Welcome to BestRatedSlotSites.co.uk, your go-to source for unbiased, 100% accurate information to all the best online casino sites focused on the UK market. By using our extensive and in-depth reviews on casino sites, gaming reviews, how-to guides, and other focused content, you will always be able to discover the best online casinos, games, bonuses, payment options and more. Whether you love to play at home, at work, or on the go with your mobile device, you will always be sure to find what you need to play with absolute confidence.

Top 10 Best Online Casinos

  • Expert Reviews
  • UK Licensed
  • Fast Payouts
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Karamba Casino


£50 + 20 Free Spins

Terms Apply

The Sun Vegas Casino


£300 Bonus

Terms Apply

MrQ Casino


10 Free Spins

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Casino Gods


300 Free Spins

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Mr.Play Casino


£200 Bonus
100 free spins

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Regent Casino



Terms Apply

Winning Room Casino


£100 Bonus

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Play UK Casino


£850 Bonus
+ 25 Free Spins!

Terms Apply

New Customers only, First 3 deposits only, Min deposit £10. Max bonus £500 + 50 Spins on Starburst. Selected Slots Only, 4x conversion 30x wagering, T's & C's apply.

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Redbet Casino



Terms Apply



£1200 Bonus
+ 100 Free Spins!

Terms Apply

The welcome offer is split into 3 deposit bonuses. Deposit 1, 100% up to £500 + 50 spins. Deposit 2, 50% up to £200. Deposit 3, 125% up to £500 + 50 spins. Enjoy up to £1200 welcome package plus 100 spins

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Recommended Best Casino Sites UK

£850 Bonus + 25 Free Spins!
  • Great for Progressive Gambling
  • Mobile Gaming for Android and iOS
  • PayPal Enabled Casino

Terms Apply

New Customers only, First 3 deposits only, Min deposit £10. Max bonus £500 + 50 Spins on Starburst. Selected Slots Only, 4x conversion 30x wagering, T's & C's apply.

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£1200 Bonus + 100 Free Spins!
  • Remarkable customer service with 24/7 live chat
  • SSL encryption
  • Generous welcome bonus of up to £1200 + 100 free spins

Terms Apply

The welcome offer is split into 3 deposit bonuses. Deposit 1, 100% up to £500 + 50 spins. Deposit 2, 50% up to £200. Deposit 3, 125% up to £500 + 50 spins. Enjoy up to £1200 welcome package plus 100 spins

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£300 Bonus + 20 Free Spins!
  • Numerous and unique slots offered
  • A reported 97.27%-win rate for players
  • Lavish welcome bonus

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18+. New customers only. 30x wagering requirements apply for bonuses and winnings. - Full Terms Apply

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£200 Bonus + 10 Free Spins!
  • Over 500 slots titles.
  • Lavish welcome bonus of £300 plus 20 free Vegas spins.
  • Mobile casino with over 200 slots.

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New players, £10+ deposit required, no e-wallets/prepaid cards, 30x Playthrough, on Bonus and 50x on Free Spins winnings. T&Cs Apply

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£400 Bonus + 50 Free Spins!
  • Free phone line available for UK gamers
  • Enticing welcome bonus
  • Massive selection of slots

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Valid until 31.12.2018. New players only. 1st deposit min £20 with code, gets 100% Bonus (max £400) + 50 FS on Kingdom of Cash. FS deposit wins are set at min £1 -max £13. Bonus wins are capped at £400, exc. jp win. To withdraw games bonus & related wins, wager 30x the bonus funds. Wagering reqs vary by game. Withdrawal restrictions & full T&C apply.

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£200 Bonus + Free Spins!
  • Fantastic selection of slot games available for mobile and desktop platforms
  • 24/7 customer support convenience
  • Nicely themed

Terms Apply

Opt-in Required. Wagering occurs from real balance first. 50x wagering the bonus or any winnings generated from free spins, contribution may vary per game. The wagering requirement is calculated on bonus bets only. Bonus is valid for 30 Days/ free spins valid for 7 days from issue. Max conversion: 5 times the bonus amount or from free spins: $/£/€ 20 or 200 kr. Full Terms apply.

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£200 Bonus
  • 888 Casino Android/ iOS Mobile App
  • High RTP Portfolio
  • VIP Benefits for Loyal Punters

Terms Apply

1. Currencies: 888casino offers play in one of the three following currencies in accordance with the member's personal preference: US Dollars, GBP, Canadian Dollars or Euros. Whenever a currency is mentioned (in connection with bonuses, deposit eligibility, bets, JP, etc) it will be calculated in US Dollars and converted to other currencies according to suitable methods determined by 888casino.

2. Payments:
- Bonuses (Welcome Bonus and others) and any winnings derived from a bonus may be withdrawn only after an amount totalling no less than 30 (thirty) times the initial bonus amount received has been wagered, unless otherwise stated (40 (forty) times if the bonus amount if received by funds deposited by NETeller, (except for players from Japan where the wagering for the bonus is 20 (twenty) times the bonus for first time deposits made via NETeller). For example, to withdraw each bonus of $10 and any related winnings, a member needs to wager $300 and the entire bonus criteria must be fulfilled.

- Wagering on all games at 888casino contributes towards the wagering requirement but certain games contribute greater amounts than others. The following is a list of contributions towards wagering requirements for each individual game type.

Wagering Contributions:
Video Slots & Slots, Scratch card, Keno, Race, Arcade, Dice and all other games that do not appear in the table: 100%

All versions of Roulette, Pai Gow Poker, Caribbean Poker, Triple Card Poker & Poker table games: 20%
All versions of Blackjack, Live Casino games, Hi-Lo, VideoPoker, Power Video Poker, Baccarat: 10%

Craps: 5%
- Any winnings made under the bonus, may be withdrawn only after the wagering requirement has been fulfilled. If you wish to remove the Welcome Bonus and winnings in order to withdraw your initial deposit please contact our Member Support Department.

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£200 Bonus
  • Huge and reputable brand since 1988
  • Available in PC, mobile, and download
  • Very prompt withdrawal rates

Terms Apply

UK & IRL only. Deposits made with e-wallets are not valid for this promo. Bonus wagering x50 on eligible games. Game weighting apply. Min deposit €20. Golden chips available after bonus is redeemed/lost and worth €1 each. Full T&Cs apply. - Full Terms Apply

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£1200 Bonus + 100 Free Spins!
  • Massive selection of slots from leading developers
  • Fresh and modern site design
  • Awesome 3-tier welcome deposit

Terms Apply

Register at Dunder casino today and receive up to $/€/£ 600 + 200 free spins welcome bonus on your first 4 deposits. Get 200 free spins + 100% match bonus up to €50 on your first deposit. Second deposit 50% up to €100. Third deposit 25% up to €150. Fourth deposit 25% up to €300.

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£300 Bonus + 5 Daily Free Spins!
  • Highly trusted and experienced UK betting brand
  • Great mobile optimisation
  • Over 200 slots from multiple providers

Terms Apply

*Opt in required. Available 1x per customer. First deposit only. Minimum £10 deposit. Maximum £300 bonus. 40x wagering. Bonus expires 7 days from issue. New customers to casino page only. Player, currency, country, game restrictions & terms apply.

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£100 Bonus + 200 Free Spins!
  • Huge selection of slots games from different developers
  • Modern and stylish design
  • Privacy protection via SSL encryption

Terms Apply

New players only. 18+. 35x wagering applies to Bonus Cash and Free Spins. Deposit of £20+ unlocks a 100% Match Bonus up to £100 in Bonus Cash, subsequent wager of £20+ on slots unlocks 100 Free Spins and 20 Free Spins per day over 5 days on selected games. BeGambleAware.org - Full Terms Apply

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£200 Bonus + 20 Free Spins!
  • Great selection of slots
  • Generous welcome bonus for new players
  • SSL encrypted

Terms Apply

Opt-in Required. Wagering occurs from real balance first. 50x wagering the bonus or any winnings generated from free spins, contribution may vary per game. The wagering requirement is calculated on bonus bets only. Bonus is valid for 30 Days/ free spins valid for 7 days from issue. Max conversion: 5 times the bonus amount or from free spins: $/£/€ 20 or 200 kr. Full Terms apply.

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£500 Bonus + 50 Free Spins!
  • Features an astounding number of slot titles
  • Convenient instant-play format
  • Huge list of first-rate game developers

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New Customers only, First 3 deposits only, Min deposit £10, Max bonus £500 + 50 Spins on Starburst, Selected Slots only, 4x conversion, 30x wagering, T's&C's apply.

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£200 Bonus + 100 Free Spins!
  • A healthy selection of slot titles including several lucrative jackpots
  • Generous welcome bonus
  • Fully licensed in the UK

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Opt-in Required. New Players Only. Wagering occurs from real balance first. 50x wagering the bonus or any winnings generated from free spins. Contribution may vary per game. The wagering requirement is calculated on bonus bets only. Bonus is valid for 30 days / Free spins valid for 7 days from issue. Max conversion: 5 times the bonus amount or from free spins: $/£/€ 20 or 200 kr. Full Terms Apply.

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£200 Bonus
  • Well-rounded collection of slots from various developers
  • 24/7 toll-free phone support available for UK players
  • Secured with SSL encryption technology

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The Welcome Bonus consists of a FreePlay bonus of 100% of your first deposit, up to $/€/£200 or 2000 SEK (depending on your chosen account currency). For example, if you deposit $200 as your first deposit, you will receive a bonus of $200 in FreePlay In order to receive the Welcome Bonus, you must make a single first time deposit with the promotion code: WELCOME777.

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Here’s Why We Should be Your Go-To Casino Resource:

While there may be quite a few sites online that claim to help you find the best casinos, we all know that this is seldom true. Most of these online sites are in fact paid-for advertising sites for online casinos. What they really do is direct you to an online casino and make you think that you are getting the best advice and the best deal possible.

This is why BestRatedSlotSites.co.uk really stands out from the crowd, because we are dedicated to finding the best online casinos for the UK market. We are not sponsored by anyone, and actually use our own money to open accounts, test games and payment options, along with all the other essential audits that go into putting together a truly comprehensive casino review.

We Feature Only Trusted & Licensed Online Casinos

There are thousands of online casinos operating on the web right now, and many of them are not licensed or legitimate sites. They look like great online casinos, but once you’ve opened an account with them and deposited your money, you’ll never see it again!

This is why every online casino that we list in our recommended listings for UK players, features legitimate and trusted licensing through recognised industry regulators such as the UK Gambling Commission, the Malta Gaming Authority, the Gibraltar Gambling Commission, and a number of others.

You Get Expert, Informative Reviews

Our in-depth and highly informative reviews are put together by our team of dedicated experts. This is what we do for a living, and spend many hours thoroughly reviewing each online casino that we think has potential. Our small team are all highly experienced in both the online and brick and mortar casino industry, so we know exactly what it takes to be a great UK online casino.

Our reviews are well-written and structured in such a way as to make it as quick and as easy as possible to get the information you need, right now. The information that you really need is right up front so that, even if you don’t feel like reading the deep dive review, you still get all the info you need to make a great choice – every time.

Learn About Bonuses, Games, Payments and More

Online casinos can be quite daunting, especially if you happen to be new to scene. There is a lot to learn and a lot to take in. This is especially true when it comes to accepting bonus offers from online casinos, with the biggest offers often being the ones designed to get you to sign up with the casino. Our expert guides will teach you how to look for the best bonuses, how to understand bonus terms and conditions, wagering requirements, and how to choose the best bonus for your specific needs.

In much the same way, our game reviews and guides are designed to find the games that you will enjoy the most. We review the latest slots that have just launched, as well as older slots that everyone loves to play. Learn to master the most iconic casino games with our in-depth and easy to follow game guides and strategy pages, and find out how you can always get most out of every online casino gaming session.

What You Can Expect from a Best Online Casino UK

The UK is one of the fastest growing online casino markets in the world, and our best casinos offer all sorts of fantastic and highly entertaining features and innovations. Our recommended lists of UK best casino sites include all sorts of themes and styles to suit all tastes. From the traditional online casinos inspired by the bright lights of Las Vegas, to the ultra-modern casinos inspired by social media and online gaming.

While reading through our reviews and articles, you may come across a term known as ‘gamification’. This refers to a new innovation in online casino gaming in the UK, where some of our best casino sites like Kaboo Casino, Rizk Casino and Ikibu Casino, offer a new way of experiencing online gambling. While you still get to enjoy a great range of the best online slots and casino games, you can enhance you experience and bankroll by participating in all sorts of missions, quests and tasks, similar to how video games work. You can also participate in tournaments and slot races and climb score boards to claim all sorts of valuable prizes.

In addition to enhanced gaming, you can expect the best casino sites in the UK to feature innovative incentives and rewards. This includes fantastic multi-tiered VIP rewards programs and loyalty schemes, designed to enhance your experience and reward you for playing at our recommended UK online casinos. In fact, some of our top online casinos will even offer bonuses with no wagering requirements from time to time.

The best UK casino sites are known for their super-fast banking options, which feature instant deposits and lightning quick payouts, all under the latest, state of the art digital (SSL) secure encryption technology. Finally, top online casinos will include responsible gambling practices which includes self-monitoring to prevent possible gambling additions, as well as links to resources such as Begamble aware and others.

Game Suppliers at Our Best Casino Sites

When the online casino industry first began in the mid-nineties, there were just three main software providers powering these fledgling online casinos – Microgaming, Playtech and Net Entertainment. Today there are dozens of incredibly innovative and dynamic software brands supplying our best casino sites with thousands of games. In fact, it is not uncommon to find top casino sites on our recommended lists sporting as many as 1,500 different casino games or more.

The best UK casino sites will usually feature a wide range of games, with the lion’s share dedicated to online slots. The rest of the casino will be divided into table games, both virtual and live dealer, along with progressive jackpots, poker, bingo, keno and other games, depending on the nature of the casino.

In order to offer the widest range and the highest quality, we select online casinos that partner with the best game suppliers. This includes first generation online casino software brands like Microgaming, Playtech, who are still at the forefront of the industry, as well as the wave of Scandinavian suppliers such as NetEnt, Quickspin, Yggdrasil, Elk Studios and others. Many of these game suppliers are well-known for their incredible 3D animated slots and intensive graphics and sounds.

You’ll also find plenty to love with games from innovative young brands like Red Tiger Gaming and Big Time Gaming. Fans of live dealer casino games, including live roulette and blackjack will find all they need and more at our top Evolution Gaming, Playtech Live and Authentic Gaming casinos. You’ll even find a few cross-over slots, hot off the casino floors of top brick and mortar casinos from around the world, thanks to specialists like IGT and Scientific Games.

Best Online Casino Bonuses Explained

The best casinos will usually feature a range of bonus types, all designed for a specific purpose. For example, welcome bonuses are designed to boost your bankroll when you first start out with a casino, while free spins bonuses could be a reward for your loyalty or to promote a new slot. Let’s take a closer look at the most common bonus types.

No Deposit Bonus

The no deposit bonus is very popular in the UK and allows you to try out a casino with some free money and no risk. To get a no deposit bonus, all you need to do is register your details with the casino. They will then add the bonus to your account and you can try out a few games, basically for free. However, you should note that most no deposit bonuses will come with wagering requirements.

Deposit Match Bonus

A deposit match bonus is simple, and is the basis for most casino bonuses. Deposit match bonuses will match your deposit by a certain percentage. The most common is a 100% match, which effectively doubles your money instantly. However, you’re likely to come across a variety of match percentages from 25%, 50%, 75%, and 100%.

Free Spins Bonus

Free spins bonuses are available in a number of ways, including as a no deposit bonus or as an addition to a welcome bonus package. Free spins bonuses are usually fairly small and can be anywhere from 20 to 100 free spins and are a great way to get to know a few slots for free. However, just like no deposit bonuses, your free spins will more than likely include wagering requirements.

Cash Back Incentives

Cash back incentives give you money back on certain losses and are especially popular with live casino games. You’ll often find cash back incentives when you choose to play over weekends, with your cash back deposited into your account the following week. Cash back incentives work on a percentage basis such as 10% on your losses.

Welcome Bonus Package

The welcome bonus package is probably the most recognisable of all casino bonus types. This is the bonus that is offered to new players, and is a highly effective way of enticing new players to sign up with a casino. The welcome bonus varies greatly from one casino to another, and can be a once-off bonus on your first deposit, or can be divided over your first three, four or five cash deposits.

Claiming Your Casino Bonus

There are several different ways in which you can go about claiming your casino bonus, which depends on how the casino structures it. With some casinos, once you have successfully registered with the casino and made your qualifying cash deposit, the bonus will automatically be allocated to your account. Other online casinos will include a special bonus code which you will need to include with your deposit in order to opt in for the offer. However, on rare occasion, you may have to contact the casinos customer support in order to trigger the bonus offer.

Wagering Requirements Explained

Most casino bonuses will include wagering requirements, although you will sometimes find casino bonuses that don’t include any. Essentially, wagering requirements simple means that the casino expects you to wager your bonus amount a certain number of times. While the average is around 20x or 25x, some casinos will set their wagering requirements as high as 40x or 50x. You may also come across no deposit bonuses (or free spins) with wagering requirements that can be as high as 100x.

Here’s an example of how wagering requirements work in various online casinos:

Your bonus offer is a 100% up to £100 and comes with wagering requirements of 40x your bonus amount. This means that if you make a deposit of £100, you will receive the maximum bonus amount of £100 (100% match). In this example, you only have to wager your bonus amount, which means that you have to wager your £100 bonus 40x or £4000 before you will be able to withdraw any winnings accrued from your bonus.

It is also worth noting that most bonus offers include an expiration date, which means that you have to take advantage of the offer, usually within 7 days of signing up, and complete your wagering requirements, usually within 30 days of receiving the offer in your account. Different casino games will also contribute a different percentage to your wagering requirement completion. Knowing what these are can be a great way to clear your wagering requirements much faster.

An Example of Wagering Contributions Could Be:

  • 100% on all slot games, keno games and scratch card games
  • 8% on all video or power pokers (besides All Aces games and Jacks or Better video pokers), all blackjack games (apart from Classic Blackjack)
  • 2% on Classic Blackjacks, All Aces video pokers, all Jacks or Better video pokers
  • 0% on all baccarat, all craps, Sic Bo and Red Dog games

Of course it is not compulsory to take up an online casino’s bonus offer and, for some players, it may actually be advisable to rather skip the bonus offer altogether and build up your bankroll the slow way. This is especially important if you are not the type of player that has the patience or time to first have to meet wagering requirements in time.

Understanding Withdrawal Limits

Most online casinos, particularly newer ones, will include restrictions or limits on your withdrawals from your casino account. Depending on the online casino, these restrictions can be in the form of a time limit, or in the form of an amount limit. Some online casinos will actually include both in their weekly or monthly limits.

Amount Limit

This limits the amount that you can withdraw in a single transaction such as only letting you withdraw £5,000 in a single transaction.

Time Limit

While some online casinos won’t limit how much you can withdraw in a single transaction, they will limit how many withdrawals you can make within a specific period of time, usually weekly or monthly.


You may find that most online casinos nowadays combine both of these which, for example, could limit your withdrawals to just £5,000 per week or £20,000 per month.

Most casino members don’t really have a problem with any of these because most of us are quite happy making small deposits and withdrawing small wins. However, if you happen to be a high roller, these restrictions could impact you to a greater degree. High rollers typically prefer to make very big deposits, play very high stakes, and withdraw equally large winnings. Most online casinos are however, perfectly happy to negotiate limits on a case by case basis. To get the ball rolling in this regard, simply contact your casinos customer support.

You will also find that some of our recommended UK online casinos actually don’t include restrictions of any kind, and you are free to deposit and withdraw as much as you like, whenever you like.

Understanding Payment Options

The best online casinos that payout, offer a wide variety of payment options designed to suit various needs and preferences. These can range from the more traditional credit and debit card options from the likes of Visa and MasterCard, to more modern, faster options such as eWallets like Neteller, PayPal and Skrill.

For those that prefer to not upload their credit card details or other personal banking information, choosing a method like PaySafeCard is a great idea. PaySafeCard allows you to purchase a voucher of a specific amount from a licensed outlet with cash. You can then upload the voucher to your casino account using a secure 16-digit PIN. A slightly newer payment option that provides the same level of security and anonymity is cryptocurrency such as Bitcoin or Ethereum. This is a purely digital (online) currency and allows you to deposit or withdraw without the need for a credit or debit card, or even a bank account.

Popular Casino Payment Options include:

  • Visa
  • MasterCard
  • Visa Electron
  • Maestro
  • Skrill
  • Neteller
  • PayPal
  • Bank Transfer
  • PaySafeCard
  • Bitcoin
  • Ethereum
  • Boku

Choosing Your Best Online Casino – What to Look Out For


Licensing and regulation is one of the most important features of any good online casino. Our best casino sites will always feature licensing through top gambling regulators such as the UK Gambling Commission and the Malta Gaming Authority. Other top regulators include Alderney, Isle of Man, Gibraltar, and Sweden.


Knowing who the operator of the online casino that you may be interested in joining can be a deciding factor in whether you sign up or not. Some online casino operators will have a number of casinos under their name, such as Fortune Lounge Group, one of the biggest online casino operators in the industry.


Taking a closer look at what games are on offer is always a good idea. While having a large range of games is obviously important, where the games come from is just as important. Check to see if the online casino features games from all of the major suppliers. A well-balanced online casino will usually feature a range of games from the major suppliers as well as some of the newer providers.

Payment Options

Check to see how many payment options are available and if your personal preference is available. We give detailed analysis on top casino payment options, withdrawal times and more.

VIP/Loyalty Rewards

Does the casino offer any added incentives outside of their bonus offers? Will you be rewarded for playing at the casino? VIP or loyalty rewards schemes are a great way to enhance your bankroll and enjoy added VIP benefits.


The quality and range of the best casino bonuses can make all the difference. Is the bonus offer worth your while? Always check the terms and conditions of a bonus offer to see what sorts of wager requirements are demanded.

A Quick Beginners Guide to Choosing a Best Casino Site

  1. Always do as much research as you can into all the different top casinos that are available to you.
  2. Read as many in-depth and non-biased reviews as you can. Find out who the operator is, the number of games available, number of payment options available, quality of bonus offers, security, support and more.
  3. Try to play as many free games (demo games) as you can on the site. This will give you a much clearer indication of the quality of the casino.
  4. Once you’ve narrowed down your choice, consider re-reading the review on the site to make sure you haven’t missed anything.
  5. After rereading the review, simply click on the link to the casino provided with the review.
  6. Click on the sign up button, fill in all of your relevant and required details, choose your payment option and make your qualifying deposit for their bonus offer.
  7. Enjoy playing at your new online casino!


1. What do I need to do to get started with a top online casino?
Start by reading our in-depth reviews to find the best casino online that suits your needs and personality. Check the main features that appeal to you including the welcome bonus offer, range of games and so forth. The fastest way to get to the casino you want is to click on our safe and secure links to apply to become a member of the casino.

2. What sort of games do the best online casinos offer?
Today’s best online casinos often carry well-over 400 games, with many reaching as many as 1,000 or even 1,500. Most of these will usually be dedicated to video slots, although they will always offer a range of other games including virtual table games, live casino games, poker, bingo, keno and more.

3. Can I play for fun or can I only play for real money?
All of the best online casinos will offer most of their games in two varieties: a ‘play for fun’ or ‘demo’ mode, and a play for real money mode.

4. Which software brands should I be on the lookout for?
There are dozens of great internet casino software developers supplying the casino websites today. It’s always a good idea to start with the big names like NetEnt, Microgaming and Playtech. If you love live casino games, Evolution Gaming is a good one to start with. Other interesting software developers including Yggdrasil, Red Tiger, Elk Studios, Quickspin, IGT, and others.

5. Can I play on my mobile device?
Yes, you can. The vast majority of the best casino sites will offer a mobile version of their site. Some online casinos feature apps for iOS and Android devices. However, most online casinos nowadays will use technology that simply adjusts their online casino to suit your mobile device specs. You can then simply log on to the casino from your smartphone or tablet on any operating system.

Charles Baxendale (BSc, MSc Mathematics and Computer Science)

Charles Baxendale

(BSc, MSc Mathematics and Computer Science)

A keen researcher in the development of methods and theories for computer sciences. A lover of algorithms and mathematical computation. Consultant to online slots software companies and a player in my spare time.