The present invention provides a Sudoku game device, including: a housing; a display device disposed in but protruding from the housing and capable of displaying at least a seven-segment number; at least an input key disposed in but protruding from the housing, wherein users can input, select, or operate with the input key; a printed circuit board disposed in the housing to accommodate the devices described below; a controller disposed on the printed circuit board and coupled with the input key to receive input instructions from the input key to execute self-created puzzles or other operations; and a driving device disposed on the printed circuit board and coupled with the controller to receive control instructions from the controller to drive the display device to display the number.