Engage in a classic side-scrolling shoot 'em up experience. Pilot a planetary freedom fighter through 8 levels, blasting waves of enemies and defeating bosses. Collect power-ups and enjoy humorous dialogue between battles.






99+ iOS apps & games curated and reviewed
If you already know Defender of Planet Earth, this is the deeper bench. 99+ defender of planet earth apps and games for iPhone, all reviewed and ranked by user rating, recency, and download trend as of June 2026.






Engage in a classic side-scrolling shoot 'em up experience. Pilot a planetary freedom fighter through 8 levels, blasting waves of enemies and defeating bosses. Collect power-ups and enjoy humorous dialogue between battles.






Protect Earth from incoming asteroids using simple one-touch controls. Aim for a high score in this endless arcade game where you must destroy threats before they reach the planet.






Defend Earth from a massive alien invasion in this sci-fi multiplayer strategy game. Build your base, raise an army, and command powerful heroes to retake the planet. Form alliances and engage in real-time faction wars against both aliens and hostile humans.


Defend your homeland from waves of evil robots by strategically deploying and upgrading a variety of powerful weapons. Explore diverse landscapes and adapt your tactics to overcome increasingly challenging robotic invaders in this exhilarating tower defense game.


Tap the screen to unleash a barrage of weapons and expel alien invaders to claim planets. Engage in a casual, amusing experience with various weapons and distinct civilizations.


Take practical steps to address climate change and discover sustainable living. This app connects you with a global community, offers personalized actions, and tracks your carbon footprint to help you reduce emissions and set green goals.


Engage in classic arcade-style gameplay to protect Earth from incoming asteroids. Tap to steer and hold to accelerate your ship's spin to destroy threats before they reach the planet.


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.


Defend Earth from an alien invasion by building a strategic space station fortress. Deploy a variety of upgradable weapons and traps to overcome over 150 waves of enemies and challenging bosses.


Embark on a thrilling adventure as three teenagers race against time to find a cure for a deadly disease and save the planet. Travel through time and diverse landscapes to uncover the secrets of the past and secure a future for humanity.


Protect your planets from asteroids by strategically controlling their orbital speed. Collect fragments to earn power-ups like shields and directional changes. Compete with other players on the global leaderboard for the highest score.


Defend Earth from an alien invasion in this action-packed shooter. Assemble your squad, upgrade advanced weaponry, and battle extraterrestrial forces in both online and offline modes. Uncover the aliens' motives and protect humanity's last hope.


Protect Earth from incoming asteroids in this simple and engaging arcade game. Destroy all threats to save humanity and the planet. It's the perfect way to pass the time.


Lead a massive army of trillions of soldiers against an alien invasion. Utilize strategic base placement, troop enhancements, and powerful weaponry to defend Earth and reclaim lost territory. Every battle is yours to command.


Defend Earth from a demon invasion in this idle tower defense game. Make strategic choices to strengthen the planet with permanent upgrades, unlock new abilities, and recruit researchers. Leave it idle to grow even more powerful.


Defend Earth from an endless barrage of asteroids by tapping to destroy them. Deploy laser satellites, upgrade your defenses, and unlock powerful weapons to protect humanity. Face massive boss asteroids and collect power-ups to survive.


Explore the internal structure of our planet with a detailed view of Earth's layers. Discover the composition, temperature, and depth of each section, from the crust to the core. This educational tool provides a fascinating look beneath your feet.




Walk to earn in-game currency and acquire villains to defend Earth. Develop equipment and expand your organization to restore peace. A casual patrol game with a compelling story.


Embark on a retro-style platformer adventure to defend Earth from an alien invasion. Run, jump, and shoot your way through challenging levels to save humanity. Experience a cute 3D-2D world with simple controls and addictive gameplay.