"World of Warcraft" (WOW) is a massively multiplayer online role-playing game developed by Blizzard Entertainment. In 2004, World of Warcraft began open beta testing in North America and is currently one of the most popular large-scale games in the world. Currently, the operator in China is NetEase.

Blizzard Entertainment is the world's top computer game and television game development company. The famous games developed by the company include Warcraft, World of Warcraft (WOW), StarCraft and Diablo.