To realize a display controller capable of performing display at a high level by a variable display device by reducing a processing load on the control means of the display controller.

In a game machine provided with a game board 6 for providing a game, a game controller 100 for controlling the game played on the game board and a slave controller (display controller 150) having the first control means 151 capable of controlling an electric game machine (variable display device 8) related with the game with a control signal from the game controller, the slave controller is provided with the second control means 157 for receiving the control signal from the game controller and outputting information based on the control signal to the first control means.