Real World EventsEdit
- February 2: The second Mythic Map Pack was released on the Xbox Live Marketplace.
- March 3: The Halo: Reach Multiplayer Trailer was released.
- April 15: Microsoft discontinued all original Xbox Live services, including Halo 2.
- May 3: The Halo: Reach Multiplayer Beta was launched.
- May 20: The Halo: Reach Multiplayer Beta ended.
- August 3: The reissue of Halo: The Fall of Reach was released.
- August 26: The live-action trailer for Halo: Reach, Deliver Hope, was released.
- September: McFarlane Toy Company released the first action figures for Halo: Reach.
- September 14:
- September 15: Halo: Reach was released in three editions in Japan.
- November 30: Noble Map Pack was released for Halo: Reach.