Gaming system and method for providing a bonus event triggered by a continuous communal game

A communal game is displayed by a gaming system. A plurality of gaming devices each enable a player to wager on plays of a primary game and determine an eligibility status. The communal game repeatedly generates at least one communal game symbol from a plurality of communal game symbols regardless of whether any player is wagering on plays of a primary game. The communal game triggers a bonus event based on the generated symbols. Any eligible gaming devices may participate in the bonus event. For each eligible gaming device, the gaming system applies at least one symbol or gaming element from the communal game to the primary game of the eligible gaming device. Each eligible gaming device provides an award based on any winning symbol combinations generated by application of the communal game symbol or gaming element.