Games like Musasabi
Games like Musasabi include Celeste, Super Meat Boy, SANABI, Webbed, and Thomas Was Alone. We matched them by the tags players give Musasabi on Steam (Side Scroller, Precision Platformer, 2D Platformer, Puzzle Platformer, and Platformer): closest matches first, and among equally close ones the better-known games.

Celeste
Shared: Precision Platformer · 2D Platformer · Platformer

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

SANABI
Shared: 2D Platformer · Action · Pixel Graphics

Webbed
Shared: 2D Platformer · Puzzle Platformer · Cute

Thomas Was Alone
Shared: Side Scroller · Platformer · 2D Platformer

Geometry Dash
Shared: Precision Platformer · 2D · Platformer

Sonic Mania
Shared: Platformer · 2D · Side Scroller

VVVVVV
Shared: Precision Platformer · 2D Platformer · Platformer

Downwell
Shared: Precision Platformer · Platformer · 2D Platformer

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

Momodora: Reverie Under The Moonlight
Shared: Side Scroller · 2D Platformer · 2D

Shovel Knight: Treasure Trove
Shared: Platformer · 2D · Pixel Graphics

Jump King
Shared: Precision Platformer · Platformer · 2D

Broforce
Shared: Action · 2D · Platformer

Sonic Origins
Shared: 2D Platformer · Action · Platformer

Planet of Lana
Shared: Puzzle Platformer · 2D Platformer · Action

Katana ZERO
Shared: Platformer · 2D Platformer · Action

LIMBO
Shared: Puzzle Platformer · Platformer · 2D

Skul: The Hero Slayer
Shared: Action · 2D · Platformer

NINJA GAIDEN: Ragebound
Shared: 2D Platformer · Side Scroller · Platformer

Gravity Circuit
Shared: Platformer · Action · 2D Platformer

Vibrant Venture
Shared: Side Scroller · Platformer · 2D Platformer

Lone Fungus
Shared: 2D Platformer · Precision Platformer · Platformer

The Messenger
Shared: Platformer · 2D · 2D Platformer