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Find the Best Online Slots in the UK at Discover Slots

As our name implies, you can discover some of the top slots and slot sites in the UK with our honest reviews. Our goal is to provide you only with the top options for both slots and sites. How can we do that? Our experts with years of experience provide an unbiased opinion on the numerous unique slots. You will learn that you can trust us to keep you updated with the latest developments in the world of online slots.

Expert Slot Insights

Top-Tier Casino Partners

Gambling Guru Know-How

Trusted Operators

Detailed Game Analysis

Expert Opinions

Responsible Gambling

Exclusive Bonuses

Comprehensive Guides and News

Dive into the Diverse World of Online Slots

Ready for some fun? Let’s jump right in and explore the colorful, exciting, and ever-changing world of online slots together!

Progressive Jackpot Slots

Experience the thrill of progressive jackpot slots, where every spin heightens the suspense and could potentially unlock a world of unimaginable riches!

New slot sites

Get a fresh spin on your gaming experience! New slot sites offer innovative features, creative themes, and enticing bonuses that are just waiting to be discovered.

RTP Slots

Step into the intriguing world of RTP slots, where every spin combines the thrill of luck with a smart strategy based on return to player rates. A perfect blend for those seeking both fun and savvy play!

How We Determine the Best: An Inside Look at Our Review Process

In the process of determining the quality of an operator and the slots, we have strict criteria. Listing all the elements that our experts review would take too much time. Instead, we list some of the most important features which are crucial for an online casino. Get inside the heads of our experts by checking out some of the elements they review.

Image credits: Shutterstock

Best Casinos in the UK for Each Slot Game

In addition to game diversity and accessibility, security is one of the most important elements of an online casino. Players should know that they are safe to both join and use the available services of an operator. For this reason, here at Discover Slots, we only list casinos that meet strict security requirements.

By joining any of the brands listed and checked by us, you can know that you are safe. Security measures should ensure that any transactions, but also personal information, are secure.

Furthermore, we also take a closer look at the operator’s licence. A licence from the local authority is mandatory for an operator to offer their services in the region. That is why we closely inspect the validity of the licence. Some operators also have several licences, depending on the region where they operate.

Are they mobile-friendly?

One of the elements that can be crucial for many customers is mobile accessibility. Countless players rely on the brand’s mobile availability to utilise the available features and services.

Our experts dive deep yet again, not only into the availability but also its functionality. Primarily, we look into the availability of a mobile app for the two major platforms, iOS and Android. After that, we check out the download process, and how functional the app is.

The app needs to provide a smooth casino experience and list identical options as the desktop version. Only if the app meets the criteria on our checklist do we list the mobile app as a valid option.

Furthermore, while we do list the lack of a mobile app as a minus, there are some redeeming options. Primarily, the one element that could replace the lack of a mobile app is a mobile-friendly website. Such a site offers the same functionality and services as the desktop version. And most importantly, it will work on the majority of modern mobile devices.

Image credits: Shutterstock
Image credits: Shutterstock

What Are Slot Features?

Slot features are the essential elements of any online slot game, and they can enhance gameplay excitement and potentially increase your winnings.

Some of the most common slot features include jackpot symbols, avalanche reels, scatters, wilds, and free spins rounds. But there are also some more unique features out there that can make your slots experience even more thrilling.

Here are some of the most popular slot features:

  • Jackpot symbols: These symbols can potentially award you large payouts.
  • Avalanche reels: When you land a winning combination, the symbols that were part of the win disappear and new symbols fall into their place. This can create cascading wins, increasing your chances of winning.
  • Scatters: These symbols can trigger bonus rounds, free spins, or other special features.
  • Wilds: These symbols can substitute for any other symbol on the reels, helping you to complete winning combinations.
  • Free spins rounds: These rounds give you the chance to spin the reels for free, often with the added bonus of multipliers or other special features.

There are many other slot features out there, so it’s always a good idea to read the paytable before you start playing. This will give you a better understanding of how the features work and how they can help you win.

What Payment Options Are Available?

The quality of the payment options which are available is another vital aspect of an online casino in the UK. You want to have several options, or if not, the most popular in the region. A variety of payment options goes a long way to show how much the brand cares for their customers. For this reason, we list it as one of the most important aspects of the quality of a casino.

Credit cards are among the most common options. However, many customers would rather resort to e-wallets, or other alternative options. While bank cards are the most widespread, e-wallets are overall faster in making transactions. Additional options include vouchers, cryptocurrencies, etc.

What do we include in our research of payment options? We check out what options are available, but also additional details. Primarily, we look into the limitations of the options, transfer speed, and overall security.

While many of these elements rely on the financial institution instead of the operator, it is still important to look into them. That is why our reviews can come in handy if you want more information on available payment methods without doing your own research.

Image credits: Shutterstock
Image credits: Shutterstock

Best Slot Providers

We mentioned game diversity already. However, we also look at the quality of slot providers. Only having a long list of games is meaningless if the list doesn’t include some of the most popular games. And, of course, the most popular games come primarily from the top providers.

These game providers are actually the creators of the game. You will find that some of the top slots come from a specific list of providers. Some of the most famous providers, which created some of the top slots, are the following: 

By including all of the aforementioned factors on our lists, we make an unbiased opinion on the brand’s quality. If you follow our guidelines, you will have the top gaming experience online. Choosing an operator and doing the research requires effort. So why not let the experts do it, and you don’t have to worry about any of the features?

Online Slot Reviews by Our Experts 

Uncover the secrets of the slot gaming world with our expert reviews. Our team meticulously evaluates game features, RTP rates, and exciting bonuses to provide you with a clear and unbiased guide. Stay informed and enhance your gaming experience with our reliable insights, tailored for both beginner and experienced players in the dynamic world of online slots.


RTP is an average pay-out measure, always below 100%, reflecting the house’s advantage. It doesn’t guarantee wins as they depend on luck and chance. RTP is subject to change, so always visit the official operator’s website for the latest information.

Top Casinos in the UK with Generous Slot Bonuses

Explore a world of rewarding play with our selection of top casinos in the UK, well-regarded for their generous slot bonuses.

Top Pick by Our Editors
bet365 Casino
New Player Offer at bet365 – Discover bet365 Casino with 100 Free Spins
      Deposit and stake £10 on eligible Casino slots to get 100 Free Spins. Time limits, game restrictions and T&Cs apply. Registration required.
          T&C for 20 free spins: UK players only. Enter the relevant bonus code in the ‘BonusCode’ area on the registration form The bonus code is valid until 30.06.2024. Wagering req. 40x. Free Spins will remain valid for 7 days after the issuing date. T&C for 500 free spins: UK players only. Make your first deposit with bonus code ‘NBWELCOME500’ and you will instantly start receiving your Free Spins. The first 50 Free Spins will be automatically credited on your first deposit and an additional 450 Free Spins will be randomly assigned daily. Casino Free Spins must be wagered 40 times. Valid until 30.06.2024. Free Spins will be credited by batches of 25 Free Spins. T&Cs apply. +18.
          Get 250 Super Spins + 10 Ultra Spins
              18+ New accounts only. Min. £20 deposit, debit card only. Up to 50x wagering, game contributions vary, max. stake applies, 7 day expiry. See full terms.
              Get up to £100 Bonus + 50 Bonus Spins
                  18+. New players only. Min deposit £20. Bonuses up to a max of £100 + 50 bonus spins. Wagering bonus 35x. Wagering bonus spins 35x. The winnings must be wagered within 21 days. Bonus T&C apply.
                  Top Pick by Our Editors
                  Casumo Casino
                  100% up to £100 + 50 Bonus Spins
                      18+. New customers only. 100% Deposit Bonus up to £100 on the first deposit. 30x wagering on Deposit and Bonus (game weighting applies) + 50 Bonus Spins (Big Bass Bonanza) of £0.10. Min. deposit £20. T&Cs apply. Play responsibly • T&Cs apply
                      Amazon Slots
                      UP TO 500 FREE SPINS ON STARBURST
                          New players only, £10 min fund, Free spins won via mega reel, 65x bonus wagering requirements, max bonus conversion to real funds equal to lifetime deposits (up to £250), T&Cs apply
                          Top Pick by Our Editors
                          BetVictor Casino
                          Deposit & Wager £10 to Get £30 in Bonuses + 30 Free Spins
                              18+ New customers only. Opt in, deposit, and wager a min of £10 on selected games within 7 days of registration. Get a 3x £10 bonus for selected games and 30 Free Spins on Fishin’ Frenzy. Offer valid until 23:59 UK time on 31.12.24. Debit Card/Apple Pay Payments only. T&Cs apply. Please gamble responsibly.
                              Bet £10 Get £30
                                  18+. New Casino players only. Deposit required. Play £10+ on qualifying games. 40x wager reqs (Bonus only) on selected games. Accept Bonus within 14 days. Bonus valid for 30 days. Certain deposit types excluded. Player restrictions and T&Cs apply.
                                  Editor's Top Pick
                                  Get 30 Free Spins
                                      18+. First deposit only. Min deposit & spend £10. Max 30 spins on TED at 20p per spin. Spins credited upon spend of £10. Full T&Cs apply.
                                      Top Pick by Our Editors
                                      Kwiff Casino
                                      Grab up to 200 Cash Free Spins on Book of Dead! Wager £20 on slots and Get 40 Cash Free Spins for five consecutive days.
                                          18+ new customers only. £20 stake on slots each day within 5 days of 1st deposit to qualify. £0.1 Spins on Book of Dead. £250 total max withdrawal. Full T&Cs apply.
                                          Top Pick by Our Editors
                                          50 FREE SPINS & up to £100
                                              18+,, Full T&Cs apply.. New reg only. Opt in & deposit either £10, £25 or £50 within 7 days & further 7 days to wager your deposit 35x to unlock reward (up to £50 for each of your first 2 deposits). Wagering/game contributions vary. 25 x 10p wager-free spins added to Big Bass Splash with each qualifying deposit, 3 day expiry. Other Promotional Play Restrictions Apply. T&Cs apply.
                                              Editor's Top Pick
                                              NY spins
                                              100% bonus up to £50 Plus 50 Real Money Free Spins on Book of Dead!
                                                  18+ new players only. Maximum £50 bonus. Minimum deposit: £20. Deposit Bonus wins are capped at £500. Max bet with active bonus: £2. Wagering requirement 100% match deposit bonus: 30 times sum of deposit + bonus. Winnings from Free Spins are credited as Real Money without wagering requirement. Some games may not be played with an active bonus. Games may contribute differently when wagering a bonus. Deposit Bonus expires after 30 days if wagering requirement has not been met. Free Spins expire after 3 days. One bonus allowed per person, address, device, IP. For full bonus terms and conditions, please read below. Responsible Gaming
                                                  Slots Royale
                                                  Win up to 500 Free Spins on Big Bass Splash
                                                      New players only, £10+ fund, free spins won via Mega Reel, 65x bonus wagering req, max bonus conversion to real funds equal to lifetime deposits (up to £250), T&Cs apply
                                                      Wicked Jackpot
                                                      Deposit & Spin The Wheel To Win Up To 450 Spins
                                                          New players only. 18+. Valid until further notice. Min dep £10. 1 wheel spin. Wheel prizes and odds vary & include free spins [FS], Game Bonus [GB], and Coins. FS wins granted in GB over 5 days & valid for 3 days. GB valid on selected games only. WR: 35x Games Bonus;35x FS Wins. GB wins cap: £100 + initial bonus. UK: deposit balance can be withdrawn at any time. Country restrictions apply. Full T&C apply
                                                          Stake £20 On Big Bass Bonanza & Get 100 FREE Spins
                                                              18+, New customers only, register, deposit and stake £20 on Big Bass Bonanza within 7 days, and claim 100 Free spins on Big Bass Bonanza. Free spins expire 30 days after credited. Ends 31/12/24 at 23:59 GMT. Full T&Cs Apply. .
                                                              Up to 100 Free Spins, No Deposit Bonus
                                                                  18+. Available to ID-verified players only. Up to 100 Locked Free Spins (10p). Wheel of Fortune (WOF) will appear as a pop-up. Available to claim for 7 days. Prize not guaranteed. Wins from free spins are credited to your Bonus Credit Account, and available for 7 days. 35x wagering. Max win post Wagering: £10. T&Cs Apply.
                                                                  Swift casino
                                                                  100% BONUS UP TO £75 + 50 FREE SPINS ON BOOK OF DEAD
                                                                      Automatically credited upon deposit. Cancellation can be requested. First Deposit Only. Max. Bonus £75. Maximum amount of Free Spins is 50. Game: Book of Dead, Spin Value: £0.10. WR of 30x Deposit + Bonus amount and 60x Free Spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings and bonus amount or £5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds. Bonuses do not prevent withdrawing deposit balance. Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonus Policy applies. #AD 18+. T&Cs apply.
                                                                      Up to 100 Free Spins, No Deposit Needed!
                                                                          18+. Available to ID-verified players only. Up to 100 Locked Free Spins (10p). Wheel of Fortune (WOF) will appear as a pop-up. Available to claim for 7 days. Prize not guaranteed. Wins from free spins are credited to your Bonus Credit Account, and available for 7 days. 30x wagering. Max win post Wagering: £10. T&Cs Apply.
                                                                          Editor's Top Pick
                                                                          Magic Red
                                                                          100% up to £50 welcome bonus + 110 Extra Spins Exclusive
                                                                              18+. New Players Only. Welcome Package split over 3 deposit. Min 1st Deposit: £10. Min 2 nd and 3rd Deposit: £20. Wagering Requirement: 35x. Spins are credited in specific games. Spins expire after 24 hours. Promotion available for 72 hours. Maximum winnings from spins: £100. Terms and Conditions apply. .
                                                                              Top Pick by Our Editors
                                                                              Grosvenor Casino
                                                                              Deposit £20, Play with £50
                                                                                  NEW CUSTOMERS ONLY. MIN DEPOSIT £20 (EXC PAYPAL). MAX BONUS £30, BONUS AMOUNT NON WITHDRAWABLE, PLAYABLE ON SELECTED GAMES ONLY. 30X WAGERING FOR £30 BONUS. EXPIRES WITHIN 30 DAYS. MAX WIN £2,000.*T&CS APPLY. 18+. GambleAware
                                                                                  Recommended by our experts
                                                                                  Stake £10 get up to 200 Free Spins
                                                                                      New customers only. Opt In required. £/€10 min stake on Casino slots within 30 days of registration. Max bonus 200 Free Spins on selected games credited within 48 hours. Free Spins expire after 7 days. iOS app restrictions may apply. Email/SMS validation may apply. Not available in NI. Full T&Cs apply.
                                                                                      Editor's Top Pick
                                                                                      Get a 1x Rollover Casino Bonus up to £25 PLUS 10 Free Spins!
                                                                                          Simply Deposit and Play a minimum of €/£10 and if your QuinnCasino account has losses at the end of your first day’s play (23:59), we’ll refund 50% of your losses as a 1x Rollover Casino Bonus up to £25 PLUS, credit your account with 10 Free Spins on ‘Golden Winner’. Even if your account is up, you’re guaranteed £5 Casino Bonus (1x Rollover) PLUS the 10 Free Spins if you stake a minimum of £100. T&Cs apply | 18+ New UK Customers Only |
                                                                                          Top Pick by Our Editors
                                                                                          Coral Casino
                                                                                          Get A £50 Welcome Bonus When You Play £10 on Slots
                                                                                              18+. New Casino players only. Deposit req (certain types excluded). Play £10+ on qualifying games to get a £50 Bonus (selected games, 40x wag req, accept within 14 days, valid for 30 days).
                                                                                              Editor's Top Pick
                                                                                              Deposit £10 Get £40
                                                                                                  18+ New Customers only. Minimum Deposit £10 and Get £40 in Casino Bonus Funds. Debit card only. Up to 50x wagering, game contributions vary, max. stake applies, new customers must opt in and claim offer within 24 hours and use within 30 days. Further T&Cs apply. #AD
                                                                                                  Editor's Top Pick
                                                                                                  100% UP TO £50 + 100 SPINS
                                                                                                      18+. New Players Only. Min. deposit £20. Max bonus allowed is £50. Offer duration upon receiving is valid for 2 weeks (14 days). Max Win from spins is £100. 35x wagering applies both for bonus and spins part. Spins are credited on specific games(Starburst). Spins expire after 24 hours if unused. Full T&Cs Apply. 18+. Gambling can be addictive, please play responsibly.
                                                                                                      Editor's Top Pick
                                                                                                      Deposit & bet £20 GET 200 FREE SPINS
                                                                                                          New casino players only. Min. deposit £20 with code ‘CASINO200’. Debit card only. Wagering requirements apply. Selected Slots only. 1 redemption point per £1 to clear bonus. Game contributions vary. 7-day expiry. Terms apply.
                                                                                                          Top Pick by Our Editors
                                                                                                          Videoslots Casino
                                                                                                          100% up to £200 Bonus + 11 welcome spins wager free
                                                                                                              New players only. Min deposit: £ 10. Max deposit: £ 200. 30 days to activate the bonus. 35 times wager requirement within 60 days. Account balance is withdrawable at any time Upon withdrawal, any remaining bonus spins are forfeited; 100% up to £ 200 sign-up bonus can be activated and used in conjunction with the 11 Welcome Spins offer. 7 days to activate the spins; Bonus spins expire 24 hours after activation. Full T&C Apply. +18. Play responsibly.
                                                                                                              Top Pick by Our Editors
                                                                                                              Betfair Casino
                                                                                                              GET 50 FREE SPINS WHEN YOU JOIN
                                                                                                                  Offer is available to new customers who register via the promo code CASAFS. Winnings are paid in cash. Free spins valued at 10p. Get an additional 100 free spins when you deposit and spend £10 on eligible games. Full T&Cs apply.
                                                                                                                  Editor's Choice
                                                                                                                  50% up to £250 Casino Welcome Bonus
                                                                                                                      New bettors; Use code CASINO; Wager bonus 50x to release bonus winnings; Valid 30 days; Stake contribution, games and payment method exclusions apply; T&C apply; 18+
                                                                                                                      Top Pick by Our Editors
                                                                                                                      bet365 Games
                                                                                                                      Games at bet365 – New Player Offer: 10 Days of Free Spins – Get up to 200 Free Spins when you sign up and deposit a minimum of £10.
                                                                                                                          Min £10 in lifetime deposits required. Offer must be claimed within 30 days of registering a bet365 account. Reveal prizes of 5, 10 or 20 Free Spins; 10 spins on Free Spins reels available within 20 days, 24 hours between each spin. This offer closes to new customers at 10:59 GMT on 31st July 2024 and can only be claimed by customers who register prior to this time. Max. prize, game restrictions, time limits and T&Cs apply.

                                                                                                                          From Mythical to Modern: A Tour of Diverse Slot Themes

                                                                                                                          An element that makes each slot unique is the theme of the game. Themes don’t actually affect the gameplay, but bring something interesting to the repetitive spinning. Themes can alter the symbols, paylines, overall design, etc.

                                                                                                                          You can choose from various themes and find one most suitable for your taste. The list of themes includes probably anything you can think of. However, if you can’t decide for yourself, check out some of the most popular slot themes, like the following:

                                                                                                                          Image credits: Shutterstock

                                                                                                                          The themes bring an immersive feeling to the games. So if you want to relive a certain era, or want to feel like a Viking, you can. Simply choose one of the slots with a similar theme. At the same time, you can also try to get that luck of the Irish by choosing slots with a similar theme. 

                                                                                                                          There are practically no limits to the themes you can choose, and new ones are added regularly. From mythical to modern, choose your preference and improve your experience.

                                                                                                                          Expert Minds Behind Discover Slots

                                                                                                                          Discover Slots has a team of exceptional authors, each with unique expertise and passion for online casino slots. From virtual gambling and bonus analysis to graphic design and UX specialization, they offer captivating content and responsible gaming insights. Combining their knowledge and skills, they conduct comprehensive slot reviews, providing unbiased guidance to enhance the gaming experience. This talented team will lead you through the exciting world of online slots, uncovering the best games and bonuses available.

                                                                                                                          Advantages and Disadvantages of Playing Slots Online in the UK

                                                                                                                          Playing slots online instead of in a brick-and-mortar casino definitely has some advantages. Overall, the main advantage of online slots is accessibility. You can play your favourite slots from practically anywhere if you have a mobile phone and an internet connection.

                                                                                                                          Similarly, the variety of slots you can play is incredible. While you can also play countless slots in physical casinos in UK, these are right at your fingertips. If you don’t like a slot, simply turn it off and start another one. It is that simple.

                                                                                                                          However, as irrelevant as they might be, there are still some disadvantages to playing online slots. Namely, in order to play slots at an online provider, you need to create an account. While the registration process is simple overall, some customers might find it tedious.

                                                                                                                          Furthermore, it is important to find a suitable and safe operator. There are brands available that don’t provide top-tier security. Luckily, we take care of this element, as we provide honest and detailed reviews of countless operators. Choosing from our list ensures you can trust the brand.

                                                                                                                          Check out the following table for a summary of the pros and cons of online slots.

                                                                                                                          Pros Cons
                                                                                                                          An astonishing number of various slots and themes Requires registration and verification of an account
                                                                                                                          Accessible from almost anywhere Some operators are not safe, which is why we offer our guides
                                                                                                                          Quick and easy deposits with the option to set limits

                                                                                                                          Latest slot reviews from our experts

                                                                                                                          Discover Slots FAQ

                                                                                                                          Check out the answers to some of the most common questions players ask about online slots, and slot sites below. Our website provides, in addition to extensive reviews, guides and instructions. You can learn everything you need to know about the top slot sites, slot games, and other features. 

                                                                                                                          Online slots are among the most popular casino games, and by far the most diverse. The sheer number of slots provides an endless source of options for casino players. However, the principle behind each of them is the same. You determine the stake, spin the reels and try to hit the required symbols to win.

                                                                                                                          There are numerous factors that determine the quality of an online casino site. Primarily, you want to look into the diversity of games, accessibility, promotions, etc. But here at Discover Slots, you can simply find detailed reviews of many online slot sites. Our honest and extensive reviews give insight into many online operators.

                                                                                                                          If you go by our standards of determining the quality of an online slot site, yes, they are completely safe. We consider the security and safety of customers to be one of the leading quality factors of a brand. If you have a similar opinion, or consider safety an indispensable factor, check out some of our reviews and find a secure operator.

                                                                                                                          Some of the top online slot sites offer a variety of slot machines. The diversity of games includes slots with different themes, paylines, and other factors. There are also different slots, such as the classic and multi-payline slots. In order for a slot site to be considered a top option, they should provide numerous different slots.

                                                                                                                          Welcome bonuses are promotions exclusively for new players. Customers can redeem them after joining by completing all the prerequisites. They serve as an incentive for new users, as they provide a bonus amount to use at the casino. Some of the offers are quite interesting and worth looking into. Promotion can also be a decisive element of a brand for many players.

                                                                                                                          Picking a slot depends on the player’s preferences. There are no guarantees that the slot you decide to play will be a winning option. You won’t be able to ensure winning by selecting specific slots. But, you can choose between a range of slots and choose one that you find the most interesting to play.

                                                                                                                          If the slot site offers a mobile app or a mobile-friendly website, you will be able to access it through a mobile device. One of the factors on our list of mandatory features is mobile accessibility. By choosing one of the top slot sites from our site, you will be able to access the operator through your mobile device.

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