PlayfeedGames like Galactic Missile Defense
by Black Sheep Games
Galactic Missile Defense is a 2D sci-fi shooter and tower defense: protect earth, unleash destruction and upgrade bases. X-Morph: Defense and Planetary Defense: An Orbital Turret Defense System play most like Galactic Missile Defense. Of the 12 closest games below, most share its tower defense and aliens.
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Ranked by how similar the games actually are, not by sales. Released and Price are remembered for next time.
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Planetary Defense: An Orbital Turret Defense System
Aug 11, 2022 · SODEC Games
Both: Tower Defense · Shooter
Top-down 2D sci-fi space shooter tower defense, pixel graphics. Defend planet, build turrets and customize munitions.
ActionTower DefenseTop-Down ShooterSpaceShooterStrategyPixel Graphics2DHand-drawnTop-DownDefense Grid: The Awakening
Dec 8, 2008 · Hidden Path Entertainment
Both: Tower Defense · Aliens
Isometric 3D sci-fi tower defense. Building fortification towers, defending against alien hordes and upgrading towers.
Tower DefenseStrategySci-fiSingleplayerIndieAliensFuturisticAddictiveTouch-FriendlyReplay Value👍 4,531Revenge of the Titans
Mar 16, 2011 · Puppygames
Both: Tower Defense
Top-down 2D sci-fi tower defense, real-time strategy, pixel graphics, retro. Building defensive positions, mining resources and researching technology.
Tower DefenseStrategyIndieActionSci-fiSingleplayerPixel GraphicsRetro2DDifficult👍 665Get Off My Lawn!
Nov 11, 2014 · Digital Leisure Inc.
Both: Shooter · Tower Defense · Aliens
Third-person 2D sci-fi arcade tower defense shooter, cartoonish caricature. Shooting aliens, defending lawn and upgrading weaponry.
Free to PlayCasualIndieShooterTower DefenseSingleplayerAliensMultiplayerArcadeAction