Your mission in this Tower Defense type of game is to eliminate waves of slimy critters. Each level consists of a number of waves and each of these waves is progressively harder and must be eliminated before it reaches the exit points. For every monster killed your defenders are awarded gold and experience. Gold can be used to purchase new defenders, level up existing one or pave new areas ready for defenders to use. Once you have a defender of a specific level it unlocks advanced defenders for purchase. Defenders can only be placed on paved tiles. Use YOUR MOUSE to control the game. You can use SPACEBAR to cancel current build order or hold down SHIFT KEY to place multiple defenders of the same type. To learn more about defenders, check in-game documentation. Good luck!