Games like Alien Scumbags
Games like Alien Scumbags include Broforce, CARRION, SANABI, Katana ZERO, and Huntdown. We matched them by the tags players give Alien Scumbags on Steam (Action, Pixel Graphics, Gore, 2D Platformer, and Side Scroller): closest matches first, and among equally close ones the better-known games.

Broforce
Shared: Action · Pixel Graphics · Side Scroller

CARRION
Shared: Gore · Pixel Graphics · Action

SANABI
Shared: Pixel Graphics · Action · 2D Platformer

Katana ZERO
Shared: Action · Pixel Graphics · 2D Platformer

Huntdown
Shared: Pixel Graphics · Action · Side Scroller

Blasphemous
Shared: Pixel Graphics · Gore · Action

Alex Jones: NWO Wars
Shared: Action · 2D Platformer · Arcade

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

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

METAL SLUG
Shared: Action · Side Scroller · Arcade

Valfaris
Shared: Action · Gore · Pixel Graphics

Guns, Gore & Cannoli
Shared: Action · Side Scroller · Gore

Terminator 2D: NO FATE
Shared: Pixel Graphics · 2D Platformer · Action

MO:Astray
Shared: Action · Pixel Graphics · Gore

Angry Video Game Nerd I & II Deluxe
Shared: 2D Platformer · Side Scroller · Gore

Sonic Origins
Shared: Action · 2D Platformer · Pixel Graphics

Iron Meat
Shared: Side Scroller · 2D Platformer · Action

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

Pizza Tower
Shared: 2D Platformer · Pixel Graphics · Action

Gravity Circuit
Shared: Action · Pixel Graphics · 2D Platformer

Guns, Gore and Cannoli 2
Shared: Action · Side Scroller · Gore

Momodora: Reverie Under The Moonlight
Shared: Pixel Graphics · 2D Platformer · Side Scroller

Skul: The Hero Slayer
Shared: Action · Pixel Graphics · Side Scroller

Smilemo
Shared: Action · Pixel Graphics · 2D Platformer