Halo is a science fiction video game franchise created by Bungie and owned and published by Microsoft Studios. Central to the Halo series are the three first-person shooter video games Halo: Combat Evolved, Halo 2 and Halo 3; novelizations, soundtracks, and other media are also available. The story of the series is about the Master Chief, a cybernetically enhanced human super-soldier and his artificial intelligence (AI) companion, Cortana, as the humans of a futuristic universe battle the Covenant, a theocratic alliance of alien races. The Halo series has inspired machinima productions, such as Red vs. Blue, and other fan fiction; however, this list only covers media produced or endorsed by series creator Bungie, or the intellectual property overseer 343 Industries.