Games like Obscuris
Games like Obscuris include Lethal Company, Escape the Backrooms, Backrooms: Escape Together, The Outlast Trials, and Outlast. We matched them by the tags players give Obscuris on Steam (Horror, Survival Horror, Psychological Horror, First-Person, and Casual): closest matches first, and among equally close ones the better-known games.

Lethal Company
Shared: Horror · First-Person · Survival Horror

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

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

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

Outlast
Shared: Horror · Survival Horror · First-Person

Pacify
Shared: Horror · Psychological Horror · Survival Horror

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

Outlast 2
Shared: Horror · Survival Horror · Psychological Horror

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

Poppy Playtime
Shared: Horror · Survival Horror · First-Person

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

Phasmophobia
Shared: Horror · Psychological Horror · First-Person

Dead by Daylight
Shared: Horror · Survival Horror · First-Person

FIVE NIGHTS AT FREDDY'S: HELP WANTED
Shared: Horror · Survival Horror · First-Person

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

The Beast Inside
Shared: Horror · Survival Horror · First-Person

Visage
Shared: Horror · Survival Horror · Psychological Horror

SOMA
Shared: Horror · Psychological Horror · Survival Horror

Nuclear Nightmare
Shared: Survival Horror · Horror · First-Person

Dark Deception
Shared: Horror · First-Person · Psychological Horror

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

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

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

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