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The UK’s Biggest Online Casinos

By Guy Evans on

TopRatedCasinos.co.uk is dedicated to helping customers find the best place to play online. Your safety and well-being is a priority, which is why all of our expert casino reviews are 100% honest and unbiased, and we highlight the key terms and conditions of every casino bonus we advertise. Whilst we accept commission from the casinos on our list of recommendations, and this may affect where they’re positioned on our lists, we only recommend casinos that we truly believe are safe and fair. Of course, we can’t rate and review every casino site, but we do make sure that only the best UK-licensed casinos make it onto our lists.

TopRatedCasinos.co.uk is dedicated to helping customers find the best place to play online. Your safety and well-being is a priority, which is why all of our expert casino reviews are 100% honest and unbiased, and we highlight the key terms and conditions of every casino bonus we advertise. Whilst we accept commission from the casinos on our list of recommendations, and this may affect where they’re positioned on our lists, we only recommend casinos that we truly believe are safe and fair. Of course, we can’t rate and review every casino site, but we do make sure that only the best UK-licensed casinos make it onto our lists.

It doesn’t necessarily follow that biggest equals best, but simply put: sometimes bigger is better. For many players, this is the case at the UK’s biggest online casinos, which offer their customers a range of gambling perks.

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We’ve broken down everything you need to know about the largest casino sites in the UK, and why you should consider playing at one. Our unbiased reviews and rankings make it easy for you to compare the best sites and their welcome bonuses to find a site you’ll love.

Rank Online Casino Casino Rating Sign-up Bonus Score Key Features Sign Up Terms & Conditions
1
1076 User Ratings
Expert Review

100% Up To £150 + 15 Free Spins

9.9
  • Over 1300 Slots And Casino Games
  • Brilliant Live Casino
  • Great VIP Section
100% welcome bonus worth up to £150 is only valid for new players who have registered but have not made any deposit. The value of the bonus has a play through of 35 which must be met to validate any winnings deriving from it. The offer is valid for all payment methods available in Novibet, apart from Neteller and Skrill. 18+ Please Gamble Responsibly. Click 'Claim Bonus' to view the full terms and conditions.
2
323 User Ratings
Expert Review

100% Up To £100 + 300 Free Spins

9.7
  • Great VIP Section
  • Rapid Deposits & Withdrawals
  • Generous Amount of Free Spins
18+ Full T&C's Apply. New players Only. £10 min deposit. £5 max bet using bonus. 40x wagering applies. Bonus valid for 14 days. 30 Spins will be credited instantly upon qualifying deposit + then 30 per day for 9 days on pre-selected games. Free Spins valid for 72 hours from credit. Max Free Spins winnings £100. Ewallets excluded. - www.begambleaware.org. 18+ Please Gamble Responsibly. Click 'Claim Bonus' to view the full terms and conditions.
3
149 User Ratings

Up To £50 Bonus + 100 Free Spins

9.6
  • Brilliant Live Casino
  • Instant Withdrawals Available
  • Live Chat Support
Terms and Conditions Apply. New Players only. 18+. Min First Deposit £10. Min Second and Third deposit: 20. Wagering requirement apply 35x. Offer valid for 72hr. Spins expire after 24hr. 100 spins includes 3 deposits. 18+ Please Gamble Responsibly. Click 'Claim Bonus' to view the full terms and conditions.
4
814 User Ratings
Expert Review

100% Up To £50 + 50 Bonus Spins

9.6
  • Great Loyalty Scheme
  • Engaging Platform & Design
  • 7 Figure Jackpots
New players only. 100% bonus on first deposit up to £50 & 50 Bonus Spins (30 spins on day 1, 10 on day 2, 10 on day 3) for Rich Wilde and the Book of Dead slot only. Min first deposit of £20. Max bonus £50. Max bonus bet £5. Max bonus cash-out £250. 40x wagering requirements. Bonus expiry 30 days. Bonus spins expiry 2 days. Game restrictions apply. 18+ Please Gamble Responsibly. Click 'Claim Bonus' to view the full terms and conditions.
5
712 User Ratings
Expert Review

100% up to £100 + 10% Cashback

9.5
  • State Of The Art Platform
  • Very Fast Site
  • No Registration Needed
New customers only. Min deposit £10. Wagering 40x bonus. Max bet £5 with bonus funds. 100% bonus up to £100. Eligibility is restricted for suspected abuse. No max cash out on deposit offers. Welcome bonus excluded for players depositing with Skrill or Neteller. Full T&Cs apply 18+ Please Gamble Responsibly. Click 'Claim Bonus' to view the full terms and conditions.
6
742 User Ratings
Expert Review

100% Up To £100 + 100 Bonus Spins

9.4
  • 2,000+ Casino Games
  • Great Welcome Bonus
  • Massive Progressive Jackpots
Minimum deposit of £10. Max bonus bet £5. 100% match bonus up to £100 and 100 bonus spins. Bonus spins are valid on the following game(s) only: Aloha! Cluster Pays. Bonus spins to be credited at a rate of 20 bonus spins per day over five days, triggered on your first deposit. Bonus spins winnings credited in the form of bonus funds and capped at £50. Bonus funds must be used within 30 days and bonus spins within 10 days. 35x wagering on the value of the bonus funds 18+ Please Gamble Responsibly. Click 'Claim Bonus' to view the full terms and conditions.
7
218 User Ratings
Expert Review

Up To £200 + 100 Spins

9.3
  • Perfect for VIP Players
  • Excellent Live Casino
  • Great Game Selection
New players only. 18+. Min deposit £10. Wagering requirement apply 35x. Offer valid for 72hr. 100 spins includes 3 deposit. 18+ Please Gamble Responsibly. Click 'Claim Bonus' to view the full terms and conditions.
8
204 User Ratings
Expert Review

100% Up To £100 + 100 Free Spins

9.3
  • Unique Casino and Bonus Reward System
  • Full PayPal Support
  • Generous Free Spins
New players only. Minimum deposit: £20. Maximum £100 bonus. Max bet with an active bonus: £2. Wagering requirement 100% match bonus: 30x sum of deposit + bonus. Free Spins are given 20 per day on Book of Dead for 5 days in a row, log in is required. Winnings from Free Spins are credited as bonus money with a wagering requirement of 45x. Some games may not be played with a bonus. Games may contribute differently when wagering a bonus. www.begambleaware.org. 18+ Please Gamble Responsibly. Click 'Claim Bonus' to view the full terms and conditions.
9
1632 User Ratings
Expert Review

100% Up To £100 +10% Cashback

9.2
  • Excellent Live Casino
  • Perfect for Both High and Low Limit Games
  • 400+ Casino Games
#AD New customers only, min deposit £20, wagering 35x, 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. Click here for full T&Cs 18+ Please Gamble Responsibly. Click 'Claim Bonus' to view the full terms and conditions.
10
213 User Ratings
Expert Review

Up To £200 + 100 Spins

9.1
  • Great Range of Slots
  • Live Dealer Available
  • Excellent Customer Support
New depositing players only. Min. deposit £20. Welcome package includes 3 deposit bonuses. After first deposit made, customers will get + 20 Spin for the next 4 days. 35x wagering applies. 18+ Please Gamble Responsibly. Click 'Claim Bonus' to view the full terms and conditions.

The Biggest Online Casinos in the UK

The UK’s largest online casinos have established themselves in an incredibly competitive market. Gaining a reputation over other sites displays a longstanding commitment to customers, as well as the ability to move with the times and adapt to changing gambling habits. Sites such as 888, 32Red, and PaddyPower can all be categorised among the biggest and best online casinos in the UK, and all of them offer their members an outstanding all-round service.

The UK’s Biggest Online Casinos

Launched: Nov, 2014
Novibet

100% Up To £150 + 15 Free Spins

1076 User Ratings
Read Review Go to site
100% welcome bonus worth up to £150 is only valid for new players who have registered but have not made any deposit. The value of the bonus has a play through of 35 which must be met to validate any winnings deriving from it. The offer is valid for all payment methods available in Novibet, apart from Neteller and Skrill.
Launched: Oct, 2020
Kassu

100% Up To £100 + 300 Free Spins

323 User Ratings
Read Review Go to site
18+ Full T&C's Apply. New players Only. £10 min deposit. £5 max bet using bonus. 40x wagering applies. Bonus valid for 14 days. 30 Spins will be credited instantly upon qualifying deposit + then 30 per day for 9 days on pre-selected games. Free Spins valid for 72 hours from credit. Max Free Spins winnings £100. Ewallets excluded. - www.begambleaware.org.
Launched:
Spin Rio

Up To £50 Bonus + 100 Free Spins

149 User Ratings
Go to site
Terms and Conditions Apply. New Players only. 18+. Min First Deposit £10. Min Second and Third deposit: 20. Wagering requirement apply 35x. Offer valid for 72hr. Spins expire after 24hr. 100 spins includes 3 deposits.
Launched: Nov, 2014
Casushi Casino

100% Up To £50 + 50 Bonus Spins

814 User Ratings
Read Review Go to site
New players only. 100% bonus on first deposit up to £50 & 50 Bonus Spins (30 spins on day 1, 10 on day 2, 10 on day 3) for Rich Wilde and the Book of Dead slot only. Min first deposit of £20. Max bonus £50. Max bonus bet £5. Max bonus cash-out £250. 40x wagering requirements. Bonus expiry 30 days. Bonus spins expiry 2 days. Game restrictions apply.
Launched: 2020
Race Casino

100% up to £100 + 10% Cashback

712 User Ratings
Read Review Go to site
New customers only. Min deposit £10. Wagering 40x bonus. Max bet £5 with bonus funds. 100% bonus up to £100. Eligibility is restricted for suspected abuse. No max cash out on deposit offers. Welcome bonus excluded for players depositing with Skrill or Neteller. Full T&Cs apply
Launched: Oct, 2018
Slotnite

100% Up To £100 + 100 Bonus Spins

742 User Ratings
Read Review Go to site
Minimum deposit of £10. Max bonus bet £5. 100% match bonus up to £100 and 100 bonus spins. Bonus spins are valid on the following game(s) only: Aloha! Cluster Pays. Bonus spins to be credited at a rate of 20 bonus spins per day over five days, triggered on your first deposit. Bonus spins winnings credited in the form of bonus funds and capped at £50. Bonus funds must be used within 30 days and bonus spins within 10 days. 35x wagering on the value of the bonus funds
Launched: Nov, 2014
Queenplay

Up To £200 + 100 Spins

218 User Ratings
Read Review Go to site
New players only. 18+. Min deposit £10. Wagering requirement apply 35x. Offer valid for 72hr. 100 spins includes 3 deposit.
Launched: Sep, 2017
Duelz Casino

100% Up To £100 + 100 Free Spins

204 User Ratings
Read Review Go to site
New players only. Minimum deposit: £20. Maximum £100 bonus. Max bet with an active bonus: £2. Wagering requirement 100% match bonus: 30x sum of deposit + bonus. Free Spins are given 20 per day on Book of Dead for 5 days in a row, log in is required. Winnings from Free Spins are credited as bonus money with a wagering requirement of 45x. Some games may not be played with a bonus. Games may contribute differently when wagering a bonus. www.begambleaware.org.
Launched: 2013
All British Casino

100% Up To £100 +10% Cashback

1632 User Ratings
Read Review Go to site
#AD New customers only, min deposit £20, wagering 35x, 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. Click here for full T&Cs
Launched: Jun, 2020
Regent Play

Up To £200 + 100 Spins

213 User Ratings
Read Review Go to site
New depositing players only. Min. deposit £20. Welcome package includes 3 deposit bonuses. After first deposit made, customers will get + 20 Spin for the next 4 days. 35x wagering applies.

What Sets the Biggest Sites Apart?

There are a multitude of reasons as to why playing at one of the biggest online casinos is worth your while. How these factors are ranked in terms of importance will depend on the gambling preferences of the individual, but excelling in all of the areas below is often what sets the biggest sites apart from the rest of the field.

You’ll notice that one area we haven’t listed here is bonuses. This is because often, smaller, newer online casinos pull out all the stops to offer their customers outstanding bonus deals – a tactic that’s seen as their best opportunity to outmuscle the more established competition and attract as many new players as possible. So while the biggest sites offer an awful lot, this doesn’t mean there isn’t something worth pursuing at a smaller or newer online casino.

Range of Games

You don’t become one of the UK’s biggest casinos without a suitably impressive games library. This doesn’t just mean ticking all the boxes in terms of games categories – such as slots, table games, live dealer experiences, bingo, and scratch card games – it also means offering significant depth within these categories.

For example, the best online casinos will be able to break their collection of slots down in a variety of different factors. This includes being able to arrange these games by theme, variance, and style, as well as by their mechanics, such as progressive jackpot and Megaways titles.

In their table games portfolio, the biggest casino sites will also offer great depth by way of game variations. If you’re heading to the roulette wheel at a top casino, you’ll want to see the latest innovations alongside standard European, French, and American variants, all available to play in both a random number generator (RNG) and live dealer context.

Mobile Capabilities

At the risk of sounding redundant, big casino sites are wealthier than small ones. This means they have more resources at their disposal to keep up with modern gambling trends. Although mobile gameplay can hardly be thought of as a new concept, the ability of larger sites to excel in this area is of significant benefit to their players.

All online casinos – no matter how big or small – will make efforts to optimise their site for the mobile screen. But the casinos at the top of the food chain will go beyond this, developing their own bespoke apps for members to download. These apps almost always offer a superior gambling experience to betting in the web browser, with faster loading times and quicker access to bonuses and promotions.

Casinos and Sportsbooks

When betting sites reach a certain size, they’re able to offer their members the two main verticals of online gambling: casinos and sportsbooks. Marrying these two betting options under one account allows gamblers to switch between the two with minimal fuss, dabbling in a hand of poker in one moment and placing a bet on the football in another.

Payment Options

This isn’t always a given, but larger online casinos tend to give their customers more options at the cashier page in comparison to smaller sites. Offering a decent range of payment options for both deposits and withdrawals is beneficial in two ways: one, it offers gamblers convenience when they come to pay for their bet; and two, it opens the casino up to the possibility of executing fast withdrawals. The best online casinos in this category will include bank transfers, e-wallets, prepaid cards, and pay by phone services on their payment method menus.

Customer Service

Things can occasionally go wrong at a betting site, whether it’s a problem with a withdrawal or a member struggling to gain access to their account. In these moments, players need to know they can rely on decent customer service to resolve the issue as soon as possible. The UK’s biggest casinos are able to allocate more resources to ensuring their customer services are smooth, responsive, and helpful, which goes a long way to enhancing their reputation. The best sites in this area will make use of a range of communication channels 24/7, 365 days a year.

The Biggest Casino Bonuses

Here are some of the bonus types you can expect to come across at the biggest online casinos. These will be offered both as part of a welcome bonus and throughout your time at the casino. Before taking advantage of any casino bonuses, remember that terms and conditions will apply.

Matched Deposits

Matched deposit bonuses will see the casino match a portion of your deposit up to a certain limit. If matched deposits are included as part of a welcome bonus, these offers can be as large as 100% up to £200, which would land the recipient £400 in their account from a £200 deposit. Some sites offer considerably more, going as high as 300% and even 400% matched deposit bonuses, although the wagering requirements are sure to be extremely restrictive with such offers.

Free Spins

Free spins are to be used on the casino’s collection of slot titles, with players being given a bundle of extra spins on the reels. Free spins bonuses are usually contingent on a minimum deposit of some kind, such as an offer of 20 free spins when depositing £10.

No Deposit Bonuses

Like the sound of receiving a cash injection without staking any of your own funds? Well that’s exactly what happens with a no deposit bonus. Compared to matched deposits, these offers tend to be significantly smaller, but are no less valuable as a result.

Payment Options at the Biggest Online Casinos

We’ve touched on payment options briefly above, but let’s go into this in more detail. Below is a breakdown of the most popular banking options at the biggest online casinos – in all the examples, withdrawal times are given from the moment the request has been processed to the time it takes for money to appear in the designated account. An online casino’s processing checks can take anywhere up to 72 business hours.

Debit Cards

Deposit speed: Instant

Withdrawal speed: Slow, within 2-5 working days

No matter their size, almost all UK online casinos accept debit card payments. While this accessibility is handy, it comes at a price: debit card withdrawals are among the slowest of any payment method at casino sites, taking anywhere between two and five working days.

e-Wallets

Deposit speed: Instant

Withdrawal speed: Instant

If debit cards are among the slowest, then e-wallets are the opposite. Not only are deposits incredibly quick – authorised simply through linked account information, such as usernames and passwords – but payouts can be completed in an instant at fast withdrawal casinos. PayPal, Skrill, Neteller, ecoPayz, and MuchBetter are the leading brands offering e-wallet services at the UK’s biggest casinos.

Prepaid Cards

Deposit speed: Instant

Withdrawal speed: N/A

Given that only preloaded funds can be spent with a prepaid card, this is a popular option for many online gamblers due to its inherent money management facilities. Prepaid card users purchase vouchers either in store or online before using the funds to make casino deposits via a unique PIN. Even at the biggest sites, however, there are very limited opportunities to request withdrawals with prepaid card payments.

Pay by Phone Bill

Deposit speed: Instant

Withdrawal speed: N/A

Many of the UK’s leading mobile network providers now support pay by phone bill transactions at online casinos. Here’s how it works: you select pay by phone at the cashier page, enter your mobile number and the amount you’d like to deposit, and your network provider will pay for it before charging the bill to your monthly account. This option is incredibly quick and easy, but users aren’t able to make a withdrawal with this method and there are tight deposit limits.

Trustly

Deposit speed: Instant

Withdrawal speed: Instant

There are similarities between Trustly and e-wallet payments, both of which offer lightning-quick deposits and withdrawals. Trustly payments are, however, directly linked to a bank account – not all UK banks support Trustly, which is one potential drawback to bear in mind. The service doesn’t require you to set up an account, and this extremely secure method doesn’t hold on to your details once the transaction is complete.

Ready to Join One of the Biggest Online Casinos in the UK?

If you’re taken with what’s on offer at the UK’s biggest casino sites, then take a look at our recommendations for the best in the business. There’s a lot to consider before committing to an online casino – particularly at the biggest sites – so read our reviews, compare welcome bonus deals, and click through to sign up to a site you like.

Frequently Asked Questions

Contributors

Guy is a writer for TopRatedCasinos with a keen interest and expertise in the online gambling space. He’s also an avid fan of football and cricket, often found lamenting the fortunes of his beloved Tottenham Hotspur.

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