Changyou.Com Ltd is an online game developer and operator in China. The Company engages in the development, operation and licensing of online games for Personal Computers (PCs) and mobile devices. This includes multi-player online games (MMOGs), which are online games. The Company also owns and operates Web properties and software applications for PCs and mobile devices related to games. The games in the Company�s pipeline include self-developed MMOG, YZZX; three licensed MMOGs, Echo of Soul, Asta, and Fantasy Frontier Online; two self-developed Web games, JY and SZHG; and jointly-developed mobile games. The Company operates over 11 MMOGs, three Web games, and mobile games. Key games that are in operation include TLBB; DDTank; Wartune; the Blade Online series, which consists of BO and BH2; DMD; DHSH; Dou Po Cang Qiong; Wartune (mobile version) and TLBB (mobile version).