Games like HORSE
Games like HORSE include ParanormalHK, Poppy Playtime, Notes of Soul, White Day: A Labyrinth Named School, and Dark Deception. We matched them by the tags players give HORSE on Steam (Free to Play, Sexual Content, Adventure, Nudity, and Indie): closest matches first, and among equally close ones the better-known games.

ParanormalHK
Shared: Sexual Content · Horror · Nudity

Poppy Playtime
Shared: Free to Play · Horror · Psychological Horror

Notes of Soul
Shared: Sexual Content · Horror · Adventure

White Day: A Labyrinth Named School
Shared: Sexual Content · Adventure · Horror

Dark Deception
Shared: Free to Play · Horror · Psychological Horror

MiSide
Shared: Sexual Content · Psychological Horror · Horror

Samsara Room
Shared: Free to Play · Adventure · Indie

FATAL FRAME / PROJECT ZERO: Maiden of Black Water
Shared: Sexual Content · Horror · Nudity

Scorn
Shared: Sexual Content · Horror · Nudity

Marvel Rivals
Shared: Free to Play · Sexual Content · Adventure

We Were Here
Shared: Free to Play · Horror · Adventure

Lunar Mirror
Shared: Sexual Content · Indie · Horror

The First Descendant
Shared: Free to Play · Sexual Content · Adventure

Lucius
Shared: Adventure · Horror · Nudity

Clive Barker's Hellraiser: Revival
Shared: Sexual Content · Nudity · Horror

Ultimate Custom Night
Shared: Free to Play · Horror · Indie

Changed
Shared: Sexual Content · Psychological Horror · Adventure

Outlast 2
Shared: Horror · Psychological Horror · Nudity

Amnesia: The Dark Descent
Shared: Horror · Psychological Horror · Nudity

YOU and ME and HER: A Love Story
Shared: Sexual Content · Adventure · Psychological Horror

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

Wet Girl
Shared: Sexual Content · Nudity · Indie

Outlast
Shared: Horror · Psychological Horror · Adventure

Bad Dream: Fever
Shared: Adventure · Indie · Free to Play