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Protect Earth from incoming alien missiles in Galactic Missile Defense, a thrilling space tower defense game! Manage 3 secret anti-missile bases and strategically upgrade them with powerful weapons and boosters. As you progress through increasingly challenging levels, quick decision-making becomes crucial to defend against waves of alien invaders. Experiment with different weapon combinations and upgrades to maximize your firepower and achieve the highest score! Upgrade your defenses for more effects, unlock new weapons and conquer the cosmos. Tap on the screen to shoot towards a direction to destroy all visible aliens and advance. Learn from in-game instructions for optimal performance and unlocks. Become the ultimate space defender! Galactic Missile Defense, space tower defense, TD game, alien defense, missile defense, strategy game, tower defense, arcade game, shoot missiles, space shooter, high score, defend earth, upgrade weapons, alien invasion, mobile game, defense strategy, space battle, shooting game