The Biggest Progressive Jackpot Slots & Where You Can Play Them

A progressive slot game pools a fraction of each bet to build up a large, cumulative jackpot, rewarding players with potentially life-changing sums. Unlike traditional slots, the jackpot increases with each bet, enticing players with its growing prize. Some of these have run into the millions, as the random combination required to win occurs very rarely!

Some of the biggest progressive jackpot slots

WowPot Slots - £42m Won in 2023

The WowPot jackpot by Microgaming is a four-tier progressive system with Mini, Minor, Major, and Mega jackpots. This jackpot is integrated into several slot games, each providing a unique path to potentially winning one of the tiers. So you can play on games like Wheel of Wishes, Book of Atem, Sisters of Oz, Sherlock & Moriarty & Queen of Alexandria. Each game contributes to the WowPot jackpot pool, creating a larger network that contributes to the chance to win a significant life-changing progressive jackpots.

Play WowPot Slots at Bet365

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Mega Moolah - £13m UK Won in 2015

Mega Moolah is a progressive Millionaire Maker jackpot slot. For that reason, it retains more wagers than most games to build up the jackpots. These are won less frequently so can be treated more like lottery slots, in that they're OK to have a go for a chance of winning big, but don't invest too big thinking you can win millions. The game is famous for huge jackpots. Launched in 2006, it has simple graphics and fun music. It has 5 reels and features like Double Wild Wins, Free Spins, and a Jackpot Bonus Game. Wilds double wins, and free spins can multiply wins by 3 or 6 times. A special wheel can randomly give you a chance to win one of four big jackpots. Bets range from £0.25 to £6.25. Despite its age, Mega Moolah's big prizes keep it popular.

Play Mega Moolah at Glossy Bingo

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Mega Fortune - £15m Won in 2013

Mega Fortune is a lavish-themed online slot by NetEnt, featuring a progressive jackpot that highlights riches and wealth through symbols like yachts, champagne, and limousines. This slot operates on a 5-reel, 3-row layout with 25 fixed paylines. It offers an RTP of 96.6% and low volatility, making for frequent wins. Players can place bets ranging from £0.25 to £50, aiming for the maximum payout of 2,162x their stake. Mega Fortunehas three progressive jackpots, accessible via a bonus round that's triggered by landing three or more bonus symbols on an active payline. The game also includes a free spins round, offering up to 10 free spins with multipliers up to 5x, further enhancing winning potential.

Play Mega Fortune at All British Casino

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Jackpot Giant - £9m UK Won in 2018

Jackpot Giant is an online slot developed by Playtech, featuring a 5-reel, 3-row layout with a Stone Age theme, highlighted by a caveman character. The game has big progressive jackpot that often sites well above £5m if it hasn't been won for a while. Special features include the potential for larger prizes when two or more wilds contribute to a payline win, and the presence of scatters that can multiply the awarded prize. The Giant Bonus feature is triggered by two bonus symbols on the side reels, allowing players to pick from six volcanoes for a prize, with the possibility of receiving an extra pick.

Play Jackpot Giant at William Hill Vegas

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Jackpot King Deluxe - £4m UK Won in 2019

The Jackpot King Deluxe Pot System offers a progressive jackpot feature across various slots, activated randomly by landing 3 overlay symbols on the first three reels. Players collect Crown symbols to climb a win ladder, with 15+ Crowns unlocking the Wheel King section, where jackpots are won. The feature includes options to spin again, collect bonuses, or advance to the Wheel King round directly. Jackpots increase with player stakes, starting from seed amounts funded by the operator, with a 0.38% stake contribution. Winning is possible on any spin, regardless of bet size, with jackpot chances proportional to the stake.

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A quick Guide to Progressive Jackpots

Online slots sites in the UK categorise slots into two main types: classic slots and jackpot slots, with the latter often featuring the much-coveted progressive jackpots. Unlike traditional fixed jackpots, progressive jackpots increase in value with every bet placed, without a cap, until a lucky player wins the entire sum. This system allows for jackpots that can reach astronomical amounts inot the millions, rivalling even some of the largest lottery prizes in terms of size.

Understanding Progressive Jackpots

Progressive slots can be categorized not only by their jackpot sizes but also by how these jackpots are accumulated and distributed. This differentiation plays a crucial role in the potential winnings a player can expect and the strategy they might use when selecting a game.

Types of Progressive Jackpots

How They Work: A small portion of each bet made on a progressive slot contributes to the jackpot, allowing it to grow steadily over time.

  1. Independent Progressive Jackpots:

    • These jackpots are confined to a single slot machine or game.
    • The jackpot grows with bets placed on that specific game only.
    • While the jackpot amounts can be substantial, they are generally smaller than those linked across multiple games or casinos.
  2. Pooled Progressive Jackpots:

    • Pooled, or networked, jackpots accumulate across multiple games or machines, sometimes even across different online casinos.
    • A portion of each bet made on any of the networked games contributes to a central jackpot.
    • This system allows for the jackpot to grow more quickly and reach much larger sums, often resulting in life-changing amounts.
    • The chances of winning a pooled jackpot are slimmer due to the larger number of participants, but the potential reward is correspondingly greater.

Winning a Progressive Jackpot The allure of winning a progressive jackpot lies in the life-changing amounts at stake, often reaching millions. There are various ways to hit a jackpot:

  • Play the Maximum Stake: Some slots require the maximum bet for a chance at the jackpot, though many offer multiple levels of jackpots to cater to different budgets.
  • Random Wins: Jackpots can be awarded randomly, regardless of the symbols displayed.
  • Symbol Combinations: Aligning a specific combination of symbols on a payline can trigger the jackpot.
  • Bonus Games: Many slots feature bonus rounds where the jackpot can be won through different challenges, such as spinning a prize wheel or matching symbols.

The Odds and the Appeal While the chances of winning a progressive jackpot are slim, the potential rewards are enormous. The odds of winning vary by game but are generally more favorable than winning a lottery jackpot. This balance of difficulty and reward maintains the widespread appeal of progressive slots.

Finding Progressive Jackpots Online casinos typically organize their slots to help players find progressive jackpot games easily, often under a dedicated tab. These games display the current jackpot value, allowing players to choose based on the potential prize.

Conclusion Progressive slots offer the excitement of possibly winning huge sums of money from relatively small bets. While the odds are steep, the thrill of the chase and the dream of a massive payout continue to draw players to these games, making them some of the most popular offerings in online casinos.