A jackpot prize is referred to as 'progressive' when it increases incrementally as players gradually contribute more to the jackpot amount through their play.
Progressive jackpot slots are very popular because they can reach very high amounts - some online slot jackpots grow to over $2 million!
Every online casino has some jackpot prizes on offer, but the jackpot amounts will differ in size according to the popularity of the casino software and the particular slot game.
We have listed the online casinos that offer various progressive jackpots for their slots, typically the progressive slots are the 3 reel slot games.
To the right we have provided a selection of the best online casinos with Progressive Jackpot slots.