Games like Super Mustache
Games like Super Mustache include Shovel Knight: Treasure Trove, Out There Somewhere, Broforce, SANABI, and Skul: The Hero Slayer. We matched them by the tags players give Super Mustache on Steam (Indie, Adventure, Platformer, Action, and Casual): closest matches first, and among equally close ones the better-known games.

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

Out There Somewhere
Shared: Indie · Platformer · Adventure

Broforce
Shared: Action · Pixel Graphics · Platformer

SANABI
Shared: Action · Pixel Graphics · Adventure

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

UFO 50
Shared: Indie · Action · Pixel Graphics

FEZ
Shared: Indie · Platformer · Pixel Graphics

Celeste
Shared: Indie · Platformer · Pixel Graphics

MO:Astray
Shared: Indie · Adventure · Action

LIMBO
Shared: Indie · Platformer · Puzzle Platformer

Gato Roboto
Shared: Indie · Action · Adventure

Axiom Verge
Shared: Indie · Platformer · Pixel Graphics

Jump King
Shared: Indie · Adventure · Platformer

Sonic Mania
Shared: Platformer · Adventure · 2D

Owlboy
Shared: Adventure · Indie · Platformer

Sonic Origins
Shared: Adventure · Action · Platformer

Pikuniku
Shared: Indie · Adventure · Casual

Katana ZERO
Shared: Action · Pixel Graphics · Platformer

The Messenger
Shared: Platformer · Indie · Retro

Iconoclasts
Shared: Indie · Adventure · Pixel Graphics

Reventure
Shared: Indie · Adventure · Pixel Graphics

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

The Way
Shared: Adventure · Indie · Action

ANIMAL WELL
Shared: Platformer · Pixel Graphics · Puzzle Platformer