According to NPD data provided to Gamasutra, Blizzard's World Of Warcraft has now sold a spectacular 8.6 million copies of the PC MMO and its various expansion packs at U.S. retail over its lifetime.
Following the revelation that The Sims 3 sold more than 800,000 copies in its first month at U.S. retail, Gamasutra followed up with NPD to find out how well WoW -- perhaps the only retail competitor to The Sims series over the past few years -- has fared.
According to the company, which rolled up multiple SKUs of the massively popular online game, since November 2004, when the original World Of Warcraft launched, Activision Blizzard has sold 8.6 million retail copies of the game and its expansion packs.
