A game device includes: an input position acquiring unit for acquiring the position of an input entry to a touch panel capable of concurrently detecting input entries at a plurality of points; a drawing start determination unit for determining, when the respective positions of concurrent input entries to the touch panel at two points are acquired, to start drawing a graphic if a distance between the two points is within a first range; a drawing unit for drawing, while the input entries at the two points continue to be input after drawing a graphic is started, a graphic calculated based on the respective movement trajectories of the two points and displaying the graphic on a display device; and a drawing end determination unit for determining to end drawing the graphic when the input of the input entries at the two points ends.