Games like Blanky
Games like Blanky include Celeste, SANABI, Super Meat Boy, Jump King, and VVVVVV. We matched them by the tags players give Blanky on Steam (Adventure, Platformer, 2D Platformer, Precision Platformer, and 2D): closest matches first, and among equally close ones the better-known games.

Celeste
Shared: Precision Platformer · Platformer · 2D Platformer

SANABI
Shared: Adventure · 2D Platformer · Pixel Graphics

Super Meat Boy
Shared: Platformer · Precision Platformer · 2D Platformer

Jump King
Shared: Precision Platformer · Adventure · Platformer

VVVVVV
Shared: Platformer · Precision Platformer · 2D Platformer

Rain World
Shared: Platformer · Atmospheric · Pixel Graphics

Ori and the Will of the Wisps
Shared: Platformer · Adventure · Atmospheric

Hollow Knight
Shared: Platformer · 2D · Adventure

Webbed
Shared: 2D Platformer · Cute · Pixel Graphics

Owlboy
Shared: Adventure · Platformer · Pixel Graphics

Downwell
Shared: Precision Platformer · Platformer · Pixel Graphics

Katana ZERO
Shared: Platformer · Pixel Graphics · 2D Platformer

OneShot
Shared: Pixel Graphics · Cute · Adventure

Finding Paradise
Shared: Adventure · 2D · Pixel Graphics

Neva
Shared: Adventure · Platformer · Atmospheric

Shovel Knight: Treasure Trove
Shared: Platformer · Adventure · Pixel Graphics

Sonic Origins
Shared: Adventure · 2D Platformer · Platformer

Impostor Factory
Shared: Adventure · 2D · Pixel Graphics

Dead Cells
Shared: Adventure · 2D · Pixel Graphics

The End Is Nigh
Shared: Platformer · Precision Platformer · Adventure

To the Moon
Shared: Adventure · Pixel Graphics · Emotional

Pizza Tower
Shared: 2D Platformer · Platformer · Pixel Graphics

MO:Astray
Shared: Adventure · Platformer · Pixel Graphics

Lone Fungus
Shared: Adventure · 2D Platformer · Platformer