Sci-Fi Space Defense : Alien war game!

Play the hit action strategy game with over than 30 challenging levels. Meet, greet and defeat legions of space ships from the dawn of time to the end of days. Just Defend your base and stay alive for as long as you can Good luck Features:* Realistic physics engine* Smooth animation (Constant 60 FPS)* Beautiful retina graphics* Awesome epic soundtrack* Amazing sound effects* Super sensitive controls* 30 Challenging Levels* 2 Game modes : Campaign , Survival* 2x mode to speed up gameplay* In-game coin store* In-game superpower store* Game Center Leaderboards* Game Center Achievements* iPhone 6 , 6 plus and iPad retina compatible