J'ai été sur le site donné à la fin de la vidéo www.perfectworld.com

• > http://www.perfectworld.com/about/whatis

sur cette page il est écrit : "Our game portal offers diverse gaming communities where players of all backgrounds and interests can play, communicate, share, and enjoy our list of high quality massive multiplayer online games developed based on our proprietary Angelica 3D game engine and game development platform."