Perfect World Co., Ltd. is an online game developer and operator in People�s Republic of China. The Company primarily 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. Its Angelica three dimensional (3D) game engine enables the Company to create 3D graphics with visual effects and provides the technical foundation for realizing features in the game environment. Perfect World is an adventure and fantasy game with traditional Chinese settings. Players can take on various roles, including swordsmen, magicians, archers, priests and magical creatures. Players can also design and customize the appearance and characteristics of their characters and roles.