Offendron Warrior

There are robotic aliens called "Offendrons" in space. They attack other planets and make colonies to get the energies they need for living. In 3045, Offendrons had arrived at The solar system and attacked The earth, to make their 255th colony. Within a year The earth had successfully taken by Offendrons. However, Humans hadn't give up. Some people had escaped to their mars base and developed a vi…