A matching game is triggered for play by a plurality of players while the players are performing a transaction. A matching rule is established for playing the matching game and a jackpot pool is established for awarding prizes to the players. The players are allowed to initiate a session by logging onto a gaming machine to perform the transaction and the players are identified. A selected set of symbols are established for each player and a match set of symbols are generated. The matching game is triggered in response to a predetermined trigger where only the players in the current session are eligible for the matching game. The match set of symbols are compared against each selected set of symbols. The prize is responsively awarded from the jackpot pool to each player whose selected set of symbols satisfies the matching rule.