The9 Limited (NASDAQ: NCTY) (“The9”), a leading online game operator in China, today announced that Blizzard Entertainment's World of Warcraft, the subscription-based massively multiplayer online role-playing game (MMORPG) has achieved a record peak concurrency of 1 million, the highest concurrency since the game's commercial launch in June 2005, following the launch of its new expansion pack, World of Warcraft: The Burning Crusade, in mainland China on September 6, 2007.