Games like GAG
Games like GAG include Milk inside a bag of milk inside a bag of milk, The NOexistenceN of you AND me, Milk outside a bag of milk outside a bag of milk, Mouthwashing, and No, I'm not a Human. We matched them by the tags players give GAG on Steam (Indie, Experimental, Interactive Fiction, Psychological Horror, and Surreal): closest matches first, and among equally close ones the better-known games.

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

The NOexistenceN of you AND me
Shared: Psychological Horror · Visual Novel · Interactive Fiction

Milk outside a bag of milk outside a bag of milk
Shared: Psychological Horror · Indie · Visual Novel

Mouthwashing
Shared: Psychological Horror · Indie · Story Rich

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

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

The Hungry Lamb: Traveling in the Late Ming Dynasty
Shared: Interactive Fiction · Visual Novel · Story Rich

OMORI
Shared: Indie · Psychological Horror · Story Rich

Slay the Princess — The Pristine Cut
Shared: Psychological Horror · Visual Novel · Story Rich

Tiny Bunny
Shared: Story Rich · Horror · Visual Novel

Detention
Shared: Indie · Psychological Horror · Horror

The Coffin of Andy and Leyley
Shared: Story Rich · Psychological Horror · Visual Novel

Fran Bow
Shared: Psychological Horror · Indie · Story Rich

Dagon: by H. P. Lovecraft
Shared: Horror · Psychological Horror · Story Rich

MiSide
Shared: Psychological Horror · Story Rich · Horror

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

KinitoPET
Shared: Indie · Psychological Horror · Horror

Inscryption
Shared: Story Rich · Horror · Indie

Scarlet Hollow
Shared: Psychological Horror · Horror · Visual Novel

Little Misfortune
Shared: Indie · Psychological Horror · Story Rich

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

The Cat Lady
Shared: Indie · Psychological Horror · Story Rich

Buckshot Roulette
Shared: Indie · Horror · Dark

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