Games like Up, Little One
Games like Up, Little One include Celeste, Hollow Knight, Geometry Dash, Super Meat Boy, and Hollow Knight: Silksong. We matched them by the tags players give Up, Little One on Steam (Precision Platformer, Action, Difficult, Platformer, and 2D): closest matches first, and among equally close ones the better-known games.
Celeste
Shared: Precision Platformer · Difficult · Platformer
Hollow Knight
Shared: Platformer · Difficult · 2D
Geometry Dash
Shared: Difficult · Precision Platformer · 2D
Super Meat Boy
Shared: Precision Platformer · Difficult · Platformer
Hollow Knight: Silksong
Shared: Difficult · 2D · Platformer
Jump King
Shared: Precision Platformer · Difficult · Platformer
Rain World
Shared: Difficult · Atmospheric · Platformer
Nine Sols
Shared: Difficult · Action · Platformer
The End Is Nigh
Shared: Precision Platformer · Platformer · Difficult
Ori and the Will of the Wisps
Shared: Platformer · Action · Atmospheric
Skul: The Hero Slayer
Shared: Action · 2D · Indie
Cuphead
Shared: Difficult · Platformer · 2D
Super Meat Boy Forever
Shared: Action · Difficult · Precision Platformer
LIMBO
Shared: Platformer · Indie · 2D
VVVVVV
Shared: Precision Platformer · Platformer · Difficult
SANABI
Shared: Action · 2D · Platformer
Getting Over It with Bennett Foddy
Shared: Difficult · Platformer · Physics
Downwell
Shared: Precision Platformer · Platformer · Action
Salt and Sanctuary
Shared: Difficult · 2D · Action
Wings of Vi
Shared: Precision Platformer · Difficult · Platformer
BEEP
Shared: Platformer · 2D · Action
Electronic Super Joy
Shared: Platformer · Difficult · Action
A Difficult Game About Climbing
Shared: Difficult · Precision Platformer · Platformer
Katana ZERO
Shared: Action · Platformer · 2D