Giant Network Group Co., Ltd. researches, develops, and sells online games in China. It offers client and mobile games; and mobile Internet products, such as WiFi Sharing Master, MUST collaboration, and Dudu Voice. The company was formerly known as Shanghai Zhengtu Network Co., Ltd. and changed its name to Giant Network Group Co., Ltd. Giant Network Group Co., Ltd. was founded in 1994 and is based in Changsha, China.