Your mission in this online defense game is to take a role of Captain Samael and defend earths last inter-orbit defence station and hold off the poor speaking Bhal Zaggoth and his evil alien forces. Upgrade your firepower and defences, buy air and ground units to patrol the area. Use YOUR MOUSE to aim and click LEFT MOUSE BUTTON to fire. Press 1-4 NUMBER KEYS to select weapons. Spawn new troops (when purchased) using the hotkeys at the bottom (Q,W,E,R,T,Y,U,etc..). Good luck!