World of Warcraft now has more than 12 million active subscriptions. Blizzard’s massively multiplayer online game passed the milestone in the wake of the game's second expansion, The Wrath of the Lich King, finally being launched in China and as Western markets gear up for the launch of the third expansion, Cataclysm, on the 7th of December.

As if the above figures didn’t make it abundantly clear, World of Warcraft is the most popular subscription-based MMO in the world.

The game was the worldwide best-selling PC title in 2005 and 2006. In 2007 it came second to its first expansion, The Burning Crusade. In 2008 the second expansion, Warth of the Lich King, was launched and the series claimed three of the top five PC titles for the year.