The present invention provides methods and devices for implementing progressive systems on networked gaming machines. Some implementations allow a target progressive pool size to be selected and apply payouts such that the actual progressive pool size is not likely to exceed greatly the target progressive pool size. Some implementations control the actual progressive pool size by applying a function to control percentages of the progressive pool size payable to players. The function may be a function of a current progressive pool size, target progressive pool size and bet size. The function may cause relatively higher percentages to be payable to players when the current progressive pool amount is greater than a target progressive pool size and relatively lower percentages to be payable to players when the current progressive pool size is less than or equal to a target progressive pool size.