179+ iOS apps & games curated and reviewed
Out of 179+ space defense app apps on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
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.
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.
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 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.
Engage in intense galactic arcade battles to defend your starbase from alien invaders. Upgrade your fleet, build a powerful military force, and conquer the universe. Explore, build, and fight your way to becoming a legendary space hero.
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.
Defend planetary bases from raiders in a futuristic space war. Pilot advanced robots, tanks, and ships, utilizing a variety of weapons and upgrades to destroy enemy forces across different worlds. Complete challenging missions to earn rewards and become a top defender.
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.
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.
Embark on an epic space adventure across numerous solar systems and planets. Discover new technologies, customize your fleet with unique spaceship styles, and strive to rule the galaxy in this expansive exploration game.
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.
Receive notifications when the International Space Station is visible from your location. Explore real-time 2D and 3D views, augmented reality tracking, and access NASA resources. Experience the wonder of human presence in orbit.
Assemble a squad of unique Space Minions to defend your base against relentless enemy waves. Strategize unit placement and upgrade your team and defenses to overcome increasingly challenging levels in this tactical base defense game.
Pilot a starship in an intense arcade shooter to defend the galaxy from alien invaders. Engage in challenging campaigns, battle epic bosses, and compete with other players online. Your mission is to save humanity from an intergalactic war.
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.
Engage in a classic tower defense experience with strategic gameplay and action-packed battles. Explore diverse campaigns, challenging maps, and unique towers to defeat various enemies across multiple world themes. Enjoy a highly-rated defense game with regular updates.
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.
Track rocket launches globally with real-time schedules, live video feeds, and detailed mission information. Get notifications, add events to your calendar, and explore space-related articles. Discover launch sites and learn about space agencies and their missions.
Defend your airspace in an intense arcade shooter against an alien invasion. Engage in fast-paced, vertical ground-to-air combat with realistic visuals and a thrilling story. Perfect for quick bursts of action.