Games like Sibling Souls
Games like Sibling Souls include Slay the Princess — The Pristine Cut, Homicipher, Cabernet, The Test, and Tiny Bunny. We matched them by the tags players give Sibling Souls on Steam (Choose Your Own Adventure, Horror, Otome, Vampires, and Choices Matter): closest matches first, and among equally close ones the better-known games.

Slay the Princess — The Pristine Cut
Shared: Horror · Choices Matter · Choose Your Own Adventure

Homicipher
Shared: Horror · Otome · Visual Novel

Cabernet
Shared: Vampires · Horror · Choices Matter

The Test
Shared: Choose Your Own Adventure · Psychological Horror · Choices Matter

Tiny Bunny
Shared: Horror · Visual Novel · Psychological Horror

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

The Test: Hypothesis Rising
Shared: Horror · Choose Your Own Adventure · Choices Matter

Scarlet Hollow
Shared: Horror · Choices Matter · Visual Novel

Folie Fatale
Shared: Otome · Choose Your Own Adventure · Female Protagonist

私のリアルは充実しすぎている フルボイス版
Shared: Otome · Visual Novel · Female Protagonist

Amnesia™: Memories
Shared: Otome · Visual Novel · Female Protagonist

The Casting of Frank Stone™
Shared: Horror · Choices Matter · Choose Your Own Adventure

Little Misfortune
Shared: Psychological Horror · Horror · Choices Matter

The Coffin of Andy and Leyley
Shared: Psychological Horror · Choices Matter · Visual Novel

The Wolf Among Us
Shared: Choose Your Own Adventure · Choices Matter · Story Rich

Far Away
Shared: Choices Matter · Choose Your Own Adventure · Visual Novel

I Wani Hug that Gator!
Shared: Choose Your Own Adventure · Visual Novel · Choices Matter

Suzerain
Shared: Choose Your Own Adventure · Visual Novel · Choices Matter

Life is Strange: True Colors
Shared: Choices Matter · Choose Your Own Adventure · Female Protagonist

LoveChoice
Shared: Choices Matter · Romance · Visual Novel

Dispatch
Shared: Choices Matter · Choose Your Own Adventure · Story Rich

Dagon: by H. P. Lovecraft
Shared: Horror · Visual Novel · Psychological Horror

The Test: Final Revelation
Shared: Choose Your Own Adventure · Choices Matter · Horror

While We Wait Here
Shared: Choose Your Own Adventure · Horror · Psychological Horror