It is my great pleasure to welcome you to the 7th EAI International Conference on Game Theory for Networks. Over the last decade, there has been substantial progress on the application of game theory in the research on various networking technologies. Meanwhile, the game theoretic analysis also triggered many new technologies and insights in designing new network protocols or understanding various networks such as social networks. Gamenets 2017 will bring the state of art in this prospecting area, with the accepted and invited papers, each of which is carefully reviewed by the technical program committee. Various aspects of game theory in the context of networking will be discussed in the rather compact conference, such as the game in IoT, equilibrium of network selection, security issues in network games, et al. We also have the honor to invite our world famous keynote speakers, Prof. Poor and Prof. Altman, to give talks on smart grid and network neutrality. As the general chair, I sincerely wish you have wonderful time in Knoxville, in the early summer sunshine of Tennessee! I also want to show my sincere thanks to the whole conference committee members who have paid substantial effort for GameNets 2017!