Abstract: By enabling exchange of information relating to players, apart from game data, “communication” between the players is increased, and the sense of rivalry and level of interest generated by a game are raised. The communicative game system 1 forms a network comprising a plurality of game devices 2a-2d connected mutually by communications media 3. The plurality of game devices 2a-2d respectively comprise a communications system 31 for receiving data transferred over the network and transferring the received data and data generated by the home game device onto the network, and a host system 32 for accessing the received data. By this means, data comprising a game packet, sound packet and video packet can be transmitted by conducting broadcast communications based on the communications system 31 and host system 32 between the plurality of game devices 2a-2d.