There are a huge number of slot machines which are always going to be available to you when playing at an online casino site or at one of the new mobile casino sites and many of those slot games will offer some form of progressive jackpots.
In fact it is not only slot games which have progressive jackpots attached to them as you will also find many games such as blackjack, video poker and even roulette as well as several different casino poker games will also have progressive jackpots on offer on them.
However, whilst some of those progressive games are all linked together and networked at every single casino site offering those games, meaning those jackpots can be won at any casino, there are some casino games which have something known as a local progressive jackpot.
When you play a game offering a local progressive jackpot then that jackpot is only on offer on the games available at that one single casino site.
One thing that you will often notice when playing any game which does have a local jackpot is that the jackpot do not tend to be as large in value as some of the network wide progressive games, and that is due to their not being as many players playing those games and as such the jackpots tend to grow at a much lower rate than the network wide progressive games.
However, many local progressives jackpot games to tend to offer very regularly won jackpots and as such do not be put off playing those games as being random you could in a jackpot at any moment when playing them!