Worldwide sales of Assassin's Creed 3 are now over 7 million, Ubisoft announced today. After selling 3.5 million in its first week, the latest entry in the historical series doubled that sell-through figure by the one month mark, making it the fastest-selling game in Ubisoft's history.

The sales represent a significant rise from the series' beginnings. The original Assassin's Creed sold 2.5 million in its first month, making it back in 2007 the fastest-selling new video game IP in the US. Assassin's Creed 3 first month sales falls just short of triple that.

Ubisoft also released some big old stats for the Colonial adventure, revealing 3 billion assassinations have been committed in the game since launch. That suggests an average assassination-per-player count of around 429, which even by video game standards is an awful lot of murder.