Halo 5: Guardians is the Fastest-Selling Xbox One Exclusive

"The success of Halo 5: Guardians is a testament to the innovative work from the entire team at 343 Industries."

Microsoft has announced that Halo 5: Guardians has made more than $400 million worldwide across Halo 5 game and hardware sales, elevating lifetime earnings for the entire series to over $5 billion. Also Guardians was Xbox One's most played game during its opening week, with the highest attach rate of any first-party title on the platform.

"The success of Halo 5: Guardians is a testament to the innovative work from the entire team at 343 Industries to bring this installment to Xbox One and the incredible community of fans who have come to love the story, characters and gameplay central to the franchise," Head of Xbox Phil Spencer said. "The game represents all the possibilities of Xbox One and has earned its place as the anchor title in the greatest holiday games lineup in Xbox history."

From its launch on October 27, more than 21 million hours of Halo 5: Guardians has already been played, with 12 million of those being spent solely on its campaign.