What are the best UK online casinos?

Casinos aren’t always clear about their main offer, so here are a few pointers to help you find the best online casino in the UK for you. Choose Based on Casino Type Online casinos in the UK come in many forms, with some providing downloadable clients, app support and even on-site mobile support which most people refer to as ‘mobile casino. Preparing for gambling with the best online casinos UK for 2021. There are several popular online casinos UK to consider as a permanent option for gambling. However, before we go into gambling and the history of playing casino games in the UK, players must understand and prepare for the decision ahead. No Deposit Casino Bonuses 2021. #AD 18+, 10 free spins on registration (max withdrawal is £100) New customers only, min deposit £20, wagering 40x, max bet £5 with bonus funds. 100% up to £99 bonus + 99 free spins on 1st deposit. No max cash out on deposit offers.

It's a question punters have been asking for more than 2 decades! And the short answer is, there are bucket loads of excellent online casinos focussed on the UK market.

We list them all below. Each of the online casinos we reviewed had to meet a set of strict criteria before they made it in. And what's more, we're constantly on the look out for better casinos for our visitors every day.

New online UK casinos are being launched all the time, and tech moves at lightning pace, so nothing stays the same forever and no one casino gets to claim the title of the UK's best for too long.

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Luckily our list below is fresh and up to date for 2021. Plus, we add new and remove old casinos all the time, so bookmark this page as it doesn't sit still for long! We have searched high and low across the Internet, worked day and night (tirelessly) to bring you, what we at Roger.com, are currently rating as the best UK online casinos for 2021.

Finding the best UK online casinos

So where do you start? Everyone will have their own opinions of what's important for them when they choose a casino at which to play. We've outlined what is important to look for and based our results on these criteria. In a nutshell we rate our casinos based on our own experience of them plus the following key items:

Cross device compatibility of the casino and the games available

Some online casinos look beautiful when displayed on a big monitor or tablet, but fall apart when they're viewed on a smaller mobile device.

There's nothing more annoying than having to battle with fiddly functionality when you're trying to sign-up, login, browse, deposit, withdraw and especially play an online casino game.

If we experienced embuggerance whilst using an online casino on our mobile phones (mobile web sites not native apps) then that casino simply didn't make the below list.

Genesis (group) currently offer what we think are the best built casinos for desktop and mobile experience. Some of their brands include Kassu, Casino Lab and Casoola.

Their themes are fun and lightweight, choice of games comes in at more than 1,300, with more being added all the time. Plus the welcome bonuses on offer at these casinos are designed to be some of the best available to the UK market.

A large number of online casinos offer ‘native apps' that you can download from the App Store and Google Play. However, we found in many cases that the apps are simply a PWA, effectively the casino's website within an app wrapper. Therefore the experience wasn't much better than it would have been at the mobile website. We are generally in favour of a beautiful mobile friendly web app over a potentially intrusive smart phone native app.

The number of games on offer

There are a ton of fantastic award winning game developers that continuously release new games (casino, slots and bingo). These guys are battling to create the best experience for the online player and this will come in many forms.

For example, graphics and soundtrack, game design, playability, game theme, potential winnings, licencing and regulation. Let's face it, very little in life comes close to the rush you get when you know you're about to hit a big win on a slot machine, and these developers are making that experience more and more thrilling all the time.

Classic online casino games are also getting much better and exciting. Not so long ago it was easy to get bored at a casino table game. As in, within minutes you'd find yourself looking for something else to play.

But the classic casino options are now streets ahead of what they used to be. Game developers have managed to make vast improvements to gameplay, functionality and, believe it or not, ambience too. Plus with the introduction of bet multipliers you can find yourself seeing some very big wins.

Ideally you want to join an online casino that offers a large selection of new games and old favourites, from a selection of the best game developers. NetEnt, Play'n GO, Evolution Gaming, Quickspin and Thunderkick to name a few.

However, look out for InTouch Gaming who are a UK based company with a suite of online casino brands. They build all of their games in-house, and whilst the choice is smaller than lots of other casinos, the quality of games is excellent as are the no deposit bonuses on offer with them.

Casino Games Uk

In our experience, once you have a handful of casinos games and online slot games that you're happy with, you tend to stick with them. Familiarity of a game is likely to improve your chances of winning. That being said, however, sometimes a huge new game release comes along that simply has to be checked out!

Live casino options at online casinos in the UK

Talking about ambience, live casino is fast becoming a big thing, again as technology improves and internet speeds allow faster, better connections, live casino is beginning to emulate a real life casino experience (okay minus the buzz of sitting at a table next to strangers and getting free drinks brought to you). Nonetheless, from where we were 10 or even 5 years ago, the live casino experience is 100x better now.

Make sure your online casino of choice offers live casino options. If you've never played at a live casino it can be a bit strange at first, but you'll get used to it in no time.

Online casinos UK player ratings

Nobody knows better than the player themselves whether or not an online casino is any good. We've sampled loads ourselves and had good experiences and bad experiences. We wouldn't recommend a casino to you that we thought wasn't cutting the mustard. In fact we are pretty picky about which casinos we feature.

Another cross check we perform is reading through real player ratings of online casinos (syphoning out the old ‘fakes' and assessing the genuine ones). A skill that takes time to develop! If we read a load of bad reviews about a certain online casino then that's good enough for us. They won't make the list of the best.

Ease and choice of deposit and withdrawal methods

This is something that's become better and better in the UK. Strict regulation has forced online casino operators to be very careful with which deposit methods they accept and which ones they don't. For example you can not make a deposit at a UK based online casino anymore using a credit card. Debit cards and e-wallets are the norm now and rightly so. Bank transfers are also accepted but these can take more time to process.

When it comes to withdrawing your winnings this can vary. Some casinos pay out immediately (within an hour) and others can take up to 3 days. There are often restrictions on how much you can withdraw per day and sometimes a small fee or charge will be applied too. All in all, the online casinos featured below will pay all winnings out within 3 days.

Licencing and regulation bodies

The UK has, by a long shot, the most established online gambling regulatory body in the world. Whilst much of the world has been burying its head in the sand and pretending that online casinos and sports betting sites don't exist, the UK has stepped up to the mark and created some of the most stringent regulations.

This is a great thing, gambling and betting is supposed to be fun. It's a past time that millions of people enjoy, so rather than allow the industry to get out of control the UK Gambling Commission has taken a tough stance on player safety, and in turn created a well regulated and fun environment. All of our featured online UK casinos have received licences from the UK Gambling Commission.

Malta is another centre for regulating online casinos, especially for the rest of Europe. Whilst a Maltese licence in itself isn't enough to allow an online casino to market itself to the UK, it is a good indicator that the casino is responsible and regulated to a high degree.

Customer service

Generally speaking online casinos UK customer service has come on leaps and bounds over the last few years. In particular since the UK Gambling Commission has started to enforce stringent standards within the industry. Many big names UK casinos, and in particular the ones featured below offer multiple ways of getting in touch with them.

Most online casinos now offer live chat, either by way of via their own platforms or using services like Facebook Messenger. Email and telephone support is also available, some online casinos offer this during UK working hours, others from about 9 am to 1 am (UK) time and a few 24 hours a day.

FAQ sections on their websites is becoming much better too. In fact, there is very little that you won't find in terms of answers to the questions you're most likely to have regarding bonuses, deposits, withdrawals, winnings, etc.

What types of games are you looking for?

Some online casinos are specialised in classic casino games such as roulette, blackjack, keno and poker. Whilst others are heavily weighted towards slots. When we say slots we don't just mean your bog standard one arm bandit types, or pub style fruit machines. We're talking about state of the art, modern day, themed in all kinds of ways video slots. And they're highly entertaining. Plus the winnings can be huge. Try 100,000x your stake for some. 50,000x and 25,000x your stake being pretty standard. That means that in one spin you could win literally hundreds of thousands of pounds back.

Best UK casino welcome bonuses and promo codes

Now, this is where it gets interesting. You want to be looking for an online casino that offers loads of classic casino games, slots and live casino, but you also want to ensure that it's worth your while signing up to one. By that we mean what's on offer? What are the promos, free spins, no deposit options, wagering requirements. If you have a big win how long will it take you to get your money and will there be a withdrawal fee.

We've written an entire article on the 12 best no deposit and low deposit casinos in the UK where we focus on UK focussed casinos offering new players no deposit bonuses. This means that you get to try out a casino before you deposit any of your hard earned money. It's a good way to get a feel for an operator and at the same time play some slots and casinos games for free (following age verification).

The only downside is that no deposit casinos don't offer the biggest of welcome offers. You'd be lucky to get say 20 free spins and £20 to play with. Plus the wagering more often than not isn't that great.

We recommend spending a tenner somewhere, which is usually the minimum required deposit amount, and benefiting from bigger and better sign up offers. Such as 100-150% deposit match bonuses, plus more in the region of 200 or 300 free spins. Wagering requirements will be less too, meaning that you can withdraw bonus winnings without having to wager as much as you would a £0 no deposit casino.

Ongoing promotions for existing players

A major gripe of the seasoned online casino player is that once you've used your welcome bonus that's it. No more freebies and being looked after. However, this isn't the case nowadays. Almost all UK online casinos run regular promos and bonuses for existing players. It's just like being in a land based casino. If you're a regular they're going to look after you!

The best online casinos in the UK give away millions of pounds worth of offers each month to their players. Sometimes these come in the form of deposit match bonuses, free spins and

You'd be surprised to know how willing most UK online casinos are to dish out free spins and bonuses just for asking. Give it a go, contact customer services and ask them if they're running any promos. Bet they are!

12 of the best online UK casinos in 2021

So, here we go. A shortlist of what we currently think are the 12 best casinos available to (and specifically built for) UK players. Results are based on which contenders met the above criteria.

#1 Kassu Casino

Current Kassu promo: 100% deposit match bonus plus a mega 300 free spins (claim this offer now). Wagering requirements and minimum deposit of £10 apply.

#2 Bonus Boss Casino

Current Bonus Boss promo: 300% deposit match bonus and 100 free spins + 20 no deposit free spins! (claim this offer now). Wagering requirements apply. No deposit required 🎉

#3 Mr Spin

Current Mr Spin promo: 50 free spins (no deposit) and 100% up to £100 (claim this offer now). Wagering requirements apply. No deposit required 🎉

#4 Play Frank

Current Play Frank promo: 100% deposit match up to £100 and 50 free Starburst spins (claim this offer now). Wagering requirements and minimum deposit of £10 apply.

#5 Casino Lab

Current Casino Lab promo: 100% deposit match up to £100 and 300 free spins (claim this offer now). Wagering requirements and minimum deposit of £10 apply.

#6 Gala Spins

Current Gala Spins promo: Deposit £10, get £20 and 30 free spins (claim this offer now). Wagering requirements and minimum deposit of £10 apply.

#7 The Sun Vegas

Current Sun Vegas promo: 100% deposit match bonus up to £300 and 20 free spins (claim this offer now). Wagering requirements and minimum deposit of £10 apply.

#8 Cashmo Casino

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#9 Casino 2020

Current Casino 2020 promo: 30 no deposit free spins and £300 deposit match + 400 free spins (claim this offer now). Wagering requirements apply. No deposit required 🎉

#10 Fairground Slots

Best Uk Casino Slots

Current Fairground Slots promo: Win 500 free spins on Fluffy Favourites Playground (claim this offer now). Wagering requirements and minimum deposit of £10 apply.

#11 Casino Planet

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#12 BGO

Current bgo Casino promo: Win up to 500 free spins on the Mega Wheel (claim this offer now). Wagering requirements and minimum deposit of £10 apply.

If you’re looking for an online casino to play Rainbow Riches, don’t settle for second best. As one of the world’s most popular slot games, the Irish-themed fable favourite is a staple amongst the top slots sites. Developed by Barcrest / Scientific Games back in 2009, the lucky leprechaun is now a classic slot machine thanks to a pick me bonus, pots of gold feature and roads to riches game.

A quick summary of the Rainbow Riches Slot

Rainbow Richest is Barcrest’s flagship slot game within the Rainbow Riches franchise and also the first. Introduced more than 10 years ago, it is the prequel to Rainbow Riches Megaways, Rainbow Riches: Drops of Gold, Rainbow Riches: Pots of Gold, Rainbow Riches: Daily Rainbows, Rainbow Riches Free Spins and Slingo Rainbow Riches.

All of the different Rainbow Riches slots feature bonuses, colourful graphics and high-tempo gameplay, but the original is still the most fun to play. Along with a 95% RTP (return to player), 20 pay lines, bet lines from £0.01 to £25.00 and a high frequency of 27.0%, Rainbow Riches offers a 500x jackpot and a maximum win of £250,000.

You can unlock Rainbow Riches’s features as per the slots pay table. The wild symbol substitutes for all other symbols apart from bonus symbols. 3 x leprechauns activate the road to riches, 3 or more wishing wells trigger the wishing well feature and 3x pots of gold start the pick and multiply bonus of the same name. Despite not using free spins, Rainbow Riches is incredibly well put together in terms of bonus software.

Top casinos for Rainbow Riches slots

1. Pots of Luck

Free play for anyone who signs up, Pots of Luck is the go-to Rainbow Riches slots site for demo content. Its range of Irish games, Irish-theme and leprechaun loving logo make this casino the perfect hunting ground for pots of gold. Grace Media Ltd now operates the platform and is part of the ActiveWin Media family, meaning a UK license, trusted partners, and fresh new content come with the package.

Pots of Luck Casino was launched in 2016, focusing on Irish Slots and marketing Seamus (the casino’s leprechaun) across promotions and bonuses. The site, available on all devices, uses responsive technology to access some of the best Irish games, including Kiss Me Clover, Irish Pot Luck and of course, Rainbow Riches. Playing for real money? There’s also a deposit bonus for up to 300 free spins.

Our Pick: Rainbow Riches Reels of Gold

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2. Slingo

Slingo is a cross between slots and bingo, and Slingo.com is the official Slingo site. But the game of choice here is Slingo Rainbow Riches, the new and improved version that introduces free spins, enhanced graphics and a toadstool bonus to the famous slot. With a maximum win of £193,446 and seven bonus games, Rainbow Riches Slingo delivers a rainbow of rewards.

Slingo arguably boasts the most impressive online slots library of any online casino platform – at 2,863 slot games. In addition to more than 50 Slingo titles and multiple bingo rooms. If you want a unique, one-of-a-kind take on Rainbow Riches, choose the one that combines the best aspects of bingo, slots, and table gameplay.

Our Pick: Slingo Rainbow Riches

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3. Play Casino Games

Play Casino Games is another one of those Rainbow Riches Casino Sites from the ProgressPlay operation. It has a nice minimalist design, HTML5 framework, and high-quality games, making it a great website for playing Rainbow Riches on your mobile phone.

On top of that, it also features free play demos of Rainbow Riches; Rainbow Riches Pick n Mix, Rainbow Riches Cluster Magic, Rainbow Riches Megaways, Rainbow Riches Free Spins and Rainbow Riches Midnight Magic.

Our Pick: Rainbow Riches: Midnight Magic

Up to £1,000 Welcome Package + Free Spins

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4. Swift Casino

SkillOnNet is second to none if you want a sophisticated casino rammed with technology. It might take a few seconds to load, but Swift Casino is excellent when it finally catches up. That said, it’s also the pack leader Rainbow Riches slots site with 13 versions of the game – including Slingo Rainbow Riches.

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5. Bgo Casino

Bgo is a popular UK slots site due to the variety of games it offers. You can play over 1,200 online slots, including 10 Rainbow Riches slots, along with bingo, live dealers, casino and virtual sports. You’ll also get weekly rewards if you play for real money and access to demo games and free play.

You can access the site through your desktop, mobile or laptop. It’s also incredibly easy to use. But Bgo is also home to Bgo slots tournaments, promotions, and the excellent UK welcome bonus – spinning the Mega Wheel for up to 500 free spins.

Our Pick: Rainbow Riches Freespins

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6. Spin and Win

Spin and Win offers the complete range of Rainbow Riches slots, including Cluster Magic, Freespins, Home and Sweet Home and Megaways versions. And with free play across the range, it’s the best casino for trying out these classic games.

If Slingo is more your thing, Spin and Win membership provides access to 27 Slingo titles, including Rainbow Riches Slingo, Starburst Slingo, Book of Slingo and Slingo Carnival. There’s also loyalty points, faster withdrawals and regular new slots if you play at this top site from Daub Alderney Ltd.

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7. Karamba

Karamba is a casino site where you can play various online slots and jackpots, including Rainbow Riches Megaways. That’s Rainbow Riches with 117,649 paylines! There’s also Rainbow Riches Home Sweet Home and Rainbow Riches Pick n Mix.

Karamba offers reliable instant play across all devices and lists hundreds of new games from the leading developers. If you’re looking for the latest features, bonuses and ways to win, you’re sure to find them here. The site also features a substantial-high-quality live casino room.

Our Pick: Rainbow Riches Pick n Mix

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8. Grosvenor Casinos

Grosvenor Casinos is another great place to play free slots online. Their constant flow of new games means they have lots of slots being added all the time. It’s also one of the most reputable UK casinos with Rainbow Riches, serving customers for 50 years across 53 UK-based gaming venues. There are dozens of game categories, Megaways slots and originals – titles you won’t find at all sites. But it’s the demo play that puts Grosvenor on the map.

Featuring seven Rainbow Riches slots, including Rainbow Riches Raceday and Rainbow Riches Reels of Gold, Grosvenor is one of the few slot sites to offer free play across the Irish-themed games franchise. Just sign up, log in and select demo play, and you’ll be spinning the reels in no time.

Our Pick: Rainbow Riches Raceday

DEPOSIT £20 – PLAY WITH £50

View offer at Grosvenor Casinos

9. Scorching Slots

From Grace Media Ltd is this on-fire online casino that collates all the hottest games in one place. Pardon the puns, but Scorching Slots does precisely what it sets out to do. Some recently added new slots include Lucky O’ Mega and Dwarven Gems Megaways. It’s also home to 10 Rainbow Riches online slots, including Rainbow Riches Fortune Favours and Rainbow Riches Pick N Mix.

In addition to this, Scorching Slots has a Megaways games library and a super sleek interface, meaning you can find the best jackpots quickly. In terms of promotions, real money players can enjoy a match bonus, win boosts, bonus spins and cash prizes – making the site a competitive option for most.

Our Pick: Rainbow Riches Leprechauns

Up to £500 Welcome Bonus + 150 Spins

View offer at Scorching Slots

10. Griffon Casino

Griffon Casino enters the list with three Rainbow Riches games; Rainbow Riches Megaways, Rainbow Riches Home Sweet Home and Rainbow Riches Pick N Mix. Ok, so you can’t play the original title, but you’ll be awestruck by Griffon’s alternative extras. We initially chose this site for the popular games line-up, but the new slots section is equally impressive.

If you like Aspire Global Casinos, and by that, we mean instant-play, fast and ultra-special – Griffon raises the bar on those fronts. Griffon’s feature games are also a strong selling point, showcasing some of the industries best content right now. Oh, and did we mention Rainbow Riches Home Sweet Home? We did, but it’s one of the few casinos here to offer the game.

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