Games like Super Toxicboy
Games like Super Toxicboy include Celeste, Jump King, Dust: An Elysian Tail, The End Is Nigh, and Hollow Knight. We matched them by the tags players give Super Toxicboy on Steam (Indie, Action, Adventure, Racing, and Platformer): closest matches first, and among equally close ones the better-known games.

Celeste
Shared: Indie · Precision Platformer · Platformer

Jump King
Shared: Indie · Adventure · Precision Platformer

Dust: An Elysian Tail
Shared: Action · Indie · Platformer

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

Hollow Knight
Shared: Platformer · Indie · Adventure

SpeedRunners
Shared: Indie · Racing · Action

Skul: The Hero Slayer
Shared: Indie · Action · Platformer

Deadlight
Shared: Action · Indie · Platformer

SANABI
Shared: Action · Adventure · Indie

Rogue Legacy 2
Shared: Action · Indie · Platformer

Pogostuck: Rage With Your Friends
Shared: Adventure · Action · Platformer

Super Meat Boy
Shared: Indie · Platformer · Precision Platformer

MO:Astray
Shared: Indie · Action · Adventure

Kao the Kangaroo: Round 2 (2003 re-release)
Shared: Adventure · Action · Platformer

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

Shovel Knight: Treasure Trove
Shared: Indie · Platformer · Adventure

Pumpkin Jack
Shared: Action · Adventure · Indie

Remnants of Naezith
Shared: Indie · Action · Precision Platformer

Downwell
Shared: Indie · Precision Platformer · Platformer

BEEP
Shared: Indie · Adventure · Platformer

Mark of the Ninja
Shared: Indie · Platformer · Action

I wanna be the Creator
Shared: Action · Adventure · Platformer

Hollow Knight: Silksong
Shared: Indie · Platformer · Adventure

Grand Theft Auto V Legacy
Shared: Action · Adventure · Racing