Background In 2133, an unknown creature came to the earth and brought devastating damage to it. Human beings had no choice but to live in underground shelters. With the help of the ruin searcher, people found some precious video information. And they found out that it was a mysterious robot squad that saved the earth. Game Features Facebook https://www.facebook.com/HeroesProductions/. Key Fetures:Command different types of robot armyResist the flooding of aliensChallenge mysterious giant alien monstersIt’s very difficult but amusing and funny