Games like Super Slime Boy
Games like Super Slime Boy include LIMBO, Planet of Lana, Braid, INSIDE, and The Pedestrian. We matched them by the tags players give Super Slime Boy on Steam (Side Scroller, 2D Platformer, Puzzle Platformer, Puzzle, and Platformer): closest matches first, and among equally close ones the better-known games.

LIMBO
Shared: Puzzle Platformer · Puzzle · Platformer

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

Braid
Shared: Puzzle Platformer · 2D Platformer · Puzzle

INSIDE
Shared: Puzzle Platformer · Puzzle · 2D Platformer

The Pedestrian
Shared: Puzzle Platformer · Side Scroller · Puzzle

Öoo
Shared: Puzzle Platformer · 2D Platformer · Puzzle

Trine 2: Complete Story
Shared: Puzzle Platformer · 2D Platformer · Platformer

Webbed
Shared: 2D Platformer · Puzzle Platformer · Platformer

Portal 2
Shared: Puzzle · Platformer · Puzzle Platformer

Mark of the Ninja
Shared: Platformer · Side Scroller · Action

Defy Gravity Extended
Shared: Puzzle Platformer · Platformer · Puzzle

Max: The Curse of Brotherhood
Shared: Puzzle Platformer · Puzzle · Platformer

SANABI
Shared: 2D Platformer · Action · 2D

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

Rogue Legacy 2
Shared: Arcade · Platformer · Action

Creepy Tale
Shared: Puzzle Platformer · 2D Platformer · Puzzle

Oddworld: New 'n' Tasty
Shared: Puzzle Platformer · Platformer · Puzzle

Seen
Shared: Puzzle · Platformer · Puzzle Platformer

ElecHead
Shared: Puzzle Platformer · Puzzle · Platformer

ANIMAL WELL
Shared: Puzzle · Puzzle Platformer · Platformer

Unravel
Shared: Puzzle · Action · Platformer

Mind Over Magnet
Shared: Puzzle Platformer · Puzzle · 2D Platformer

Deadlight
Shared: Platformer · Side Scroller · Action

Celeste
Shared: 2D Platformer · Platformer · 2D