Games like Apartment 666
Games like Apartment 666 include Notes of Soul, Bendy and the Dark Revival, The Forest, The Beast Inside, and Paper Dolls: Original /. We matched them by the tags players give Apartment 666 on Steam (Action, Indie, Adventure, and Horror): closest matches first, and among equally close ones the better-known games.

Notes of Soul
Shared: Action · Horror · Adventure

Bendy and the Dark Revival
Shared: Action · Horror · Adventure

The Forest
Shared: Horror · Adventure · Action

The Beast Inside
Shared: Adventure · Horror · Action

Paper Dolls: Original /
Shared: Adventure · Action · Horror

Spooky's Jump Scare Mansion: HD Renovation
Shared: Indie · Horror · Adventure

We Happy Few
Shared: Adventure · Action · Indie

CARRION
Shared: Action · Indie · Horror

Five Nights at Freddy's: Secret of the Mimic
Shared: Horror · Adventure · Action

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

Lucius
Shared: Adventure · Horror · Indie

The Hat Man: Shadow Ward
Shared: Indie · Horror · Adventure

[Chillas Art] The Convenience Store
Shared: Indie · Horror · Adventure

Little Nightmares
Shared: Horror · Adventure · Indie

DreadOut
Shared: Indie · Horror · Adventure

Daymare: 1998
Shared: Action · Horror · Adventure

Deadlight
Shared: Action · Indie · Adventure

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

Atomic Heart
Shared: Adventure · Action · Horror

Five Nights at Freddy's: Security Breach
Shared: Horror · Action · Adventure

Alan Wake
Shared: Action · Horror · Adventure

Darkwood
Shared: Horror · Adventure · Action

Escape the Backrooms
Shared: Horror · Adventure · Action

Despair
Shared: Indie · Action · Horror