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Top 10 Best UK Slots Sites

Bonuses updated on 21 November 2024

  • Great welcome bonuses for new customers
  • Easy sign-up, fast cashouts and secure slots sites
  • Slots sites independently reviewed and approved
All Sites Are :UK LicensedUK LicensedSecure & TrustedSecure & TrustedFast WithdrawalsFast Withdrawals
18+ Advertiser Disclosure
Most Popular
9.9
Our Score
Views (648)
Welcome Bonus
Deposit £20
Get 250 Free Spins
+ 10 Ultra Spins
Get Bonus

18+ begambleaware.org. Invitation only. New accounts only. Min. £20 deposit, debit card only. Up to 50x wagering, game contributions vary, max. stake applies, 7 day expiry. See full terms.

Player Favourite
9.5
Our Score
Views (949)
Welcome Bonus
100% up to £100
+ 100 Free Spins

New UK based customers only. You must opt in (on registration form) & deposit £20+ via a debit card to qualify. Offer valid 7 days from registration. Welcome Bonus: 100% match up to £100 on 1st deposit. 50x wagering applies (as do weighting requirements). Free Spins: Awarded on Gold Blitz once you have staked £20 on any Games Global game. Spin value = 10p. No wagering requirements on free spin winnings. Full Terms

Exclusive
9.4
Our Score
Views (527)
Welcome Bonus
Bet £20
get 100Free Spins

New customers only. Deposit and wager £20 on Midnite Casino to get 100 Free Spins at 10p per spin, valid for 7 days on selected games. T&Cs apply. 18+ BeGambleAware.org

9.3
Our Score
Views (206)
Welcome Bonus
Stake £20
Get 100 Free Spins

18+, New customers only, register, deposit and stake £20 on Big Bass Bonanza within 7 days, and claim 100 Free spins on Big Bass Bonanza. Free spins expire 30 days after credited. Ends 31/12/23 at 23:59 GMT. Full T&Cs Apply. begambleaware.org.

9.1
Our Score
Views (306)
Welcome Bonus
100% up to £100
+ 125 Free Spins

New UK customers only. Offer valid for 7 days. Deposit & Stake Min £10. Debit card only (exclusions apply) 125 free spins (£0.10) on selected games only. Free spin winnings wager-free. Spins expire after 7 days. 18+ BeGambleAware.org. Bet the Responsible Way. Further eligibility and game restrictions & Full Terms Apply Full Terms apply

8.9
Our Score
Views (158)
Welcome Bonus
Stake £10
Get 50 Free Spins

To qualify for this promotion players must enter FREESPINS at registration. To activate the free spins, you must deposit and stake £10 or more on your first day’s play at QuinnCasino. 50 free spins (£0.10 per spin) will be credited by 4 pm the day after qualifying and must be used in full within 7-days. T&Cs apply | 18+ New UK and IE Customers Only | GambleAware.org | Gamble Responsibly

8.7
Our Score
Views (TBA)
Welcome Bonus
200% up to £200

First-time depositors • Min deposit £10 • Claim within 48 hours • Expires in 90 days • 30X wagering • Valid on selected slots • UK and Ireland only • Full T&Cs apply

8.6
Our Score
Views (186)
Welcome Bonus
Deposit £10 Get £40
+ 25 Free Spins

18+ begambleaware.org. New Customers only. Min Deposit £10 (Debit card only). Get £40 in Casino Bonus Funds + 25 Free Spins on Big Bass Splash. Opt in for bonus funds. Up to 50x wagering, game contributions vary, max. stake applies, new customers must opt in and claim offer within 24 hours and use within 30 days. Geographical Restrictions and T&Cs Apply.

8.5
Our Score
Views (117)
Welcome Bonus
Spend £10
Get 30 Free Spins

New members only, must opt in. Min £10 deposit & wager. 30 day expiry from deposit.18+. Free Spins: on MONOPOLY Paradise Mansion. 1p coin size, max lines. Bingo: Advertised ticket value based on £1 tickets. Game availability & restrictions apply.

8.4
Our Score
Views (54)
Welcome Bonus
Wager £20 Get up to 200 Free Spins

Grab up to 200 Cash Free Spins on Book of Dead! Wager £20 on slots and Get 40 Cash Free Spins for five consecutive days. 18+ new customers only. £20 stake on slots each day within 5 days of 1st deposit to qualify. £0.1 Spins on Book of Dead. £250 total max withdrawal. Full T&Cs apply

8.3
Our Score
Views (112)
Welcome Bonus
100% up to £150 + 10% cashback

Exclusive offer for selected new players only. Max bonus is 100% up to £150. Min deposit £20, Wagering 35x, max bet £5 with bonus funds. Welcome bonus excluded for players depositing with Skrill or Neteller. Cashback is cash with no restriction. Full T&C's apply. Gambling can be addictive, Play responsibly, 18+

8.2
Our Score
Views (107)
Welcome Bonus
100% up to £100

New customers only, min deposit £20, wagering 40x, max bet £5 with bonus funds. Max bonus is 100% up to £100. No max cash out on deposit offers. Welcome bonus excluded for players depositing with Skrill or Neteller. Cashback is cash with no restriction. Full T&C’s apply. +18, Please Gamble responsible. BeGambleAware.org

8.1
Our Score
Views (120)
Welcome Bonus
Stake £10
Get 200 Free Spins

New customers only. Opt In required. £/€10 min stake on Casino slots within 30 days of registration. Max bonus 200 Free Spins on selected games credited within 48 hours. Free Spins expire after 7 days. iOS app restrictions may apply. Email/SMS validation may apply. Not available in NI. Full T&Cs apply.

Did you know? We count the number of visits to each slots site every 30 days to give you the most detailed and accurate information.

How to Use Top 10 Best Slots Sites

While slot machines were naturally around for a long time before the popularisation of online slots – about a century before, in fact – there’s no doubt that these days, whenever slot games are mentioned, many of us immediately think of casino slots online.

Today, there’s no shortage of sites offering attractive online slots in the UK, ranging from long-established household-name bookmakers to more obscure, themed gaming portals. But if you’re on the lookout for the very best slot sites, you’ll need to spend time carefully researching and comparing before deciding where to play.

Thankfully, here at Top 10 Best Slots Sites, we’ve made it quick and easy for you to compare Britain’s top slot sites, via your smartphone or tablet device. The latter is an important detail: today, all of the best slots and the sites on which they are hosted are optimised specifically for convenient mobile play. That means they’re designed for the smaller screens of such popular devices, thereby helping to provide the most graphically impressive, slick and intuitive slot machine experience.

But there’s more to selecting the finest online slots websites than this, of course. You’ll also have to consider other factors when assessing and comparing slots sites. We at Top 10 Best Slots Sites go into these in detail below:

Types & Range of Slot Games

Do the slots websites that you are looking at feature both three-reel and five-reel slots? What about the distinction between popular generic slots like Starburst and Rainbow Riches, and branded slots based on popular media franchises, such as Deal or No Deal or Gordon Ramsay: Hell’s Kitchen? Do you have a preference when it comes to what you consider to be the best online slots? 

Many of the leading providers of slots online also offer at least some exclusive games – by which we mean, games you won’t find anywhere else – and intriguing variations on the traditional slots formula, such as Megaways and Slingo games.

Some casinos and slot websites make available hundreds of slot games, while others might have more than a thousand of the finest online slot games for you to sift through. You might be likelier to be satisfied by a site that offers a larger number of top slots, but this isn’t guaranteed – after all, some sites firmly prioritise quantity over quality, or vice versa.

So, it’s still important to consult the reviews of the best slot sites you’ll find on portals like Top 10 Best Slots Sites, to give yourself the best possible overview of what a given site does well or badly. 

Online Slots Promotions & Bonuses

Any good portal for casino slots, whether on a desktop computer or mobile device, will have a wealth of promos and bonuses to reward players both old and new. 

Discovering what a given slot site offers in this department is as simple as navigating to their ‘promotions’ page – but of course, doing so for every single online slot machine provider would be laborious and time-consuming. 

So why not instead check out our reviews and comparison charts here at Top 10 Best Slots Sites, so that you can discover the new-member bonuses, free spins, VIP schemes, and other promotions and bonuses that each and every well-rated slots website offers? 

Online Slots Website Interface & Usability

While there’s often a lot of overlap between online slot websites in terms of the exact slot games they make available to players, the main website’s design is also important. After all, it’s the first thing you will see when you log onto that site, whenever you’re next in the mood to find the best slots to play. 

This factor becomes even more crucial when you’re looking to play on the small screen of a tablet computer or smartphone. To provide a better experience to such players – including to allow them to find the best slots quickly and easily – the top slot sites use design features such as ‘hamburger’ menus, and might even give the user the option to download a dedicated mobile app for the site.

Privacy & Security 

Unfortunately, not all slots sites implement the fastidious and up-to-date security practices that they should. So, this is something else that our expert reviewers take a close look at when we review the best slot sites in the UK today.

Does the slots site you’re considering clearly explain what it does to keep your personal data safe? Is the most appropriately sophisticated encryption technology used, and does the site pledge not to sell or otherwise pass on your customer details to other parties? 

You could work all of this out by consulting the ‘privacy policy’ and ‘security’ pages on the top slot sites you’re thinking of registering with... or you could just consult our informative reviews here at Top 10 Best Slots Sites. 

Payment Methods

Another thing that tends to define the best slots sites is a broad range of accepted payment options. These are the methods you will use to put down a deposit so that you can start playing the given site’s online slot games. 

You might prefer to simply use the same Visa or MasterCard debit card for your slot site deposits that you use for your online shopping, or you may be given the option to use PayPal, Apple Pay, Paysafecard or Trustly – to name just some of the common options.  

With so many payment cards and e-wallets out there these days, it’s well worth knowing which payment methods each leading slots site accepts, as well as the conditions attached to their use – for example, any fees and minimum and maximum deposit and withdrawal requirements. 

Sign-up 

It might not seem a big deal what the account registration process is for your chosen online slots portal. After all, aren’t they all the same – basically just requiring you to provide a few details like your name, postal address, email address, and the username and password you intend to use? 

That might be more or less the case, but there’s an additional dimension as far as mobile play is concerned – ensuring signing up for the slots site is fast and convenient on a smartphone or tablet. 

If there are too many pages you are required to go through just to sign up to a particular provider of online slots in the UK, you might find yourself frustrated and eventually just give up. So, our reviews of the leading online slot websites also scrutinise this aspect of each and every site. 

Ease of Access 

Accessibility is another vital factor to consider when comparing the leading providers of casino slots online. You might presume accessing a given slots website is as straightforward a process as hammering the URL into your smartphone’s web browser – and sometimes, it is. But even some of the best slot sites out there sometimes fail when it comes to certain aspects of accessibility.

Not all slots websites have downloadable apps for both Android and iOS devices. Worse, some sites might not even be optimised for mobile play for those visiting them directly through a web browser. This could make simply trying to access and play games on a given site a rather frustrating experience that will leave you wishing you hadn’t bothered. 

It can be a tricky and overwhelming process to decide which sites offer the best UK online slots – never mind which ones also provide a suitably high-quality interface, promotions, bonuses, customer service, and so on. Plus, not every player has the same needs – so you’ll want to be sure that whatever site you pick caters to your specific requirements. 

So, don’t hesitate to check the comparison chart above to see and compare the latest top slots sites. That way, whether you’re on a desktop or mobile device, you will be able to quickly find the right site for you, and get on with the actual gaming!

WHY CHOOSE 32red?

32red site preview
9.9
Our Score
Top Highlights:
  • Unique bonuses & promotions
  • Popular with UK players
  • Multiple customers and industry awards
Special Welcome Bonus:
Deposit £20
Get 250 Free Spins
+ 10 Ultra Spins
What Our Expert Has To Say:
Top 10 Staff
"32Red appeals to players seeking a broad assortment of slots, roulette, blackjack, jackpot and poker games, as well as some less common options, such as Slingo. Its promotions and bonuses are also more varied and quirky compared to many obvious competitors, with both weekly and personalised promos on offer."

WHY CHOOSE jackpot-city?

jackpot-city site preview
productLogo
9.5
Our Score
Top Highlights:
  • Over 450 casino games
  • Live dealer gaming options
  • Multiple top-rated game providers
Special Welcome Bonus:
100% up to £100
+ 100 Free Spins
What Our Expert Has To Say:
Top 10 Staff
"Jackpot City Casino, a distinguished platform in the UK, offers diverse games, including over 400 online slots and live dealer options. Known for its unique casino games, such as online roulette, online blackjack, and game show-style titles, there's something for everyone. Partnering with top-rated game providers, the platform ensures a high-quality gaming experience. Their exclusive No Wager Welcome Offer stands out in the industry, offering a warm welcome to newcomers without the typical wagering requirements. With a strong emphasis on responsible gambling and numerous payment methods available, Jackpot City Casino caters to a wide spectrum of players while promoting safe gaming practices."

WHY CHOOSE midnite?

midnite site preview
productLogo
9.4
Our Score
Top Highlights:
  • Engaging Gaming Community
  • Innovative Customer Support
  • User-Friendly Design
Special Welcome Bonus:
Bet £20
get 100Free Spins
What Our Expert Has To Say:
Top 10 Staff
"Midnite Casino stands out as a prominent online gaming destination in the UK, captivating users with its impressive array of games. It boasts hundreds of high-quality slots, from classic to Megaways, alongside a rich selection of table games and live dealer options. The platform shines with its robust security measures, ensuring fair play and safeguarding user data. A responsive and feature-rich mobile app enhances the betting experience, allowing seamless gameplay across devices. Midnite's commitment to transparency and fair play is evident in its clear payout processes and competitive odds. Additionally, the platform fosters a strong community spirit with responsive customer support and community events. These attributes and diverse payment options, including cryptocurrency, make Midnite a top-tier choice for UK bettors."

WHY CHOOSE lottoland-casino-uk?

lottoland-casino-uk site preview
productLogo
9.3
Our Score
Top Highlights:
  • Exclusive and specialised casino games
  • Both generic and branded live-dealer rooms
  • Slingo, Megaways, and instant-win games
Special Welcome Bonus:
Stake £20
Get 100 Free Spins
What Our Expert Has To Say:
Top 10 Staff
"For a site that doesn’t make casino gaming its very first focus, Lottoland works well as a general casino portal. There are more than 750 slot games here alone, ranging from the familiar Starburst and Book of Dead to the less expected Gonzita’s Quest and NFT Megaways. You will also find nearly 30 live-dealer rooms here, including branded ones like Monopoly Big Baller: Live and Live Deal or No Deal. The site is as easy as you like to navigate and use, too, while the customer support section is as in-depth as we have seen on almost any casino platform."

WHY CHOOSE spin-and-win?

spin-and-win site preview
productLogo
9.2
Our Score
Top Highlights:
  • Large range of video slots
  • Fast payout speed
  • Scratchcards, arcade & bingo
Special Welcome Bonus:
100% up to £250
+ 100 Free Spins
What Our Expert Has To Say:
Top 10 Staff
"Spin and Win was first established in 2012 and it has since grown into one of the UK’s finest online casinos. Spin and Win has many features which help it stand out from other casinos, including several exclusive games produced by their own in-house software - Daub Games."

WHY CHOOSE betway?

betway site preview
productLogo
9.1
Our Score
Top Highlights:
  • Mobile casino for on-the-go gaming
  • Live chat & phone customer support
  • 500+ casino games available
Special Welcome Bonus:
100% up to £100
+ 125 Free Spins
What Our Expert Has To Say:
Top 10 Staff
"Betway Casino stands out as a premier destination for online casino enthusiasts. With a diverse and vast collection of games, from classic slots to the classic table games like blackjack and roulette, there's something for everyone. Their premium online slots are sourced from top software providers, ensuring a high-quality gaming experience. Their mobile casino feature ensures that players can indulge in their favourite games on-the-go. Whether you're a seasoned player or just starting out, Betway Casino offers a comprehensive and immersive gaming experience that's hard to match."

WHY CHOOSE grosvenor?

grosvenor site preview
productLogo
9.0
Our Score
Top Highlights:
  • Over 300 games
  • Generous bonuses and promotions
  • Top-ranked online casino
Special Welcome Bonus:
Deposit £20 Get £50
What Our Expert Has To Say:
Top 10 Staff
"Grosvenor Casino is owned by the Rank Group, a leading gaming company which operates over 50 land-based casinos in the UK. As such, you can be sure that Grosvenor Casino meets the very highest standards of professionalism and reliability. Grosvenor Casino has hundreds of slot games, casino games, live casino and more, and it’s fast becoming one of the UK's favourite places to gamble online."

WHY CHOOSE quinnbet-casinouk?

quinnbet-casinouk site preview
productLogo
8.9
Our Score
Top Highlights:
  • More than 2,100 games
  • Well-stocked live casino section
  • Almost 50 different Slingo games
Special Welcome Bonus:
Stake £10
Get 50 Free Spins
What Our Expert Has To Say:
Top 10 Staff
"Whether your tastes lean towards branded titles, generic games, stimulating live casino rooms with glamorous dealers, ‘drops and wins’, Slingo, or something completely different, you can expect to be satisfied at QuinnCasino. In fact, as it’s just one arm of QuinnBet, you will be giving yourself access to a comprehensive gambling empire when you register. With the site also looking as elegant and functional on mobile as it does on desktop, it’s an excellent choice of online casino for “on-the-go” play, too"

WHY CHOOSE 888?

888 site preview
productLogo
8.7
Our Score
Top Highlights:
  • No deposit bonus for new members
  • Parent company founded in 1997
  • Daily live casino VIP table
Special Welcome Bonus:
200% up to £200
What Our Expert Has To Say:
Top 10 Staff
"Even if you choose 888casino because of the 888 brand that’s been around for decades, you’ll probably stay for the various slots, jackpots, scratch cards, roulette, blackjack, baccarat and live casino games. Distinctive promo events run on the site from day to day, while the VIP scheme offers such rich rewards as prize draws and the chance to attend prestigious events. "

WHY CHOOSE unibet?

unibet site preview
productLogo
8.6
Our Score
Top Highlights:
  • More than 30 exclusive games
  • Almost 130 Megaways titles
  • Live roulette, blackjack, and more
Special Welcome Bonus:
Deposit £10 Get £40
+ 25 Free Spins
What Our Expert Has To Say:
Top 10 Staff
"Almost everything you could want from an online casino portal, you can expect at Unibet, encompassing branded, generic, and exclusive games alike, provided by a variety of respected software developers such as Pragmatic Play, Blueprint Gaming, and Evolution. There are also plenty of great ‘drops and wins’ games, Slingo games, and exclusive titles like Sonic Links and Unibet Lightning Blackjack. It’s all wrapped up in a straightforward-to-use, but sophisticated-looking interface, supported by a ‘community’ section that shows this is a gambling site in demand. "

WHY CHOOSE monopoly-casino?

monopoly-casino site preview
productLogo
8.5
Our Score
Top Highlights:
  • Monopoly and Hasbro themed games
  • Huge range of casino games
  • Special VIP programme
Special Welcome Bonus:
Spend £10
Get 30 Free Spins
What Our Expert Has To Say:
Top 10 Staff
"As its name indicates, Monopoly Casino is a casino site bearing the branding of the famous Hasbro board game. While the Monopoly game itself dates back to 1935, its online casino counterpart is naturally much more recent, and is operated by the Gibraltar-based Entertaining Play Limited, which is a subsidiary of the highly respected software developer and operator, Gamesys."

WHY CHOOSE kwiff-casino?

kwiff-casino site preview
productLogo
8.4
Our Score
Top Highlights:
  • Glamorous live-casino VIP tables
  • Both unusual and better-known casino games
  • Complete sportsbook attached
Special Welcome Bonus:
Wager £20 Get up to 200 Free Spins
What Our Expert Has To Say:
Top 10 Staff
"Whether or not you know Kwiff better for its sports betting arm, this is definitely a site that offers distinctive pleasures as far as online casino gaming is concerned. You’ll spot a lot of titles here that might or might not be greatly common elsewhere – think the likes of Cash or Crash Live, Monopoly Big Baller, Joker Poker, and European Roulette Darkmode. It’s all wrapped up in a sophisticated-looking website design that even makes it easy for you to look up answers in the FAQs database, without having to sift through page after page."

WHY CHOOSE all-british-casino?

all-british-casino site preview
productLogo
8.3
Our Score
Top Highlights:
  • 19 different games providers
  • Mobile-friendly and easy to use
  • 24/7 customer support
Special Welcome Bonus:
100% up to £150 + 10% cashback
What Our Expert Has To Say:
Top 10 Staff
"All British Casino isn’t just a love letter to the UK – it’s also got a whole vibe of its own. As soon as you land on the site, you'll notice that you are given the option to see games presented to you in any of a range of themes, such as ‘Megaways’, ‘Music’, and ‘Animals’. But really, whether you’re into video slots, table games such as blackjack or roulette, or all manner of other gambling opportunities from multiple respected third-party game developers, you are sure to find something to excite here. You will even spot some specifically ‘All British’ branded titles in your journey around the site."

WHY CHOOSE pub-casino?

pub-casino site preview
productLogo
8.2
Our Score
Top Highlights:
  • A vast library of games
  • Immersive casino experience
  • Unique Slingo games
Special Welcome Bonus:
100% up to £100
What Our Expert Has To Say:
Top 10 Staff
"Pub Casino has quickly distinguished itself within the UK's online casino landscape since its inception in 2023. With an extensive selection games, players are treated to a diverse range of slots, live dealer games, and unique Slingo offerings, ensuring there's something for everyone. The casino prides itself on its generous welcome bonus, which further enhances the appeal for new players. Accessibility is a key feature, with the site boasting comprehensive mobile optimisation that ensures a seamless gaming experience across all devices. The addition of a wide array of payment methods, including popular e-wallets and debit cards, underscores the casino's commitment to convenience and security. Furthermore, with around-the-clock customer support, players can rest assured that assistance is always at hand. Despite being a newcomer, Pub Casino has already established a reputation for providing a welcoming atmosphere, underscored by its excellent range of slots and games, making it a noteworthy contender in the UK online casino market."

WHY CHOOSE betfred?

betfred site preview
productLogo
8.1
Our Score
Top Highlights:
  • Trusted name in gambling
  • Intriguing exclusive games
  • A complimentary points scheme
Special Welcome Bonus:
Stake £10
Get 200 Free Spins
What Our Expert Has To Say:
Top 10 Staff
"The company that is now Betfred can trace its history back to the opening of a single Salford betting shop in 1967. It’s fair to say, then, that it’s one of the most reputable names in the British gambling industry today. Betfred Casino proves to be far more than just a casino backed up by a household-name brand; it really is a very well-rounded place to play online casino games, including slots, blackjack, roulette and more. The sources of support here are also strong, and the links between Betfred’s online presence and its well-known shops are similarly welcome."