Games like The True Slime King
Games like The True Slime King include Celeste, Geometry Dash, Super Meat Boy, I wanna be the Creator, and Jump King. We matched them by the tags players give The True Slime King on Steam (Precision Platformer, Difficult, Parkour, Puzzle, and Puzzle Platformer): closest matches first, and among equally close ones the better-known games.
Celeste
Shared: Precision Platformer · Difficult · 2D Platformer
Geometry Dash
Shared: Difficult · Level Editor · Precision Platformer
Super Meat Boy
Shared: Precision Platformer · Difficult · Platformer
I wanna be the Creator
Shared: Level Editor · Difficult · Precision Platformer
Jump King
Shared: Difficult · Precision Platformer · Platformer
VVVVVV
Shared: Precision Platformer · Difficult · Platformer
N++ (NPLUSPLUS)
Shared: Precision Platformer · Difficult · Parkour
LIMBO
Shared: Puzzle Platformer · Puzzle · Platformer
SANABI
Shared: 2D Platformer · Difficult · Pixel Graphics
Downwell
Shared: Precision Platformer · Difficult · Platformer
Shovel Knight: Treasure Trove
Shared: Difficult · Platformer · Retro
SEUM: Speedrunners from Hell
Shared: Precision Platformer · Parkour · Difficult
Planet of Lana
Shared: Puzzle Platformer · Puzzle · 2D Platformer
Blasphemous 2
Shared: Difficult · Side Scroller · 2D Platformer
Braid
Shared: Puzzle · Puzzle Platformer · 2D Platformer
Out There Somewhere
Shared: Puzzle · Platformer · Adventure
Dungeon Escape
Shared: Precision Platformer · Difficult · 2D Platformer
Leap Year
Shared: Precision Platformer · Puzzle Platformer · Puzzle
The End Is Nigh
Shared: Precision Platformer · Difficult · Platformer
Squishy the Suicidal Pig
Shared: Puzzle · Difficult · Puzzle Platformer
Pogostuck: Rage With Your Friends
Shared: Difficult · Precision Platformer · Platformer
Electronic Super Joy
Shared: Difficult · Precision Platformer · Platformer
Super Meat Boy Forever
Shared: Difficult · Precision Platformer · Platformer
NINJA GAIDEN: Ragebound
Shared: 2D Platformer · Platformer · Side Scroller