Blizzard Entertainment
On November 23, 2004, Blizzard released "World of Warcraft", a massively multiplayer online role-playing game. "World of Warcraft" is the fourth released game set in the fantasy "Warcraft" universe, which was first introduced by "" in 1994. Blizzard announced "World of Warcraft" on September 2, 2001. The game was released on November 23, 2004, on the 10th anniversary of the "Warcraft" franchise.
Role-playing video game
Among the best-selling PC RPGs overall is the massively multiplayer online game "World of Warcraft" with 11.5 million subscribers as of May 2010. Among single player PC RPGs, "Diablo II" has sold the largest amount, with the most recently cited number being over 4 million copies as of 2001. However, copies of the "Diablo: Battle Chest" continued to be sold in retail stores, with the compilation appearing on the NPD Group's top 10 PC games sales, list as recently as 2010. Further, "Diablo: Battle Chest" was the 19th best selling PC game of 2008—a full seven years after the game's initial release; and 11 million users still played "Diablo II" and "StarCraft" over Battle.net in 2010. As a franchise, the "Diablo" series has sold over 20 million copies, not including "Diablo III" which was released for Windows and OS X in 2012.