In China, because a large number of players do not own the computer on which they play games (e.g. if they play in Internet cafés), the CD keys required to create an account can be purchased independently of the software package. To play the game, players must also purchase prepaid game cards that can be played for 66 hours and 40 minutes. A monthly fee model is not available to players of this region. The Chinese government and NetEase, the licensee for World of Warcraft in China, have imposed a modification on Chinese versions of the game which places flesh on bare-boned skeletons and transforms dead character corpses into tidy graves. These changes were imposed by the Chinese government in an attempt to "promote a healthy and harmonious online game environment" in World of Warcraft. The Chinese government delayed the release of the Wrath of the Lich King expansion, due to what it deemed objectionable content. NetEase took over licensing of World of Warcraft from The9 in June 2009 following the expiration of The9's contract, and were able to secure a launch for Wrath of the Lich King on August 31, 2010, nearly two years after its Western release.
When new content is added to the game, official system requirements may change. In version 1.12.0 the requirements for Windows were increased from requiring 256 MB to 512 MB of RAM. Official Windows 98 technical support was dropped, but the game continued to run there until version 2.2.3. Before Mists of Pandaria, World of Warcraft will officially drop support for Windows 2000.
World of Warcraft (abreviado como WoW, literalmente en español Mundo de Warcraft) es un videojuego de rol multijugador masivo en línea desarrollado por Blizzard Entertainment. Es el cuarto juego lanzado establecido en el universo fantástico de Warcraft, el cual fue introducido por primera vez por Warcraft: Orcs & Humans en 1994.4 World of Warcraft transcurre dentro del mundo de Azeroth, cuatro años después de los sucesos finales de la anterior entrega de Warcraft, Warcraft III: The Frozen Throne.5 Blizzard Entertainment anunció World of Warcraft el 2 de septiembre de 2001.6