Symbiosis TD

Symbiosis is a cool tower defence style game.  You are in a battle against aliens but they aren"t the type of aliens you are used to.  In Symbiosis you need to set up your tower defense units which are plants.   You need to use a good tower defence strategy to place your plants near the alien crystals that are attacking you.  You can earn upgrades to have better tower defenses and also buy additional spells and magic to help you defend against the alien crystals in Symbiosis tower defense.