Engage in a fast-paced arcade shooter defending against alien invaders and asteroids. Utilize shields as a weapon, dodge projectiles, and collect power-ups to survive.
Mothership Defense by Adknown






151+ iOS apps & games curated and reviewed
Mothership Defense is the household name in mothership defense, but it's far from the only option. We track 151+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.






Engage in a fast-paced arcade shooter defending against alien invaders and asteroids. Utilize shields as a weapon, dodge projectiles, and collect power-ups to survive.






Engage in a roguelike tower defense experience set in space. Collect unique upgrades and power-ups to customize your ships and advance through challenging enemy waves. Enjoy a minimalistic design with intuitive controls for a relaxing yet strategic gameplay session.





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 an alien invasion with fast-paced, retro-inspired arcade action. Utilize simple one-finger controls to deploy defenses, collect upgrades, and battle bosses across diverse maps. Enjoy challenging gameplay with a variety of modes and achievements.


Defeat waves of aliens to gain resources and power up your neon towers. This offline sci-fi tower defense game features incremental upgrades and automatic combat, even when you're not playing. Master alien invasion strategies to push deeper into the galaxy.


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.


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.


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.


Build defenses and fight off alien monsters in your room. Tap to create structures and upgrade weapons to survive the invasion until darkness passes. Outlast the devil monsters to win.


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.


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.


Defend against waves of angry aliens in this adventure space game. Choose your ship, combine skill cards and bots, and strategically upgrade weapons to survive increasingly dangerous levels. Enjoy fast-paced, automatic gameplay perfect for on-the-go play.


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.


Embark on an epic sci-fi adventure in a falling Galactic Empire. Command your starship, explore uncharted space, and dominate a saga blending deep strategy with intense action. Uncover secrets, build your fleet, and shape the future of humanity.


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 a massive space strategy MMO where you colonize planets, build powerful fleets, and battle players globally. Explore alien technologies, form alliances, and lead humanity's fight for survival in a galactic war.


Defend your bunker against relentless waves of enemies in this thrilling strategy game. Deploy diverse units with unique skills, upgrade your forces in real-time, and prepare for epic boss battles. Your strategic decisions and unit combinations are key to survival and becoming a galactic legend.


Command your fleet in a post-war galaxy, taking on bounty contracts and exploring ruins for treasure and technology. Build your base, upgrade your ships, and engage in tactical space combat. The choice is yours: roam the void or rise from chaos.


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.


Embark on an interstellar adventure to defend humanity from an alien invasion. Build and expand your base, develop powerful fighter jets and mechs, and engage in strategic combat to reclaim planets and ultimately defeat the enemy. Experience a visually rich 3D world with smooth gameplay.