Games like The Princess Factory
Games like The Princess Factory include Sally Face - Episode One, Fran Bow, Little Nightmares II, SOMA, and No, I'm not a Human. We matched them by the tags players give The Princess Factory on Steam (Simulation, Adventure, Horror, Psychological Horror, and Choices Matter): closest matches first, and among equally close ones the better-known games.

Sally Face - Episode One
Shared: Psychological Horror · Horror · Adventure

Fran Bow
Shared: Psychological Horror · Horror · Adventure

Little Nightmares II
Shared: Adventure · Horror · Dark

SOMA
Shared: Horror · Psychological Horror · Atmospheric

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

Tiny Bunny
Shared: Horror · Psychological Horror · Dark

Little Nightmares
Shared: Horror · Adventure · Atmospheric

Darkwood
Shared: Horror · Adventure · Psychological Horror

Little Misfortune
Shared: Psychological Horror · Adventure · Choices Matter

Poppy Playtime
Shared: Horror · Psychological Horror · Dark

Outlast
Shared: Horror · Psychological Horror · Atmospheric

Five Nights at Freddy's
Shared: Horror · Psychological Horror · Point & Click

Endacopia
Shared: Adventure · Horror · Psychological Horror

Slay the Princess — The Pristine Cut
Shared: Psychological Horror · Choices Matter · Horror

Detention
Shared: Horror · Psychological Horror · Adventure

The Test
Shared: Simulation · Psychological Horror · Choices Matter

SILENT HILL 2
Shared: Horror · Psychological Horror · Atmospheric

Outlast 2
Shared: Horror · Psychological Horror · Dark

Death and Taxes
Shared: Simulation · Choices Matter · Psychological Horror

Bad Dream: Coma
Shared: Adventure · Horror · Point & Click

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

Rusty Lake Paradise
Shared: Adventure · Psychological Horror · Horror

MiSide
Shared: Psychological Horror · Horror · Story Rich

The Cat Lady
Shared: Horror · Adventure · Psychological Horror