A progressive jackpot is a type of jackpot that increases over time as more people play a particular game. A small percentage of each player's bet is added to the jackpot, which continues to grow until one player wins the prize. These types of jackpots can be found in a variety of games, including slot machines, video poker, and even some table games. Progressive jackpots can reach large amounts, making them a popular choice among players who are looking for the chance to win big.