Global Defense System

Use Mouse to interact. Every weapons platform has the capacity to hold up to 2 types of ammo. Keys 0, W, E select secondary ammo while keys A, S, D select main ammo for platforms1, 2 and 3. Earn cash by destroying asteroids. Automated turrets can be purchased. Turrets require visibility in order to function well. You can increase visibility between levels. Its up to you to save the world from a wave of asteroids that are heading straight towards earth! Upgrade and buy weapons platforms between levels. Shoot the incoming asteroids and prevent them from crashing into our planet. Be quick to aim and fire! Get weapon powerups and more.