Games like Quest Eternal
Games like Quest Eternal include SANABI, Skul: The Hero Slayer, Celeste, Katana ZERO, and Shovel Knight: Treasure Trove. We matched them by the tags players give Quest Eternal on Steam (Action, 2D Platformer, Platformer, Side Scroller, and 2D): closest matches first, and among equally close ones the better-known games.

SANABI
Shared: Action · 2D Platformer · Pixel Graphics

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

Celeste
Shared: Platformer · 2D Platformer · Pixel Graphics

Katana ZERO
Shared: Action · Platformer · 2D Platformer

Shovel Knight: Treasure Trove
Shared: Platformer · Action · Pixel Graphics

Broforce
Shared: Action · 2D · Platformer

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

Pizza Tower
Shared: 2D Platformer · Platformer · Indie

Hollow Knight
Shared: Platformer · 2D · Indie

Gravity Circuit
Shared: Action · Platformer · 2D Platformer

Rogue Legacy
Shared: Platformer · Action · Indie

NINJA GAIDEN: Ragebound
Shared: Action · Platformer · 2D Platformer

Blasphemous 2
Shared: 2D Platformer · Side Scroller · Pixel Graphics

Mark of the Ninja
Shared: Platformer · Action · 2D

Owlboy
Shared: Platformer · Pixel Graphics · Indie

Webbed
Shared: 2D Platformer · Platformer · Pixel Graphics

Rain World
Shared: Platformer · Indie · Atmospheric

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

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

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

Deadlight
Shared: Action · Platformer · Indie

HOLY GRAIL for DUMMIES
Shared: 2D Platformer · Platformer · Action

Bloodstained: Curse of the Moon
Shared: Action · Platformer · 2D

Himno
Shared: Platformer · 2D · Pixel Graphics