Microsoft Corp. today announced a plan for Bungie Studios, the developers of the "Halo®" franchise, to embark on a path to become an independent company. Microsoft will retain an equity interest in Bungie, at the same time continuing its long-standing publishing agreement between Microsoft Game Studios and Bungie for the Microsoft-owned "Halo" intellectual property as well as other future properties developed by Bungie.
The critically acclaimed Xbox 360®-exclusive "Halo 3" achieved $300 million in global sales in its first week. Released on Tuesday, Sept. 25, "Halo 3" is the fastest-selling video game ever and already one of the most successful entertainment properties in history.
News source: Microsoft Press Release