Games like Psalm VR
Games like Psalm VR include Phasmophobia, Mouthwashing, Psalm 5:9-13, Garten of Banban, and SOMA. We matched them by the tags players give Psalm VR on Steam (Psychological Horror, Horror, Indie, Exploration, and Mystery): closest matches first, and among equally close ones the better-known games.

Phasmophobia
Shared: Horror · Psychological Horror · VR

Mouthwashing
Shared: Psychological Horror · Horror · Indie

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

Garten of Banban
Shared: Horror · Psychological Horror · VR

SOMA
Shared: Psychological Horror · Horror · Exploration

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

Firewatch
Shared: Mystery · Walking Simulator · Atmospheric

Outlast
Shared: Horror · Psychological Horror · First-Person

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

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

Resident Evil 7 Biohazard
Shared: Horror · VR · Psychological Horror

Scanner Sombre
Shared: Horror · Exploration · Psychological Horror

Don't Play This
Shared: Psychological Horror · Indie · Horror

Poppy Playtime
Shared: Horror · Psychological Horror · First-Person

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

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

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

Inside the Backrooms
Shared: Horror · Psychological Horror · Exploration

Psalm 2
Shared: Psychological Horror · Indie · Horror

Lethal Company
Shared: Horror · Psychological Horror · Exploration

MiSide
Shared: Psychological Horror · Horror · First-Person

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

The Park®
Shared: Psychological Horror · Horror · Walking Simulator

Visage
Shared: Psychological Horror · Horror · Indie