As of October 28, the popular fantasy game had 11 million subscribers worldwide. Blizzard cited the November 13th arrival of Wrath of the Lich King, the game's second expansion pack, as a factor in the recent growth--Lich King sold 2.8 million copies on its first day at stores, with Blizzard dubbing it "the fastest-selling PC game of all time."
Since its debut, Lich King has continued to top the PC sales charts, with Blizzard today noting that the expansion sold over 4 million copies during its first month at retailers.
"The base World of Warcraft game and the World of Warcraft Battle Chest are performing better than last year," noted GameStop VP Bob McKenzie. "That type of traction is very impressive for a game that is going into its fifth holiday season and speaks to the enthusiastic player base Blizzard Entertainment products have."
World of Warcraft's Subscriber Definition
World of Warcraft subscribers include individuals who have paid a subscription fee or have an active prepaid card to play World of Warcraft, as well as those who have purchased the game and are within their free month of access. Internet Game Room players who have accessed the game over the last thirty days are also counted as subscribers. The above definition excludes all players under free promotional subscriptions, expired or cancelled subscriptions, and expired prepaid cards. Subscribers in licensees' territories are defined along the same rules.