Your mission in this fun online game is to clear a planet of alien scum by slowly exterminating them. Earn credits to build up your alien extermination team. Use WASD KEYS or ARROW KEYS to move. Use 1 to 4 to change weapon. Press "R" KEY to reload gun. Use YOUR MOUSE to aim and shoot. When starting a new game. visit the base first. you can buy better guns and upgrades from the merchants there. Good luck!