Blizzard announced on Tuesday that their widely-popular World of
Warcraft MMORPG has surpassed the 9 million subscriber mark, an
unprecedented number for an MMO game.

The company is set to
release The Burning Crusade expansion pack for mainland China in the
coming months and expects an influx of new and returning subscribers as
a outcome.

Since first debuting in North America on November 23,
2004, World of Warcraft has become the most popular global MMORPG of
all duration. It has been widely criticized as one of the most addicting
games ever made with some reports pinning addiction rates as high as 40
percent of its players.

GamePro gave the game a 4.5/5 review score last November.