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.
World of Warcraft: Cataclysm
On October 4, 2010 Blizzard officially announced the release of Cataclysm for December 7, 2010. The expansion was made available as Standard Edition, Collectors Edition and as a new digital download from the Blizzard Online Store. The digital version of the game has been made available for pre-purchase through Battle.net, and gives gamers the opportunity to play the new expansion pack the moment the servers go live (at 12:01am PST, December 7).