Games like Seven Doors
Games like Seven Doors include Outlast, Poppy Playtime, Little Nightmares, Outlast 2, and Amnesia: The Dark Descent. We matched them by the tags players give Seven Doors on Steam (Horror, Adventure, First-Person, Atmospheric, and Stealth): closest matches first, and among equally close ones the better-known games.

Outlast
Shared: Horror · First-Person · Atmospheric

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

Little Nightmares
Shared: Horror · Adventure · Atmospheric

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

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

Visage
Shared: Horror · First-Person · Survival Horror

Little Nightmares II
Shared: Horror · Adventure · Atmospheric

The Outlast Trials
Shared: Horror · First-Person · Survival Horror

SOMA
Shared: Horror · Atmospheric · Psychological Horror

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

Penumbra Overture
Shared: Horror · Adventure · First-Person

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

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

Escape the Backrooms
Shared: Horror · First-Person · Psychological Horror

Alien: Isolation
Shared: Horror · Survival Horror · Atmospheric

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

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

Penumbra: Black Plague Gold Edition
Shared: Horror · Adventure · First-Person

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

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

Layers of Fear (2016)
Shared: Horror · Atmospheric · First-Person

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

Blair Witch
Shared: Horror · Adventure · First-Person

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