Games like Galactic Missile Defense
Games like Galactic Missile Defense include Bit Blaster XL, Let Them Come, Planes, Bullets and Vodka, LUFTRAUSERS, and Plants vs. Zombies GOTY Edition. We matched them by the tags players give Galactic Missile Defense on Steam (Aliens, Shoot 'Em Up, Arcade, Tower Defense, and Shooter): closest matches first, and among equally close ones the better-known games.

Bit Blaster XL
Shared: Shoot 'Em Up · Arcade · Shooter

Let Them Come
Shared: Tower Defense · Aliens · Action

Planes, Bullets and Vodka
Shared: Shoot 'Em Up · Arcade · Action

LUFTRAUSERS
Shared: Arcade · Shoot 'Em Up · 2D

Plants vs. Zombies GOTY Edition
Shared: Tower Defense · Strategy · 2D

Nova Drift
Shared: Shoot 'Em Up · Arcade · Shooter

Kingdom Rush - Tower Defense
Shared: Tower Defense · Strategy · 2D

METAL SLUG
Shared: Arcade · Shoot 'Em Up · 2D

PUBG: BATTLEGROUNDS
Shared: Shooter · Survival · Action

PAC-MAN™ Championship Edition DX+
Shared: Arcade · Action · 2D

ShellShock Live
Shared: 2D · Strategy · Shooter

Sanctum 2
Shared: Tower Defense · Strategy · Action

Bloons TD 6
Shared: Tower Defense · Strategy · 2D

Star Saviors
Shared: Shoot 'Em Up · Arcade · Action

X-Morph: Defense
Shared: Tower Defense · Strategy · Aliens

Alex Jones: NWO Wars
Shared: Arcade · Shoot 'Em Up · Shooter

ZeroRanger
Shared: Shoot 'Em Up · Arcade · Action

UFO 50
Shared: Arcade · 2D · Action

METAL SLUG X
Shared: Arcade · Shoot 'Em Up · Action

Timberman
Shared: Arcade · 2D · Action

Huntdown
Shared: Shooter · Shoot 'Em Up · Action

Bloons TD 5
Shared: Tower Defense · Strategy · Action

Cyberhunt
Shared: Shoot 'Em Up · Arcade · Action

Savant - Ascent
Shared: Shoot 'Em Up · Action · Arcade