Halo 4 is an upcoming video game and the eighth installment in the Halo franchise being developed for the Xbox 360. Halo 4 is intended to be the first of a new trilogy of Halo series games, named the "Reclaimer Trilogy". Whereas the previous Halo games were developed by Bungie, Halo 4 will be developed by 343 Industries. The game continues some time after the ending of Halo 3, and marks the return of the Master Chief as the main protagonist. Cortana will also appear in the game. The game is set for a worldwide release on November 6, 2012.