World of Warcraft
World of Warcraft (WoW) is a massively multiplayer online role-playing game (MMORPG) released in 2004 by Blizzard Entertainment. It is the fourth released game set in the "Warcraft" fantasy universe. "World of Warcraft" takes place within the "Warcraft" world of Azeroth, approximately four years after the events at the conclusion of Blizzard's previous "Warcraft" release, "." The game was announced in 2001, and was released for the 10th anniversary of the "Warcraft" franchise on November 23, 2004. Since launch, "World of Warcraft" has had seven major expansion packs released for it: "", "", "", "", "", "", and "".
World of Warcraft
Starting with 4.3, players could try out an experimental 64-bit version of the client, which required manual downloading and copying files into the installation folder. Since 5.0, the 64-bit client is automatically installed, and used by default.