Games like X Archetype
Games like X Archetype include Shovel Knight: Treasure Trove, Broforce, SANABI, Terraria, and Skul: The Hero Slayer. We matched them by the tags players give X Archetype on Steam (Action, Adventure, Platformer, Sandbox, and Side Scroller): closest matches first, and among equally close ones the better-known games.

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

Broforce
Shared: Action · Platformer · Pixel Graphics

SANABI
Shared: Action · Adventure · Pixel Graphics

Terraria
Shared: Sandbox · Adventure · 2D

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

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

ICEY
Shared: Action · Adventure · Side Scroller

Dungeon Munchies
Shared: Action · Adventure · Indie

Sonic Mania
Shared: Platformer · 2D · Adventure

Out There Somewhere
Shared: Platformer · Adventure · Pixel Graphics

Gato Roboto
Shared: Action · Adventure · Indie

Axiom Verge
Shared: Platformer · Action · Pixel Graphics

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

Freedom Planet
Shared: Action · Platformer · 2D

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

BlazBlue Entropy Effect
Shared: Action · Platformer · 2D

Hollow Knight
Shared: Platformer · 2D · Adventure

Jump King
Shared: Adventure · Platformer · Action

The Messenger
Shared: Platformer · Action · Pixel Graphics

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

Celeste
Shared: Platformer · Pixel Graphics · Indie

Monster Boy and the Cursed Kingdom
Shared: Action · Adventure · Platformer

Rogue Legacy
Shared: Platformer · Action · Indie

Deadlight
Shared: Action · Platformer · Adventure