Investigation into the video games' new business models. Today, one in two people in the world is a gamer. A colossal market dominated by publishers betting on dematerialization to boost their sales. On the one hand, publishers are cashing in on gamers' nostalgic attachment to a few cult games. On the other, they are targeting new casual gamers with subscriptions that offer unlimited access to huge catalogs of games. And cloud gaming now marks the beginning of a new era allowing gamers to access games hosted on distant servers from any device.