Perfect World Co., Ltd. is an online game developer and operator in China. The Company develops online games based on its game engines and game development platforms. Its technology capabilities consist of its game engines, game development platforms and real-time anti-cheating, all developed and built by its development team. The Company operates in two segments: PRC operations and International operations. The Company has launched in China a number of self-developed MMORPGs, namely, Perfect World, Legend of Martial Arts, Perfect World II, Zhu Xian, Chi Bi, Pocketpet Journey West, Battle of the Immortals, Fantasy Zhu Xian, Forsaken World, Dragon Excalibur, Empire of the Immortals, Return of the Condor Heroes, Saint Seiya Online, Swordsman Online and Holy King, an online casual game, Hot Dance Party, as well as several web games and mobile games. In the United States and European market, it established its wholly owned subsidiaries, PW USA and PW Europe.