Your mission in this tower defense strategy game is to use various defensive towers to stop enemies. the location of towers is very important. if you have two or more different colored towers in adjacent positions, the power of these towers is much higher. this game challenges you to face infinite waves of enemy creeps. use your mouse to place any of the colored towers to the grey blocks. click tower to upgrade or sell it. when you happy, then click start button to start the waves.you also have infinite number of upgrades of tower. good luck!
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