One week after launching worldwide, "Halo 5: Guardians" has made history as the biggest Halo launch and fastest-selling Xbox One exclusive game to date, with more than $400 million in global sales of "Halo 5: Guardians" games and hardware, pushing the franchise to over $5 billion lifetime. Microsoft said that fans had logged more than 21 million hours of total gameplay, including 12 million hours in campaign mode alone. The multiplayer modes have also led to 9 million total hours played with nearly 7 million multiplayer matches played across Arena and the all-new Warzone mode. In addition, Halo fans are taking to the new Requisition System in a big way, with over 45 million REQ Packs acquired, totaling more than 568 million REQ Cards.

"Halo 5: Guardians" is available now for $59.99 (estimated retail price) at Microsoft stores in the U.S., Canada and Puerto Rico, microsoftstore.com, other major U.S. retailers, as well as via digital download.