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Recently, medical advances have been increasing the size of the aged population. With rapidly developing technology, computers are now essential parts in our daily life, and the number of the aged people using computers is also increasing continuously. But user interfaces and contents for the aged people have not yet been developed actively. In this paper, we present a 3D sensory gate-ball game which can be played by the aged people easily. This study is based on 3D graphics and uses a realistic gate-ball stick and balls as interfaces, so it can improve both physical and mental health of the aged people. Because our game is a sensory game, it is easy to play in house without an outdoor playground. In addition, the game provides many interesting situations so that it can raise the participation and interest of the aged people.