Games like Shinjuku Anomaly
Games like Shinjuku Anomaly include LIMBO, Sally Face - Episode One, Firework, INSIDE, and Tiny Bunny. We matched them by the tags players give Shinjuku Anomaly on Steam (Indie, Adventure, Visual Novel, Dark, and Horror): closest matches first, and among equally close ones the better-known games.

LIMBO
Shared: Indie · Dark · Adventure

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

Firework
Shared: Indie · Horror · 2D

INSIDE
Shared: Dark · Indie · Horror

Tiny Bunny
Shared: Visual Novel · Horror · Dark

Little Nightmares
Shared: Adventure · Horror · Indie

DISTRAINT: Deluxe Edition
Shared: Indie · Horror · Adventure

Fran Bow
Shared: Adventure · Indie · Horror

Detention
Shared: Indie · Horror · Adventure

Little Nightmares II
Shared: Adventure · Horror · Dark

Hellblade: Senua's Sacrifice
Shared: Adventure · Dark · Horror

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

Rusty Lake Paradise
Shared: Indie · Adventure · Horror

Raging Loop
Shared: Visual Novel · Adventure · Indie

The Cat Lady
Shared: Adventure · Indie · Horror

Tales of the Black Forest
Shared: Indie · Adventure · Horror

GRIS
Shared: Indie · Adventure · Hand-drawn

OMORI
Shared: Indie · Horror · Hand-drawn

Blair Witch
Shared: Adventure · Indie · Horror

Bramble: The Mountain King
Shared: Adventure · Horror · Dark

Five Nights at Freddy's: Into the Pit
Shared: Adventure · Horror · 2D

Mouthwashing
Shared: Horror · Indie · Dark

Happy Game
Shared: Horror · Indie · Dark

The Coma 2: Vicious Sisters
Shared: Adventure · Indie · Horror