Best UK Slot Sites 2021

This expert guide to the best UK slot sites features all of the top licensed casinos in November 2021. At these sites, you can play all of the best slot games. So, whether you are searching for the latest high paying slot game or on the lookout for the latest no deposit slot bonuses, we can assure you that there is something for you on this page.

Our editorial team has thoroughly reviewed all of the slot sites on this page to give you the full picture of everything on offer, including bonus offers, game suppliers, deposit methods and times, and customer support reputation. These sites, which you will find featured on FreebieSlots, cater specifically to slots players. FreebieSlots is now regarded as one of the best resources for online slots in the United Kingdom.

You are in control. Tap the review buttons to find out more, or hit the visit now button to head straight to your chosen casino.

1

100% up to £123 + 10% cashback

4.7 / 5
TOTAL SCORE
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Terms & conditions apply
New players only | 100% up to £123 bonus for 1st deposit | Wagering is x50 max bet is £5 | 10% cashback on all lost deposits | Skrill and Neteller deposits are excluded No max cashouts on deposit offers | £100 max cashout on free spins offer | Eligibility is restricted for suspected abuse. Terms apply. BeGambleAware.org.
2

100% up to £100 + 50 Bonus Spins

5 / 5
TOTAL SCORE
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Terms & conditions apply
New players only. Min deposit of £20 required. Wagering requirement is 35x bonus amount. 100% up to £100 plus 50 bonus spins on 1st deposit. 50% up to £200 + 50 bonus spins on 2nd deposit. 100 bonus spins on 3rd deposit. When playing with bonus funds maximum bet is £5. Welcome bonus is excluded for deposits with Skrill/Neteller. 18+. BeGambleAware.org. See full bonus terms and conditions.
3

Get up to £1300

4.9 / 5
TOTAL SCORE
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Terms & conditions apply
18+. New Players only. One bonus offer per player. Min deposit £10. Max bonus bet £5. Bonus funds must be used within 30 days & bonus spins within 10 days. Spins valid on Starburst only. Offer consists of: 1st dep: 100% up to £300 & 100 spins, 2nd dep: 75% up to £300 & 75 spins, 3rd dep: 50% up to £300 & 50 spins, 4th dep: 25% up to £300 & 25 spins, 5th dep: 100% up to £100. The 100 spins triggered on your 1st dep are credited at a rate of 25 spins per day over 4 days. Bonus spins winnings credited as bonus funds & capped at £50. For the 1st dep offer, this winning cap shall be applied to each set of 25 spins. Bonus funds separate to Cash funds and subject to 35x wagering. Terms apply. BeGambleAware.org
4

100% up to £300 + 100 Bonus Spins

4.9 / 5
TOTAL SCORE
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Terms & conditions apply
18+. New players only. Min Deposit £20 Max Bonus Bet £5 Winnings from spins capped at £50 100 Zee Spins valid on Starburst (first 10 credited immediately upon first deposit; rest credited at 07:00 GMT at 10/day). Spins must be used by 23:59 GMT of the day on which they are credited to player account, any unused shall be removed. Bonus funds must be used within 30 days. Bonus funds are separate to Cash funds, and subject to 35x wagering (bonus + cash). Terms apply. Play Responsibly. BeGambleAware.org
5

Deposit Bonus up to £500

5 / 5
TOTAL SCORE
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Terms & conditions apply
18+. New players only. One offer per player. Min Dep £10. Max bonus bet £5. 1st Dep offer is 100% up to £250 + 100 Bonus spins on Aloha Cluster Pays. Spins expire after 10 days, funds after 30 days. Bonus funds separate to Cash. Wager Req of 35x Deposit + Bonus apply. Terms Apply. BeGambleAware.org. See more
6

100% up to £100 + 10% cashback

4.8 / 5
TOTAL SCORE
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Terms & conditions apply
100% up to GBP100, Not claimable with Skrill or Neteller, Minimum deposit GBP20, Maximum bonus GBP100, Expiry 30 days, Wagering x35. Maximum bet size: £5 Further T&Cs apply.

The Best Slot Sites Ranked, Reviewed and Rated

The editorial team at FreebieSlots have decades worth of experience both as slots players and operators in the online casino gambling industry.

Our writers have worked in various sections of the online casino industry, from the customer support teams to backend developers at some of the classiest casino operators in the UK. We are regarded as specialists in all things related to online slots. In addition, we have accumulated years worth of playing slots at hundreds of slot sites across the UK.

We strongly feel that our experience puts us in a prime position to provide you with reliable, easy to read and efficient information to help you decide the best place to play online slots and spend your hard-earned cash.

When searching for the best sites to play slots, it is reasonable for us to assume that we look for the same components that you do. Therefore, important characteristics that make up the DNA of the top slots sites include; fast withdrawals, daily/weekly bonuses, an acceptable rewards programme, a competent customer service team and of course, a large selection of the best slot games from a variety of the best slots providers. In addition, favourable wagering requirements on bonuses are always a plus. The characteristics we just mentioned can be found in all of the slot sites listed on this guide to the best slot sites in the UK.

Top 10 slot sites

Due to our research, our online casino reviews are, to a large degree, the most informative and comprehensive you will find anywhere. It is our priority to identify the best sites for you to play online slots at. As a consequence of our industriousness, we have listed for you the top 10 slot sites in 2021 below.

Top 10 Slot Sites in the UK

  1. Playzee Casino – The best overall slot site in the UK today
  2. Fun Casino – A large selection of online slots as well as 10% cashback on all losses
  3. PlayFrank Casino – The top Aspire Global casino brand
  4. Skol Casino – Launched in 2021, Skol casino is the epitome of a brand-new online casino
  5. SlotNite – The number one casino for slots players
  6. All British Casino – Perfect casino for UK players
  7. Pink Casino – Premier brand casino
  8. LeoVegas – A world-class brand that has stood the test of time
  9. 21 Casino – The best UK casino for promotions and loyalty bonuses that combines slots with a live casino
  10. Hyper Casino – A specialist slot site with 10% cashback on losses

Our Pick of the Best Online Slots

Now that we have clarified our top 10 slot casinos, it is time to let you know how we rate the best games. Our slot review specialists look intrinsically at certain slot features, including the RTP, variance, bonuses available, features and whether or not the slot has a free games round. We also take into account the maximum and minimum bet limit per spin and the games overall payout. Once we have established which slots utilise the majority of the features we regard as a major contributing factor to creating a top tier game, we then look to distinguish other factors such as graphics and playability.

We have put together a list of the best UK online slots, so if you are new to this side of gambling, here is a great place to begin your journey:

  1. Bonanza Megaways by Big Time Gaming
  2. Aloha Cluster Pays by NetEnt
  3. Rome: The Golden Age by NetEnt
  4. Immortal Romance by Microgaming
  5. Book of Dead by Play N Go
  6. Punk Rocker by No Limit City
  7. Dead or Alive 2 by NetEnt
  8. Mayan Wild Mystery by StakeLogic
  9. Rainbow Riches Pick N Mix by Barcrest
  10. The Catfather by Pragmatic Play

We recommend checking our individual slot reviews to discover if your next choice of casino offers these games. Don't forget, all of the online slots listed on this page are compatible with hand-held devices too. For more info, here's our guide to the top mobile slots.

Play Bonanza Megaways at the best slot sites

How We Rate the Top Slot Sites

At FreebieSlots, we have a team of dedicated casino review specialists who sign up for an account at each site to monitor the simplicity of the signup process and test each casinos level of security provided. After the registration process is complete, they will test the bonus offers and compare them against other sites. We then rank the casinos on the value they offer players. We test the sites for fairness, speed, graphics, usability and mobile-friendliness. We also ensure that we make multiple deposits with different deposit methods to score the site on how quickly they process casino deposits and withdrawals. Finally, we will interact with customer service representatives at each slot site and rank them on how helpful, professional and friendly they are.

There are certain key criteria that the FreebieSlots review team look for too. Game variety, quality of games available, bonuses and slots on offer are important characteristics of what makes a top-quality online casino. All slot sites listed on this guide are given a star rating, with five-star casinos deemed the best. Our casino reviews are broken down into game selection, the availability of online slots, software, VIP Programs, mobile play, casino banking options and overall casino experience. An overall score is then given so that you can compare them and find the best slot site to play which suits your individual needs.

Following this process, we can provide you with accurate information as to which are the best online slots sites in the UK. We can confirm that all of the sites listed on this page provide you with a comprehensive selection of bonus offers, a variety of different deposit and withdrawal options and a wide range of the top online slot games. In addition, we only recommend trusted sites that are regulated by the UK Gambling Commission (UKGC). This ensures that you will be playing your favourite online slots at an online casino that a team of independent regulators has thoroughly inspected to ensure safety, security and trustworthiness.

Our reviewers are also on hand to check and review all new online slot sites as soon as they are launched, as many of these sites come with improved bonuses and games for you to take advantage of. Finally, we ensure to review existing sites ongoing to check that they continue to operate to the highest standards.

To sum up, here are the characteristics we take into account when rating a slot site:

  • Game variety
  • Quality of games available
  • Site speed
  • Graphics
  • Mobile-friendliness
  • Deposit and withdrawal methods
  • Bonus offers available
  • Regulated by the UKGC
  • VIP programs
  • Customer support
  • Overall experience
  • Awards

With all this information available to you in one place, we are confident that we can provide you with helpful, easy to use and accurate information.

Helping you to Locate the Best Welcome Bonuses

One of the fundamental main drawing points of any slot site is their welcome bonus. Both new and experienced slots players are attracted to casinos that offer generous welcome offers. However, making sense of sign-up bonuses is not always easy. We have put together some numbered rules you should look out for when choosing which slots bonus to play with.

  1. Triggering the bonus – You should quickly find out exactly how to trigger the bonus and then decide if you are comfortable enough with taking the steps necessary to trigger the bonus. Most casinos will offer bonuses to you if you make some deposit. A few select casinos will give players bonus money to play with just by registering. These bonuses are known as no deposit bonuses. You should always check the minimum deposit required to trigger the bonus. This will usually be £10, but it can vary. Remember, two deposits of £5 will likely not trigger the bonus. It would be best to look for the maximum amount you can win using the bonus and whether there are caps on any bonus winnings.
  2. Meeting the wagering requirements – Always make sure to check the wagering requirements on any bonuses. Almost all bonuses will have some form of wagering requirement unless specifically stated otherwise. A wagering requirement usually requires you to bet your bonus/winnings a specific number of times before you can make a withdrawal. When aiming to hit the wagering requirement, it is important to remember to only use your bonus on games that qualify towards the requirements. Usually, online slots qualify.
  3. Playing games that are not restricted – Only certain games can be played using your bonus money. Typically, slot machine sites will restrict you from using your bonus funds on low volatility slots such as Blood Suckers or Starburst. The chances are high that you will not be able to use your bonus funds on progressive jackpot slots. Some bonuses are more flexible than others, however.
  4. Bonuses using different payment options – If you prefer to make your casino deposits using an e-wallet, ensure to check the conditions of the bonus first, as your payment type may not be eligible to trigger the bonus.
  5. Expiry times – Almost all casino bonuses have an expiry time attached to them. If you trigger a free spins bonus, for example, you should check the terms and conditions as to the time you have to use the free spins. A bonus will usually be available for you to claim from the time of registration up to seven days. However, some slot sites may restrict this to 48 hours or less, whilst others will allow you a full 30 days to use your bonus. We recommend making use of your bonus funds or free spins ASAP. Slots bonuses are there to be used, not wasted.

You can find our guide to free slots spins bonuses here.

Slot Sites with the Best Bonuses in November 2021

Skol Casino

  • Huge welcome bonuses
  • Great Slots Library
  • Weekly Rewards

The UKGCs role concerning Online Slot Sites

The online gambling industry in the United Kingdom is perhaps the most regulated in the whole world. UK slot sites rank among the safest and most trustworthy in the world thanks to the influence of the UKGC. For an online casino operator to offer its services to gamblers in the UK, it must be awarded a license from the UKGC. The casino must pass stringent and thorough tests to prove that its services are fair, safe, and trustworthy to gain such a license.

At FreebieSlots, we aim to ensure that the terms offered by the casinos are clear and transparent to you, our website visitors.

Slot Game Software

For you and ourselves, the most important features of slot sites online are the game on offer. Fortunately, you will get access to thousands of different slot games once you sign up. There are plenty of different software companies, each of which aims to provide slots players with a range of exciting slot games to play, from industry giants like NetEnt, IGT and Microgaming to smaller game providers such as Yggdrasil, Push Gaming and No Limit City. Each slot studio will have its own styles and game types with differentiating features and varying volatility levels.

You should be aware, though, not every software developer has a partnership with every casino. Before you make a deposit, we recommend looking at what slot games are on offer at each site. For example, some brands sign exclusive deals with one slot supplier. Other casinos will do their best to ensure they have deals agreed with many slot developers to provide their players with the widest range of slots possible.

For more information regarding which online slots can be found at which operators, read our individual casino reviews where we detail exactly which slot developers can be played.

Banking Options at Slot Sites

You can pick from several different ways to deposit into and withdraw out of your online casino account. Depositing via Mastercard and Debit card s an option at pretty much every online site. But there are plenty of other methods to consider, too, such as e-wallets like PayPal, which offer efficient, safe and instant deposits and withdrawals.

For more information on depositing with PayPal, check out our guide to PayPal slots and casinos.

A Final Note Regarding Licensing at UK Slot Sites

All the slot sites we have listed and reviewed at FreebieSlots are licensed by the UK Gambling Commission. To comply with the terms of a UKGC license, casino operators must offer a fair, safe and secure service to their customers. If operators break the rules, they can face penalties, including fines or having their license revoked.

This ensures that you can feel safe when gambling online, that your financial transactions are secure and that the gameplay offered by the regulated slot sites on this page are fair.

If you have an issue with any of the facts presented here, please do not hesitate to contact us.

FAQs

  1. Which is the best online slot site to play at?

The best slot sites will offer you a wide range of games, including slots from the leading slot developers. They will also provide you with generous and competitive welcome bonus packages, including free spin and match deposit bonuses. The top slot sites will ensure that you get access to a professional customer service team, in addition to giving you access to a wide range of casino deposit and withdrawal options. One of the best online casinos currently operating in the UK is Playzee Casino.

2. What slot site offers the best odds on games?

All slots and casino games payout according to the Return to Player (RTP) percentage. This tells you how much money will be paid back to you in winnings regarding how much money is wagered. Of course, this is just a theoretical perspective and does not take into account luck. The real amount of money paid back will change from session to session. A game with 96% RTP will pay back £96 for every £100 wagered. To find a casino with the best odds, you should look for a casino offering games with high RTP levels.

3. Where can I find the slot site with the biggest payouts?

How much a casino pays out is determined by which games they have on offer to you. High payout slots include slots such as Rome: The Golden Age by NetEnt, which has a payout of 100,000x your bet. Other high payout slots include progressive jackpot slots, which can pay out millions of pounds to lucky players who trigger the jackpot.

4. Is it possible to win real money playing slots online?

Yes, it is possible to win money playing slot games online. You must deposit using your debit card or any other banking option accepted by the online casino site in question to win real money. Most slots can be played from as little as 2p per spin all the way up to £500 per spin and offer payouts into the £1,000s of pounds. If you win money, you can withdraw it back into your bank account and spend it as you wish.

5. Can I play progressive jackpot slots?

Yes, there are plenty of UK slot sites that offer you the opportunity to play progressive jackpot slots for real money. Some have smaller prizes which are triggered weekly, whilst others have prizes that run over £1 million. These are rarely triggered, often once every several months.

6. What is the best online slot game?

There are tens of thousands of online slot games which are playable at UK casinos. The answer to which one is the best depends entirely on your personal preference. However, some of the most frequently played include Starburst by NetEnt, Bonanza Megaways by Big Time Gaming and Book of Dead by Play N Go. You will find plenty of game reviews on our site so that you can make a truly informed decision on which slot to play.

7. Are online slots fair?

Yes, online slots are fair, so long as you play at a regulated online slot site. All online casinos taking bets from UK gamblers must hold a license supplied to them by the UK gambling watchdog – the UKGC. If a casino holds this license, it means that everything about them, from their software and security to their slot games, has been thoroughly checked and scrutinised by an independent body of gambling regulators. All of the casino operators at FreebieSlots hold a license from the UKGC.

8. Can I play slots on my mobile phone?

Over half of all players visiting online casinos are doing so via their mobile phones. Game developers use HTML5 technology, which ensures that their games run perfectly on all devices, including mobile phones. Our casino reviewers have ensured that all our recommended sites are 100% accessible by any modern mobile device.