Games like The Apartment
Games like The Apartment include Poppy Playtime, Atomic Heart, Five Nights at Freddy's: Security Breach, Escape the Backrooms, and Little Nightmares II. We matched them by the tags players give The Apartment on Steam (Action, Adventure, Horror, Psychological Horror, and Multiple Endings): closest matches first, and among equally close ones the better-known games.

Poppy Playtime
Shared: Horror · Singleplayer · Puzzle

Atomic Heart
Shared: Adventure · Action · Singleplayer

Five Nights at Freddy's: Security Breach
Shared: Horror · Singleplayer · Multiple Endings

Escape the Backrooms
Shared: Horror · Psychological Horror · Adventure

Little Nightmares II
Shared: Adventure · Horror · Singleplayer

Ready or Not
Shared: Horror · Singleplayer · FPS

MiSide
Shared: Psychological Horror · Horror · Singleplayer

Outlast
Shared: Horror · Psychological Horror · Singleplayer

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

Garten of Banban
Shared: Horror · Psychological Horror · Singleplayer

Little Nightmares
Shared: Horror · Adventure · Singleplayer

Buckshot Roulette
Shared: Horror · Singleplayer · Psychological Horror

Contraband Police
Shared: Action · Singleplayer · Simulation

Resident Evil 7 Biohazard
Shared: Horror · Singleplayer · Action

The Forest
Shared: Horror · Adventure · Action

Metro Exodus
Shared: Action · Singleplayer · Horror

Resident Evil Village
Shared: Horror · Action · Singleplayer

Resident Evil Requiem
Shared: Horror · Action · Singleplayer

The Beast Inside
Shared: Adventure · Horror · Action

Inside the Backrooms
Shared: Horror · Psychological Horror · Adventure

Duck Season
Shared: Horror · Action · Psychological Horror

Darkwood
Shared: Horror · Adventure · Action

Half-Life 2
Shared: Action · Singleplayer · FPS

Dark Deception
Shared: Horror · Psychological Horror · Singleplayer