Best Jackpot Slots: Top UK Progressive Jackpot Slot Sites 2024

Our casino experts have reviewed and ranked the best jackpot slots in the UK:

Top jackpot slots online casinos UK

The best online casinos will feature top jackpot slots selections. Our experts recommend their favourite UK jackpot slots sites and jackpot slots to play.

1. Mr Vegas

Mr Vegas is one of the best slot sites for jackpot slots. We recommend the following jackpot slots:

Our favourite jackpot slot to play on Mr Vegas

We're drawn to the Ancient Fortunes Poseidon Wowpot Megaways slot. It offers the Megaways mechanic, providing varying symbol combinations on each spin which increases winning opportunities.

We also recommend The Wheel of Vegas feature with three exclusive jackpots:

• Mega Jackpot
• Major Jackpot
• Mini Jackpot

2. BetMGM

BetMGM is one of the best new slot sites with 70 jackpot slots. Here are our top jackpot slot picks:

Our favourite jackpot slot to play on BetMGM

Our top pick, Cash 'N Riches, offers more than just a progressive jackpot. With the Megaways mechanic, there are varying ways to win on every spin, increasing the chance for big wins. 

The WOWPOT! feature is another highlight, offering multiple jackpot tiers - Mini, Minor, Major and Mega - increasing the chance to win significant prizes.

3. Grosvenor Casino

Grosvenor Casino offers a wide-ranging selection of jackpot slots, including Daily Jackpots, Mega Jackpots, and Jackpot King. Here are our top picks from each category:

Our favourite jackpot slots to play on Grosvenor Casino

Rainbow Jackpots

We were drawn to its Symbol Swap feature, which changes symbols on the reels, boosting winning chances.

Megajackpots Wolf Run

One unique feature is the progressive jackpot, which continually grows as players wager, increasing the chance of significant wins with every spin.

Goonies Jackpot King

The 'One-Eyed Willy's Riches' feature offers players the chance to uncover hidden treasures and win big.

4. LeoVegas

For players who prefer to play jackpot slots on the go, we recommend the LeoVegas app. Our favoured LeoVegas jackpot slots are:

Our favourite jackpot slot to play on LeoVegas

In Mega Jackpots Mistress of Egypt, players can chase a progressive jackpot with Expanding Wilds. This unique feature presents the chance to win a continuously increasing jackpot prize. Additionally, Expanding Wilds can cover entire reels, increasing the potential for big wins.

Types of Jackpot Slots

If you enjoy playing online slots and appreciate the potential for big wins, progressive jackpot slots might be a good fit for you. 

These games come in all shapes and sizes, from mini jackpots to million-pound prizes. Check out the most popular types of jackpot slots below.

Progressive jackpots: 

Offering the highest value prizes of any jackpot slot, progressive jackpots pool together a portion of every bet made on any game that uses a single shared network. 

• Example: Mega Moolah by Games Global (Microgaming) 
• Unique feature: The biggest progressive jackpots begin with a £2million seed and can reach eight-figure sums

Fixed jackpots: 

These basic jackpot slots have a constant, pre-set value that doesn’t fluctuate based on player activity. Essentially, the grand prize will remain the same. 

• Examples: Mega Joker by NetEnt, Break da Bank by Microgaming
• Unique feature: Players know what they stand to win

Local jackpots: 

Local jackpots pool the bets made by players at the same casino, which can only be won at that particular casino site.

• Example: 3 Witches by The Stars Group, only available at PokerStars Casino
• Unique feature: Operate similarly to progressive jackpots but have a higher payout frequency

Must-Drop/Win jackpots:

Also known as a Daily Drop, Must Win or Hot Drop, Must Drop jackpot slots have a progressive prize pool that will pay out before the total reaches a given amount.

• Examples: Mega Dragon and Pirates Plenty by Red Tiger
• Unique feature: As the prize pool edges towards the set drop amount, knowing it may be triggered at any moment can make for exciting gameplay.

Multiple jackpots: 

As the name suggests, this jackpot slot offers multiple prizes of increasing value. Multiple jackpots can be fixed or progressive.

• Examples: Immortal Romance Mega Moolah by Games Global (Microgaming), Aurora Wilds by Neon Valley Studios
• Unique features: Multiple jackpots with varying volatility levels give you more opportunities to score a decent win.

Top jackpot slots at UK casinos

Offering eye-watering prizes on top of exciting slot features and fun themes, it's no wonder jackpot slots are a common feature of almost every online casino. 

With so many jackpot variants, software developers and volatility levels, we've listed some of the most popular jackpot slots below to help you get started.

1. Mega Moolah – RTP: 88.12%

Released in 2006, this Games Global slot was one of the first online progressive jackpots. Almost two decades later, it still reigns supreme as the most famous jackpot slot, boasting regular multi-million payouts across its expansive franchise. Building on the original game's success, Games Global has released numerous spin-offs, including Thunderstruck II Mega Moolah, Absolootly Mad: Mega Moolah and Mega Moolah Megaways.

2. Mega Fortune – RTP: 96.6%

Following Microgaming's popularity, NetEnt has developed an impressive line of jackpots with equally interesting prizes. Mega Fortune is a 2009 release focusing on the lifestyle of a high roller. It's a very fitting theme, considering the maximum jackpot frequently reaches the millions. Though its £250,000 default seed is lower than the Mega Moolah slot, it remains a firm favourite with many casino fans. 

3. Mega Fortune Dreams – RTP: 96.4%

A sequel to Mega Fortune, this 2014 NetEnt release contains the same luxurious theme as its predecessor and offers an equally impressive progressive jackpot. The medium volatility makes Mega Fortune Dreams a standout slot. It is more budget-friendly for players with a limited bankroll who still want to chase their mega-fortune dreams.

4. Divine Fortune – RTP: 96.7%

Did we mention NetEnt makes very popular progressive jackpots? Yet another famous link in the NetEnt jackpot chain, Divine Fortune, is a 2017 release that transports players back to the world of Ancient Greece. Its high volatility means longer waits between wins but chances of bigger payouts if you're patient. 

5. Hall of Gods – RTP: 95.7% 

The fourth and final NetEnt slot in this list, Hall of Gods, also has a divine theme, but this time you're transported to the realms of the Nordic gods. With a low-to-medium volatility, Hall of Gods is great for budget bettors. However, that's not to say it doesn't pay its winners well. The game has an average jackpot of £5.3 million, which is enough gold to capture your attention.

Strategies for Playing Jackpot Slots

Some casino games, such as poker and blackjack, have an element of skill and control. You can learn to detect when the game is going in your favour and - more importantly - when to fold your hand. 

However, there are no such opportunities when it comes to jackpot slots. 

Every jackpot slot (and every regular online slot machine for that matter) is built using a Random Number Generator (RNG). The RNG ensures that every single spin has a fair and random outcome, which can’t be interfered with by a casino, player, or software developer.

Unfortunately, this means there is no way of guaranteeing a jackpot win. That said, there are some tactics you can employ that will help your gameplay last longer, which, in turn, may give you more chances to hit a winning spin. The most important thing is to know when to quit and stop chasing the win.

Understand the game

This may seem obvious, but a new player often selects a game randomly, places high stakes on features they don’t understand, and loses their entire bankroll within a few spins. Try games on demo mode and get to know the in-game features, hit frequency, bonus rounds, and any other elements that might impact your chances of a win.

Stick to a set budget

Casino bankroll management is essential if you want to play jackpot slots. Only select games you can afford to play. While high-volatility slots may be appealing for their generous jackpots, the likelihood of hitting a winning spin is dramatically lower than a low or medium-volatility game. If you’re on a budget, it’s best to pick a jackpot slot with lower volatility to increase your chance of smaller but more frequent wins. 

Choose high-RTP games

Again, a good strategy to secure more frequent winning spins is to choose a game with a higher Return to Player (RTP) percentage. With their multi-million pound jackpots, the likes of Mega Moolah are highly appealing. However, with an RTP of just 88.12 per cent, you need a very flexible bankroll to play such a volatile game. It’s better to choose games with an RTP above 95 per cent.

Mobile Jackpot Slots UK

Mobile casinos have become increasingly popular in the UK, and it’s easy to see why. They offer easy access to your favourite games anywhere and anytime.

Many casinos have separate casino apps, making it even more convenient to set the reels spinning. Plus, some UK casinos even offer exclusive mobile-only bonuses and promotions.

As mobile casinos grow in popularity, so do mobile jackpot slots. Some mobile jackpot slots have the “Auto Play” feature.

Set a budget and hit the auto button, and you can leave your device to play through the pre-set amount of spins while you get on with whatever else you need to do. Another benefit of mobile jackpot slots is that you can access them on the move. This is particularly useful if you’re playing a 'Must Drop' jackpot about to land. 

Biggest Jackpot Slot Payouts

Jackpot slots, particularly those with a progressive prize pool, can award life-changing sums of money with a single spin. 

Much like the chances of winning the lottery, the likelihood of hitting a mega jackpot is over a million-to-one. But below are a few jackpot slots on which some very lucky UK players hit a winning spin.

• Games Global’s Mega Moolah slot - £13.2 million at Betway Casino
• Jackpot King’s King Kong Slot - £5.4 million at Betfred Casino
• NetEnt’s Mega Fortune slot - £6.2 million Jackpot
• NetEnt’s Hall Of Gods slot - £6.3 million Jackpot at Casumo Casino
• Playtech’s Jackpot Giant slot - £4.5 million at Gala Bingo

Top Jackpot Slots Game Developers

Hundreds of software developers are constantly creating new slot games, many of which come with very enticing jackpot prizes. 

However, a few industry-leading brands have captured the attention of gamblers around the UK, and whose iconic slots remain as popular today as when they were released.

From innovative in-game features to HD graphics and mega jackpot prizes, the following brands are the minds behind the most popular jackpot slots available at reputable online casinos. 

• NetEnt
• Games Global (formerly Microgaming)
• Playtech
• Play’n GO
• IGT
• Red Tiger
• Betsoft
• Yggdrasil
• Hacksaw Gaming
• Big Time Gaming

Remember to Gamble Responsibly

It’s incredibly important to practice responsible gambling when you engage with jackpot slot sites.

It is never guaranteed that you’ll win anything in a casino game, let alone a jackpot prize. If you’re struggling to stay within your budget, you can set limits on your account, such as bet, deposit and loss limits. 

If you think you may be developing a gambling problem, there will be self-assessment tools available in the casino’s responsible gambling section. 

You can self-exclude from any or all online casinos for a given time, before which you will be unable to open an existing account or create a new one. There are many ways for UK bettors to seek help. You can contact the following organisations for more information:

• GambleAware
• GamCare
• Gamblers Anonymous

Always prioritise enjoyment over winning. If you become frustrated or angry with your session, the easiest way to correct this is to stop the game and log off.

Best Jackpot Slots UK - The Independent View

Ultimately, choosing best UK jackpot slot sites will come down to your personal preferences as a casino player. 

Jackpot slots in the UK offer diverse types, including fixed, progressive, local, must-drop and multiple jackpots, catering to various player preferences. 

While fixed jackpots offer lower but more consistent prizes, progressive jackpots can reach multi-million sums. 

However, it's important to understand game mechanics and manage your budget, while you may wish to select games with higher RTPs for improved chances.