An asynchronous persistent group bonus game system, method and apparatus may have a plurality of gaming machines including a first processor and a bonus server having a second processor. The first processor may be configured to: determine when a bonus game session event is triggered, transmit a bonus game session request to the second processor, and receive an end session notification from the second processor. The second processor may be configured to execute and maintain the always-on asynchronous persistent group bonus game, receive a bonus game session request from at least one of the plurality of gaming machines, instantiate a bonus game session inside the continuous asynchronous persistent group bonus game for the at least one gaming machine, determine when an end session trigger has been triggered for the bonus game session, and transmit an end session notification to the at least one gaming machine if it is determined that the end session condition has been triggered.