Games like My 4 nights: Door 1
Games like My 4 nights: Door 1 include Buckshot Roulette, Outlast, Poppy Playtime, Garten of Banban, and Five Nights at Freddy's. We matched them by the tags players give My 4 nights: Door 1 on Steam (First-Person, Psychological Horror, Cats, 3D, and Walking Simulator): closest matches first, and among equally close ones the better-known games.

Buckshot Roulette
Shared: First-Person · Dark · 3D

Outlast
Shared: First-Person · Psychological Horror · Survival

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

Garten of Banban
Shared: First-Person · Psychological Horror · 3D

Five Nights at Freddy's
Shared: Psychological Horror · First-Person · Indie

From The Darkness
Shared: Psychological Horror · First-Person · Dark

MiSide
Shared: Psychological Horror · First-Person · 3D

The Exit 8
Shared: Walking Simulator · Psychological Horror · First-Person

September 7th
Shared: Psychological Horror · First-Person · Walking Simulator

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

What Remains of Edith Finch
Shared: First-Person · Walking Simulator · Psychological Horror

Slender: The Arrival
Shared: First-Person · Psychological Horror · Dark

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

POOLS
Shared: Psychological Horror · Walking Simulator · First-Person

Scanner Sombre
Shared: Walking Simulator · First-Person · Psychological Horror

The Long Dark
Shared: First-Person · Survival · Exploration

Visage
Shared: Psychological Horror · First-Person · Dark

Still Wakes the Deep
Shared: Psychological Horror · First-Person · Walking Simulator

Dollmare
Shared: Psychological Horror · First-Person · 3D

Garten of Banban 2
Shared: First-Person · Psychological Horror · 3D

Platform 8
Shared: Psychological Horror · Walking Simulator · First-Person

Psalm 5:9-13
Shared: Psychological Horror · First-Person · Walking Simulator

Five Nights at Freddy's 2
Shared: Psychological Horror · First-Person · Dark

SOMA
Shared: Psychological Horror · Dark · First-Person