A gaming system for conducting a wagering game includes a display for displaying a base game of the wagering game in response to receiving a wager input from a player and a controller coupled to the display. The controller is programmed to randomly increment during game play a bonus-time eligibility counter for a community bonus game, decrement the bonus-time eligibility counter as real time progresses, and render a player eligible to play the community bonus game if the bonus-time eligibility counter is greater than zero when a community bonus game is triggered.