Orbital Defense Program

Orbital Defense Program is a cool game where you command space defense of our planet. There is a starting turret and a shield that saves us from alien invasion. Manage upgrades and spend points and credits where you think is better. Have you ever wanted to command an Orbital Defense Program? In this game you have all freedom of actions and can choose any strategy that you find efficient. Just spend activate weapons and shield in time, stop waves and spend money on upgrades.