Earth Onslaught

Help Captian Samael to man 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.

Instructions
Use your mouse to aim, press your left mouse button to open fire.
Press 1,2,3,4 keys to select weapons.
Spawn new troops (when purchased) using the hotkeys at the bottom (Q,W,E,R,T,Y,U,etc..)
Press p key to pause
Press m key to mute