Games like The Beast Inside
Games like The Beast Inside include Outlast, Resident Evil 7 Biohazard, Outlast 2, Resident Evil Village, and Dead by Daylight. We matched them by the tags players give The Beast Inside on Steam (Horror, Adventure, First-Person, Survival Horror, and Multiplayer): closest matches first, and among equally close ones the better-known games.

Outlast
Shared: Horror · First-Person · Survival Horror

Resident Evil 7 Biohazard
Shared: Horror · First-Person · Survival Horror

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

Resident Evil Village
Shared: Horror · Survival Horror · First-Person

Dead by Daylight
Shared: Horror · Survival Horror · Multiplayer

The Forest
Shared: Horror · Adventure · Survival Horror

Escape the Backrooms
Shared: Horror · Multiplayer · Survival Horror

Sons Of The Forest
Shared: Multiplayer · Horror · Survival Horror

Subnautica 2
Shared: Horror · Multiplayer · Survival Horror

Dark Deception
Shared: Horror · First-Person · Multiplayer

Poppy Playtime
Shared: Horror · First-Person · Singleplayer

The Outlast Trials
Shared: Horror · Multiplayer · Survival Horror

Slender: The Arrival
Shared: Horror · First-Person · Survival Horror

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

Dying Light
Shared: Horror · Survival Horror · First-Person

SOMA
Shared: Horror · Psychological Horror · Survival Horror

Visage
Shared: Horror · Survival Horror · First-Person

Bendy and the Dark Revival
Shared: Horror · First-Person · Adventure

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

Metro Exodus
Shared: Horror · Singleplayer · First-Person

Resident Evil 2
Shared: Horror · Survival Horror · Singleplayer

Five Nights at Freddy's: Security Breach
Shared: Horror · Survival Horror · First-Person

Granny
Shared: Horror · Survival Horror · First-Person

Ready or Not
Shared: Horror · Multiplayer · First-Person