Games like Fragment
Games like Fragment include The Beginner's Guide, No, I'm not a Human, Mouthwashing, INSIDE, and Milk inside a bag of milk inside a bag of milk. We matched them by the tags players give Fragment on Steam (Abstract, Atmospheric, Emotional, Dark, and Surreal): closest matches first, and among equally close ones the better-known games.

The Beginner's Guide
Shared: Atmospheric · Abstract · Surreal

No, I'm not a Human
Shared: Atmospheric · Dark · Multiple Endings

Mouthwashing
Shared: Atmospheric · Dark · Surreal

INSIDE
Shared: Atmospheric · Dark · Multiple Endings

Milk inside a bag of milk inside a bag of milk
Shared: Abstract · Interactive Fiction · Emotional

LIMBO
Shared: Atmospheric · Dark · Surreal

Happy Game
Shared: Atmospheric · Dark · Surreal

Sally Face - Episode One
Shared: Dark · Atmospheric · Indie

I Did Not Buy This Ticket
Shared: Atmospheric · Surreal · Dark

Iron Lung
Shared: Atmospheric · Abstract · Horror

The Cat Lady
Shared: Atmospheric · Dark · Emotional

Hylics
Shared: Abstract · Surreal · Atmospheric

Tiny Bunny
Shared: Atmospheric · Dark · Horror

Little Nightmares
Shared: Atmospheric · Dark · Horror

Endacopia
Shared: Surreal · Atmospheric · Dark

Detention
Shared: Atmospheric · Dark · Horror

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

Layers of Fear 2 (2019)
Shared: Atmospheric · Dark · Horror

DEAD LETTER DEPT.
Shared: Atmospheric · Stylized · Surreal

SOMA
Shared: Atmospheric · Dark · Horror

Moncage
Shared: Atmospheric · Abstract · Surreal

Antichamber
Shared: Abstract · Surreal · Atmospheric

THRESHOLD
Shared: Atmospheric · Dark · Surreal

Milk outside a bag of milk outside a bag of milk
Shared: Abstract · Multiple Endings · Surreal