A jackpot wagering system includes a number of player terminals, a random event generator and an accumulation facility. Each player terminal is operable by a respective player to place a corresponding wager on one or more different turns of a game of chance, while the accumulation facility is responsive to placement of each wager to accumulate a portion thereof in an accumulation account; The random event generator is activatable by placement of each wager to generate a random event upon which an outcome of a turn of the game of chance is based, the outcome being one of a number of possible outcomes that includes a favorable outcome causing the player who placed that wager to win the contents of the accumulation account. The jackpot wagering system also includes an enrolling means capable of enrolling each player in a lottery during a predetermined time period as a function of that player's corresponding wagers on the one or more different turns of the game of chance, and a selection means activatable to randomly select one of the enrolled players as a winner of the lottery, the winner of the lottery being awarded the contents of the accumulation account.