Games like Commutator
Games like Commutator include SOMA, Mouthwashing, Amnesia: A Machine For Pigs, What Remains of Edith Finch, and Sally Face - Episode One. We matched them by the tags players give Commutator on Steam (Psychological Horror, Horror, Atmospheric, Text-Based, and Interactive Fiction): closest matches first, and among equally close ones the better-known games.

SOMA
Shared: Psychological Horror · Horror · Atmospheric

Mouthwashing
Shared: Psychological Horror · Horror · Atmospheric

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

What Remains of Edith Finch
Shared: Atmospheric · Story Rich · Mystery

Sally Face - Episode One
Shared: Psychological Horror · Horror · Story Rich

Firewatch
Shared: Atmospheric · Story Rich · Mystery

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

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

Stories Untold
Shared: Horror · Atmospheric · Text-Based

Dagon: by H. P. Lovecraft
Shared: Horror · Atmospheric · Psychological Horror

Iron Lung
Shared: Horror · Psychological Horror · Atmospheric

Little Nightmares
Shared: Horror · Atmospheric · Psychological Horror

Outer Wilds
Shared: Story Rich · Atmospheric · Mystery

Tiny Bunny
Shared: Horror · Atmospheric · Psychological Horror

Little Nightmares II
Shared: Horror · Psychological Horror · Atmospheric

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

MiSide
Shared: Psychological Horror · Horror · Story Rich

SILENT HILL 2
Shared: Psychological Horror · Horror · Atmospheric

Firework
Shared: Horror · Psychological Horror · Atmospheric

DISTRAINT: Deluxe Edition
Shared: Psychological Horror · Horror · Atmospheric

Poppy Playtime
Shared: Horror · Psychological Horror · Mystery

Milk inside a bag of milk inside a bag of milk
Shared: Psychological Horror · Horror · Interactive Fiction

Detention
Shared: Horror · Psychological Horror · Atmospheric

Fears to Fathom - Norwood Hitchhike
Shared: Psychological Horror · Horror · Atmospheric