Defend Earth from an alien invasion as a heroic defender wielding an energy cannon. Quickly stop the advance of the Hummer and its minions to preserve global peace.
Space Defense 3D by Ngoc toan Nguyen






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With an average user rating of 4.3★, the space defense 3d category is one of the App Store's strongest. Browse all 170+ apps and games we track, sorted so the most loved ones surface first.






Defend Earth from an alien invasion as a heroic defender wielding an energy cannon. Quickly stop the advance of the Hummer and its minions to preserve global peace.






Engage in epic space combat strategy by building and defending your base. Command a diverse army of ground and air units, gather resources, and battle millions of players worldwide to dominate the galaxy. Features stunning 3D graphics and a challenging campaign mode.






Pilot a lone spaceship to defend Earth from relentless alien swarms in this classic space shooter. Upgrade your weapons and skills to overcome increasingly difficult challenges across numerous levels and intense boss battles.


Defend Earth from alien invaders in this idle tower defense game. Build diverse turrets, strategize your defense, and power up your character with unique skills and weapons. Collect resources and take on global challenges to protect the planet.


Engage in real-time strategy to defend your base against relentless enemy waves. Build, upgrade, and deploy a variety of units with precise timing to survive epic battles in space. Master strategic decisions to overcome increasingly difficult challenges.


Build and command your own space station and fleet in a chaotic galaxy. Forge alliances, explore new worlds, and engage in strategic space battles to shape the future of the sector. Your decisions will determine the fate of the galaxy.


Defend Earth from alien invaders by strategically deploying and upgrading cannons and special weapons. This addictive game challenges your judgment and quick thinking to protect your bunker from increasingly powerful enemies.


Engage in thrilling space combat with realistic graphics and sound. Explore diverse environments, collect and upgrade star fighters, and battle alien invaders. Features include PvP, turret defense, and idle modes for continuous progression.


Engage in tactical defense battles against encroaching dark forces. Combine strategic command with superhero abilities to defend your world across diverse terrains and utilize a variety of powerful weapons.


Defend your home planet in this roguelike tower defense game. Build and upgrade defenses to fend off alien invaders. Experience deep strategy with unique playthroughs and unlockable sentinels.


Defend your space fortress against alien invasions in this vibrant defense game. Strategically build your base, deploy a variety of weapons and traps, and customize enemy paths to survive hundreds of waves. Compete for high scores in an online hall of fame.


Command a galactic defense to protect your space tower from alien invaders. Strategically upgrade your tower's abilities and weapons to withstand relentless waves of enemies and defeat powerful bosses. Enjoy idle gameplay with ample rewards, even while offline.


Defend your space outpost from relentless enemy waves in this idle tower defense game. Upgrade your warship, deploy powerful towers, and unlock advanced weapons to survive galactic battles. Conquer star systems and climb leaderboards in an immersive sci-fi experience.


Pilot your spaceship through the galaxy to defend your planet from an alien invasion. Engage in fast-paced arcade-style combat, utilizing barrel rolls and automatic firing. Collect power-ups and devastating bombs to defeat increasingly dangerous alien forces in stunning 3D.


Build and command your own space colony, construct a powerful fleet, and engage in epic interstellar warfare. Explore a vast universe, battle pirates or other players, and forge alliances to achieve galactic dominance.


Explore unique destruction mechanics in a space-themed sandbox. Break planets into pieces, control spaceships in epic battles, or design your own celestial bodies with custom physics.


Engage in an adventurous competitive mobile game where you conquer planets by drawing lines. Experience exciting gameplay with multi-level challenges and fantasy props to create effective combinations for a high-quality gaming experience.


Engage in strategic orbital tower defense with minimalist visuals and dynamic music. Place, merge, and upgrade weapons to defend satellites across various planets and moons from relentless enemy waves. Collect diverse weapons and trait cards to build your ultimate defense strategy.


Pilot a star fighter, upgrade your ship, and engage in thrilling 3D space combat to free the galaxy. Choose your difficulty, unlock new ships and weapons, and climb the ranks of the Space Navy.


Engage in thrilling 3D space combat across more than 40 missions in diverse locations. Hunt enemies, mine asteroids for resources, and craft new ships. Explore, bounty hunt, and upgrade your arsenal in this immersive sci-fi shooter.