Games like Gun Mage
Games like Gun Mage include Broforce, Brawlhalla, Awesomenauts, Katana ZERO, and SpeedRunners. We matched them by the tags players give Gun Mage on Steam (Indie, Action, 2D Platformer, Platformer, and 2D): closest matches first, and among equally close ones the better-known games.

Broforce
Shared: Action · Indie · 2D

Brawlhalla
Shared: 2D Platformer · Multiplayer · Platformer

Awesomenauts
Shared: Action · Indie · Platformer

Katana ZERO
Shared: Action · Indie · Platformer

SpeedRunners
Shared: Indie · Multiplayer · Action

Duck Game
Shared: Action · Multiplayer · Indie

20XX
Shared: Action · Platformer · 2D Platformer

Move or Die
Shared: Action · Indie · Multiplayer

ROUNDS
Shared: Action · Multiplayer · Indie

Pizza Tower
Shared: Indie · 2D Platformer · Platformer

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

Rivals of Aether II
Shared: Indie · Action · Multiplayer

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

BattleBlock Theater®
Shared: Platformer · 2D · Multiplayer

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

Spelunky 2
Shared: 2D Platformer · Platformer · Indie

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

King Arthur's Gold
Shared: Action · Indie · 2D

SANABI
Shared: Action · 2D Platformer · Indie

Stick Fight: The Game
Shared: Action · Multiplayer · PvP

Terraria
Shared: 2D · Multiplayer · Indie

Rogue Legacy
Shared: Indie · Platformer · Action

Cuphead
Shared: Platformer · Indie · 2D

Rivals of Aether
Shared: Indie · Multiplayer · Platformer