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.






128+ iOS apps & games curated and reviewed
If you already know Defender of Planet Earth, this is the deeper bench. 128+ defender of planet earth apps and games for iPhone, all reviewed and ranked by user rating, recency, and download trend as of July 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | $1.99 | — | No | No | May 2026 | |
| 2 | Free | 4.0★ (12) | Yes | No | May 2026 | |
| 3 | Free | 4.2★ (610) | Yes | Yes | Jul 2026 | |
| 4 | Free | 4.1★ (100) | No | Yes | May 2026 | |
| 5 | Free | 4.6★ (32K) | Yes | Yes | Jul 2026 | |
| 6 | Free | 3.8★ (88) | Yes | No | Jul 2026 | |
| 7 | Free | 4.2★ (20) | No | No | Jun 2026 | |
| 8 | Free | 4.9★ (784) | No | No | Jul 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 planet from incoming asteroids by strategically maneuvering the moon to act as a shield. Tap to rotate and hold to accelerate the moon's movement to survive as long as possible.


Simulate the terraforming of planets using real scientific principles. Cultivate life, manage resources, and build civilizations on various worlds, from our solar system to fictional planets and moons. Encounter alien life and defend your settlements from cosmic threats.


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.


Engage in a thrilling space-age war game where you pillage planets for resources. Build bases, breed sergeants, and compete against other races to conquer the universe. The best defense is a good offense in this resource-gathering and population-breeding strategy game.


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.


Defend an ancient stronghold from alien invaders using powerful technologies. Build and upgrade towers in a classic tower defense experience with unique levels and diverse enemies. Enjoy an offline, ad-free strategy game with a compelling storyline.


Survive on a desolate alien planet by gathering resources and defending your base under a protective dome. Upgrade your skills, weapons, and defenses to combat hostile aliens and explore deeper for greater rewards.


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.


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 your planet from incoming meteorites by launching a robot scout. Aim and release to destroy threats before they strike. Collect planet pieces to create and share unique worlds.


Protect Earth from incoming asteroids by maneuvering an orbital mega-shield. Tap to control the shield's rotation and thrust, deflecting threats before they strike the planet. Rise through the ranks as you defend humanity.


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 approaching asteroid storm in this thrilling strategy game. Utilize a variety of satellites, shields, and upgrade systems to destroy incoming threats and achieve a high defense rating. Experiment with different weapons and tools across multiple viewing perspectives to save the planet.


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.


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.