Games like SELF
Games like SELF include Raging Loop, Firewatch, Sally Face - Episode One, What Remains of Edith Finch, and DISTRAINT: Deluxe Edition. We matched them by the tags players give SELF on Steam (Adventure, Indie, Psychological, Mystery, and Nonlinear): closest matches first, and among equally close ones the better-known games.

Raging Loop
Shared: Adventure · Mystery · Indie

Firewatch
Shared: Adventure · Mystery · Story Rich

Sally Face - Episode One
Shared: Indie · Adventure · Psychological Horror

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

DISTRAINT: Deluxe Edition
Shared: Indie · Adventure · Psychological Horror

INMOST
Shared: Indie · Adventure · Psychological

Outer Wilds
Shared: Adventure · Mystery · Story Rich

The Beginner's Guide
Shared: Indie · Adventure · Story Rich

Hellblade: Senua's Sacrifice
Shared: Psychological · Adventure · Atmospheric

Mouthwashing
Shared: Indie · Psychological Horror · Psychological

OneShot
Shared: Indie · Story Rich · Adventure

The Test
Shared: Psychological · Story Rich · Psychological Horror

Fran Bow
Shared: Adventure · Indie · Psychological Horror

Chants of Sennaar
Shared: Adventure · Indie · Word Game

To the Moon
Shared: Indie · Adventure · Story Rich

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

The Room Three
Shared: Adventure · Mystery · Indie

Impostor Factory
Shared: Adventure · Story Rich · Mystery

Return of the Obra Dinn
Shared: Mystery · Indie · Story Rich

OMORI
Shared: Indie · Psychological Horror · Story Rich

The White Door
Shared: Adventure · Indie · Mystery

Little Nightmares
Shared: Adventure · Indie · Atmospheric

Milk inside a bag of milk inside a bag of milk
Shared: Psychological · Experimental · Psychological Horror

Servant of the Lake
Shared: Adventure · Indie · Mystery