A progressive jackpot is a type of jackpot that increases each time a game is played but the jackpot is not won. These are commonly found in slot machines, video poker, and other casino games. A small percentage of each bet made by players contributes to the total jackpot amount, allowing it to grow progressively larger until someone wins. Once the jackpot is won, it resets to a predetermined base amount and begins to grow again. This type of jackpot can often lead to very large payouts, attracting many players hoping for a big win.