UK Jackpot Slots & Where To Play Them

Online jackpot slots are very popular in the United Kingdom.

This page will guide you through the biggest jackpot slots and explain the different versions.

We will also examine the pros and cons of jackpot slots, show you how to win a jackpot, and much more.

If you are interested in the best jackpot slots, this is the page you need.

Play Jackpot Slots in these UK Online Casinos

Jackpot slots are popular, but not all UK-licensed casinos offer them to their players.

However, the following UK-licensed online casinos offer jackpot slots, score high in our reviews and are casinos we happily recommend.

Casino	MGM Millions	WowPot	Mega Moolah	Dream Drop	Age of Gods
BetMGM	Yes	Yes	Yes	Yes	Yes
Mr Vegas	No	Yes	Yes	Yes	Yes
Dream Vegas	No	Yes	Yes	Yes	No
Pub Casino	No	Yes	Yes	No	No
Quickbet Casino	No	Yes	Yes	No	No
Casino Casino	No	Yes	Yes	No	No
10bet Casino	No	Yes	Yes	No	Yes

Biggest Jackpot Slots ever won

The five biggest jackpots won so far, as stated in our biggest max win slots page together with non-jackpot max win info are the following ones (amounts exchanged to GBP):

1. WowPot – £33 million (2023)
2. Mega Moolah – £20 million (2021)
3. Mega Moolah – £16 million (2018)
4. Mega Moolah – £16 million (2015)
5. Mega Fortune – £15 million (2013)

Which are the most popular Jackpot Slots?

There are many online jackpot slots, but let’s start by listing the most played ones.

Due to their popularity and the fact that a portion of each stake is reserved for feeding progressive jackpots, these jackpot slots often offer the highest jackpots on the market.

WowPot Jackpots

WowPot is the biggest jackpot slot of them all.

This jackpot was released in 2022 by game studio Games Global (formerly known as Microgaming) and has quickly become one of the most popular games.

The list of games that share the WowPot jackpot is continuously growing, but includes titles as:

• Wheel of Wishes
• Book of Atem WowPot!
• Sherlock and Moriarty WowPot
• Sisters of OZ WowPot!
• 9 Blazing Diamonds WowPot!
• Ancient Fortunes Poseidon WowPot Megaways, and more

The WowPot jackpot always starts from a minimum of £2 million and has no cap on how big it can grow. Three smaller jackpots can also be won on these games.

The largest WowPot jackpot, about £ 33 million, was won in December 2023, a world record for online jackpot slots.

Mega Moolah Jackpots

Mega Moolah is the UK’s second most popular and biggest jackpot slot.

This jackpot has paid out several jackpots over £15 million, even from a bet of £0.25 per spin, and became famous as it held the Guinness world record for the biggest win for many years.

Nowadays, several Mega Moolah-branded slots share the same jackpot pool. This jackpot slot is also often found in the best UKGC-licensed online casinos.

Dream Drop Jackpots

Dream Drop Jackpots by game studio Relax Gaming is a new addition to the jackpot scene, and these have become instant hits.

One of the main reasons is that the Mega and Major have a must-win deadline and must be paid out before they reach that threshold amount. This feature adds another layer of excitement to it all, as you know for certain that the jackpot will be won by someone very soon once the amounts get close to the limit.

The success of this jackpot can be seen in the number of games released in recent years that share the same jackpots; by March 2025, we can find more than 40 Dream Drop Jackpot slots to choose from.

The must-win levels have contributed to huge jackpots being paid out to players regularly.

Age of the Gods Jackpots

Another giant game studio that has released its own jackpot slots is Playtech, and the jackpots are included in the Age of the Gods slots.

These jackpots were introduced in 2016, and they are among the most popular UK jackpot slots.

The biggest Age of the Gods jackpot paid more than £800k in 2011, and the average jackpot paid is £499,000 and is won on average every 44 days.

Some of the Age of the Gods jackpots can be won in games like Age of the Gods: King of Olympus, Age of the Gods: God of Storms, Age of the Gods: King of Olympus Megaways, and many more.

What are Jackpot slots?

Jackpot slots are casino games where larger-than-usual big-win amounts are luring players above all. There are often four or five jackpots on offer in a jackpot slot where the Mega is usually huge.

The jackpots might be fixed, meaning they don’t change and stay intact until someone wins them. Afterwards, they reset to the same amounts.

The most popular jackpot slots are progressive jackpot slots.

Progressive jackpots have growing jackpot values, as a fixed percentage of each player’s bet is allocated to them. These jackpots continue to grow and grow until they are finally won. Then they restart from a previously determined size called a seed amount.

The larger a jackpot grows, the more popular the game becomes, as more players want to get their hands on the big win. This leads to the jackpot size growing even faster, drawing more attention to the jackpot game.

What types of Jackpot Slots are there?

So far, we have mentioned the giants of jackpot slots, the most played ones. However, more types of jackpot slots are available, so let’s quickly go through the different variations.

Progressive Jackpots

The jackpot games mentioned above are all progressive jackpots, meaning that a fixed percentage of each bet is allocated to the jackpots, which then constantly grow until won.

These progressive jackpots share the same jackpot pool, and the jackpots available will be the same size wherever you play.  

Local Jackpots

Local jackpots, on the other hand, vary in size depending on where you play. These are more unusual, though, as they can attract slot syndicates that heavily target local jackpots at specific casinos when they reach a certain size.

One of the most famous local jackpot games is Divine Fortune.

Fixed Jackpots

Fixed Jackpots are included in games where the jackpot is fixed to a certain amount, and it can never decrease or grow.

One example is Cygnus 3, which offers three fixed jackpots:

• Sky: 1,000x the bet jackpot
• Star: 10,000x the bet jackpot
• Cygnus: 100,000x the bet jackpot

How can you win a jackpot?

No skills are involved, and there is no hack to increase your chances of winning a jackpot. In some slots, like Mega Moolah, a higher bet increases your chances of winning a jackpot, but that’s about it. Otherwise, it’s all about luck.

In many of these jackpot games, a separate jackpot bonus game can be triggered entirely randomly after or before a spin. You will then spin on a jackpot wheel or play a jackpot game.

Some jackpot slots, like Dream Drop Jackpots, will always credit you with one of the five jackpots on offer once you trigger the jackpot game.

Why are Jackpot Slots popular?

The apparent reason why jackpot slots are popular is because you can win big. Even millions when the mega jackpots reach enormous amounts.

It can also be very exciting to play jackpot slots when they are big, as there is a sense that the jackpot could become yours after any random spin. Playing Dream Drop jackpots when they are closing in on the must-win limit increases that feeling.

Another occasion is when a jackpot has reached a record amount, and your mind starts drifting away when you think about what you would do with all that cash if you win.

Risks with Jackpot Slots

The main risk with playing jackpot slots is that the chances of winning one of those jackpots are slim to none.

From a money management for slot players perspective, it is a horrible idea to attempt playing one of these jackpot slots.

Another risk is that your funds can dry out fast when playing jackpot slots, and you might have trouble letting go of the dream of winning a huge jackpot, although your chances might be equal to winning a major lottery jackpot. In other words, it’s almost impossible.

How Jackpot Slots affect the RTPs

Another downside about playing jackpot slots is that a significant portion of the Return To Player (RTP) percentage is reserved for jackpot contributions.

This means there will be less room for regular wins, as 5-8% of the RTP is often dedicated to the jackpots.

Sometimes, that percentage can be even higher, as in Dream Drop jackpots, where about 12% of all bets go into these jackpots, leaving about an 82% RTP for regular payouts.

Compare this with standard online slots, which average an RTP between 94% and 96% for payouts.

In other words, your balance will drain faster because the lower RTP results in fewer small to medium-sized wins.

Let’s examine how the jackpot contribution affects the payout percentage of the base game on jackpot slots compared to regular slots without a progressive jackpot.

This model will show how many spins it takes for your balance to reach zero on both types of slots.

To compare oranges with oranges, on both slots:

• We will start with a balance of £100 on both slots.
• We will stake £1 per spin.
• We will leave possible jackpot wins out of the equation.
• Both slots will have a theoretical RTP of 96%.
• The jackpot contribution for the progressive jackpot slot is 6%.

Slot	RTP	Jackpot contribution	RTP base game*	Number of spins
“Normal” slot	96%	0%	96%	2,500 spins
Jackpot slot	96%	6%	90%	1,000 spins

* Total RTP minus jackpot contribution

As you see, the non-progressive jackpot slot (the “normal” slot) gives you 2,5 times more base game spins before your money theoretically runs out than the progressive jackpot slot.

In other words, if you don’t win a significant jackpot soon, your playing time on a progressive jackpot will be much lower than on a slot without a progressive jackpot.

Some food for thought.

Our favourite Jackpot Slots

Although we avoid playing jackpot slots for the reasons mentioned (it is almost impossible to win a jackpot, and the RTP for regular payouts is low), we sometimes enjoy giving them a shot anyway.

Of all the jackpot slots, the Dream Drop Jackpots have become our favourite jackpot slot.

The reason is simple: the must-win-threshold element makes these jackpots unique. When that limit is approaching, someone will win the jackpot soon, no matter what, as it has to be paid before it reaches the amount set on your screen.

We have also occasionally tried one of the other jackpots when it has reached a record amount, like the WowPot Jackpot in 2023.

Frequently Asked Questions about Jackpot Slots