10 Best Online Casinos in the UK - Ranked by User Experience, Fast Payouts and More

A survey conducted in 2016 determined that 56% of people in England gambled in 2016. That’s millions of people, and they all want to play at the best online casinos in the UK.

Players in the UK know what they want, and discerning gamblers are always on the lookout for top quality games from the best UK casinos. With the best ones offering top bonuses as well as fantastic RTP and gameplay, it’s an important decision when picking one that works for you - so we thought we’d help.Picking out the top casino requires you to weigh the pros and cons of a casino, including whether you think the welcome bonuses are the ones you want, as well as great customer service. We’ve done the hard work of filtering out the best ones at Superlenny, so you don’t have to.

What Goes Into The Best Online Casinos In The UK? The Superlenny.com Ranking Criteria

At first, we searched the web for 10 most visited sites in the UK and tested results in 10 different subjects. We signed up to each site and deposited money, played in live casinos and in the slot section. We scored them according to our findings:

Currently, the top 3 most popular casinos in the United Kingdom right now according to our data:

  1. Mr Green: 503,000 unique visitors per month
  2. LeoVegas: 544,000 unique visitors per month
  3. VoodooDreams: 39,400 unique visitors per month

With rigorous testing and casino ranking criteria they have to meet, we’ve established which casinos have the best bonuses, fastest payouts, unbeatable odds and more. We’ve boiled each top casino down to what you really want to know.

First Look: The 10 Best UK Online Casino Sites

Here are all the top 10 picks and what we liked about each:

  1. Top Overall Online Casino: STS
  2. Top Casino Customer Service: Rizk
  3. Best Slots Casino: Slots Million
  4. Best Welcome Bonus: Mr Vegas Casino
  5. Best Banking Options: 888 Casino
  6. Best Casino Cashback Bonus: Duelz
  7. Best Casino Loyalty Program: Voodoo Dreams
  8. Best Game Selection: LeoVegas
  9. Quickest Casino Withdrawals: Casino.com
  10. Best Sports Betting: Mr Green

We checked all of the ones available on our listings, and each one has pros and cons. At the end of the day there had to be a winner - and we think that STS Casino is the one that comes out on top. We liked that it has a great selection of slots both new and classic, fantastic customer support, and also lightning-fast payouts.

These are the top 5 aspects of picking a casino as the best of the best – we pay attention to the welcome bonus, the game selection, how good the customer service is, your casino banking options, and what the wagering requirements are when playing. Here’s our full list of all criteria which we use when rating a casino:

  • Safety: Modern and up to date tech softwares to keep users personal data safe.
  • Payment Options
  • Fast Withdrawals: Amount of time to withdraw money from operators.
  • Game Selection: Live table games, slots, jackpots, bingo and lottery.
  • Software developers: Game software from top quality developers.
  • Customer Service: Accessibility to service by email, live chat or phone.
  • User rankings: User comments and rankings from real players. 
  • Device Availability: Mobile/Desktop/Tablet

In Depth Review of the 10 Best UK Online Casino Sites

1. STS Casino - Most Overall Rewarding Experience.

From their amazing welcome offer to their huge selection of classic casino games and sports markets to bet on, there is nothing that they can’t provide when it comes to player satisfaction. They earned the top spot on our list for their amazing quality site, the welcome bonus that keeps you covered even if you lose, and their amazing loyalty program that rewards you just for playing. Whether you’re a fan of sports or a fan of the top casino games around, you’ll find what you’re after at STS.


  • Classic Slots
  • 24/7 Customer Support
  • Fast Payouts


  • Geo-locked outside the UK

+18. Terms and conditions found here: https://help.stsbet.co.uk/terms-and-conditions/

2. Rizk Casino - Top casino customer service

UK players know Rizk for its fun gameplay, its wheel prizes, and great bonuses – but one thing they can all count on is the brilliant customer service from the casino. It’s available 24/7 through a number of different methods, meaning that if you have any queries you’ll find the answer – whether it’s a question about their amazing welcome bonus or simply needing some help with the site. 


  • 24/7 Support
  • Many casino banking options
  • Great Bonuses


  • Doesn’t have a huge loyalty program

  • Not as large a casino as others

+18. Terms and conditions found here: https://rizk.com/gb/terms-and-conditions

3. Slotsmillion -  Best Slots Casino

Slotsmillion not only has an amazing website experience, with the best bonuses and ease of use for players, but it also boasts the world’s largest collection of online slots games. Its library contains an impressive 2500+ different slots to choose from – the only hard thing about using the site is deciding which would be your favourite.


  • Top quality slots
  • Big Jackpot Games
  • Excellent Game Selection


  • No Sports Betting

  • No live casino

+18. Terms and conditions found here: https://www.slotsmillion.com/en/terms-and-conditions/

4. Mr Vegas Casino - Best welcome bonus

Mr Vegas Casino's welcome offer is different for each country, but the exclusive one they’ve developed for UK casino players currently provides everyone signing up to the casino for the first time a 100% deposit bonus up to £100. That kind of value is hard to find when it comes to online casino bonuses, so it’s definitely worth a try! They also offer a huge range of games that offer players anything from classic slots, to bingo, to live casino.  


  • Exciting promos
  • Huge range of games
  • Own bank vault       


  • Promo is different for different countries

+18. Terms and conditions found here: https://www.mrvegas.com/terms-and-conditions/

5. 888Casino - Best Banking Options

888 Casino is one of the biggest names in the game – they’ve been operating for years and they know that customers want their casino play to be easy, quick, and efficient. As a result, their casino banking options are varied and effective, letting you simply deposit and play! With their top-quality game selection and website experience, they’re a player favourite and one of our favourites too!


  • Concurrent Promotions
  • Huge Game Variety
  • Plenty of banking options


  • May not be available in all countries.

+18. Terms and conditions found here: https://www.888casino.com/promotions/bonus-policy/

6. Duelz – Best UK Casino cashback

Duelz Casino is wildly popular in the UK, both for their great bonuses as their great casino games selection. However you’re still a winner, even if you’re not lucky in your games. Duelz offers cashback every single week, guaranteed. Friday will be your lucky day, with 10% returned to you from any of your losses. Duelz boasts over 1000 casino games to pick from, from some of the biggest game developers in the industry providing their games for players, meaning you can get your 10% cashback and also benefit from their great league games!


  • 24/7 high quality support
  • Weekly cashback
  • Over a thousand casino games


  • Some wagering requirements on their promotions

+18. Terms and conditions found here: https://www.duelz.com/en-gb/terms-and-conditions

7. Voodoo Dreams – Best casino loyalty program

Voodoo Dreams has taken the concept of a game casino to exciting new heights. Their loyalty program is like no other, allowing players to level up their Voodoo Level, giving them the opportunity to “cast spells” and duel. Whether you’re just here for a great casino game experience, or you want to level up your account magically, Voodoo Casinos offers probably one of the best online casino loyalty programs on the market for UK casino players.On top of this exciting loyalty program, you can also take advantage of their great welcome bonus, huge casino game library, and take part in their regular tournaments.


  • Exciting loyalty program
  • Hundreds of games to pick from
  • Great customer support


  • Very dark site theme may be different to what some players want

+18. Terms and conditions found here: https://www2.voodoodreams.com/en-gb/terms-and-conditions

8. LeoVegas - Best games selection

LeoVegas is hugely popular worldwide. With its lion mascot, huge range of games, and great customer support, it’s a fan favourite. We’ve given them the accolade of best games selection because we know there is something for everyone here. Whether you want to play a classic slot or experience the thrill of their Must Fall jackpots, a great time is guaranteed.


  • Games from top developers
  • Huge range of games
  • Great bonuses for all players     


  • You’ll be thinking about the advert!

  • Sometimes bonuses are tied to specific games.

+18. Terms and conditions found here: https://www.leovegas.com/en-gb/terms

9. Casino.com – Quickest Casino withdrawals

Not only does casino.com offer a stellar experience to players signing up from the UK with their 200% bonus, they also offer some of the best and quickest payment methods for players who don’t want to waste time with forms, and just want to get on with playing. This is just as well given the huge range of slots, table games, and live casino games they have available on the site. Whether you’re a new casino player or a seasoned veteran, there’s something for everyone.


  • Fast payments
  • Great welcome bonus
  • Great live casino


  • Not many table games

  • No live chat support

+18. Terms and conditions found here: https://play.casino.com/terms/general-uk/

10. Mr Green - Best Sports Betting

Mr Green’s online casino offerings are almost unrivalled – with a huge casino slot selection as well as sports betting, we gave them the position of best sports betting in our top ten list because of the quality of their bookmaking. With live betting, future markets, and harder to find markets like esports, they’re one of the online sports casinos that offers it all for UK players. With top promotions giving you back even more when you play, what’s to lose when signing up?


  • Great sportsbook
  • Over 1500 games
  • Exclusive games and offers


  • Some bonuses not available in all locations

+18. Terms and conditions found here: https://casino.mrgreen.com/en-GB/terms-and-conditions?_gl=1*2ziajw*_gcl_dc*R0NMLjE2Mzk2NjI0MDMuQ1BXR29yZTY2UFFDRlJQbHV3Z2RhTFFHSlE.&_ga=2.170562339.2093382301.1641723046-1294105976.1641723046

UK Online Casino FAQs

What Is The Best Online Casino In The UK?

After thorough research and comparison, we place STS Casino at the top of the list for the Best Online Casino in the UK. Their brilliant offers, huge selection of games, and solid online presence make them the winners out of all of the UK casinos online as far as we’re concerned. With so many to pick from it was tough, but they ended up with the top spot.

Is Online Gambling Legal In The UK?

Yes, online gambling is legal in the UK but the casinos in question should follow local UK legislation and regulations regarding gambling. For example, every bonus should have the terms and conditions clearly displayed near it, or they should be at most one click away. Be sure that whichever casino you play it is following the rules.

Can I Use Pounds At An Online Casino?

Yes, most online casinos that accept UK players will accept deposits and withdrawals in pounds. To be sure that you can play using pounds, check the banking methods page of any online casino to be sure. If they do not accept pounds then the most likely currency they will accept is the euro.

How Long Will It Take to Receive My Winnings?

By law UK casinos must not delay when sending you your withdrawals. The quickest payment methods are eWallets, which can process the payment in under 24 hours. For payment methods like bank transfer, it might take up to 72 hours. To be sure, check the casino banking page of the casino in question.

How Do I Win At An Online Casino?

With luck on your side, you can win any game you like. However, luck is fickle, and all casino games are a game of chance. Before playing a game, you should check the best strategies and if applicable the RTP of a game. When you’re logged into an online casino, you should focus most on managing your bankroll, having run, and not chasing your losses.


There’s a lot to pick from – and it’s not an easy decision! However we think we’ve distilled some of the best of the best into a ranking that gives you exactly what you’re after. While our research suggested that STS Casino was the best in terms of overall experience, ALL of the casinos we have mentioned feature a memorable collection of games, live casino, sports and bonus deals, each one ensuring that UK players enjoy an entertaining gambling experience.

If you’re ready to see what all the fuss is about, dive in and try them out!
Source: https://www.superlenny.com

The information on the site is for entertainment and education purposes. Third parties may change or cancel bonuses / offers and Super Lenny cannot be held responsible for incorrect information. Offers only apply to persons over the age of 18 who are resident in the UK. Please read the terms and conditions of each casino before registering or accepting a bonus. Play responsibly.

If gambling problems are affecting you, or those close to you GamCare is a leading UK provider that can guide you and give you advice. They offer support for anyone harmed by gambling issues and they are available to call or to live chat via their homepage at: https://www.gamcare.org.uk/.

Visit these organizations for free gambling addiction resources:

  • https://www.gamcare.org.uk 
  • https://safergamblinguk.org


Editor: Gemma Heathcote

Superlenny is a casino affiliate website. That means that Superlenny knows the ins and outs of the casino industry and their service to their customers. With many years in the industry we know what the players want and what they can expect.