Area51 Tower Defense

10seconds

Area51 Tower Defense is a free flash game that puts you in a battle against some nasty aliens. The Evil Aliens have escaped their prison and now they are attacking. You need to set up your tower defense system so you can kill the aliens in the Area51 tower defense flash game. Try to kill all of the aliens but take not of their color as they have different attack methods. In Area51 Tower Defense you can only kill aliens that are the same color as your tower defense unit so its important that you have a good defense strategy when setting up your tower defenses. Take advantage of a lot of different tower defense units and the more aliens you kill the more tower defenses you will unlock to help you defend against the alien creeps.