Progressive Jackpot Slots
Play the Best Progressive Jackpots in the UKProgressive jackpot slots feature prize pools that grow with every bet until one spin wins the lot. Below, we've rounded up some of the most popular UKGC-licensed progressive jackpots available to UK players — how they work, what to expect, and where to play.
Our favourite progressive jackpot slots
Mega Moolah
Games Global
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Mega Fortune
NetEnt
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Jackpot Giant
Playtech
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Hall of Gods
NetEnt
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Age Of The Gods
Playtech
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Fishin' Frenzy Jackpot King
Blueprint Gaming
To the casino ReviewAll you need to know about Progressive Jackpot Slots in the UK
Simply put, a progressive jackpot game is a slot in which the prize pool increases with every qualifying stake placed. It keeps growing until the jackpot is triggered and awarded as a grand prize. Each bet contributes a small amount to a shared pot, steadily increasing its value over time.
When the jackpot is not won, the total continues to rise based on a predefined contribution model set by the game provider. Once a player hits the winning combination, the jackpot resets and the cycle begins again.
You may have seen these large progressive jackpots promoted by UKGC-compliant casinos in their game sections.
| Did You Know? |
|---|
| In 1986, IGT became the first gaming provider to introduce progressive jackpot games in its portfolio. A year later, in 1987, a player won the jackpot of $4,988,842.17. |
Top 6 Progressive Jackpot Slots UK
We have thoroughly reviewed the best progressive jackpot games available on licensed and reputable online casinos in the UK.
| Game | Studio | Jackpot Tiers | Biggest Win | Jackpot Frequency | RTP | Where to Play | |
|---|---|---|---|---|---|---|---|
| 1 | Mega Moolah | Games Global | Mega, Major, Minor, Mini, Mega Vault, Millionaire | ~£11.49M | Random trigger | 88.12% | 7Bet |
| 2 | Mega Fortune | NetEnt | Mini, Midi, Major, Mega | ~£17.86M | Very rare (progressive network drop) | ~96% | Pink Casino |
| 3 | Hall of Gods | NetEnt | Mini, Midi, Major, Mega | ~£6.37M | Random trigger | ~95.70% | Casumo |
| 4 | Jackpot Giant | Playtech | Progressive tiers (varies) | ~£1.69M | Land 5 wilds on the first payline | ~91.25% | Paddy Power |
| 5 | Fishin’ Frenzy Jackpot King | Blueprint Gaming | Jackpot King tiers (varies) | ~£2.3M | Land 5 Jackpot King overlay symbols | ~93.32% | Boyle Casino |
| 6 | Age of the Gods | Playtech | Power, Extra Power, Super, Ultimate | ~£780k | Random trigger | ~95.43% | BetMGM |
ADDICTION RISK WARNING
Gambling should be done for entertainment purposes only, but for some, this can lead to harm. Always check in with how gambling makes you feel and keep an eye out for common warning signs:
-Feeling anxious when you cannot gamble
-Chasing your losses
-Using gambling as a means of escape
If you are struggling, then we urge you to seek support immediately. In the UK, many organisations can offer you free help:
GambleAware 0808 8020 133
GAMSTOP offers a free self-exclusion service
Our Top 6 Progressive Jackpot Slots Reviewed
Mega Moolah
Developed by Games Global, Mega Moolah is one of the most versatile and biggest progressive jackpot games. According to its official site, a UK-based player won a mega jackpot of £11,498,211 in 2025 on Betfred Casino. Compared to some modern slot games, Mega Moolah has a lower RTP of 88.12% and a very retro-like game design with 5-3 reels and 25 paylines.
Under the UK Gambling Commission’s stake limits introduced in 2025, the maximum online slot stake is £5 per spin for players aged 25+ and £2 per spin for players aged 18–24. The Mega Moolah jackpot is randomly triggered. Players do not need to land a particular combination to win, although they must place a qualifying bet to be eligible for the jackpot.
Mega Moolah features several progressive jackpot tiers, including Mega, Major, Minor, Mini, Mega Vault, and Millionaire. At the time of writing, the Mega jackpot has grown to over £10.5 million, making it one of the largest progressive jackpots available in online slots.
Mega Fortune
Launched back in 2009, Mega Fortune is a slot game with a 5×3 layout and 25 betways. The theoretical RTP is 96%, but it can differ depending on the game’s mode. NetEnt developed this game with features like a progressive jackpot, free spins, and Spin the Wheel.
Mega Fortune has awarded several large progressive jackpots, including a record win of about £17.86 million in 2013, which is widely cited as a Guinness World Record for an online slot jackpot at the time; more recently, it has also produced multi-million-pound wins in the range of around £4 million, depending on the specific jackpot drop and timing.
One of the reasons this game is a great choice is that it offers a good Return to Player (RTP). It has low volatility, meaning the chances of winning are realistic. If you hit the jackpot at the right moment, there’s a real opportunity to win big. Additionally, the free spin feature is very engaging and adds to the interest of the game.
Hall of Gods
Hall of Gods is another classic triple jackpot slot developed by NetEnt. Launched in 2010, the game has an RTP of 95.70, a 5-3 layout, and the hit frequency sits mid-high at 37%. The maximum bet on a spin for UK players is £5.
According to iGaming Today, the biggest jackpot won on Hall of Gods was in 2017, when a British player won £6.37 million. The jackpot is not triggered by a specific symbol combination. Instead, after any qualifying spin, the game can enter a random jackpot feature event. The game is available to play on 7Bet.
With a range of features, a solid RTP, a high maximum win, and three progressive jackpots (Mini, Midi, and Mega), Hall of Gods is a popular slot among players, offering regular win potential alongside the chance to land the Mega Jackpot.
Jackpot Giant
Jackpot Giant is a slot game developed by Playtech. It has a return to player (RTP) of 91.25%, although this can vary depending on the game’s mode. The game features a 5-3 layout with a total of 50 paylines, and it is categorised as low volatility. Under the UK Gambling Commission’s stake limits introduced in 2025, the maximum online slot stake is £5 per spin for players aged 25+ and £2 per spin for players aged 18–24.
Jackpot Giant is available at Paddy Power Casino, where players can compete for jackpots exceeding one million pounds. According to Playtech, a player in London won a jackpot of £1,693,062.87, which was 376,236 times their stake. The seven-figure win came from a £4.50 spin and occurred on 8 July 2019.
Excluding the jackpot, the game has several features like bonus games, free spins, and also includes wild and scatter symbols, which make the game more entertaining for UK players.
Fishin' Frenzy Jackpot King
Fishing Frenzy Jackpot King was developed by Blueprint and launched in 2020. The game has a return to player (RTP) of 93.32% and features low variance. It has a 5-3 layout with 10 betways. It is a relatively new game compared to other classic jackpots.
According to Sussex World, a 46-year-old from Sussex won £2.3 million while playing Fishin’ Frenzy Jackpot King. This is the maximum jackpot win recorded for this game so far. The game has a minimum bet of £0.10 and a maximum bet of £5 for players aged 25+.
Top licensed UK casinos to play Progressive Jackpot games include Paddy Power, Bet UK, and Boyle Casino. While jackpots can be rare, these games offer exciting bonus features like cash collectors, free spins, and bonus games to enhance your experience.
Age Of The Gods
Age of the Gods is one of Playtech’s most played games, launched in 2016. The game has a theoretical return to player (RTP) of 95.98%, although this can vary depending on the mode of play. One of the standout features of this game is its 25 paylines, which pay both ways on a 5-3 layout.
The min bet is £0.5, and the max goes up to £5. The game features four progressive jackpot tiers: Power Jackpot, Extra Power Jackpot, Super Power Jackpot, and Ultimate Power Jackpot. The Power Jackpot awards prizes of up to £500 every hour on average, while the Ultimate Power Jackpot typically pays out around £100,000 every six weeks.
According to official reports from Playtech, a William Hill player won a jackpot of £738,000, along with an additional £3,000 bonus. The anonymous winner achieved this impressive payout while playing with just £1 per spin.
This event marks the largest progressive jackpot win at William Hill, where each spin was valued at £1. The game is also available at Paddy Power for UK casino players.
Jackpot Networks Explained
Here are three well-established progressive jackpot networks that operate under UK Gambling Commission (UKGC) oversight, each provided by quality studios.
Mega Moolah Series by Games Global
Launched by Games Global in 2006, Mega Moolah is the industry’s original “millionaire maker”. It is a networked progressive jackpot slot with an African safari theme. It runs on four pooled jackpot tiers — Mini, Minor, Major, and the headline Mega — triggered randomly via a bonus wheel on any spin, with the Mega jackpot seeding at around $1 million and often climbing into the tens of millions before it drops.
Per reported figures, the network has paid out well over £1 billion across its history, and it holds the Guinness World Record for the largest online slot payout, a £13.2 million win by UK player Jon Heywood in 2015. Reporting also notes that the brand has expanded across variants such as Thunderstruck II Mega Moolah and Immortal Romance Mega Moolah, all feeding the same shared pool.
Age of the Gods Series by Playtech
Created by Playtech and launched in 2016 with a Greek mythology theme, Age of the Gods has grown into one of the industry’s largest progressive networks. It now spans over 25 titles, including spin-offs like Furious 4, Wonder Warriors, and a Norse mythology sub-series.
Industry sources report the Ultimate Power jackpot typically seeds around £79,000 and averages roughly £474,000 per win, landing approximately every 45 days, with the record payout reaching just under £842,000. Beyond the core slots, Playtech has extended the brand across live casino formats too, with linked Bonus Live Roulette and Bingo variants feeding into the same jackpot pool.
Jackpot King Series by Blueprint Gaming
Jackpot King is Blueprint Gaming’s proprietary progressive jackpot network, linking well over 70 titles including King Kong Cash, Fishin’ Frenzy, and Anubis Rising to a shared prize pool. It runs on three tiers: a Royal Pot that must drop before reaching £3,500, a Regal Pot capped at £35,000, and the uncapped top-tier Jackpot King prize itself, which has recorded multi-million-pound wins.
Industry sources note that in January 2024, the network paid out over £4 million on King Kong Cash Go Bananas, underlining its reputation as a genuine rival to Microgaming‘s Mega Moolah in the UK market. Blueprint has since expanded its jackpot offering further, launching the companion Rapid Fire Jackpots system in June 2024.
Dream Drop by Relax Gaming
Launched by Relax Gaming in May 2022, Dream Drop is a networked progressive jackpot system that connects titles such as Temple Tumble 2, Wild Chapo 2, and Bonsai Dragon Blitz to one shared prize pool.
According to Relax Gaming, the network runs on a six-tier structure, with the Mega and Major jackpots designed as “must-drop” prizes that are guaranteed to pay out before hitting a set ceiling, plus a Daily Jackpot that lands three times every day.
Per company statements, the system reseeds at a 75% rate. It is funded entirely by Relax Gaming rather than casinos. Industry coverage notes the product has now produced 30 Mega jackpot winners, with the payout threshold lowered to €2 million to keep wins coming more frequently, including a recent £1.64 million Mega win reported through a bet365 partnership in early 2026.
How Do Progressive Jackpots Work?
Progressive jackpots work with a simple function. Over time, as players place bets, a predetermined amount is added to the jackpot pool, either by the house, the provider, or both.
For example, in the case of Mega Moolah, the provider also contributes to the seed amount. This contributes to the growing jackpot fund, meaning that a popular game has a higher chance of featuring a huge jackpot prize.
The amount continues to grow until a player wins the entire jackpot with a lucky spin. After that, the jackpot amount resets to the base amount, and the entire mechanism starts over. Some games operate within a network that includes multiple casinos. It is impossible to predict where the big win will occur or which casino is more likely to host it.
| What is Jackpot Seed Amount? |
|---|
| A jackpot seed amount is the minimum starting value set for a progressive jackpot before it begins growing. The casino or game provider usually funds this initial amount, and the jackpot increases as players place qualifying bets. Once a player wins the jackpot, the prize is reset to the seed amount and starts building again. |
There are several types of progressive jackpots:
| Jackpot Type | How It Works |
|---|---|
| Standalone | Linked to a single game or machine, so only bets placed on that game contribute to the jackpot. |
| Local (In-house) | Shared across multiple games or machines within the same casino, allowing the jackpot to grow faster than a standalone prize. |
| Wide-area (Network) | Connected across multiple casinos or operators, creating the largest progressive jackpots, often worth millions of pounds. |
| Must-drop | Guaranteed to be won before the jackpot reaches a predetermined value, meaning it will “drop” within a set prize range. |
The larger the player network contributing to the jackpot, the faster the prize pool typically grows.
UK Rules for Progressive Jackpot Bonuses
If you play at a UK-licensed online casino, progressive jackpot promotions must follow the latest UK Gambling Commission rules. Since 19 January 2026, wagering requirements on any casino bonus are capped at 10x the bonus amount, making bonus terms clearer and easier to complete.
To know what wagering is and how it works, check this page on wagering requirements.
In most cases, progressive jackpot wins are paid as real cash, not bonus funds. If you win a jackpot using bonus money or free spins, the winnings may be subject to specific terms and conditions, so always check the bonus rules before playing.
For UK players, it is also worth noting that Bonus Buy features are banned on UK-licensed online slots. If a progressive jackpot game includes a Bonus Buy option in other jurisdictions, UK players will not be able to access it.
You can verify whether a casino is licensed by searching the official UK Gambling Commission public register before signing up.
Odds & Tips for UK Players
The jackpot trigger in many progressive jackpot games is intentionally designed as a very low-frequency event. Estimates suggest that the odds of hitting a jackpot in a specific game can be approximately one in ten million spins. This low likelihood adds to the excitement and anticipation for players, as they hope for that rare moment of a big win.
Online slots are games of chance. There are no guaranteed wins — only the potential for one, determined entirely by random outcomes. No strategy can improve your odds, especially on progressive jackpots, so be wary of any claims suggesting otherwise.
- A minimum bet may still qualify for jackpot eligibility or bonus features in some games, so there’s no need to stake more than you’re comfortable with in the hope of better odds.
- Always set a budget before you play, and stick to it regardless of whether you’re winning or losing. This is the most responsible way to enjoy online games.
- Always check a game’s volatility before playing. Low volatility tends to mean smaller, more frequent wins, while high volatility tends to mean rarer, larger wins. Understanding this can help you gauge the risk and reward profile of a game, and choose one that suits your budget.
- Online gaming is unpredictable and cannot be controlled with any strategy; outcomes are based on chance. If you win, it is fine, but if you do not, avoid chasing losses or believing there is a guaranteed way to beat it.
Biggest Jackpot Wins of All Time
| Game | Amount | Casino | Date |
|---|---|---|---|
| Mega Moolah | ~£17.86 million | Betsson / PAF (Finland) | 2013 (Jan) |
| Mega Moolah | ~£13.21 million | Betway Casino (UK) | 6 Oct 2015 |
| Mega Moolah | ~£11.50 million | Betfred Casino (UK) | 5 Jun 2025 |
| Mega Fortune | ~£17.86 million | PAF Casino (Finland) | 2013 |
| Hall of Gods | ~£6.37 million | Online Casino (UK player) | 2017 |
| Jackpot Giant | ~£1.69 million | Paddy Power Casino | 8 Jul 2019 |
We’ve covered everything you need to know about progressive jackpot slots for UK-based players. Mega Moolah, in particular, is widely regarded as one of the most popular and well-established titles, thanks to its long track record of jackpot wins and player trust.
That said, things can change; a new title could well take the jackpot crown in the future. To clarify, a progressive jackpot is simply a feature where the prize pool grows over time until it’s won. A game may include other bonus features alongside it, but the jackpot remains its standout element.
You can also explore Megaways slots, along with high RTP and Hold and Win slots. At CasinoHawks, our experts thoroughly review all slots on our site and share our findings with you.
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