The paradigm of cloud gaming is based on running a game on a remote server and using video streaming to play  it from any device. Many unsuccessful attempts to offer this service have had to deal with both technical and business problems. Thanks to advances in different fields, it is a technique that is closer to reality every day and whose applications range from videogames to remote driving. In this conference we analysed all the technical aspects of this paradigm, its viability as a business and the future challenges it poses.