The following wins from around the world rank among the biggest-ever jackpot wins. These lucky winners were playing online slot machines when they won their life-changing jackpots. 

Here, you can find out which online slots have paid out the biggest jackpot wins in the history of online slots.

What are progressive jackpot slots?

You have two different types of jackpot slots; fixed coin jackpot slots and progressive jackpot slots. A progressive jackpot slot is an online slot machine that has a pooled jackpot that can climb to no fixed amount before being won, and a fixed coin jackpot slot is a slot that comes with a jackpot that is fixed at a certain amount (e.g., the jackpot is usually worth anywhere from 100x times your total stake up to around 50,000x times your total stake). 

Each time someone places a wager on a progressive jackpot slot, a small percentage of that stake will automatically be contributed to the progressive jackpot prize pool, which is why you can often see these jackpots climbing in real time when playing them. Don’t forget that progressive jackpot slots are often connected to vast networks of 100 or more online casinos, which is why the jackpots tend to climb so high. What makes these games so exciting is that the jackpots can be won at any time of the day, by any player, playing with any stake. 

Many of today’s biggest jackpots ever won have been won by players spinning the reels from as little as $/€/£0.25 to $/€/£0.50 per spin (or equivalent currency value. 

Biggest-ever jackpot wins in an online slot

Two of the most famous slots that have paid out the biggest jackpots over the past 15 years are the Mega Moolah online slot from Microgaming and the Mega Fortune online slot from NetEnt. When playing in their own local currencies, numerous lucky players have received the following big wins playing various almighty slot machines, such as:

  • $20,057,734 playing the Mega Moolah jackpot slot from Microgaming in January 2019
  • €19,429,358 playing Mega Moolah in April 2021
  • €18,915,721 playing Mega Moolah in September 2018
  • €17,860,868 playing the Mega Fortune online slot from NetEnt in January 2013
  • £15,183,085 playing the WowPot Mega Jackpot slot from Microgaming in April 2021
  • $16,495,060 playing Mega Moolah in April 2020
  • £13,212,882 playing Mega Moolah in October 2015
  • €14,697,069 playing Mega Moolah in August 2020

Other notable big wins

Some of the other big wins on the Mega Moolah slot occurred in May 2020 ($13,617,374), in March 2019 ($12,945,603), and in May 2022 (£12,792,526). Also, in October 2018, one lucky player netted a mouth-watering £9,411,049 playing the Jackpot Giant progressive jackpot slot from Playtech. 

As you can see, many people have won life-changing jackpots, and they all received their winnings in one single payout rather than in large installments over a certain period of time. To be in with a chance of winning one of these jaw-dropping progressive jackpots today, you need to be at least 18 years old, and you need to register an account at a fully licensed online casino.