Games like The Gassal
Games like The Gassal include The Mortuary Assistant, Phasmophobia, Mouthwashing, Sally Face - Episode One, and Poppy Playtime. We matched them by the tags players give The Gassal on Steam (Horror, Simulation, Psychological Horror, Supernatural, and Mystery): closest matches first, and among equally close ones the better-known games.

The Mortuary Assistant
Shared: Horror · Supernatural · Mystery

Phasmophobia
Shared: Horror · Psychological Horror · Supernatural

Mouthwashing
Shared: Horror · Psychological Horror · Indie

Sally Face - Episode One
Shared: Psychological Horror · Horror · Mystery

Poppy Playtime
Shared: Horror · Psychological Horror · Mystery

Demonologist
Shared: Horror · Psychological Horror · Dark

Firework
Shared: Horror · Psychological Horror · Mystery

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

Pacify
Shared: Horror · Psychological Horror · Supernatural

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

Locked Up
Shared: Horror · Simulation · Psychological Horror

Visage
Shared: Horror · Psychological Horror · Dark

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

Dread Flats
Shared: Horror · Psychological Horror · Supernatural

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

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

SOMA
Shared: Horror · Psychological Horror · Dark

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

Ghost Exorcism INC.
Shared: Horror · Supernatural · Psychological Horror

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

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

Subliminal
Shared: Psychological Horror · Horror · Mystery

iBLiS
Shared: Horror · Psychological Horror · Supernatural

What Remains of Edith Finch
Shared: Mystery · Walking Simulator · Psychological Horror