A gaming system starts a free game mode when a predetermined condition is established in a game wherein the game is repeatedly executed a predetermined number of times without consuming a playing value, and gives a dividend to a player based on a result in the free game mode. The gaming system comprises a collective dividend lottery unit which determines a collective dividend in exchange for the game executed a specific number of times, a selection unit which selects any one of (a) reception of the collective dividend and (b) continuation of the game in the free game mode in response to the player's instruction, a collective dividend giving unit which gives the collective dividend to the player, and a remaining number of times control unit which decreases the remaining number of times of the game in the free game mode in exchange for giving the collective dividend.