20 Best Online Slots in the UK
10 Best Overall Slots - All Time
Every online player has a list of favourite slots which he targets in every session at the casinos. We’re no exception to this rule and we have a massive list of favourite slots. Believe us, narrowing them down to the 10 best overall slots was not an easy task. Nevertheless, we got it done, so here are our top picks.
1. Gates of Olympus (Pragmatic Play)
- RTP: 96.50%
- Maximum Payout: 5,000x Bet
- Volatility: High
Sweet Bonanza 1000 (Pragmatic Play)
- RTP: 96.53% | 95.52% | 94.51%
- Maximum Payout: 25,000x Bet
- Volatility: High
Le Pharaoh (Hacksaw Gaming)
- RTP: 96.18% | 94.33% | 92.26% | 88.24%
- Maximum Payout: 15,000x Bet
- Volatility: Medium
Razor Ways (Relax Gaming)
- RTP: 96.36% | 94.32%
- Maximum Payout: 25,000x Bet
- Volatility: Medium/High
Sugar Rush (Pragmatic Play)
- RTP: 96.50% | 95.50% | 94.50%
- Maximum Payout: 5,000x Bet
- Volatility: High
Fire in the Hole2 (Nolimit City)
- RTP: 96.07%
- Maximum Payout: 65,000x Bet
- Volatility: Extreme High
Diamond Rush Express (Area Vegas Games)
- RTP: 96.49%
- Maximum Payout: 5,000x Bet
- Volatility: High
Midas King of Gold (Blueprint Gaming)
- RTP: 94%
- Maximum Payout: 10,000x Bet
- Volatility: High
10 Highest Paying Slots
When we talk about the highest-paying slots, some players may have the impression that we’re talking about slots which can pay the highest amounts of money. But this is not the case. Here we refer to slots which have the highest Return to Player value. These games are predicted to pay more to the player in the long run in the form of winnings. So, in theory, they should be more generous with their payouts.
But these slots are also great for wagering massive bonus amounts. Because of the high RTP value after a long number of spins, you should only be down a small fraction of your bankroll or even end up in profit. This is especially important for high rollers, who claim massive bonuses and want to keep as much of that bonus money as possible when they clear the wager.
Check our a your favorite slot machine and see what its RTP is.
3 Biggest Jackpots
Jackpots are a favorite among online players. Most online players have tried a jackpot slot at least once in their life. While the odds of hitting a mega progressive jackpot are slim, it’s still possible. The biggest winner from the UK is the British soldier Jon Heywood. He won £13 million on a 25p bet while playing Mega Moolah.
Needless to say, this was a life-changing amount and it just goes to show that miracles do happen. So here are our 5 biggest jackpot slots which you can try at UK online casinos.
1. Mega Moolah (Games Global)
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20 Slots Offer this Progressive Jackpot
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4 Jackpots in Each Game
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Top Mega jackpot seeding at £2 million
2. Mega Fortune (Netent)
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Biggest Win €17,860,868
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3 Jackpots in Each Game
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Jackpot seeding at £150000
3. King Millions Jackpot (Games Global
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2 jackpots seeding from £1 million and £2 million.
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9 Masks of Fire™, Hyper Strike™, 9 Pots of Gold™, Rising Rewards, 9 Mad Hats™, Fire and Roses Joker™
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Casinos.org.uk Recommended Pick
5 Best Megaways Slots
The Megaways mechanic brought us many exciting titles across the iGaming industry.
The Megaways slots are fun to play, come with a modern design, great bonus rounds and the potential for big payouts.
Thanks to the generous licensing deal from Big Time Gaming for their Megaways mechanic, today we can enjoy Megaways slots from many other providers.
How to play online slots
Playing slots is very easy and simple. There are no rules to learn and no strategies to follow. Slots are purely games of chance, so no matter what you do you can’t affect the outcome of the spin. This is why slots are so popular among players. If luck is on your side you can win some crazy amounts, if not you will quickly see your bankroll go down to 0.
Here’s how to play online slots across UK casinos
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Step 1
Choose a UK casino from our list
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Step 2
Follow the link and create an account. Verify your account
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Step 3
Claim a welcome bonus, and Make a real money deposit.
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Step 4
Choose any slot game you like. Set your bet to the desired size, and hit the spin button
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Step 5
Enjoy the game.
It’s as simple as that. UK online casinos have a rich offer of video slots, so you are sure to find many titles to your liking. At most casinos, you will also find slot filters or categories, so you can use them to your advantage to easily find the games you are looking for.
Types of online slots
In general online slots in the UK are divided into two categories. Those are classic slots and video slots. But slots can also fall into many other categories depending on their design, the features they offer or even the theme they use. Let’s take a look at the most popular slot categories you can come across.
Classic Slots
Classic slots are the simplest games you can come across at the casinos. They have a simple 3-reel design and anywhere from 1 to 5 paylines. In most cases, they don’t come with any bonus features, but can still pay big. This is due to their rich payables and the high payouts from the top symbols. If you are looking to play simple games, classic slots are the way to go.
Video Slots
Video slots are the most common games you can find across online casinos. Their offer is massive and they have a much more modern design than classic slots. The biggest advantage to video slots is the bonus rounds and the big payouts they can produce.
1024 ways to win slots
1024 Ways to Win slots are a video slots category, featuring a ways to win design. These slots come with 6 reels and 4 rows, so the maximum number of ways to win on them is 1024, which is where the name comes from. These slots are quite popular among UK players since they usually have interesting bonus rounds and potential for big payouts.
Megaways slots
Megaways slots have become incredibly popular in recent years, ever since the first Megaways slot was introduced by Big Time Gaming. On most of these slots, you will find over 117,000 ways to win, but there are also slots with even bigger numbers. These games usually come with a high payout potential and high volatility, making them perfect for players aiming to win big.
Sticky Wilds slots
The sticky wilds category comes from the features these slots offer. In these games, the bonus round revolves around sticky wilds which stay on the reels for the duration of the feature. Since the wild is usually also the highest-paying symbol these slots can produce mega payouts in the bonus round. A perfect example of a great sticky wilds slot is Dead or Alive by NetEnt.
Expanding Wild Slots
Expanding Wild slots are also a popular category and a favourite among many UK players. These slots work in a way that when the Wild lands on a reel it expands to cover the entire reel. This way you can get many winning combinations and big payouts. On many of them, you can even get a full screen of wilds and the top payout. A great expanding wilds feature is the Wild Desire in Immortal Romance by Games Global.
Food Slots
Food slots are simply games where the theme is some dish or ingredient we use in our daily lives. A great food slot is Pizza Pizza Pizza by Pragmatic Play. A name like that is hard to miss and you can easily pick it from a catalogue of unknown slots.
Sea Slots
Sea slots are another category based on the theme they use. On these slots, you can find the sea, sea creatures or even the beach. They are fun games to play and are usually quite popular in the cold winter months, when we can’t wait for summer to come.
Currently Most popular online slots
There are tens of thousands of slots to choose from at UK casinos since there are so many providers aiming to get a piece of the market. But in the end, players decide which are the best ones and only the truly best slots become popular across the industry.
So, here’s our list of the most popular online slots across online casinos.
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Big Bass Splash (Pragmatic Play)
Big Bass Splash is currently the most popular game at UK, it ranks in top 10 on all the major casinos. The game is highly volatile comes with a great RTP of 96.71%, and a max win of 5000x your bet. The game is fun to play and offers free spins and buy bonus feature.
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Sweet Bonanza 1000 (Pragamatic Play)
If you haven’t tried Sweet Bonanza, it’s definitely worth a try. It’s also currently ranked as one of the most popular games in many of the largest UK casinos. The game offers a fine RTP of 96.53% and a max win of 25,000x your bet.
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Pirots 3 (Elk Studios)
The Pirots 3 is one of the most fun games we have ever played. It is not strange that it is a top slot at the casinos that offer this game.The downside is the 94% RTP.
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Big Bass Vegas Double Down Deluxe (Pragmatic)
This is one of the newest games in the Big Bass series. It launched on 12th September 2024 and has quickly become a player favorite at casinos. It offers a solid RTP of 96.50%, and the max win is 5000x your bet. What’s nice about this new version is that it comes with a double chance to win extra free spins and additional multipliers.
The above popularity rankings are based on the average ranking of popular slot games at the biggest UK casinos: LeoVegas, William Hill, Ladbrokes, PartyCasino, 32Red, Betway, bet365, Paddy Power and 888casino. The list will be updated regularly.
Slot game features
The most attractive part about online slots is the features they have to offer. They are responsible for making the game interesting and for creating the big payouts. There are many features to cover, impossible to do in a single article, so we will focus on the most popular ones.
- Wild symbol
The Wild symbol is also referred to as the Joker, especially by players from the older generation. It substitutes for other symbols from the paytable and often comes with extra features attached.
- Scatter symbol
The scatter symbol is responsible for triggering the bonus rounds in the game. Usually in most slots you need to land 3 scatters to trigger the bonus round.
- Bonus symbol
The bonus symbol has the same function as the scatter. But in most slots, the scatter triggers the free spins bonus, while the bonus symbol triggers the cash bonus.
- Free spins
The free spins bonus is the most common feature you can find in video slots. Usually, when you trigger the feature you get 10 free spins and you can retrigger them by landing another trio of scatters. At most slots, you also get extra features with the bonus round.
- Cash bonus
The cash bonus is usually a side or extra feature in the game. In most cases, this is a pick-and-win bonus, where each pick on the screen gives you extra prizes.
- Win Multiplier
The win multiplier is a common feature in many video slots. Usually in the bonus rounds, all payouts have an x3 win multiplier. In many slots, the win multiplier can be much higher.
- Wild Multiplier
Just like the win multiplier, the wild multiplier also multiplies the payout. But in this case, it’s attached to the wild symbol. In many slots, the win and the wild multipliers are combined. For example, the free spins feature comes with an x3 win multiplier, while the Wild has an x2 win multiplier attached. So, every win with a wild symbol in the feature comes with a total x6 win multiplier.
- Sticky Wilds
The Sticky Wilds feature means that every wild which lands on the screen during the bonus round will remain in that position for the entire feature.
- Expanding Wilds
The expanding wild feature means that every wild which lands on the screen will expand to cover the entire reel it lands on.
- Random Wilds
The random wilds feature is just what you expect. On any spin during the feature, a wild or a random number of wilds is added to random positions on the screen.
- Floating Wilds
The floating wild is a combination of the sticky and the random wild. The wilds which land on the screen during the feature remain on the reels, but they will move to random positions on each spin.
- Both Ways Win
In most online slots the payouts are formed from left to right. But in both ways win slots the payouts can start from both the left and the right side of the reels.
- Exploding symbols
The Exploding Symbols design is quite a popular one. Once a win is formed the symbols which form it explode and are removed from the reels. After that new symbols drop on the reels, giving you a chance to form more wins. In many slots, the exploding symbols are also accompanied by win multipliers.
Best minimum deposit slots
Today you can play slots with virtually any denomination. It all depends on how much you deposit at the casino, the bonuses you claim and the slots you choose to play. Here are some of the most popular slot denominations you can come across at online casinos.
- Penny Slots
Penny slots are a great way to have fun at the casino and play for a long time with a small deposit. Favorite by low rollers the penny slots are fun to play and can bring you a small profit in the long run.
- £1 Slots
The dollar slots are for the more casual gambler, looking to make a profit while spending a few hundred pounds at the games.
- £5 Slots
Spending a fiver per spin on the slots is a virtue of the more serious gamblers. Playing these slots can yield great results with some luck on your side.
- £10 Slots
The £10 slots are aimed towards players who are serious about slot machines and are in it to win big. With these bets, you can hit some life-changing amounts with some luck on your side.
- £50 Slots
The £50 bet is in no way designed for the casual gambler. With these types of bets, you are looking at a minimum of £5,000 starting deposit and maybe a 100% match bonus to have a chance to make a profit on the slots.
- £100+ Slots
Designed for the real high roller, slots with such high bets can bring payouts of millions of pounds. On many games, this is the maximum bet per spin, so you can expect to win some insane amounts of money.
Understanding online slots Volatility, RTP and paylines
At first look, these terms may seem confusing, but once you understand them you will see they are very simple and straightforward. So let’s begin with the simplest one, paylines.
Slots Paylines
All slots consist of vertical reels and horizontal rows. Across them, you have imaginary paylines from the first to the last reel. When you get matching symbols on the payline you get a win. That’s it. The more paylines there are in a slot the more frequent the payouts should be. However, slots with a smaller number of paylines tend to produce bigger payouts since you are betting more per payline.
Slots RTP
The RTP term means Return To Player. This is the value present on each slot and it shows the percentage the slot is predicted to return to the player in the form of winnings. Of course, slots with a higher RTP value tend to give better results over the long run. Many players focus on this detail when choosing which slots to play at UK online casinos.
Slots Volatility
But the RTP also goes hand in hand with the slots’ volatility. This is the frequency and the size of payouts the slot produces. There are several volatility categories, such as low, medium, high and extreme. Low volatility slots produce frequent wins, but they are small in size. With the high and extreme volatility slots, the payouts are less frequent, but they can produce massive payouts in the bonus round.
Mobile Option for Playing Slots
Today UK players can access their favorite slots from their mobile devices. All online casinos today are mobile-friendly. Thanks to the HTML5 protocol once you launch a game it will perfectly fit your screen. This guarantees problem-free and enjoyable gameplay across all iOS and Android devices.
Many leading UK casinos today also offer their players a dedicated mobile app. You can download it directly to your phone from the casino website and access the casino and the games at the swipe of the finger. This is a great way to take the casino with you and access the games from any place and time.
Pros & Cons of playing Slots Online
Playing slots online is an undoubtedly fun experience. Below are some of the benefits and drawbacks you can come across at UK online casinos.
Pros
- Massive Slots Offer
- Lucrative Bonus offers
- Huge range of denominations
- Slots from many providers
- Progressive Jackpots offer
Cons
- You can play for a long time
- Gambling with bigger bankrolls
Our Tips for How to Win on Slots
As we mentioned before slots are games of chance run by a random number generator. This means it all comes down to luck whether you win or lose when playing online slots. But there are some details you need to consider which can help you make a profit in the long run. Let’s go over our tips and winning strategies on slots.
Use Bonuses
Bonuses give you an advantage when playing slots, despite the bonus terms and the wagering requirements. If the slots are paying you can easily blast through massive wagers and make a withdrawal. With a bonus you substantially increase your starting bankroll and can land bigger payouts
Consider the volatility
If you play slots with low volatility you can easily go for higher bets. Moving from one slot to another can bring you a profit and you can end up with a pretty hefty withdrawal in the end. High volatility slots on the other hand are great for medium bets, as you can cover a big number of spins and end up with a big payout in the bonus round.
Starting Bankroll
When you decide to play slots always make sure you have enough funds to cover at least 100 spins per game. Adjust your bets to your bankroll and you can easily land a bonus round that can bring you a profit.
Never chase a win
Slots are known to go on cold streaks from time to time. When this happens no money in the world can be enough to land that bonus round. It’s best to take a break and try some other slot and come back to that one later.
How we Rate & Rank Slots
There are many ways in which you can rate online slots. Below we cover what our casino experts look for in a video slot.
Fun to Play
Of course, one of the most important things we look at is whether the game is fun to play. We have been playing slots nearly every day for over 20 years, so as experts, we know what to test and what makes a slot fun and exciting to play.
Bonus Features
We all love great bonus features when it comes to slots. A win multiplier is all fine and dandy, but bonus rounds with sticky and expanding wilds are more up to our standards. The better the features are the more chances you have to hit a big win.
Games RTP
When it comes to the RTP value the general rule is the higher the better. Slots with a higher RTP value should produce more payouts in the long run. So we look at each games RTP, including the RTP if the game offer buy bonus feature.
Maximum Payout
When we play or test slots we want to try games with a high maximum payout potential. In the end, it all comes down to luck whether you win or lose on slots, so why not aim for the highest possible payout.
Frequently Asked Questions
Where can I play online slots for real money in the UK?
You can play real money slots at every online casino which accepts UK players. We have a list of the leading UK slot casinos here, so you can choose any brand you like.
Are online slots fair?
Yes, online slots are proven to be fair and random if you play at a casino licensed by the UK Gambling Commission, like the ones we list. Before being released, they are tested and approved by official regulatory bodies.
Can I play slots with a bonus?
Of course. All of our recommended casinos have attractive bonus promotions which you can claim on your first and subsequent deposits.
Can I play these slots for free?
Yes, all slots are also available in demo mode. This way you can give them a try for free and see what they have to offer before you play them for real. Check out our demos here
When is the best time to play online slots?
Slots are random, so the time you play does not affect whether you will win or lose
