To provide a game machine capable of preventing a game from being executed while a game board is not held by an inner frame.

In the game machine 1, the inner frame 2 includes a game board holder part 12 whose state can be selected from a game board attachment possible state A in which attachment of the game board 3 is possible and a game board holding state B in which the attached game board 3 is held. The game machine 1 also has a hindrance part 17 formed on a front frame 4. The hindrance part abuts on the game board holder part 12 in the game board attachment possible state A to hinder the front frame 4 from being closed, but does not abut on the game board holder part in the game board holding state B to allows the front frame to be closed.

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