Tank survival defense game: the base suffered the invasion of the battle droids, the overcrowding in the machine today, not all robots are kind and friendly, this battle droids out of control you want to want to destroy the command base, as a defense system driving a tank to destroy the invading robot as much as possible; defensive game of the survival of this tank is very interesting, oh, in the game can get the prize money to upgrade their tanks, only armed to a certain extent in order to better protect against the invasion of the robot.