Games like Phantasma Hotel
Games like Phantasma Hotel include Look Outside, Tiny Bunny, No, I'm not a Human, Darkest Dungeon®, and The Binding of Isaac: Rebirth. We matched them by the tags players give Phantasma Hotel on Steam (Horror, Dark, Turn-Based Combat, Investigation, and Choices Matter): closest matches first, and among equally close ones the better-known games.

Look Outside
Shared: Horror · Turn-Based Combat · Pixel Graphics

Tiny Bunny
Shared: Horror · Dark · Choices Matter

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

Darkest Dungeon®
Shared: Turn-Based Combat · Roguelike · Dark

The Binding of Isaac: Rebirth
Shared: Roguelike · Dark · Indie

Happy Game
Shared: Horror · Dark · Psychedelic

Five Nights at Freddy's: Into the Pit
Shared: Horror · 1980s · 2D

Phasmophobia
Shared: Horror · Dark · Investigation

Inscryption
Shared: Horror · Dark · Roguelike

Buckshot Roulette
Shared: Dark · Horror · Indie

Demonologist
Shared: Horror · Dark · Investigation

Poppy Playtime
Shared: Horror · Dark · Indie

FAITH: The Unholy Trinity
Shared: Horror · Dark · Pixel Graphics

LIMBO
Shared: Dark · Horror · 2D

CARRION
Shared: Horror · Pixel Graphics · Gore

WORLD OF HORROR
Shared: Horror · Pixel Graphics · Turn-Based Combat

DISTRAINT: Deluxe Edition
Shared: Horror · Dark · 2D

Endacopia
Shared: Horror · Dark · Surreal

Mouthwashing
Shared: Horror · Dark · Indie

Outlast 2
Shared: Horror · Dark · Gore

Scorn
Shared: Horror · Dark · Gore

SOMA
Shared: Horror · Dark · Gore

The Binding of Isaac
Shared: Dark · Roguelike · Top-Down

Undertale
Shared: Choices Matter · Pixel Graphics · 2D