Provided is a game system having a communication function which takes into account the operability of a player. A game device is provided with: a transmission image obtaining portion which, when the hand tiles displayed in a game-state screen of a mah-jongg game are specified as a capture image, obtains image information of the capture image; and a deliver information transmitting portion which transmits the image information obtained to the server as delivery information. The server is provided with: a player information storage portion which holds delivery destinations of the delivery information of the player; a delivery destination specifying portion which specifies the delivery destinations corresponding to the player of the game device from which the delivery information was transmitted; and a delivery portion which transmits the delivery information to the delivery destinations specified via an open network.