Drone Defender for android

Drone Defender - this is an interesting game for android phone based on the movie Oblivion. All living practically destroyed after a nuclear war, resources have been exhausted. All hope for the survivors to specific processors, producing vital resources. Your task - to protect these harvesters from attacks, patrolling the neighborhood on a futuristic helicopter. Remember, on your skill and dexterity, and determine the fate of many people's lives!