In January 2013, a fortunate player in Paf Casino won a €17,860,868 progressive jackpot while playing the slot machine Mega Fortune from the game developer NetEnt. At the time of writing, this is still the largest progressive jackpot payed out by a slot machine in an online casino.

Progressive jackpots are jackpots that grow bigger and bigger until they pay out. Some of them start over again from scratch, but most do not – the casino or software developer managing the progressive jackpot will put in a certain amount of money to get the jackpot started and make sure that there is always an appealing amount of money in it for the slot players.

Progressive jackpot networks

A progressive jackpot fed only by players putting money into one particular slot machine would not grow very quickly. Therefore, casinos started to connected numerous slot machines to the same progressive jackpot. Eventually, networks spanning several casinos were created, making the progressive jackpots grow even quicker. Today, you can visit online casinos and play on slot machines where the progressive jackpots are fed simultaneously by players in over a hundred different online casinos.

Big wins

Here are a few examples of big progressive jackpots that have been payed out to slot machine players in online casinos.

The Mega Fortune slot machine from NetEnt

One of the most famous slot machines with a progressive jackpot is Mega Fortune from the game developer NetEnt. This slot actually have several progressive jackpots for your to win, starting at various levels. The one that have the most money in it when it starts is the Mega Jackpot, and this is also a networked progressive jackpot that is fed by players in a multitude of different online casinos. The Major Jackpot and the Rapid Jackpot are progressive jackpots unique to each individual online casino, and they start at a much lower level than the Mega Jackpot.

Mega Fortune is a 5-reel slot with 25 betlines, and the theme is a life of luxury. While you are playing the basic game, you can trigger a second-screen bonus game and it is within this bonus game that progressive jackpots can be won.

The Mega Moolah progressive jackpot from Microgaming

Mega Moolah Mega is the most famous progressive jackpot managed by the large game developer Microgaming. The largest payout so far occurred in October 2015, when the Mega Moolah Mega Jackpot paid £13,212,882 to a player in Betway Casino.

This jackpot is fed by players in a multitude of online casinos, and it is actually fed by not just one but five different slot machine games: Mega Moolah, Mega Moolah Summertime, Mega Moolah Isis, Mega Moolah 5 Reel Drive, and the Dark Knight.

Mega Moolah: Animal-themed slot

Mega Moolah Summertime: Beach-themed slot

Mega Moolah Isis: Ancient Egypt-themed slot

Mega Moolah 5 Reel Drive: American Trucker-themed slot

Dark Knight: Batman-themed slot