Games like Alien Zombie Megadeath
Games like Alien Zombie Megadeath include Deadlight, Rogue Legacy 2, Rogue Legacy, Broforce, and Skul: The Hero Slayer. We matched them by the tags players give Alien Zombie Megadeath on Steam (Action, Indie, Platformer, Zombies, and Arcade): closest matches first, and among equally close ones the better-known games.

Deadlight
Shared: Action · Platformer · Zombies

Rogue Legacy 2
Shared: Action · Platformer · Arcade

Rogue Legacy
Shared: Platformer · Indie · Action

Broforce
Shared: Action · Platformer · Indie

Skul: The Hero Slayer
Shared: Action · Indie · Platformer

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

Katana ZERO
Shared: Action · Platformer · Indie

Guns, Gore & Cannoli
Shared: Action · Zombies · Indie

Spelunky
Shared: Platformer · Indie · Action

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

Zombotron
Shared: Action · Indie · Zombies

Hollow Knight
Shared: Platformer · Indie · Action

Downwell
Shared: Indie · Platformer · Action

My Friend Pedro
Shared: Action · Indie · Platformer

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

Streets of Rage 4
Shared: Action · Indie · Arcade

Volgarr the Viking
Shared: Action · Platformer · Indie

Mark of the Ninja
Shared: Platformer · Indie · Action

Defy Gravity Extended
Shared: Indie · Platformer · Action

UFO 50
Shared: Indie · Action · Arcade

Project Wingman
Shared: Action · Indie · Arcade

Nation Red
Shared: Action · Indie · Zombies

Bleed
Shared: Action · Indie · Platformer