There are many online slots to play in the UK, but few of them capture the real thrill of the one-armed bandit.

As massive fans of slot machines ourselves, we’ve put together a list of the UK’s best online slots and where to play them — focusing on their RTPs, payouts, jackpots, and graphics.

At the top of our list is PlayOJO and its stellar selection of over 3000 slots and no-wager bonuses, with Big Bass Bonanza as the stand-out game.

Ready to dive in and learn more about the top 10 UK slot sites?

Let’s go.

Best Online Slots UK


Want to know how we found these sites and games? Keep reading to find our individual reviews of the best online slots in the UK.

1. Big Bass Bonanza — Best Online Slot Game in the UK Overall

Eastern Daily Press:

  • RTP: 96.71%
  • Theme: Fishing, Outdoors
  • Maximum Win: 2,100x
  • Where to Play: PlayOJO
  • Bonus: 50 rollover-free spins

Big Bass Bonanza is one of Pragmatic Play’s best online slot games — and deservedly so.

The artwork on this slot is very well done, with the symbols all being illustrated in a charming cartoony style. Everything from the various fish to the tackle box and fishing pole looks great.

The main game plays out as most 5 reel games do, with players looking to line up symbols along the 10 paylines.

There is nothing particularly special here, but once you land three scatter symbols in a given spin, you’ll be taken to the free spins bonus round, which is where the fun really starts.

During the round, you’ll have 10 bonus spins, and the goal is to land a Fisherman wild symbol, which will collect the value of all fish on the screen. If you get two Fisherman symbols in one spin, you’ll get double the amount of each fish, and so on.

It goes on like this until you’ve used all 10 free spins, but if you land enough Fisherman symbols, you’ll get another round of bonus spins with doubled multipliers.

In the event that you get a Fisherman symbol but no fish, the resourceful outdoorsman will toss a stick of dynamite into the waters, causing a bunch of fish to rise up, and claim the bonuses there.

>> Play Big Bass Bonanza

2. Fishin’ Frenzy – High RTP Slot Game for UK Players

Eastern Daily Press:

  • RTP: 96.12%
  • Theme: Fishing
  • Maximum Win: 50,000x
  • Where to Play: Grosvenor
  • Bonus: £30 + 100 spins


Fishin’ Frenzy is a popular slot machine from Reel Time Gaming and Blueprint Gaming, combining simple gameplay with exciting bonus rounds.

With a standard layout of a 5x3 grid and 10 paylines, this game allows you to wager as little as £0.2 and go up to £20. It’s a very comfortable betting range, ensuring an excellent experience for both beginner and skilled players.

The sailing boat and fisherman are your scatter and wild symbols, with the wild granting up to 5,000x rewards. In addition, the maximum payout is even more generous, going up to 50,000x your stake.

There also is the Gamble feature, which doubles your winnings if you guess the colour of the card correctly. To unlock bonus spins, you need to land 3, 4, or 5 Scatters on the reels.


>> Play Fishin’ Frenzy

3. Starburst — Best Arcade-Style Slot Game in the UK

Eastern Daily Press:

  • RTP: 96.01%
  • Theme: Arcade, Space
  • Maximum Win: 500x
  • Where to Play: Luckland
  • Bonus: £50 + 50 spins

NetEnt’s Starburst is one of the most pure forms of slot entertainment in the UK.

The gameplay is fairly simple and straightforward, with 5 reels, 10 paylines, low volatility, and some of the prettiest graphics around.

Starburst straddles the line between outer space and exciting classic arcade casino games, visually speaking, which makes the whole experience immensely satisfying.

There are no bonus rounds within the game itself, but there are plenty of bonus spins to be won, Starburst Wild symbols, and so on.

This fantastic slot is so popular it has spawned several spin-off games, including Starburst Slingo, Starburst XXXTreme, and more.

>> Play Starburst

4. The Goonies Return — Best Branded Slot Game for UK Players

Eastern Daily Press:

  • RTP: 96.0%
  • Theme: Movies
  • Maximum Win: 50,000x
  • Where to Play: All British Casino
  • Bonus: £100 + 10% cash back

Branded slot games tend to be hit or miss, but Blueprint Gaming has knocked it out of the park with The Goonies Return.

This excellent 5x3 slot features portraits of all your favourite goonies and 20 fixed paylines that are triggered by matching 3 or more symbols starting from left to right.

There are a number of great modifiers, including booby traps, lucky coins, guaranteed win, and the Truffle Shuffle wild symbols, featuring Chunk giving his iconic dance.

It’s refreshing to find a branded game that actually plays with the theme and doesn’t just slap a coat of paint over a generic slot.

If you like slot games that keep you on your toes or are just a fan of classic 80’s American cinema, you won’t find much better than The Goonies Return.

>> Play the Goonies Return

5. 88 Fortunes Megaways – Best Megaways UK Slot Machine

Eastern Daily Press:

  • RTP: 96.06%
  • Theme: Traditional Chinese Culture
  • Maximum Win: 10,000x
  • Where to Play: Mr. Play
  • Bonus: £200 + 100 spins


If you are into Megaways slots that offer up to 117,649 ways to win (more than you would get with most slot machines), 88 Fortune Megaways is a must-try.

This game is developed by SG Digital and offers stunning visuals and dynamic gameplay. Players can bet from £0.88 to £88 on 6 reels with up to 7 rows – a great range for everyone!

The Fu Bat symbol serves as the wild, triggering the Pick-em bonus round. Once you see it on the reels, you’ll get the chance to collect coins for extra spins and multiplier rewards.

>> Play 88 Fortunes Megaways

Best UK Online Slot Sites

Finding the best slots with high RTPs and exciting bonus rounds is one thing, but knowing where to play them is a whole other kettle of fish.

We’ve put together a breakdown of the top 5 online casinos for UK slots so you can see everything they have to offer, including games, deposit bonuses, payment methods, and more.

Below, we will review all of them in-depth.

1. PlayOJO — Best Online Slots Site in the UK Overall

Eastern Daily Press:

First deposit only. 50 Free Spins on Book of Dead slot. Free Spin valued at £0.10. OJO’s Rewards and Game Play policy applies. Full T&Cs apply.


  • 50 bonus spins for new players
  • Over 3,000 real money slots
  • No wagering requirements
  • Cashback on every game
  • No minimum withdrawals


  • Website elements sometimes break
  • Doesn’t offer a classic deposit bonus

PlayOJO is an easy pick for the best site to play UK casino slots.

Not only does it have one of the most robust slots libraries around, but PlayOJO hosts a bunch of player-friendly features like rollover free bonuses, cash-back offers, and much more.

Slot Selection - 5/5

We found over 2,500 exciting games from some of the industry’s leading providers at PlayOJO. This means you’ll find online casino games from names like Yggdrasil, NetEnt, and Pragmatic Play, as well as live casino games from Evolution Gaming.

Everything from fan favourites like Big Bass Bonanza and Gonzo’s Quest to new slot titles and Megaways slots is available. No matter whether you like classic slots gameplay or exciting new innovations like cascading tiles, PlayOJO’s got you covered.

This excellent game library is one of the main reasons why it leads our list of the best online slot sites UK has to offer.

Deposit Bonuses and Promotions - 4.9/5

New players who deposit £10 or more will receive 50 extra spins on the Book of Dead slot game. The welcome bonus — like all PlayOJO bonuses — is completely free of wagering requirements. This means that whatever you win is yours to keep. No re-wagering, no fuss.

On top of that, the OJOplus program gives players cashback points on every game they play, and once enough have been amassed, they can be converted over to your account’s bankroll and either be withdrawn or wagered from there.

Payment Options - 4.8/5

Banking with PlayOJO is as pleasant as everything else at the site.

You can load up your account with a debit card, Trustly, PayPal, Apple Pay, and Instant Bank Transfer.

You can use many of the same payment methods to withdraw any amount you see fit — there are no minimum withdrawals stated.

>> Get your 50 bonus spins [PlayOJO] <<

2. Grosvenor – Highest RTP Slot Games That Pay Real Money in the UK

Eastern Daily Press:

New Customers by invite Only. Min Deposit £20 (exc PayPal). Max Bonus £30, and 100 Free Spins Playable On Selected Games Only. Free Spins carries a 1X Wagering and Max win from free spins is £500. Bonus carries a 30X Wagering for £30 Bonus. Max Win £2,000. Full T&Cs apply.


  • £30 welcome bonus + 100 spins
  • Over 660 slots
  • Dedicated mobile apps
  • 96%+ RTP for most slots
  • £5 minimum deposit



  • Slightly cluttered homepage
  • Customer support is a bit slow


Grosvenor is one of the most established UK online casinos – it’s been around since 2007!

Here, you will enjoy 660+ slots with over 96% RTP, comfortable banking, and dedicated Android and iOS apps for on-the-go gaming.

Slot Selection - 4.9/5

Once you visit the Slots category at Grosvenor, you’ll be able to choose from multiple categories, including classics, drops & wins, megaways, and many more.

One of the biggest stand-out features of this UK slots site is that it offers exclusive titles that are not available elsewhere. Among them, we found titles like Jackpot King Deluxe, Megajackpots Fortune Coin, and Ammit.

If you are after high RTP slot machines, make sure you try Congo Cash (96.51%), Lucky Leprechaun (96.33%), and Zeus Lightning Power Reels (97.73%).

The good news is that the game library is updated regularly, so you can always try something new to keep the experience fresh and exciting at all times.

Bonuses and Promotions - 4.8/5

The welcome bonus at Grosvenor is £30 plus 100 extra spins. To activate it, you need to make a £20 deposit after you create an account.

You can use the £30 casino bonus on any of the games, while bonus spins are reserved for pre-selected slot machines.

Apart from the welcome bonus, you’ll also find other promos at Grosvenor, including the Beat the Timer game.

It is your free chance to win extra spins, bonuses, cash, and more. All you have to do to win is to match all the pairs before the timer ends, and that’s it – the prizes are yours to collect.


Payment Options - 4.7/5

At Grosvenor, you can make deposits and withdrawals using Visa, Mastercard, PayPal, Paysafecard, and Apple Pay.

We liked that you can start playing your favourite slot games with just a £5 deposit. The minimum withdrawal amount is also set at £5, so there’s no need to win big to be able to cash out your money.

>> Score a £30 bonus plus 100 spins [Grosvenor] <<

3. Luckland — Best UK Slot Site for Drops and Wins 

Eastern Daily Press:



  • 100% deposit bonus up to £50 + 50 spins
  • Over 700 slots
  • Popular banking options available
  • Tons of reload bonuses
  • Exciting Drops and Wins prizes


  • No downloadable mobile app
  • Basic website layout

Luckland is another phenomenal UK slot site that manages to do well at a little bit of everything.

Not only will you find over 700 exciting slots, but several bonuses and promotions, great banking options, and a huge selection of games connected to the Drops and Wins network.

Slot Selection - 4.8/5

The vast majority of games at Luckland are slot games. Progressive jackpots[11] , classic fruits and sevens, exciting modern video slots — you name it, it’s here.

What’s more, all of these games are powered by fantastic providers like NextGen, Play’n Go, Red Tiger, Pragmatic Play, and quite a few more.

You’ll have everything from Mega Moolah titles like Thunderstruck 2 and Starlight Fruits to Slingo greats like Carnival, Deal or No Deal, and Starburst.

What really sold us on Luckland, however, was the sheer quantity of great games connected to the Drops and Wins network, giving players a whole extra layer of prizes they can win.

All you have to do is play eligible games to have a chance at winning hourly, daily, and weekly prizes.

Bonuses and Promotions - 4.7/5

Luckland offers new players a generous 100% deposit match bonus of up to £50 and 50 spins on the exciting Starburst slot.

Both the spin winnings and the deposit bonus have a 40x wagering requirement attached and require a deposit of £20 or more to activate.

In addition to the welcome bonus, you’ll find a scalable reload bonus, promos for the (surprisingly good) sportsbook, regular challenges, and more.

So, if you ever feel bored of playing slots, you can also bet on sports[12]  at this UK site!

Payment Options - 4.8/5

Luckland accepts a huge range of payment options. UK players can use Visa, Mastercard, bank transfer, Trustly, PayPal, Astropay, MuchBetter, Skrill, and Paysafecard.

The payout times are also quite fast, with many options processing in under 48 hours, and the longest is expected to complete in six business days.

>> Claim your £50 welcome bonus [Luckland] <<

4. All British Casino — UK’s Best Slot Site for Slingo[13] 

Eastern Daily Press:

Welcome bonus for new players only | Maximum bonus is 100% up to £100 | Min. deposit is £20 | No max cash out | Wagering is 35x bonus | Maximum bet with an active bonus is £5 | Full T&Cs apply.


  • £100 welcome bonus
  • 10% cashback bonus
  • Over 1,000 slots
  • Tons of Slingo slots games
  • British theme


  • Few banking options
  • Limited promotion variety

Unsurprisingly, All British Casino is one of the best online casino slots sites for UK players — we mean, it’s in the name.

We love it because All British has one of the broadest collections of Slingo games we’ve seen anywhere, and what’s more Brit than blending slots with one of the UK’s most popular gambling games: Bingo?

Slot Selection - 4.9/5

With over 1,000 slots, you’ve got plenty to chase the boredom and blues away.

We found a nice selection of classic fruits and 7’s slots like Sticky Joker, Double Triple Chance, Something Fruity, and more right alongside great “Book of” games like Book of Ra, Book of Oz, and so on.

We were primarily interested in the change of pace found in the Slingo slots games like Money Train, Superspin, Lucky Joker, and more.

As much as we love classic slots, there’s something special about the way these games layer traditional slots gameplay with bingo-card elements.

If you haven’t tried a Slingo game, it’s worth checking out just for a change of pace.

Bonuses and Promotions - 4.7/5

Players who make their first deposit of £20 or more will get a 100% match bonus good for up to £100 with 35x wagering requirements.

One of the high points of this bonus is that there is no cap on how much you can win, putting it well ahead of some of the competition.

Not only that, but you’ll also get a 10% cashback bonus as well, which will help take some of the sting out of a bad run of luck, should you suffer one.

Payment Options - 4.6/5

You can load up your account with Mastercard, Visa, Neteller, Skrill, Trustly, Paysafecard, and bank transfer at All British Casino.

The minimum deposit for most options is a very nice £10, and most e-wallet payouts clear in under 24 hours, making this a great choice for players who don’t like to sit in limbo.

>> Enjoy a £100 welcome bonus [All British Casino] <<

5. Mr. Play – Best Bonuses of all UK Slots Sites

Eastern Daily Press:

Applies only to new depositing players. 18+. Min. deposit £10 Max bonus: £200, Min wagering 35x, Spins expire in 24hr. offer is available to players residing in the United Kingdom only. Full T&Cs apply.



  • £200 welcome pack + 100 spins
  • 1,300+ online slots
  • Daily Spin Frenzy challenges
  • Games from leading providers



  • Limited filtering options for games
  • Customer support is not the best

Last but not least, we have Mr. Play – the best UK slots site for bonuses. Let’s see what exactly it has in store for you.

Slot Selection - 4.6/5

At this UK online casino, you can scroll through over 1,300 slot games powered by top-notch software providers, including Microgaming, Play’N Go, and NetEnt, just to name a few.

You’ll have access to some of the most popular releases, such as 9 Pots of Gold, Wolf Gold, and Fire Joker.

Want to play some Megaways slots? You can find them here! Make sure to try out Majestic Gold Megaways and Aztec Gold Megaways!

Bonuses and Promotions - 4.5/5

Mr. Play awards all its new players with a £200 sign-up bonus plus 100 spins. To unlock it, you have to make a qualifying deposit of £10 or more.

The offer is split into the first 3 deposits, so there’s something exciting to look forward to each time you make a deposit. Spins are awarded on Starburst, Book of Dead, and Legacy of Dead.

This online casino tries to keep the fun going at all times. You can join its Daily Spin challenges to be eligible for extra spins every day!

Payment Options - 4.5/5

Mr. Play supports some of the most popular banking methods, including Visa, Trustly, PayPal, Skrill, and MuchBetter.

If you aim for fast withdrawals, make sure to opt for e-wallets, as they are the quickest compared to all other options.

>> Unlock a £200 bonus plus 100 spins [Mr. Play] <<  

How We Ranked the Best Slots Sites UK

By now, you might be asking yourself how we managed to rank and score the best UK slot sites, coming up with a list of the best of the best.

Simply put, we went over everything from customer support to slot variety and UK casino bonuses, in addition to many other things that might make or break your experience. Let’s highlight the most notable criteria.

Slot Games Available

While scope and variety were taken into consideration while examining each casino’s library of slot games, we were focused primarily on quality.

That’s why each of the best UK online casinos  on this list is comprised of games from the top, trusted providers like Pragmatic Play, Play’N Go, NetEnt, and so on.

Bonuses and Promotions

When ranking the best online slot sites in the UK, made sure to take a fine-toothed comb to the terms and conditions of every single welcome bonus available at all the best slot sites on today’s list.

Every online casino on our list has a generous welcome bonus as well as plenty of great promotions, and many of them manage to balance the deposit bonus size against the ease of completing the wagering requirements quite well.

Whether you play Megaways slots or slot games with progressive jackpots, our top picks have some generous bonuses waiting for you.

Payment Options

All the great slots and bonuses in the world are moot if you can’t make any deposits. We’ve paid close attention to every online casino to ensure that no matter how you like to fund your account, you’ll find a deposit method you are familiar with.

How to Play UK Online Slots: Beginner’s Guide

Are you ready to try your luck at some of the UK’s best online casinos for slots?

We’ve put together a simple guide to signing up at PlayOJO Casino, but you can follow the same steps to create an account at any slot site of your choice.

Step 1: Create Your Account

  • Visit the PlayOJO landing page and click “Join Now”.
  • Fill out your personal and contact information
  • Agree to the terms and conditions
  • Click submit

Step 2: Verify Your Email

  • Wait a few minutes and then check your email inbox for a confirmation link
  • Click the link to verify your account

Step 3: Claim Your Bonus

  • Head over to the cashier to make a deposit once logged in
  • Select a payment method
  • Deposit £10 or more to claim your 50 bonus spins on Book of Dead

Step 4: Play Online Slots in the UK

  • Open the online casino game section
  • Look for online slots
  • Find your favorite games
  • Play the best paying slots UK

Types of Slot Games Available at the Best Slot Sites in the UK

It’s no surprise that slot machines have evolved to have nearly as many different styles as card or dice games — and each handles gameplay differently. Let’s take a look at some of the most popular slot variations.

Three-Reel Slots

Three-reel online slot games are the gold standard of classics. When most people close their eyes and imagine a slot machine, this is the one that pops up. It’s simple and straightforward and generally does away with the frills and pomp.

Most three-reel slots have only one payline, which makes the gameplay simplistic and straightforward — too simple for some players. Even so, it’s hard to beat a well-executed classic.

Five-Reel Slots

Five-reel slot games are more common these days, with the extra reels making it easy to throw in unique gameplay mechanics, more paylines, and just more visual intrigue.

You’ll find many of the most popular online slot games following this design, including Big Bass Bonanza, Book of Dead, and Wolf Gold.

Multi-Payline and Multi-Reel Slots

Multi-payline and multi-reel slot games mix the game up even further, making it possible to create all sorts of wild rules, bonus features, and more.

Multi-payline slots are usually games with either a large number of paylines or a “pay anyway” payline, which counts a certain number of like symbols touching each other as a win.

Good examples of these would be Play’n Go’s Book of Dead and its sequel Tome of Madness, with pay clusters where you score wins when 4 or more like symbols are touching each other.

Multi-reel slots are what most people call slot games with 5 or more reels, especially in games where the number of reels available is dynamic and can be unlocked or expanded upon.

Video Slots

Video slots are a relatively recent adaptation to the gambling scene and feature things like digital animation (often to the symbols or background) to establish a difference between them and classic lever-and-reel games.

3D Slots

3D slots are perhaps a step more advanced than video slots, as most of the symbols, characters, and user interface are modelled and rendered in stunning 3d style, updating the looks of slot games to something closer to modern video games.

Progressive Jackpot Slots

Progressive jackpot slots all feature a jackpot that grows a little with each bet. A portion of every wager from every player is added to the prize pool, and some lucky player will eventually get a winning spin that lets them claim the entire jackpot.

These are exciting ways to play, but we recommend you do your homework beforehand, as most progressive slots have a lower RTP rate than regular online slots the UK has to offer.

Branded Slots

Branded slots are exactly what they sound like. These particular games have brand licensing deals from well-known properties (usually movies), letting players enjoy thrilling slot games based on Goonies, Creature from the Black Lagoon, Rick and Morty, and so on.

Though some branded slots seem to have little to do with the brand attached, others wind up incorporating elements from the properties in fun, clever ways.

Best Online Slots Real Money UK: Tips for Playing

Online slots in the UK are the ultimate game of chance, and the flashing lights, exciting features, and clever themes make it easy to get carried away.

To help you out, we’ve put together a few tips to ensure you always bring your top game to bear, no matter which game you play.

Stick With High RTP Games:

We recommend you stick with games that have a high Return to Player rate, especially if you’re new to online slots. Anything above 96% is solid and offers rather fair gameplay. Big Bass Bonanza and Starburst are excellent examples of games with decent RTP ratings.

Manage Your Bankroll:

It’s easy to get carried away with slot games, and too many players have burned themselves out chasing losses. The best slots players set a limit for how much they can lose before calling it quits for the day.

Learn Your Game:

With so many new slots coming out every day, software providers have to come up with new gameplay elements and features all the time to stay relevant.

While this is a win in regards to how much variety we have available to us, it also means that you can sit down at a slot and not have any idea how it works.

That’s why we recommend players play a few rounds in demo mode before playing slots for real money. It’s easier to make good decisions when you know what your options are.

Also, try to play slots at new UK online casinos – they usually offer larger bonuses to attract new players!

Best UK Slot Sites — FAQs

What are the Best Slot Games to Play in the UK?

While it’s a highly subjective question, we feel that Big Bass Bonanza is the best online slot for UK players.

The relaxing fishing theme and classic slot gameplay in the main game are fantastic — but the bonus round with its spin multipliers, exciting wilds, and unique bonus features like the dynamite fishing make this one of the most exciting slots in the UK.

Can I Play Online Slots on Mobile?

Yes, the best UK slots sites build their websites from the ground up with mobile compatibility in mind. This ensures that whether you wish to play from your desktop computer, iOS tablet, or Android phone, you’ll be able to enjoy the same popular slots.

Many of our top picks allow you to play other games on the go, too. You can play poker in the UK on your mobile, as well as other table games, and have endless fun.

Can I Play Online Slots for Free in the UK?

Yes, you can play online slots for free. Most UK online casinos offer a practice or demo mode, letting you try out the features of each game with fake currency before you play for real.

This is a great way to see if that particular slot is right for you.

What is the Most Profitable Slot Game Online?

Big Bass Bonanza at PlayOJO is one of the most profitable games we could find. This Pragmatic Play title comes with 96.71% RTP and features an amazing bonus round that you can access when you land three scatter symbols.

What Triggers a Jackpot on a Slot Machine?

The jackpot on modern online slot machines is triggered at random, thanks to advanced random number generators (RNGs).

The RNG generates a brand new seed number with each spin to determine the results. This means that each spin has the exact same chance at offering a jackpot payout as any other spin, ensuring a fair and fun online gambling experience.

Playing at trustworthy casinos guarantees that there are third parties verifying the fairness of these random number generators, so you can feel confident that you’re getting a fair shot at winning as all other players.

Ready to Play the Best Online Slots UK Has to Offer?

As you can see, there is a whole world of online slots loaded with big payouts, amazing graphics, and exciting bonus rounds.

While we firmly believe that PlayOJO is the best slot site in the UK, thanks to its rollover-free bonuses, a massive collection of progressive jackpot slots, and cashback with every bet — we fully understand that it might not be for you.

Regardless of where you decide to start playing slots online, just remember to focus on having fun and always play responsibly.


DISCLAIMER: The information on this site is for entertainment purposes only. Online gambling is risky.

If you suffer from a gambling problem or suspect somebody you know does, then we strongly suggest that you call the National Gambling Helpline at 0808-8020-133 to talk with an advisor for help and to make gambling safer for you or your loved ones.  Remember all gambling sites and guides are 18+ only.

Online casino sites listed on our site may not be available in your region. Check your local laws to ensure online gambling is available and legal where you live.

Visit these free gambling addiction resources:

Affiliate Disclosure: This is an affiliate post. We don’t offer casino games ourselves. Instead, we help you find a place to play. When you go to a casino via our site and play there, we receive compensation