simulator

Scanner Sombre
Shared: Horror · Walking Simulator · Psychological Horror

SOMA
Shared: Horror · Psychological Horror · Atmospheric

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

Poppy Playtime
Shared: Horror · Singleplayer · First-Person

Buckshot Roulette
Shared: Horror · First-Person · Singleplayer

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

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

Visage
Shared: Horror · Psychological Horror · First-Person

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

Phasmophobia
Shared: Horror · Psychological Horror · First-Person

What Remains of Edith Finch
Shared: Walking Simulator · First-Person · Atmospheric

Dollmare
Shared: Simulation · Horror · Psychological Horror

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

Escape the Backrooms
Shared: Horror · Psychological Horror · First-Person

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

Find Yourself
Shared: Simulation · Horror · Walking Simulator