Get ready to Defend the Universe!! Build towers with your limited supply, and Defend the five planets that 26 types of zombies is about to invade. Each time you build a tower, different moving path. You have to think fast and have successful strategy and combat them all. Game Features: - Include AD. - There are five planets.(α,β,γ,δ,ε) - Each planets have story mode and mission mode. - There are three balance type in the story mode.(normal, hard, master) - You can buy useful items in the shop. - You have to defend against monsters during the defined wave. - You can skip some of the wave in the stage. - Support auto save(local). Whenever you can continue play. - If you defend each stage, you can obtain star.(3, 2, 1) - If you completely defend each stage, you can get a ruby reward. - Star will be used to open a planet that has been locked. With Facebook: - If you login with Facebook, you can play with friends. - You can request to friends only once a day. - If you login with Facebook, you can obtain a plus 20% score. - You can ask your friends for more RUBY or buy a full set of RUBY now. - If you share on Facebook, will obtain RUBY in game.