Games like Xargon Remake Ep.1
Games like Xargon Remake Ep.1 include Pizza Tower, SANABI, Katana ZERO, Super Meat Boy, and Hollow Knight. We matched them by the tags players give Xargon Remake Ep.1 on Steam (Action, Platformer, 2D Platformer, 2D, and 1990's): closest matches first, and among equally close ones the better-known games.

Pizza Tower
Shared: 2D Platformer · Platformer · Indie

SANABI
Shared: Action · 2D Platformer · 2D

Katana ZERO
Shared: Action · Platformer · 2D Platformer

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

Hollow Knight
Shared: Platformer · 2D · Singleplayer

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

Celeste
Shared: Platformer · 2D Platformer · Indie

Gravity Circuit
Shared: Action · Platformer · 2D

Dust: An Elysian Tail
Shared: Action · Platformer · 2D

Rogue Legacy
Shared: Platformer · Action · 2D

Hollow Knight: Silksong
Shared: 2D · Platformer · Indie

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

ANTONBLAST
Shared: Action · 2D Platformer · 2D

SHINOBI: Art of Vengeance
Shared: Action · Platformer · 2D Platformer

The Messenger
Shared: Platformer · 2D · Action

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

BlazBlue Entropy Effect
Shared: Action · 2D · Platformer

F.I.S.T.: Forged In Shadow Torch
Shared: Platformer · Action · 2D Platformer

Rogue Legacy 2
Shared: Platformer · Action · Indie

20XX
Shared: Platformer · Action · 2D Platformer

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

Broforce
Shared: Action · 2D · Platformer

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

VVVVVV
Shared: Platformer · 2D Platformer · Indie