Games like Eternum EX
Games like Eternum EX include Shovel Knight: Treasure Trove, Broforce, UFO 50, Skul: The Hero Slayer, and Katana ZERO. We matched them by the tags players give Eternum EX on Steam (Action, Indie, Platformer, Pixel Graphics, and Retro): closest matches first, and among equally close ones the better-known games.

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

Broforce
Shared: Action · Pixel Graphics · Platformer

UFO 50
Shared: Indie · Action · Pixel Graphics

Skul: The Hero Slayer
Shared: Action · Indie · Pixel Graphics

Katana ZERO
Shared: Action · Pixel Graphics · Platformer

Super Meat Boy
Shared: Platformer · Indie · Pixel Graphics

Celeste
Shared: Pixel Graphics · Indie · Platformer

SANABI
Shared: Action · Pixel Graphics · Indie

The Messenger
Shared: Platformer · Retro · Pixel Graphics

Downwell
Shared: Indie · Pixel Graphics · Platformer

Jump King
Shared: Indie · Pixel Graphics · Difficult

Bloodstained: Curse of the Moon
Shared: Action · Pixel Graphics · Platformer

Out There Somewhere
Shared: Platformer · Indie · Pixel Graphics

Volgarr the Viking
Shared: Action · Platformer · Indie

Cuphead
Shared: Platformer · Difficult · Indie

Hotline Miami
Shared: Action · Indie · Pixel Graphics

Hollow Knight
Shared: Platformer · Indie · Difficult

VVVVVV
Shared: Pixel Graphics · Platformer · Indie

Angry Video Game Nerd Adventures
Shared: Indie · Action · Platformer

Hotline Miami 2: Wrong Number
Shared: Action · Pixel Graphics · Indie

Risk of Rain (2013)
Shared: Indie · Action · Platformer

Rogue Legacy 2
Shared: Action · Platformer · Indie

Axiom Verge
Shared: Indie · Platformer · Pixel Graphics

Gato Roboto
Shared: Indie · Action · Pixel Graphics