| 摘要 |
PROBLEM TO BE SOLVED: To provide a game system advantageous for three parties, players, game parlors and a manufacturer related to object game machines. SOLUTION: This game system for the object game machines 10A installed in a plurality of game parlors and pertaining to a specific maker or a specific machine type draws a prize lottery at a prescribed winning probability for every internal lottery of the object game machines 10A, and makes the specific manufacturer award a prescribed amount of negotiable values to the game parlors and/or the players related to the object game machines 10A winning the price lottery. The lottery probability is calculated based on the total number of installed object game machines 10A and the number of estimated times of drawing the internal lottery in a prescribed period. COPYRIGHT: (C)2007,JPO&INPIT
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