Games like Phantaruk
Games like Phantaruk include Outlast, The Beast Inside, Poppy Playtime, Resident Evil 4 (2005), and Bendy and the Dark Revival. We matched them by the tags players give Phantaruk on Steam (Action, Adventure, Indie, Horror, and Survival Horror): closest matches first, and among equally close ones the better-known games.

Outlast
Shared: Horror · Survival Horror · Atmospheric

The Beast Inside
Shared: Adventure · Horror · Action

Poppy Playtime
Shared: Horror · Singleplayer · Survival Horror

Resident Evil 4 (2005)
Shared: Action · Survival Horror · Horror

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

Resident Evil 7 Biohazard
Shared: Horror · Survival Horror · Singleplayer

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

Little Nightmares
Shared: Adventure · Horror · Atmospheric

The Forest
Shared: Horror · Adventure · Action

Resident Evil Village
Shared: Horror · Action · Survival Horror

Escape the Backrooms
Shared: Horror · Survival Horror · Adventure

Outlast 2
Shared: Horror · Survival Horror · Singleplayer

Penumbra Overture
Shared: Adventure · Horror · Indie

The Outlast Trials
Shared: Horror · Survival Horror · Action

Resident Evil Requiem
Shared: Action · Survival Horror · Horror

Alien: Isolation
Shared: Horror · Survival Horror · Atmospheric

METRO 2033 Redux
Shared: Action · Horror · Atmospheric

Ready or Not
Shared: Realistic · Horror · Singleplayer

Backrooms: Escape Together
Shared: Horror · Survival Horror · Atmospheric

Amnesia: The Dark Descent
Shared: Horror · Survival Horror · Atmospheric

We Happy Few
Shared: Adventure · Action · Indie

The Evil Within 2
Shared: Horror · Survival Horror · Action

Darkwood
Shared: Adventure · Horror · Action

Slender: The Arrival
Shared: Horror · Indie · Survival Horror

