Games like Napolitan Hotel(2D)
Games like Napolitan Hotel(2D) include Five Nights at Freddy's, Outlast, Ultimate Custom Night, Rain World, and Five Nights at Freddy's 2. We matched them by the tags players give Napolitan Hotel(2D) on Steam (2D Platformer, Horror, Detective, Difficult, and Survival): closest matches first, and among equally close ones the better-known games.

Five Nights at Freddy's
Shared: Horror · Difficult · Psychological Horror

Outlast
Shared: Horror · First-Person · Survival

Ultimate Custom Night
Shared: Horror · Difficult · Survival

Rain World
Shared: Difficult · Survival · 2D Platformer

Five Nights at Freddy's 2
Shared: Horror · Difficult · First-Person

Poppy Playtime
Shared: Horror · First-Person · Survival

Five Nights at Freddy's 3
Shared: Horror · Difficult · First-Person

Lethal Company
Shared: Horror · First-Person · Funny

Phasmophobia
Shared: Horror · Psychological Horror · First-Person

Five Nights at Freddy's 4
Shared: Horror · Difficult · First-Person

Five Nights at Freddy's: Sister Location
Shared: Horror · Difficult · First-Person

Hello Neighbor
Shared: Horror · First-Person · Difficult

DEVOUR
Shared: Horror · Survival · First-Person

The Forest
Shared: Horror · Survival · First-Person

Lobotomy Corporation | Monster Management Simulation
Shared: Difficult · Horror · Psychological Horror

Dead by Daylight
Shared: Horror · Survival · First-Person

Outlast 2
Shared: Horror · First-Person · Psychological Horror

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

The Outlast Trials
Shared: Horror · First-Person · Psychological Horror

Getting Over It with Bennett Foddy
Shared: Difficult · Horror · Psychological Horror

Don't Starve Together
Shared: Survival · Difficult · 2D

Amnesia: The Bunker
Shared: Horror · First-Person · Survival

Celeste
Shared: Difficult · 2D Platformer · 2D

Hand Simulator
Shared: Difficult · First-Person · Funny