Call of Duty: Black Ops II Racks Up $1 Billion In Sales

Activision has announced that Call of Duty: Black Ops II has earned a $1 billion in revenue worldwide in just 15 days on sale.

The company says it got the figure from U.K. Chart-Track sales data as well as internal estimates, and that it breaks the movie box office record set by Avatar, which hit a billion in 17 days. Activision also notes that more than 150 million hours of Black Ops II have been played since release on PSN and Xbox Live.

It may not all be champagne corks, however. Industry analysts say that sales for the last two games overall are actually trending down.