Games like CATACOMBS
Games like CATACOMBS include Outlast, Lethal Company, SOMA, Outlast 2, and Poppy Playtime. We matched them by the tags players give CATACOMBS on Steam (Horror, Psychological Horror, Survival Horror, Abstract, and Casual): closest matches first, and among equally close ones the better-known games.

Outlast
Shared: Horror · Survival Horror · Psychological Horror

Lethal Company
Shared: Horror · Survival Horror · Psychological Horror

SOMA
Shared: Horror · Psychological Horror · Survival Horror

Outlast 2
Shared: Horror · Psychological Horror · Survival Horror

Poppy Playtime
Shared: Horror · Survival Horror · Psychological Horror

Escape the Backrooms
Shared: Horror · Psychological Horror · Survival Horror

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

Visage
Shared: Horror · Psychological Horror · Survival Horror

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

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

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

The Outlast Trials
Shared: Horror · Survival Horror · Psychological Horror

Mouthwashing
Shared: Horror · Psychological Horror · Atmospheric

Pacify
Shared: Horror · Psychological Horror · Survival Horror

Five Nights at Freddy's 2
Shared: Horror · Survival Horror · Psychological Horror

Inside the Backrooms
Shared: Horror · Survival Horror · Psychological Horror

Garten of Banban
Shared: Horror · Psychological Horror · Survival Horror

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

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

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

SILENT HILL 2
Shared: Horror · Psychological Horror · Survival Horror

BABBDI
Shared: Exploration · Horror · Surreal

Layers of Fear (2016)
Shared: Horror · Psychological Horror · Atmospheric

DEVOUR
Shared: Horror · Survival Horror · Psychological Horror