Games like Style Over Substance
Games like Style Over Substance include Tiny Bunny, No, I'm not a Human, Zero Escape: The Nonary Games, The Coffin of Andy and Leyley, and The Test. We matched them by the tags players give Style Over Substance on Steam (Escape Room, Visual Novel, Psychological Horror, Horror, and Adventure): closest matches first, and among equally close ones the better-known games.

Tiny Bunny
Shared: Visual Novel · Horror · Psychological Horror

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

Zero Escape: The Nonary Games
Shared: Visual Novel · Psychological Horror · Story Rich

The Coffin of Andy and Leyley
Shared: Visual Novel · Psychological Horror · Multiple Endings

The Test
Shared: Psychological Horror · Multiple Endings · Story Rich

Zero Escape: Zero Time Dilemma
Shared: Visual Novel · Psychological Horror · Story Rich

Raging Loop
Shared: Visual Novel · Psychological Horror · Adventure

The Casting of Frank Stone™
Shared: Horror · Choices Matter · Multiple Endings

Milk inside a bag of milk inside a bag of milk
Shared: Visual Novel · Psychological Horror · Horror

SILENT HILL 2
Shared: Psychological Horror · Horror · Story Rich

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

Return to Shironagasu Island
Shared: Visual Novel · Adventure · Horror

STEINS;GATE
Shared: Visual Novel · Story Rich · Multiple Endings

Little Nightmares II
Shared: Horror · Adventure · Psychological Horror

The Wolf Among Us
Shared: Adventure · Visual Novel · Story Rich

The Test: Hypothesis Rising
Shared: Visual Novel · Horror · Choices Matter

Milk outside a bag of milk outside a bag of milk
Shared: Visual Novel · Psychological Horror · Story Rich

Sally Face - Episode One
Shared: Psychological Horror · Horror · Story Rich

Mouthwashing
Shared: Psychological Horror · Horror · Story Rich

Scarlet Hollow
Shared: Visual Novel · Psychological Horror · Horror

Danganronpa 2: Goodbye Despair
Shared: Visual Novel · Psychological Horror · Story Rich

The House in Fata Morgana
Shared: Visual Novel · Psychological Horror · Story Rich

Oxenfree
Shared: Choices Matter · Story Rich · Adventure

Danganronpa: Trigger Happy Havoc
Shared: Visual Novel · Psychological Horror · Story Rich