Game Machine with Physical Lottery Mechanism

Abstract

A game machine comprises a physical lottery system and a control unit, the physical lottery system imparting a physical motion to a ball on a bingo stage having a plurality of winning prize pockets corresponded to at least one option respectively, and determining a selected option depending on which of the winning prize pockets the ball has been taken in; the control unit executing a predetermined game in association with the lottery result by the physical lottery system and delivering to a player amusement value of the amount depending on the game result, wherein a probability to select each option is calculated based on the lottery result within a predetermined sampling period, and in reference to the calculated probabilities the payout rate of amusement value in the game is controlled.

1 . A game machine comprising:
 a physical lottery system for selecting at least one option from a plurality of options by utilizing physical motions of a medium for lottery; and   a game execution device for executing a predetermined game in association with a lottery result of the physical lottery system, and delivering to a player, amusement value, the amount of which depends on a result of the game, wherein   the game machine further comprising:   a probability calculation device for calculating a probability to select each option based on a lottery result within a predetermine sampling period; and   a payout rate control device for controlling a payout rate of the amusement value in the game in reference to the probability calculated by the probability calculation device.   
   
   
       2 . The game machine according to  claim 1 , wherein
 The game execution device is configured so that a pattern arrangement area is generated virtually, where a plurality of patterns are arranged in a predetermined alignment, each of the plurality of patterns corresponding to each of the plurality of options in the physical lottery system, and in a case that a predetermined win arrangement is formed by the plurality of patterns in the pattern arrangement area, each of the plurality of patterns corresponds to each of the plurality of options selected through plural lotteries in the lottery system, the amusement value is delivered to the player.   
   
   
       3 . The game machine according to  claim 2 , wherein
 the payout rate control device controls the payout rate by changing the alignment of patterns in the pattern arrangement area based on the calculated probability.   
   
   
       4 . The game machine according to  claim 3 , wherein
 the payout rate control device changes the alignment of the patterns so that a difference between an actual value of the payout rate and a target value of the payout rate is reduced.   
   
   
       5 . The game machine according to  claim 1 , wherein
 the game execution device virtually generates as the pattern arrangement area, a bingo card where the patterns are aligned in a matrix shape, in which the number of patterns in a longitudinal direction is the same number of patterns in a lateral direction, and in a case that all patterns on any one of lines in the longitudinal direction, the lateral direction, or a diagonal direction correspond to the options selected by the physical lottery system, it is recognized that the win arrangement has been formed and the delivery of the amusement value is executed.   
   
   
       6 . The game machine according to  claim 5 , wherein
 the payout rate control device controls the payout rate, in a case that the win arrangement has been formed, by changing the arrangement of patterns included in the win arrangement based on the probability calculated by the probability calculation device as to each of the options corresponding to the patterns included in the win arrangement.   
   
   
       7 . The game machine according to  claim 6 , wherein
 the payout rate control device, in a case that the actual value of the payout rate is lower than the target value of the payout rate, changes the arrangement of patterns so that the pattern corresponding to the option the win probability of which is relatively higher is arranged at a center of the win arrangement, and in a case that the actual value of the payout rate is higher than the target value of the payout rate, changes the arrangement of patterns so that the pattern corresponding to the option the win probability of which is relatively lower is arranged at a center of the win arrangement.