Best online slots (2024): Top games at slot sites

DISCOVER the best UK online slot games of 2024 at slots sites. Our selection features top-notch slots with innovative gameplay, stunning graphics, and enticing rewards for an unforgettable gaming experience.

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The top 10 online slots for UK players

1. Book of Dead by Play ‘n GO
2. Starburst by NetEnt
3. Bonanza Megaways by Big Time Gaming
4. Immortal Romance by Microgaming
5. Sweet Bonanza by Pragmatic Play
6. Money Train 4 by Relax Gaming
7. Jammin’ Jars 2 by Push Gaming
8. Tombstone RIP by Nolimit City
9. Razor Returns by Push Gaming
10. Dead or Alive 2 by NetEnt

Here's what our experts had to say about the best online slots.

Book of Dead by Play ’n GO: 5,000 x bet max wins + 96.21% RTP

With an ancient Egyptian theme and following the adventures of Rich Wilde comes the Book of Dead slot from top studio Play ‘n GO. Offering top-notch excitement, this easy-to-play game has 5 reels and 10 paylines as well as a 96.21% RTP rate. The focus is on the Free Spins feature where you’ll play with a special expanding symbol. This can lead to 5 reels displaying the same symbol. If it’s the highest value symbol, this can deliver wins of up to 5,000 x your total bet. 

The exciting welcome offer at Duelz Casino features an exclusive bonus of free spins tailored specifically for this popular slot game.

Starburst by NetEnt: 500 x bet max wins + 96.09% RTP

From well-known gaming studio NetEnt, Starburst is a real cult classic slot machine and one of the most popular slot games ever to spin online. When you take into account its engaging gameplay, interesting sci-fi theme and arcade feel, this is not a surprise. Boasting 5 reels, 10 paylines and a 96.09% RTP rate, the main Starburst Wilds feature can deliver up to 3 re-spins for payouts of up to 500 x bet. 

If you like this classic slot game you can experience it with the no deposit welcome bonus at MrQ casino. You get five free spins for Starburst upon registration. Plus, after your first deposit using the promo code THESUN35, you'll receive an additional 30 free spins.

Bonanza Megaways by Big Time Gaming: 26,000 x bet max wins + 96% RTP

This cult favourite put the Megaways engine on the map. Bonanza Megaways is a hillbilly/mining-themed game with 6 reels and up to 117,649 ways to win. Changing with each spin, it has an RTP rate of 96%. Offering Reactions for continuous wins, the Free Spins feature can deliver infinite free spins and an unlimited win multiplier. Every win/Reaction increases the win multiplier by 1, with no limits. This can lead to 26,000 x bet max wins on each free spin. 

Immortal Romance by Microgaming: 12,150 x bet max wins + 96.86% RTP

Immortal Romance is Microgaming’s most popular offering and has 5 reels and 243 ways to win. Based on vampires with an epic soundtrack based on each of the game’s characters, it benefits from a very high RTP rate of 96.86%. The Wild Desire feature can see 5 reels turn completely wild and The Chamber of Spins deliver 4 free spins features with their own modifier. Hugely popular since its release in 2011, this cult favourite game can give you 12,150 x bet max wins. 

Sweet Bonanza by Pragmatic Play: 21,175 x bet max wins + 96.49% RTP

Tasty treats await in Pragmatic Play’s sugary overload that is Sweet Bonanza. Played on a 6x5 grid with Scatter Pays, it comes with a high RTP of 96.49%. Tumbles award successive wins and the Ante Bet increases your chances of triggering the all-important Free Spins feature. Here, look out for Rainbow Bombs that come with multipliers up to 100x. With unlimited free spins up for grabs, you can land 21,175 x bet max wins. 

Money Train 4 by Relax Gaming: 150,000 x bet max wins + 96.1% RTP

The last ride of Relax Gaming’s infamous bandits takes place in Money Train 4. Played on a 6x6 grid with Scatter Pays, the RTP is 96.1%. Graphically superb with a steampunk/heist theme, there are respins with sticky symbols and multipliers. It’s all about the Money Cart Bonus feature where there are 20 special symbols including a new Arms Dealer bandit. Chaos guaranteed, these bandits can award 150,000 x bet max wins. 

Jammin’ Jars 2 by Push Gaming: 50,000 x bet max wins + 96.4% RTP

Head to the dancefloor in Push Gaming’s Jammin’ Jars 2. Played on an 8x8 grid with Cluster Pays payouts, the RTP is above average at 96.4%. This sequel offers you Avalanches for multiple wins as well as instant prizes, fruit blasts with giant symbols, free spins with multipliers and Giga Jar free spins with more prizes and increasing multipliers. Get your dancing shoes on for 50,000 x bet payouts.

Tombstone RIP by Nolimit City: 300,000 x bet max wins + 96.08% RTP

With 5 reels and 108 ways to win, Tombstone RIP from Nolimit City is not for the faint-hearted. With a 96.08% RTP rate and a very low 9.08% hit frequency rate, this brutal Western features murder, amputations and hangings. There are xNudge Wilds, Splitting Wilds and 2 free spins features which can award random multipliers up to 999x. This cult favourite is the highest-paying online slot with 300,000 x bet max wins.

Razor Returns by Push Gaming: 100,000 x bet max wins + 96.55% RTP

Head under the ocean with Push Gaming’s Razor Returns slot. With 5 reels and 40 paylines, the RTP is high at 96.55%. With a whopping 11 bonus features including Nudge and Reveals, Razor Reveals and free spins with multipliers and Mystery symbols, there are 100,000 x bet payouts up for grabs.

Dead or Alive 2 by NetEnt: 111,111 x bet max wins + 96.8% RTP

Join 5 notorious outlaws in NetEnt’s Dead or Alive 2 slot. Played with 5 reels, 9 paylines and a very high 96.8% RTP rate, this Wild West sequel comes with 3 free spins features with increase multiplier wilds and sticky wilds. In the High Noon Saloon Free Spins, the MAX concept can lead to max wins of 111,111 x bet.

Honourable mentions

Apart from the best online slot games ranked by our experts, there are tens of thousands more to choose from. Below are reviews of other top games we’ve covered:

• Big Bass Splash by Pragmatic Play
• Gonzo’s Quest Megaways by NetEnt
• 9 Pots of Gold by Microgaming
• Fluffy Favourites by Eyecon
• The Dog House by Pragmatic Play
• Karen Maneater by Nolimit City
• Fishin’ Frenzy by Blueprint Gaming
• Big Bass Bonanza by Pragmatic Play
• Mega Moolah by Microgaming
• Book of Ra Deluxe by Novomatic

Here’s how we picked the best slot sites in the UK for slot games

As anyone in the UK who plays online slots knows, there are lots of iGaming platforms you can play slot machine games to try to win a fortune. This meant we had to apply strict criteria to find sites in the UK which offer the best slot gaming experience.

But what criteria did we use for our guide exactly?

Mobile app

Mobile gambling is a big part of online slots play in the UK. One of the main criteria we rated each site by, therefore, was how good their mobile app was for betting on slots. This included looking at whether it was available on all mobile devices, had plenty of useful features and had a smooth, responsive feel. We also took into account how many slots/top games were on each app we reviewed!

Free spins bonuses

Casino bonuses are another reason why people in the UK love playing slot machine games online and why they offer such excitement. One of the most appealing promos to track down is free spins bonuses. This sees the slot sites in question giving you free spins to use on top games after registration. The very best UK internet casinos in 2024 also include free spins as part of regular promotions for existing players.

No deposit spins

Next to free spins or even a free bet, players in the UK also love no-deposit spins when gambling. This offer sees slots sites crediting free spins to your account, which can be used on selected games – without you having to deposit or risk any cash first! 

High RTP (return-to-player) percentage

Another thing we looked at was the RTP percentage of the top slot games offered by the great UK sites above. To be more specific, we targeted online slot sites for Brits which offer high RTP slots. This is because these games offer a better payout percentage to players over time and offer more chances of getting a better overall return. 

Access to demo play

Demo play is a great feature on slots which gives you a chance to bet on slots without using real money. This is particularly useful for people new to slot gaming online or for trying out new games. Any top casino should have easy access to demo play and plenty of games to test out for free. 

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UK casinos with the best slot games 

1. Duelz
2. Mr Vegas
3. Magic Red
4. MrQ
5. Voodoo Dreams
6. Luckster
7. Winomania
8. Hot Streak
9. LeoVegas
10. VegasLand

FAQ about online slot games and popular slot sites

Here I'll cover some of the burning questions casino players have about their favourite games.

1. What is volatility in slot games?

Volatility (also known as variance) refers to how often a slot may payout and is different than the official RTP (which measures potential returns over a set number of spins/time period). Low volatility slots tend to bring more frequent wins for less risk, whilst higher risk high volatility games tend to pay out less but for bigger amounts.

2. What slot game pays the best?

There are a few slots that offer very high RTP slots. Ugga Bugga by Playtech has a 99.07% RTP rate whilst Relax Gaming’s Book of 99 comes with a (you guessed it) 99% RTP rate. 

3. Does anyone ever win big on slots?

YES, over the years several lucky players have walked away with millions from winning online slot games. Michael Clark from Newcastle won 5.4 million back in January 2023.

The Mega Moolah slots series also features some of the biggest jackpots in the industry to players lucky enough to hit them!

4. What are the best real money slot games?

This is a hard question to answer, as different people like different themes and character slots come with. It is really down to personal choice and which you find most fun to try out! For many people, though, classics like Starburst and Book of Dead are the top real money slots around still. The top 10 slots list above is a great place to start though. 

5. What are the loosest slots?

Loose slots are generally considered to be those which pay out often. As a result, players who do not like to wait for wins are always looking for the loosest game to check out! Starburst from NetEnt falls into this category as does Big Bass Splash by Pragmatic Play.

6. What types of slots are available at slot sites in the UK?

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There are a huge variety of slots to play at UK online casinos, and this is what makes them so popular. If you want to know a bit more about the sorts of slots to check out, the below should help: 

• Standard slots – known as video slots, these games offer standard gameplay features and don't tend to feature things like huge jackpot prizes.
• Free slots – these slots are free to spin and are ideal if you play purely for fun. 
• Megaways slots – these types of games involve Megaways gameplay mechanics, which give more ways to win per spin 
• Progressive jackpot slots – this slot game type sees the jackpot prize grow progressively bigger until someone wins a fortune  
• High payout slots – one of the best slot machine titles online, these games are known for having high RTP figures and delivering larger payouts than standard slots.

7. What are the most popular slot game providers?

If you are a UK player, the most popular slot game developers include NetEnt, Microgaming, Pragmatic Play, Play’n GO, Quickspin, Red Tiger Games and Yggdrasil Gaming.

8. What are the best welcome bonuses for slot games? 

Welcome bonuses are freebies that UK slot sites give to players for signing up with them. The best ones to look out for in terms of slots are free spins to use on selected games. 

9. What UK casino has the best selection of slot games?

In truth, any top slot site in the UK recommended above is our top choice due to the large slot game library they feature. LeoVegas is perhaps the top casino, though, and known for having a large selection of slots (including jackpot games) to try. 

10. What are special symbols in slot games?

Getting the most from playing the best slot game online in the UK means knowing what the most common special symbols mean. But what do the most widely seen in games refer to? 

• Multiplier - this symbol multiplies any winnings by the given amount (i.e. x10 or x20)
• Wild - substitutes for other game symbols to create winning combinations 
• Scatters - trigger specific bonus rounds or cash prize payouts
• Bonus - triggers bonus features rounds only 

11. What online slot games can be played on iOS and Android mobile devices?

You should find that all the best slot machine games described earlier can be played on iOS or Android mobile devices. Whilst most mobile apps will carry the same choice of games as the desktop casino, certain ones may not. 

My top 5 tips and strategies for picking the best slot games

Playing slots in the UK is all about having the best time and trying to bag the best prize payouts. The most sensible way to go about this is following the below tips for picking the top slots to try.

1. Look at online slot game reviews

A good first tip for finding the best slot machine game online is to look around online for lists of the best games to check out. Once you have done this, look up reviews of individual games to find out more about them before playing. 

2. Choose ones with higher RTPs

Another good strategy for tracking down the best game is focusing on slots with higher RTP figures. It is better, for example, to only play those with an RTP of at least 95%, as you should find you get a good return over time. 

3. Pick volatility which suits your own gaming style 

In addition to focusing on RTP figures, try to pick slots which suit your own playing style in terms of variance. If you want to win a fortune and don't mind waiting for bigger wins, high-volatility games could be for you. 

4. Pick games with themes you enjoy 

One tip you should certainly follow when choosing the best casino slot games in the UK is going for one that has a theme you connect with. This makes your session lots more fun and sees you getting fully immersed in the action.

5. Choose slots with innovative features

A good strategy to follow when selecting top slots for wagers is choosing ones which have innovative gameplay features. This makes the game more interesting, and you can often see awesome new bonus games/prize features included. 

Remember to gamble responsibly

A responsible gambler is someone who:

• Establishes time and monetary limits before playing
• Only gambles with money they can afford to lose
• Never chase their losses
• Doesn’t gamble if they’re upset, angry, or depressed
• Gamcare – www.gamcare.org.uk
• Gamble Aware – www.begambleaware.org

Find our detailed guide on responsible gambling practices here.

For help with a gambling problem, call the National Gambling Helpline on 0808 8020 133 or go to www.gamstop.co.uk to be excluded from all UK-regulated gambling websites.