The advancing of a game is made possible using the travel in the real world of a vehicle such as an automobile, as well as advancement of the game without entirely wasting travel of the vehicle. A game system (50) includes a probe device (21) that collects and transmits travel data of a vehicle and a game device (1), in which the game device (1) is provided with an travel data acquisition unit (31) that acquires travel data from the prove device (21), a distance calculation unit (33) that calculates a travel distance in virtual space based on the travel data thus acquired, and a display control unit (34) that displays a sight-seeing area unique image to a user when travelling on a route in virtual space according to the travel distance thus calculated, and as a results of this travel, reaching a set sight-seeing area.