Patent ID: 8613655

Claim:
A computer-implemented method to provide group play with multiple game devices, the method comprising: under the control of a group play coordinator computer system configured with executable instructions, for each of a plurality of game devices, obtaining eligibility information indicative of at least one characteristic related to a user of the game device; based at least in part on the obtained eligibility information, determining which of at least some of the plurality of game devices qualify to participate in a group play event before the group play event is triggered; based at least in part on a total number of game devices determined to qualify to participate in the group play event, determining an adjustment to a value that is indicative of a probability of triggering the group play event by any of the game devices qualified to participate in the group play event, where the adjustment to the value accommodates a variation over time in the total number of game devices that are determined to qualify to participate in the group play event by maintaining the probability of triggering the group play event constant regardless of the total number of game devices determined to qualify to participate in the group play event; and causing an adjustment of at least one group play event generator based on the determined adjustment to the value.