Best Online Slots in the UK: Top 20 UK Online Slot Sites with High RTPs & Amazing Graphics
Most Exciting Real Money Slot Games for United Kingdom Players
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Disclaimer: Websites listed below are not intended for U.S. players. Always check your local laws to see if online gambling is available in your region and remember to please gamble responsibly. Underage gambling is an offense, all sites are 18+ ONLY. Gambling can be addictive, please play responsibly and only bet what you can afford. Casinos listed may not be available in your region.
The moment your reels come in is super-exciting, but it can become a little monotonous playing the same old slot games over and over again.
And that’s exactly why we’ve rounded up the best online slots in the UK that you can play right now.
Our 20 top-tier UK online slot sites have been ranked for their slot games, bonus spins, and overall user experience. In this article, we run through them all and point you in the direction of their best slot games.
And while we liked Mr Q and its high RTP slot game Rich Wilde and the Book of Dead the most, we feel there's something for everyone in the 5-reel melee!
Let's get started.
Best Online Slots in the UK
- Mr Q (Rich Wilde and the Book of Dead): Top pick overall
- All British Casino (Rise of Gods Reckoning): High RTP slot games
- Mr. Play (Wolf Gold): Best game features
- Casushi (Bigger Bass Bonanza): No. 1 for jackpot games
- Sun Vegas (The Sun Megaways): Best branded slots
- PlayZee (Zee Strike): Runner up for branded games
- Grosvenor Casino (Lord of the Ocean): Most reputable slots site
- 777 Casino (Millionaire Genie): Top pick for new slots
- Spin Rio (Gonzo’s Quest): Great slots promos
- Casumo (Sahara Riches): Best design
- PlayOjo (Mustang Gold): No wagering bonus spins
1. Mr Q (Rich Wilde and the Book of Dead) ― Best Online Slots in the UK Overall
20 Free Spins credited upon your first £10 deposit on Fishin' Frenzy: The Big Catch slot only, valued at 10p per spin. Free Spins must be used within 48 hours of qualifying. All winnings are uncapped and credited to your real money balance. Please note the full T&Cs apply.
Pros:
- Over 1,000 slots
- 20 bonus spins for new players
- Bingo available
- Refer-a-friend bonuses
Cons:
- Unclear VIP program
- Not available for players in the U.S.
Rich Wilde and the Book of Dead is an extremely popular slot game that can be found at multiple UK slot sites.
We feel that Mr Q is the absolute best place to play it, thanks to some awesome bonuses, a great mix of slot, bingo, and classic table games, and bonus spins galore.
Online Slots: 5/5
Rich Wilde and the Book of Dead is a 96.6% RTP slot game that has high volatility and can be played for real money or in demo mode. It’s been around since 2016 and part of its enduring popularity is the adventurous theme that makes it so playable.
At Mr Q, you can also play a range of Megaways slots and Slingo games, as well as massive jackpot games.
Other popular slot titles include Eye of Horus, Starburst, and Fluffy Favourites. You can also play live dealer games here, and Mr Q claims that “bingo is what they do best.” While we can’t confirm or deny that, one thing’s for sure―they do a great job with online slots.
Bonuses and Promotions: 4.6/5
When you first create an account and make a £10 deposit, Mr Q will credit your account with 20 bonus spins to be used on Fishin’ Frenzy: The Big Catch.
The only catch is that you need to use up your spins within 48 hours. Other than that, there are zero maximum wins and zero wagering requirements, which help to make this an attractive offer.
At Mr Q, you can claim regular refer-a-friend bonuses each time you successfully refer a mate. The reward is 10 bonus spins each!
Players can also enjoy free bingo tickets here.
Payment Methods: 4.4/5
Mr Q keeps things fairly tight when it comes to their payment methods. You can deposit via phone bill, PayPal, bank transfer, and credit cards.
Withdrawal methods are exactly the same. While withdrawal times take just 4-6 hours for PayPal and Visa direct, they can take as many as 3-5 days for Visa and MasterCard debit cards.
Withdrawal cancellations are no longer permitted at Mr Q, while £10 is the minimum withdrawal.
Reputation: 5/5
Mr Q is growing a strong reputation for itself as a go-to UK slot site for slots and bingo.
It’s owned and operated by Lindar Media Ltd., and has a wide range of reliable sister sites.
This slots site is fully licensed to operate in the UK, and we had zero issues playing games and requesting payouts here.
Misc: 5/5
Live chat is available around the clock at Mr Q, which is ideal if you need to contact them with an urgent question. And because Mr Q has numerous successful sister sites that essentially use the same software, you can expect an easy-to-use website.
Ready to get started with 20 bonus spins? Click here to sign up at Mr Q.
2. All British Casino (Rise of Gods Reckoning) ― Highest RTP UK Slots Online
Welcome bonus for new players only. The maximum bonus is 100% up to £100. Min. deposit is £20. No max cash-out. Wagering is a 35x bonus. The maximum bet with an active bonus is £5. Eligibility is restricted for suspected abuse. Cashback is cash with no restrictions. Skrill & Neteller deposits excluded. Cashback applies to deposits where no bonus is included. Please note the full T&Cs apply.
Pros:
- 100% up to £100 welcome bonus
- 500+ games
- Tournament games each day
- 10% cashback all week long
- Great high RTP slot games
- Also one of the best roulette sites in the UK
Cons:
- Not all games available on mobile
- Not available for players in the U.S.
With its iconic Spitfire logo, All British Casino is as British as online slot sites come. It’s made for Brits by Brits, and to that end, it’s got a range of popular games you’re destined to love.
These include our top slot pick―Rise of Gods Reckoning―as well as a great selection of Slingo games, jackpot games, and video poker.
Online Slots: 5/5
All British Casino is home to hundreds upon hundreds of slot games. Rise of Gods Reckoning is a big draw here―it’s a 96.2% RTP slot that comes with an ancient Greek theme, lots of cool gods, and lots of ways to win.
You can select a game according to the provider or its theme. Themes you can select include Megaways, “book of” series, sports, movies & shows, and animals.
All the live dealer games are provided by Evolution Gaming and there are over 50 Slingo games, as well as nine jackpot games, including the bank-busting Mega Fortune.
Bonuses and Promotions: 4.4/5
All British Casino’s welcome bonus is a 100% up to £100 offer. The minimum required deposit for this offer is £20, and the 35x wagering requirements are fair.
Other than that, regular plays can claim 10% cashback on their losses every single week.
Further information on regular offers was hard to find, but we soon learned that All British Casino emails you new offers every week.
You can also participate in daily and weekly tournaments and challenges (such as Raging Rhino) for more prizes and bonus spins.
Payment Methods: 4.5/5
There are seven payment methods available here: Visa, MasterCard, Skrill, Neteller, PaySafeCard, Trustly, and bank transfer.
According to the site itself, withdrawals typically process within 24 hours, which is slightly faster than average.
The minimum withdrawal is £10, while the max is £5,000.
Reputation: 5/5
All British Casino hasn't been in operation for too long, but we found it to be a very transparent UK online casino.
At the bottom of the homepage, you’ll find a “Behind the Brand” section that details its ownership and licensing situation.
On that note, All British Casino is regulated by the Maltese Gaming License, as well as the British Gambling Commission.
Misc: 4.9/5
All British Casino is committed to responsible gambling and makes it easy for you to take a break. In fact, you can use their time-out system to put a stop to your online gambling for anything from 24 hours to 6 weeks.
Ready to play high RTP online slots? Click here to join All British Casino today.
3. Mr. Play (Wolf Gold) ― Best In-Game Features of Any Online Slot Game in the UK
All bonus offers are strictly limited to one: (i) person; (ii) household address; (iii) email address; (iv) telephone number, (v) identical payment account number or linked Skrill accounts; (vi) IP address; (vii) computer; (viii) mobile device (mobile or tablet); (ix) e-payment account; and (x) application download and/or shared computer (by way of example only: public library, internet cafe or workplace). Please note the full T&Cs apply.
Pros:
- £200 welcome package
- 100 bonus spins for new players
- 1,000+ games
- 35 sports to bet on
Cons:
- Some pages take a while to load
- Not available for players in the U.S.
With a selection of more than 1,000 games and the chance to bet on sports, Mr. Play is something of an all-rounder in the UK.
It’s also home to Wolf Gold, which has excellent bonus features, and there are 100 extra spins on the table for new sign-ups.
Online Slots: 5/5
One of our favorite things about Mr. Play is that it’s got pretty much all the UK’s most popular slots! The best online slots here include Starburst, Book of Dead, Rise of Olympus, and our top pick, Wolf Gold.
Wolf Gold is a 96.01% RTP slot game that can be played for real money or in demo mode. It’s produced by Pragmatic Play and it has amazing features, including the bonus spins rounds with giant symbols and moon respins.
All in all, there are well over 1,000 games at Mr. Play. In addition to slots, you can play a wide variety of blackjack and roulette games, and new games are being added all the time.
There’s also a sportsbook where you can bet on thousands of markets.
Bonuses and Promotions: 5/5
Mr. Play’s welcome package is one of the best in the UK at the moment. As a new player, you can claim 100 bonus spins and as much as £200 when you make the first deposit.
The deposit bonus is split across your first 3 deposits. You can claim £50 when you make the first deposit, £75 when you make a second deposit, and another £75 when you make a third deposit.
Regular promotions are split between the online slot casino and the sportsbook and include the chance to win £10,000 in a Pragmatic Play tournament, a slice of the £6,500,000 Drops & Wins prize pool, and a PlayBoost over in the sportsbook.
Payment Methods: 4.4/5
Mr. Play is a worldwide casino site that offers regional payment methods. This means UK players can deposit and withdraw via the likes of Visa, MasterCard, PayPal, Trustly, AstroPay, Skrill, and MuchBetter.
There’s a link to Responsible Gambling at the bottom of the deposit window, which we think is a nice touch.
Note that some of the methods are slower at processing a withdrawal. For example, a Neteller withdrawal can take as long as two days.
Reputation: 5/5
Mr. Play has been around since 2017. Due to its success, it quickly added a sportsbook and has since then expanded its player base so that it’s now one of Aspire Global’s biggest online casinos in the world.
There’s also a separate page on the website that introduces you to all the iGaming developers they work with. These include the likes of Pragmatic Play, which is one of the biggest on the planet.
Misc: 4.7/5
Mr. Play’s sportsbook is definitely worth another mention.
You can bet on more than 35 sports and over 65,000 monthly events, which makes it an attractive proposition for anyone who loves playing a few slots and placing a few acca bets.
4. Casushi (Bigger Bass Bonanza) ― Best UK Jackpot Slots
New players only. 100% bonus on first deposit up to £50 & 50 bonus spins for Rich Wilde Book of Dead slot only. Game restrictions apply. Min deposit of £10. The max bonus is £50. Max bonus bet £5. Max bonus cash-out £250. 40x wagering requirements. Bonus expiry of 30 days. Please note the full T&Cs apply.
Pros:
- £50 welcome bonus
- 50 bonus spins for new players
- Amazing jackpot slot games
- 200+ slot games
- Great mobile casino
Cons:
- Not the best game variety
- Not available for players in the U.S.
Casushi is a growing UK online casino site that’s got thrills, spills, and more bonuses than you can shake a stick at.
It’s also got Bigger Bass Bonanza―a sequel to Big Bass Bonanza that gives you even more chances of winning big.
Online Casino Slots: 5/5
One of the things we liked about Casushi is its slot variety. There’s a great mix of classic slots, new slots, drop & wins progressive jackpot slots, and mobile slots.
Bigger Bass Bonanza is our top pick, with its 96.71% RTP, high volatility, and a slew of bonus rounds.
There are also some mega jackpot slots here, including Juicy Joker Mega Moolah, which currently has a £2,000,000+ jackpot that’s ready to drop, while Irish Riches, Book of Charms, and 10,001 Nights Megaways make up some of the newer titles.
Bonuses and Promotions: 4/5
New players who join Casushi are entitled to a 100% up to £50 welcome bonus. This offer also entitles you to 50 bonus spins, with 30 being added to your account on day one, and the rest being added over the next two days.
There are daily drops and weekly tournaments for regular players, with Casushi giving away an estimated £1,000,000 every month.
Their Drops & Wins, meanwhile, are a further fab way of boosting your bankroll.
Payment Methods: 4.5/5
Casushi currently accepts eight payment methods: Visa, Visa Electron, MasterCard, Maestro UK, Skrill, Neteller, Trustly, PayPal, and PaySafeCard.
The minimum withdrawal is just £10, while withdrawal times typically don’t take any longer than 48 hours.
Reputation: 4.8/5
Casushi is one of the newest online slot sites on our list. It was launched in 2020 during the pandemic, and it’s inspired by Japanese culture.
Despite its newness, Casushi is a site we trust, due to its wide range of successful sister sites available to UK players. It’s also fully licensed and SSL-secure.
Misc: 4.5/5
You can collect Casushi Points each time you place a bet, and the more points you accumulate, the more bonus spins you’ll get.
That said, not all slot games are eligible and each game has different ratings. For example, 40 spins for Legacy of Dead can be redeemed with 2000 Points, but you can grab 20 spins for Book of Dead with just 200 Points.
Excited to start collecting Casushi Points? Click here to join Casushi today.
5. Sun Vegas (The Sun Megaways) ― Best Branded Slots in the UK
New customers only. 100% deposit match up to £300. Min deposit £10. 50x wagering applies to the bonus + deposit amount, playable on selected slots only. Bonuses must be accepted within 72 hours and are valid for 30 days and wagering requirements must be completed within this time. The bonus amount can't be withdrawn. Max bet restrictions apply. Please note the full T&Cs apply.
Pros:
- 100% first deposit bonus
- Hugely established UK casino site
- Wide range of popular slots
- User-friendly website
Cons:
- Lack of weekly bonus offers
- Not available for players in the U.S.
Sun Vegas gets you started in the best way possible with a 100% up to £300 matched deposit bonus.
You’re then free to take your pick from hundreds of slot games, which include The Sun Megaways, a branded slot that has a 96.2% RTP.
Online Slots: 5/5
Sun Vegas is an established British casino site that knows exactly what British players want to play when it comes to slot games.
This is why you’ll find the usual favorites here, including Fluffy Favourites Remastered, Big Bass Bonanza, Wolf Gold, and Fluffy Mega Jackpot.
Indeed, there are plenty of jackpot games for anyone who’s patient enough to wait to see if the jackpot is gonna land for them. You’ll also find a great selection of Megaways slots and instant win games.
Bonuses and Promotions: 4/5
New players can grab a 100% up to £300 first deposit bonus.
On paper, this is a rock-solid welcome bonus, but the 50x wagering requirements might scare some players off. There are also no bonus spins up for grabs here.
On the flip side, many of Sun Vegas’s slot games give you the chance to win extra spins on the regular, while their loyalty program gives you the chance to convert loyalty points into prizes.
Over time, you could earn enough points to become a Priority Member, which gives you access to all kinds of cool perks, such as exclusive bonuses.
Payment Methods: 4/5
Sun Vegas covers numerous bases when it comes to funding your account. The likes of PaySafeCard, Skrill, and PayPal are accepted in addition to Visa and MasterCard.
The £1,000 maximum withdrawal is a bit on the tight side for us, especially if you happen to nail a massive jackpot win.
Withdrawal times vary hugely, with some taking as long as 2-3 days.
Reputation: 5/5
Sun Vegas is part of The Sun newspaper group, which helps to make it one of the most established UK online casinos.
Among the best online gambling sites operated by the same company is the ever-popular Sun Bingo, and this casino site is fully licensed by the UK Gambling Commission.
In short, Sun Vegas is a trustworthy online casino.
Misc: 4/5
Sun Vegas’s web design has barely changed over the past few years. That’s not necessarily a bad thing, because it remains one of the most stripped-back and user-friendly online casinos we’ve ever used. Everything is where it should be and it works perfectly on both desktop and mobile devices.
Ready to play some unique slot games? Click here to join Sun Vegas today.
Runners-up:
Ranking Methodology: How We Chose the Best Online Slots Sites in the UK
Online Slot Games: When choosing our best slot sites, the first thing we made sure of was that all our choices let you play online slots provided by the best iGaming developers. We also looked for high RTP games, progressive jackpot games, and all-around casino game variety.
Slots Bonuses and Promotions: Playing online slots is meant to be fun―and there's no better way to keep the fun going than with bonus funds and bonus spins. To this end, we added slot sites in the UK that excel when it comes to the best online casino bonuses, and especially their bonus terms and conditions.
Payment Methods: All of these UK slots sites are aimed specifically at UK players, which means there's every chance they accept your preferred payment methods. We also researched each online slot site to make sure they offer favorable withdrawal terms, such as high limits and fast transactions.
That said, these UK casinos don’t accept crypto, so if that’s something you’re interested in, check out our list of the best Bitcoin casino sites.
Reputation: Last, all our online slots sites are owned by reputable companies and fully licensed by the UK Gambling Commission to operate in the UK. We carefully looked into their history and removed any sites that had red flags.
Best Slot Sites in the UK: FAQ
What Is the Best Online Slot in the UK?
Mr Q’s Rich Wilde and the Book of Dead is the best online slot game to play in the United Kingdom, due to its cool graphics, exciting bonus rounds, and high payouts. It’s one of the latest additions to the popular “Book of” series―and we love it!
What Is the Best UK Slot Site for Winning?
All British Casino is the best slot site in the UK for winning because it’s got some of the highest RTP games and a great bonus to get you started. It’s important to remember, though, that it ultimately all comes down to luck.
What Slot Pays Out the Most in the UK?
Rich Wilde and the Book of Dead with a 96.6% RTP, available at Mr Q, is one of the highest paying slots in the UK. However, jackpot slots such as Bigger Bass Bonanza (available at Casushi) are the best if you’re feeling lucky. It’s important to remember that the outcome is still completely random, though, and whether or not a slot will pay out is a matter of chance.
Is It Legal to Play Online Slot Games in the UK?
Yes. it's legal to play slots and other casino games in the UK. However, slot sites are only legal if they've applied for a license and been accepted. This is why it's important to research this info before you create an account.
How Are Slots Bonus Spins Credited to My Account?
All the best slot sites UK credit your deposit promos and bonus spins in the same way. As soon as you opt-in to a bonus and make a qualifying deposit, bonuses will be automatically added to your account. However, always make sure to read the T&Cs of every bonus you would like to claim.
Are Slots Sites in the UK Safe?
The best slots sites, such as Casushi and Mr. Play, we feel are more secure sites to join. This is because they're fully licensed and legitimately owned and have put in place strong security measures, such as SSL encryption.
What Are the Most Popular Types of Slots to Play in the UK?
There are lots of different slot games, including video slots, jackpot slots, classic slot games, 3D slots, Slingo, and Megaways slots. There are also slot tournaments where you can compete with other players like you.
You can find all the popular slot games at most online casinos, and especially at the very best casino sites, such as Mr Q and Sun Vegas.
What are UK Slots Bonus Features?
Slot games come with bonus features, such as multipliers and bonus wins. Essentially, these represent ways to extend your stake so that you can keep playing the games for longer and increase your chances of winning.
Are the Top Slots Sites Licensed in the UK?
Yes. The UK Gambling Commission is the main regulatory body of all iGaming products in the UK. It licenses slot sites and keeps them in check so that they provide a fair environment for online gamblers.
How Do I Choose the Best UK Slot Sites for Me?
To help you choose the best slots sites, a good way to start is by reading an article like this one. Such a guide can introduce you to the best slots sites available in your country, while showcasing the things you might like (and not like) about each slots site.
However, we always recommend that you take a personal look at any slots sites that stand out to you to make sure it's got what you want in terms of the games, the bonuses, and the payment methods.
Comparison of the Top 5 Slot Sites in the UK
Let’s take another brief look at our top 5 picks.
Mr Q: Mr Q is home to the popular slot game Rich Wilde and the Book of Dead. It unleashes 20 bonus spins on your account upon sign-up, there are more than 1,000 slot games to pick from, and―as a bonus for UK players―bingo is also available! Overall score: 99%
All British Casino: Looking for a UK casino made by Brits for Brits? All British Casino, with its Spitfire logo, is exactly that. Here, you can spin the reels at Rise of Gods Reckoning and check out 500 other casino games, and compete in daily tournaments for more prizes. Overall score: 98%
Mr. Play: Mr. Play has all the popular slot games that British players love, including the feature-rich Wolf Gold. And with 1,000+ games in total, as well as a sportsbook, Mr. Play is a complete online casino. Overall score: 96%
Casushi: Casushi recently added a new slot game, Bigger Bass Bonanza, to its already jam-packed repertoire of slot games, progressive jackpots, and other casino games. This is a new casino site that looks great, and it’s got bonus spins on the table for new sign-ups. Overall score: 93%
Sun Vegas: Sun Vegas is a well-established UK casino site that’s part of The Sun newspaper group. It’s got the familiar red and white branding, as well as high-RTP branded games like The Sun Megaways. Overall score: 90%
Suggested Reading: Best online sportsbooks
How to Sign Up for a United Kingdom Slots Site
1. Click “Join Now”
Use this link to qualify for Mr. Q’s bonuses and start the registration process. When you first arrive on the homepage, you’ll see a white box offering you bonus spins if you click the blue “Join Now” button.
2. Enter a Username
The first of three forms then appears, asking for a username, a valid email address, and a password.
3. Enter Some Personal Details
The second form asks for your full name, date of birth, mobile number, and home address.
4. Agree to the Terms and Conditions
For the third and final form, you’re required to read and agree to the terms and conditions, confirm you’re aged over 18, and enter a promo code if you have one.
Be sure you’ve checked your local and state laws ensuring that site is legal and accepted in your area.
Related Article: Best USA online casinos
Have Fun Playing the Best Online Slots in the UK!
If you want to play slots online in the UK, these are the best slot sites, according to our research.
They've all been verified for their great online slot games, bonuses, and overall user experience.
And while Mr Q stands out, thanks to its 1,000+ slots and awesome first deposit bonus, you've got at least 20 slot sites to choose from.
Whatever you decide to do, it's important to remember that playing slots is meant to be fun, first and foremost, so we want to remind you to please play responsibly.
DISCLAIMER: Gambling involves risk and you must not gamble with funds you can’t afford to lose. It is not a solution to any financial difficulty. Remember, the house always wins!
If you believe you’re suffering from a gambling addiction or know anyone who does, call the National Gambling Helpline at 0808-8020-133 right away. Their advisors can help make gambling safe for you.
All gambling sites and guides are 18+ only. Online casinos listed here may not be available in your region. Don’t forget to check local laws to make sure it’s legal where you’re based.
Check out the free gambling addiction resources from these organizations.
