Games like Catto Boi Collection
Games like Catto Boi Collection include OneShot, OMORI, MiSide, Little Misfortune, and Undertale. We matched them by the tags players give Catto Boi Collection on Steam (Indie, Psychological Horror, Horror, Adventure, and Singleplayer): closest matches first, and among equally close ones the better-known games.

OneShot
Shared: Indie · Cute · Pixel Graphics

OMORI
Shared: Psychological Horror · Indie · Horror

MiSide
Shared: Psychological Horror · Horror · Cute

Little Misfortune
Shared: Indie · Psychological Horror · Adventure

Undertale
Shared: Indie · Singleplayer · Choices Matter

Changed
Shared: Psychological Horror · Cute · Indie

DISTRAINT: Deluxe Edition
Shared: Indie · Psychological Horror · Horror

Celeste
Shared: Indie · Pixel Graphics · Platformer

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

Little Nightmares
Shared: Horror · Adventure · Singleplayer

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

Little Nightmares II
Shared: Horror · Adventure · Singleplayer

Hollow Knight
Shared: Indie · Platformer · Singleplayer

KinitoPET
Shared: Psychological Horror · Horror · Indie

Getting Over It with Bennett Foddy
Shared: Psychological Horror · Singleplayer · Horror

Ib
Shared: Horror · Indie · Psychological Horror

The Witch's House MV
Shared: Horror · Indie · Psychological Horror

SANABI
Shared: Adventure · Indie · Pixel Graphics

Jump King
Shared: Psychological Horror · Indie · Adventure

Tales of the Black Forest
Shared: Indie · Horror · Adventure

NEEDY STREAMER OVERLOAD
Shared: Psychological Horror · Cute · Pixel Graphics

Fran Bow
Shared: Psychological Horror · Horror · Indie

Milk outside a bag of milk outside a bag of milk
Shared: Psychological Horror · Indie · Pixel Graphics

The Test
Shared: Psychological Horror · Singleplayer · Pixel Graphics