Your mission in this space tower defense game is to protect your path using twelve unique towers in order to kill the creeps before they reach the end of the path. You need levels in tech points to create certain towers. Use skills at the end of each level to upgrade in the skill shop. The first 3 levels are meant to be easy for you to collect skill points. You get a little gold for sending waves early and also there is some interest at the end of each level so saving does help a bit. Use YOUR MOUSE to control the game. Good luck!