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

Broforce
Shared: Action · Pixel Graphics · Platformer

Huntdown
Shared: Action · Pixel Graphics · Shooter

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

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

Blazing Chrome
Shared: Action · Retro · Pixel Graphics

Vampire Survivors
Shared: Pixel Graphics · Indie · 2D

Cuphead
Shared: Platformer · Indie · Local Co-Op

Katana ZERO
Shared: Action · Pixel Graphics · Platformer

Bleed
Shared: Action · Indie · Platformer

METAL SLUG 3
Shared: Action · Retro · Arcade

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

SANABI
Shared: Action · Pixel Graphics · Indie

Sonic Mania
Shared: Platformer · Retro · 2D

METAL SLUG
Shared: Action · 2D · Arcade

Rogue Legacy
Shared: Platformer · Indie · Action

Duck Game
Shared: Action · Pixel Graphics · Platformer

The Messenger
Shared: Platformer · Retro · Pixel Graphics

Celeste
Shared: Pixel Graphics · Indie · Platformer

UFO 50
Shared: Indie · Action · Pixel Graphics

Rogue Legacy 2
Shared: Action · Platformer · Indie

Super Meat Boy
Shared: Platformer · Indie · Pixel Graphics

Out There Somewhere
Shared: Platformer · Indie · Pixel Graphics

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

LUFTRAUSERS
Shared: Indie · Action · Pixel Graphics