Games like The Door Factory
Games like The Door Factory include The Cabin Factory, The Exit 8, Layers of Fear (2016), No, I'm not a Human, and Outlast. We matched them by the tags players give The Door Factory on Steam (Horror, Psychological Horror, Walking Simulator, Choices Matter, and Immersive Sim): closest matches first, and among equally close ones the better-known games.

The Cabin Factory
Shared: Horror · Psychological Horror · Walking Simulator

The Exit 8
Shared: Horror · Walking Simulator · Psychological Horror

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

No, I'm not a Human
Shared: Horror · Psychological Horror · Choices Matter

Outlast
Shared: Horror · Psychological Horror · First-Person

[Chillas Art] The Convenience Store
Shared: Horror · Psychological Horror · Simulation

SOMA
Shared: Horror · Psychological Horror · Atmospheric

Visage
Shared: Horror · Psychological Horror · Walking Simulator

Platform 8
Shared: Psychological Horror · Walking Simulator · Simulation

Amnesia: A Machine For Pigs
Shared: Horror · Walking Simulator · Psychological Horror

The Complex: Expedition
Shared: Horror · Psychological Horror · Realistic

Scanner Sombre
Shared: Horror · Walking Simulator · Psychological Horror

Mouthwashing
Shared: Horror · Psychological Horror · Walking Simulator

Still Wakes the Deep
Shared: Horror · Psychological Horror · Walking Simulator

Escape the Backrooms
Shared: Horror · Psychological Horror · Exploration

What Remains of Edith Finch
Shared: Walking Simulator · Atmospheric · Exploration

DON'T SCREAM
Shared: Horror · Psychological Horror · Walking Simulator

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

POOLS
Shared: Psychological Horror · Walking Simulator · Realistic

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

Firewatch
Shared: Walking Simulator · Atmospheric · Horror

September 7th
Shared: Horror · Walking Simulator · Psychological Horror

Summer of '58
Shared: Horror · Psychological Horror · Walking Simulator

MiSide
Shared: Psychological Horror · Horror · First-Person