Games like Horrific Xanatorium
Games like Horrific Xanatorium include Slay the Princess — The Pristine Cut, Tiny Bunny, Raging Loop, Milk inside a bag of milk inside a bag of milk, and The Coffin of Andy and Leyley. We matched them by the tags players give Horrific Xanatorium on Steam (Adventure, Visual Novel, Choose Your Own Adventure, Hand-drawn, and Horror): closest matches first, and among equally close ones the better-known games.

Slay the Princess — The Pristine Cut
Shared: Visual Novel · Choose Your Own Adventure · Horror

Tiny Bunny
Shared: Visual Novel · Horror · Dark

Raging Loop
Shared: Visual Novel · Adventure · Psychological Horror

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

The Coffin of Andy and Leyley
Shared: Visual Novel · Psychological · Hand-drawn

The Test
Shared: Choose Your Own Adventure · Visual Novel · Psychological

Fran Bow
Shared: Adventure · Horror · Psychological Horror

YOU and ME and HER: A Love Story
Shared: Visual Novel · Adventure · Psychological Horror

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

The Hungry Lamb: Traveling in the Late Ming Dynasty
Shared: Visual Novel · Adventure · Dark

The Song of Saya
Shared: Visual Novel · Horror · Psychological Horror

Little Nightmares II
Shared: Adventure · Horror · Dark

Doki Doki Literature Club Plus!
Shared: Visual Novel · Psychological Horror · Romance

Outlast 2
Shared: Horror · Psychological Horror · Dark

Outlast
Shared: Horror · Adventure · Psychological Horror

Little Nightmares
Shared: Adventure · Horror · Dark

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

Dagon: by H. P. Lovecraft
Shared: Visual Novel · Horror · Dark

Blair Witch
Shared: Adventure · Horror · Psychological Horror

PARANORMASIGHT: The Seven Mysteries of Honjo
Shared: Adventure · Visual Novel · Horror

Buckshot Roulette
Shared: Dark · Horror · Psychological

Mouthwashing
Shared: Horror · Psychological Horror · Psychological

Bad Dream: Coma
Shared: Adventure · Horror · Hand-drawn

The Medium
Shared: Adventure · Horror · Psychological Horror