Games like Gray Goo
Games like Gray Goo include Planes, Bullets and Vodka, Bit Blaster XL, Huntdown, Broforce, and UFO 50. We matched them by the tags players give Gray Goo on Steam (Casual, 2D, Retro, Pixel Graphics, and Space): closest matches first, and among equally close ones the better-known games.

Planes, Bullets and Vodka
Shared: Casual · Retro · 2D

Bit Blaster XL
Shared: 2D · Casual · Shoot 'Em Up

Huntdown
Shared: Pixel Graphics · 2D · Shooter

Broforce
Shared: 2D · Pixel Graphics · Action

UFO 50
Shared: Retro · Pixel Graphics · 2D

Cyberhunt
Shared: Casual · 2D · Pixel Graphics

Vampire Survivors
Shared: Pixel Graphics · 2D · Casual

Distant Space
Shared: Casual · Pixel Graphics · Space

Sonic Mania
Shared: 2D · Retro · Pixel Graphics

METAL SLUG
Shared: 2D · Arcade · Retro

Razortron 2000
Shared: Casual · Retro · 2D

Blazing Chrome
Shared: Retro · Pixel Graphics · 2D

Kung Fury: Street Rage - Ultimate Edition
Shared: Retro · Arcade · 2D

LUFTRAUSERS
Shared: 2D · Pixel Graphics · Arcade

Timberman
Shared: Casual · Pixel Graphics · 2D

METAL SLUG 3
Shared: Arcade · Retro · 2D

Teenage Mutant Ninja Turtles: Shredder's Revenge
Shared: Pixel Graphics · 2D · Side Scroller

METAL SLUG X
Shared: 2D · Arcade · Retro

MARVEL Cosmic Invasion
Shared: Pixel Graphics · Arcade · Retro

ARCADE GAME SERIES: GALAGA
Shared: Retro · 2D · Arcade

Shovel Knight: Treasure Trove
Shared: Retro · Pixel Graphics · 2D

Nodebuster
Shared: Casual · 2D · Arcade

ZeroRanger
Shared: Pixel Graphics · 2D · Shoot 'Em Up

Hotline Miami 2: Wrong Number
Shared: Pixel Graphics · Retro · Action

