Abstract: A new gaming environment is provided. A server determines a first predetermined time and a second predetermined time, determines display content based on the second predetermined time which is determined, displays the determined display content on the display, determines a gaming machine to which a bonus is provided from the plural gaming machines when current time becomes the second predetermined time, and sends winning information to the determined gaming machine, and the gaming machine sends the determined information to the server each time there is start operation of a game, and payouts a predetermined number of gaming medium when the winning information is received.

Abstract: A new gaming environment is provided. When a start button is pressed or a payout process is executed, difference value information is sent to a server. When the server receives the difference value information, it is determined whether or not the winning probability of bonus is changed in the gaming machine which sends the difference value information. If it is determined that the winning probability of bonus is changed, a new winning probability is determined and the determined winning probability is sent to the gaming machine which sends the difference value information. When the gaming machine receives the new winning probability of the bonus, the winning probability is renewed to the received winning probability. It is determined whether or not bonus is won based on the renewed winning probability. If it is determined that the bonus is won, a predetermined number of gaming media is provided.

Abstract: A new gaming environment is provided. A server obtains a payout rate from each of gaming machines, determines winning probability of bonus in each of the gaming machines based on the obtained payout rate, and sends the determined winning probability of bonus to each gaming machine. Also, a gaming machine determines whether or not the bonus is won based on the received winning probability. If the bonus is won, a predetermined number of gaming medium is provided.

Abstract: A new gaming environment is provided. When the start button of a gaming machine is pressed, start information is sent to a server. When the server receives the start information, it is determined whether or not the winning probability of bonus is changed in the gaming machine which sends the start information. If it is determined that the winning probability of bonus is changed, a new winning probability of bonus is determined, and setting information including the new winning probability of bonus is sent to the gaming machine which sends the start information. When the gaming machine receives the setting information, the winning probability of bonus is renewed based on the setting information. It is determined whether or not bonus is won based on the renewed winning probability of bonus. If it is determined that the bonus is won, a predetermined number of gaming media is provided.