RetroStar is a free-to-play arcade shooter with a first-person view in a sci-fi setting for mobile platforms. In 1901 (Earth time), a hostile alien race discovered new star systems. Fortunately, the Selenites were almost wiped out within a year by a common cold virus. For centuries they have been intent on revenge for what they claim was a biological attack. Now they have launched a full invasion. Your mission is to destroy as many alien fighters as possible and save the Earth.