Patent ID: 8353765

Claim:
A gaming system, comprising: a plurality of gaming machines each conducting a primary game; and a secondary game control section connected to the gaming machines for conducting a secondary game, the secondary game control section being provided with a plurality of data sets having different target investment amount between two triggerings of the secondary game, the secondary game control section being adapted to receive data related to a wager from each of the plurality of gaming machines and to calculate an average bet amount as a function thereof, where the secondary game control section selects one of the data sets as a function of the calculated average bet amount, and the secondary game control section determines whether the target investment amount associated with the selected one of the data sets has been met as a function of the average bet amount responsively detects a trigger condition of the secondary game if the target investment amount has been met, and pays out a secondary game award to one of the gaming machines in response to detection of the trigger condition.