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.

The Halo video games have been highly successful and influential; the first game was labeled the killer application of Microsoft's Xbox and was credited with selling many consoles.^[1][2] Halo: Combat Evolved is also noted for its intuitive control scheme that has been used by many console first person shooters since.^[3] Halo 2 sold 2.4 million copies making US$125 million in the first 24 hours after its release beating the record for highest grossing entertainment release.^[4] Halo 3 grossed US$170 million on its first day, $45 million more than its predecessor.^[5] Halo 2 and Halo 3 are also the best selling titles of their respective consoles, the Xbox and the Xbox 360.^[6][7]

• Xbox Game Studios