A "progressive jackpot" is a jackpot that increases with each game played on any given slot. A portion of every wager you place in the slot contributes to the jackpot, which steadily increases. There are different types of progressive jackpots that vary in size and the network on which they are available. Some progressive jackpots are local and limited to a single casino, while others are part of a larger network and increase with the wagers of all casinos that are part of that network. In order to win a "progressive jackpot", players usually have to land a certain combination of symbols on the reels or activate a bonus feature. The greater the size of the jackpot, the greater your chance of winning it will be, but the house edge is also higher than in other slots. Although a progressive jackpot is more difficult to win, these kinds of jackpots offer players the chance to win huge prizes, often in the millions. Therefore, progressive jackpots are very popular with many players.