Defend humanoids from alien invaders in this retro 80s-style arcade shooter. Experience fast-paced gameplay with classic mechanics, enhanced graphics, and engaging power-ups across hundreds of levels on three different planets.






187+ iOS apps & games curated and reviewed
Interstellar Guardian is the household name in defender arcade game, but it's far from the only option. We track 187+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.






Defend humanoids from alien invaders in this retro 80s-style arcade shooter. Experience fast-paced gameplay with classic mechanics, enhanced graphics, and engaging power-ups across hundreds of levels on three different planets.






Engage in thrilling arcade-style space combat, defending the galaxy from alien invaders. Pilot customizable starships, upgrade weapons, and face challenging missions and bosses. Experience a blend of classic nostalgia and modern action with competitive multiplayer and leaderboards.






Relive a classic arcade experience by defending astronauts from alien abduction and destroying enemy ships. Be careful not to harm the astronauts, as their safety is crucial to preventing planetary destruction and mutant alien transformations.


Relive the golden age of arcades with a collection of legendary 80s games. Enjoy classic titles, compete on global leaderboards, and unlock achievements. Supports Bluetooth controllers for an authentic experience.


Defend Earth from an alien invasion in this fast-paced arcade space shooter. Upgrade your ship with powerful enhancements and conquer over 150 unique levels, including challenging boss battles. Compete for high scores and save your progress.




Experience a classic arcade roller game with stunning 3D graphics and realistic physics. Compete head-to-head with players worldwide, climb leaderboards, and customize your dream arcade. Unlock unique skins and characters for a personalized experience.


Blast through waves of alien invaders in this classic arcade space shooter. Collect and upgrade over 100 unique ships, complete exciting missions, and compete on global leaderboards. Enjoy short game sessions or an action-packed campaign with stunning graphics.


Engage in a thrilling survival-based running game where your objective is to defeat all enemies. Experience intense gameplay focused on combat and evasion to achieve victory.


Engage in an intense shooting and strategy game where you merge defensive towers to repel waves of monsters, orcs, and aliens. Develop tactical formations and upgrade your war machines to protect your base and survive challenging boss attacks.


Engage in fast-paced tower defense battles against alien invaders. Deploy a variety of towers, heroes, and infantry to defend Earth. Upgrade your defenses and strategize to overcome hordes of enemies across numerous levels and challenges.


Build and manage your own virtual arcade. Collect tokens, earn in-game currency, and expand your business by purchasing new machines and unlocking new areas. Experience the fun of running a bustling arcade.


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.


Merge Defense 3D is a strategic tower defense game where players merge defenders to upgrade their power and protect against advancing enemy blocks. With challenging brain puzzles, simple controls, and free offline play, it's the perfect game for daring minds. Survive as long as you can and have fun!


Engage in thrilling base defense by merging ammo boxes to upgrade your firepower and take down waves of enemies. Upgrade your weapons and bullet rush to survive increasingly difficult attacks and become the ultimate defender.


Build and manage your dream arcade by stocking it with various game machines. Host tournaments, customize your venue with amenities, and attract more customers to become a top-rated gaming paradise.


Pilot a futuristic jet to defend the city from an alien invasion in this high-speed, action-packed endless runner. Blast through waves of enemies, collect upgrades, and compete for the highest score.


Bounce a ball to score points in this fast-paced arcade game. Face increasing challenges like speeding balls, cloning, and shrinking paddles. Explore new game modes including jumping, aiming, brick breaking, and shooting.


Lead your community, manage resources, and defend your base from enemies. Explore new areas to rescue civilians and expand your territory. Upgrade your character and hire workers to strengthen your defenses and conquer new bases.


Collect and play over 20 unique arcade games, upgrading them with power-ups. Recruit and train heroes to earn coins, and climb leaderboards across four competitive arcades. Prove you have what it takes to be the ultimate champion.