Command a space fleet in a galaxy filled with threats and secrets. As a space captain, your mission is to defend humanity from alien invasions and expand your territory among the stars. Choose your path: defender or conqueror.





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Whether you want more options like Klarnon Wars or a completely different take on the same concept, our curated list of 9+ similar apps and games has you covered. Updated for 2026 with the latest ratings and comparisons.











Command a space fleet in a galaxy filled with threats and secrets. As a space captain, your mission is to defend humanity from alien invasions and expand your territory among the stars. Choose your path: defender or conqueror.




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.


Engage in epic 3D space battles as you lead fleets against enemy forces for universal supremacy. Rise through the ranks, unlock advanced technology, and customize your ships to overcome any assault.


Engage in real-time PvP space combat by building your starship, joining fleets, and crushing rivals. Utilize unique attack strategies, upgrade your base, and participate in live social features to dominate the galaxy.


Lead Norse warriors in strategic card-based battles. Automatically spawn and level up your units, then play cards to boost their abilities and collect gold to dominate the battlefield. Prepare your vikings for epic clashes and achieve victory.


Command a legion of evolving warriors in a 2D tower defense game. Defend humanity's last stronghold against relentless foes, upgrading and customizing your soldiers with ancient and futuristic gear. Guide your evolving heroes through an unforgiving post-apocalyptic world.




This app enhances the Star Wars: Imperial Assault board game by acting as the Imperial opponent in a fully cooperative experience. Players team up as Rebel heroes to complete missions and a campaign, utilizing their physical game collection.