To provide a railway model system using a game machine for home use which can be realized by connecting a controller and a control unit to the game machine for home use and connecting a model railway to the control unit, and can travel and move in a zigzag direction, and can be braked so that a real traveling can be effected.

A controller 2 and a control unit 3 are connected to a game machine 1 for home use, and a model railway 5 is further connected to the control unit 3. Model cars 6 can be driven by reading programs of a railway model system stored in a software 1b. By operating a master controller 2a and a brake lever 2b, control voltage is calculated and outputted in the machine 1 based on present car velocities, weights of cars, and operating signals, whereby the model cars 6 can be driven and braked in a real manner.