Games like Don't Knock Twice
Games like Don't Knock Twice include Resident Evil 7 Biohazard, Resident Evil Village, Outlast, Poppy Playtime, and Lethal Company. We matched them by the tags players give Don't Knock Twice on Steam (Psychological Horror, Adventure, First-Person, Horror, and Action): closest matches first, and among equally close ones the better-known games.

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

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

Outlast
Shared: First-Person · Psychological Horror · Horror

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

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

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

SOMA
Shared: Psychological Horror · Horror · Atmospheric

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

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

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

Garten of Banban
Shared: Psychological Horror · First-Person · Horror

Amnesia: The Dark Descent
Shared: Psychological Horror · Horror · First-Person

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

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

Five Nights at Freddy's: Secret of the Mimic
Shared: Adventure · First-Person · Horror

MiSide
Shared: Psychological Horror · First-Person · Horror

The Forest
Shared: Horror · Adventure · First-Person

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

Visage
Shared: Psychological Horror · Horror · First-Person

Darkwood
Shared: Adventure · Psychological Horror · Horror

Half-Life: Alyx
Shared: VR · Horror · First-Person

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

Penumbra Overture
Shared: Adventure · First-Person · Horror

Spooky's Jump Scare Mansion: HD Renovation
Shared: Adventure · Horror · First-Person