Top 20 Online Casinos UK – View 20 best online casinos for UK slots players

Top 20 Online Casinos UK - View best online casinos UK

With the online casino world busier than ever before, we’ve made it easier for Brits to play slots and games with our very own top 20 online casinos UK. Browse through the following selection of our top 20 best online casinos to see who we’ve chosen.

New platforms with a UK Gambling Commission license are popping up all over. But with so many options, how do British players distinguish top online casinos in UK from the average?

This compelled us to select our top 20 online casinos UK from our list of best online casino reviews UK. All our chosen casino sites have the basics in place – plenty of slots & games from good providers, strong security, support for desktop and mobile devices etc.

But the top 20 slots UK sites offer more. We’ve selected every top 20 online casino site here for a reason. Below, we explain exactly why we think they are one of the top 20 UK casinos currently. Are you sitting comfortably?

1. MrQ Casino

MrQ - Top 20 online casino UK

One of the most highly rated slots sites on our UK online casinos list is MrQ Casino. MrQ is extremely popular with British players and easily tops our list of top 20 online casinos UK. They’ve really developed their library of slots and casino games, most recently by hugely expanding their live casino tables in February 2022. We’ve also managed to get an exclusive no deposit offer to get you off on the right track.

Why MrQ Casino? – They are our favourite no wagering casino. Why? Because they’ve scrapped wagering requirements completely – which is very rare. So everything you win at this site is yours to keep immediately.

Read our MrQ Casino review for more.

2. PokerStars Casino

PokerStars - Top 20 online casino UK

PokerStars Casino have improved massively – with loads of slots and games added. They also offer poker and sportsbook gambling for the complete platform. There’s a no deposit bonus for UK players too – and they’re our pick to try and get a £20 free no deposit casino. They’re a nice addition to our 20 best online casinos UK with no deposit.

Why PokerStars Casino? – This casino allows new players to play free slots with no deposit or card details to win real money!

Read our PokerStars Casino review for more.

3. Duelz Casino

Duelz - Top 20 slots UK site

Duelz Casino is the definition of a fast payout casino UK. We received our money from Duelz less than 5 minutes after we requested it which is incredibly quick. Add in the fact that there are plenty of slots and adventure type gameplay, Duelz were an easy inclusion into this top 20 slots UK sites list.

Why Duelz Casino? – Compete in slot battles against other players for another level of entertainment. Battle it out for rewards and prizes.

Read our Duelz Casino review for more.

4. Betfair Casino

Betfair - Top 20 gambling site

They’ve been one of the top 20 online betting sites for years. But Betfair wasn’t really considered to be a classic entry into a top 20 online casinos UK list. That’s now changed – with loads of slots and casino games added over the years. Betfair is also a possible no verification casino UK – which means they might be able to automatically verify your ID with no documents required. This is a decent feature that can save a lot of time.

Why Betfair Casino? – They are also one of our Visa fast withdrawal casinos – where you can benefit from fast Visa payouts if you win some money.

Read our Betfair Casino review for more.

5. Pink Casino

Pink Casino review banner

A recent addition to our site – but they’ve entered our top 20 UK casinos straight away thanks to their quality platform. You can play more than 2500+ slots and games at Pink Casino – with exclusive games made just for their players

Why Pink Casino? – Get a nice welcome bonus and follow it up with plenty of promotions for existing players if you continue to play.

Read our Pink Casino review for more.

6. - Top 20 online casino UK has a lot to live up to but they offer a wide selection of games and other features which more than meet the needs of such a name. You can get in touch with their support team 24/7, with loads of different casino promotions throughout the week. You can deposit 20 get bonus too, as shown above.

Why – Relatively low wagering is attached to your welcome bonus, making it very attractive (see: How to beat wagering requirements).

Read our review for more.

7. Paddy Power

Paddy Power - Top 20 gambling site

One of the UK’s top 20 online betting sites is also one of the top 20 UK casinos in our view. They’ve expanded their casino platform considerably over the past few years, offering a wide range of top quality games from popular providers. They’re also one of the few sites with the possibility of playing free scratch cards no deposit.

Why Paddy Power? – They have many promotions for existing players – so there will be plenty more offers you can take advantage of once you’ve signed up.

Read our Paddy Power Games review for more.

8. Platin Casino

Platin Casino - New Top 20 slots UK site

It’s a bold move to include new online casinos into this 20 best online casinos UK collection. However, Platin Casino more than meets the requirements! There are 1500+ slots and games from several top game providers to play, along with deposits as low as £5. This makes them an easy addition to our top 20 online casinos UK list.

Why Platin Casino? – You can deposit and play using a variety of methods – and they recently became an elite PayPal casino in the UK.

Read our Platin Casino review for more.

9. Playzee Casino

PlayZee Casino review banner

Playzee Casino is a fantastic addition to our top 20 online casinos UK list due to the sheer number of games they offer. Play all the classic entertainment – slots, live, table etc – with more than 1000 games to choose from overall to make this one of the best British gambling sites as a whole.

Why Playzee Casino? – They offer a 300 deposit bonus UK which is quite rare these days – but offers you the chance to get a lot of bonus money on your first deposit if you want.

Read our Playzee Casino review for more.

10. 777 Casino

777 - Top 20 online casino UK

777 give free spins on SMS verification for new UK players. This means you’ll get the above free spins offer once verifying your mobile number. They are also known to give out casino bonuses and other promotions to existing players. You can use all these on their exclusive in-house games too – so you can try out different games.

Why 777 Casino? – They have a great overall casino platform with years of experience behind the scenes, which paved the way for their entry into our top 20 UK casinos! Enjoy a batch of exclusive free spins no deposit when signing up as a new UK player.

Read our 777 Casino review for more.

11. Casumo Casino

Casumo - Top 20 online casino UK

Casumo completely revolutionised iGaming in 2012, with players embarking on a journey in order to get casino rewards. Casumo have since racked up multiple awards for their efforts (Casumo Wikipedia – Awards). But they’re constantly making improvements to this day too, like adding Slingo which is a new type of game popular with the English. In fact, Casumo are one of our top Slingo sites UK now along with being one of our top 20 slots sites UK.

Why Casumo Casino? – There’s nothing like a trendsetter, so Casumo sailed into our best British online casinos for how they’ve shaped online casino entertainment. We’d even consider them one of the top 20 casinos in the world.

Read our Casumo Casino review for more.

12. LeoVegas Casino

LeoVegas - Top 20 online casino UK

LeoVegas has been a fantastic site for UK players for many years. Making them an easy addition to our top 20 online casinos UK. They pioneered the idea of mobile casino and led the way for the rest to follow on smartphones and tablets. We consider them one of the top 20 casinos in the world online.

Why LeoVegas Casino? – LeoVegas have exclusive slots that can only be played on their site – so you can guarantee something new and different to play.

Read our LeoVegas Casino review for more.

13. William Hill Casino

William Hill - Top 20 gambling site

Being one of the top 20 UK betting sites, you couldn’t really have a 20 best UK online casinos selection without William Hill Casino, right? Well, to be honest, we aren’t interested in what fits the bill aesthetically – it’s all about casino for us. Luckily, William Hill have made major upgrades to their slots play recently which has improved the experience considerably.

Why William Hill Casino? – Join for a dedicated casino bonus at this top 20 online casino UK – with more promotions for existing players after.

Read our William Hill Casino review for more.

14. PlayOJO Casino

PlayOJO - Top 20 casino UK

Known as “the fair casino”, PlayOJO have seen their popularity explode after they got rid of playthrough requirements once and for all. This means you will get free spins no wagering whenever you get a bonus.

Why PlayOJO Casino? – You can activate bonuses using e-wallets such as PayPal – which many other sites don’t allow.

Read our PlayOJO review for more.

15. Unibet Casino

Unibet - Top 20 online casino UK

Another of the 20 best UK casinos is the well-known Unibet. They know what UK players want too with games like Slingo and scratch cards available which are popular with British players. You can browse through Unibet’s vast selection of titles to find what you want to play, with plenty of flexible payment options too at this best British online casino. They’re a solid platform all over, being one of our picks for top 20 casinos in the world.

Why Unibet Casino? – You can deposit 10 get bonus at Unibet, giving you more to play with when you get started.

Read our Unibet Casino review for more.

16. Dr Slot Casino

Dr Slot - Top 20 UK online casino

Another site that’s good enough to be one of our top 20 online casinos UK is Dr Slot. They happen to be one of the few pay by phone casinos available in the UK with low minimum deposits.

Why Dr Slot Casino? – They are known to be a quick verification casino, so any documents should be verified quickly so you can start to play.

Read our Dr Slot Casino review for more.

17. Bonus Boss Casino

Bonus Boss - Top 20 online casino UK

The Bonus Boss Casino provides unique slots and casino games that can’t be played at any other site. You can spin away on something new nearly every month too, as that’s the average time it takes for a new game to be released. They regularly give out a Game of the Month bonus for existing players to enjoy these special games.

Why Bonus Boss Casino? – Being a £5 PayPal deposit casino, you can play here with as little as a fiver using one of Great Britain’s most popular payment methods.

Read our Bonus Boss Casino review for more.

18. Yeti Casino

Yeti - Top 20 casino site

Not all of the top 20 online casinos UK are some that you’d expect, but they’ve all been included on pure merit! Take Yeti, for example – a gambling site which doesn’t take itself too seriously, hence the name! You’ll find the same quality slot providers though, with regular promotions to see you through.

Why Yeti Casino? – Get things off to a great start with no deposit Starburst free spins.

Read our Yeti Casino review for more.

19. Mr Green Casino

Mr Green - Top 20 online casino UK

One of the UK’s most popular sites, so they had to make their way onto our list of best British online casinos in our view. They offer a wide range of top quality games from popular providers, and they continue to improve their platform for players – despite being around for several years. You can get free spins on card registration too.

Why Mr Green Casino? – They have their own exclusive slots made just for them, so you can play unique games here. A selection for one of the top 20 casinos in the world online.

Read our Mr Green Casino review for more.

20. NetBet Casino

NetBet - Top 20 slots UK site

The next of our top 20 online casinos UK is NetBet. They have been around for many years but still offer a great casino experience for British players. You can get the above UK bonus when signing up as a new player.

Why NetBet Casino? – Enjoy a variety of slots and casino games, alongside a sports betting platform for all different types of gambling under one roof.

Read our NetBet Casino review for more.


At the moment, we think the best casino online in the UK is MrQ Casino. We think they are the best because of their no wagering, fast payouts, and other features. They have topped our online casino top 20 list because of this.
We look at many things when deciding who makes our list of top 20 online casinos UK and in what order. Here are some of the things we like:

  • Range of popular UK payment options
  • Fast withdrawal speeds
  • Good overall number of games
  • Partnerships with top online slots UK providers – like Playtech, Microgaming, NetEnt, Yggdrasil, Play’n GO, Evolution, Quickspin and more.
  • Fair and fun bonuses
  • Good feedback from our readers
There’s no specific date. But we update the casinos here regularly so that we’re always recommending the top online casinos in UK at the moment.
All of our top 20 casino sites have been picked for a reason. We explain exactly why each casino has been picked on this page.
Yes – but only if they’re good enough. We don’t just add sites to our top 20 best online casinos because they’re new and different. They’ve got to offer the best features. At the moment, you’ll find a few of the latest casinos have been included.
The best way to suggest a site for our list is to leave a comment on the casino’s review. The opinion of our readers helps us to decide our 20 best UK online casinos. So telling us why you think a site is one of the top online casinos UK you’ve played at gives us a good indication.