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

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

Celeste
Shared: Precision Platformer · Difficult · 2D Platformer

Geometry Dash
Shared: Difficult · Level Editor · Precision Platformer

VVVVVV
Shared: Precision Platformer · 2D Platformer · Platformer

Jump King
Shared: Precision Platformer · Difficult · Platformer

SANABI
Shared: 2D Platformer · Action · Pixel Graphics

Downwell
Shared: Precision Platformer · 2D Platformer · Platformer

Katana ZERO
Shared: 2D Platformer · Platformer · Action

Hollow Knight
Shared: Difficult · Platformer · 2D

Ambidextro
Shared: Precision Platformer · 2D Platformer · Platformer

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

I wanna be the Creator
Shared: Level Editor · Platformer · Precision Platformer

Pizza Tower
Shared: 2D Platformer · Platformer · Indie

Hollow Knight: Silksong
Shared: Difficult · Platformer · 2D

Rain World
Shared: Difficult · Platformer · 2D Platformer

Dungeon Escape
Shared: Precision Platformer · 2D Platformer · Difficult

Super Meat Boy Forever
Shared: Difficult · Precision Platformer · Platformer

Cuphead
Shared: Difficult · Platformer · 2D

N++ (NPLUSPLUS)
Shared: Precision Platformer · 2D Platformer · Difficult

Alex Kidd in Miracle World DX
Shared: Precision Platformer · 2D Platformer · Difficult

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

Spelunky 2
Shared: 2D Platformer · Difficult · Platformer

Gravity Circuit
Shared: Platformer · 2D Platformer · 2D

Shovel Knight: Treasure Trove
Shared: Platformer · Difficult · 2D