Photon Strike is described as 'In the distant future, automated bots designed to maintain space stations were left on their own. After a decade of uncontrollable self reconstruction they grew in numbers'. There are three games similar to Photon Strike for a variety of platforms, including iPad, iPhone, Android, Android Tablet and Apple TV. The best alternative is Utilizer Deluxe, which is free. Other Photon Strike like games are Galaxy on Fire (Freemium) and Battle Supremacy: Evolution (Paid).
Utilizer Deluxe is a mobile arcade space shooter mixed with a match 3 genre! Utilize fancy space monsters, fight with dangerous bosses, make color blocks combinations, upgrade your spaceship, complete all sectors and test your skills in the survival mode!