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Betting Sites » Best casino online » Best UK Slots Sites 2024: Our Top 10 Picks

Best UK Slots Sites 2024: Our Top 10 Picks

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There are plenty of slot sites looking to tempt punters with generous sign-up offers, new games and exciting features. But which ones are the best? We’ll take you through the best slot sites, the best slots sites for offers and also look into the features such as the range of games, withdrawal options and site design.

Our Top 10 Slot Sites

1. Grosvenor Slots

Grosvenor Casino Slots
Image: December 2024

Grosvenor has a brilliant range of slot games to can choose from including Big Bass Bonanza and Chilli Con Cash. They focus on casino-related betting, so it won’t come as much of a surprise to see them setting the bar high with their online slots. They have a great welcome bonus available to new customers too, with a sizeable amount of funds being available if the new customer meets the qualifying criteria. Free spins are on offer with this site’s welcome offer, so it makes them one of the best around for online slots.

Grosvenor Casino
Deposit £20, Play with £50
  • Many promotional offers
  • Plenty of payment methods available
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

2. Sky Vegas Slots

Sky Vegas Slots
Image: December 2024

Sky Casino are more than deserving of a place in the top two of our list, as they have plenty of positives going for them when it comes to slot games. They’ve got a great range of games in their online casino, and with online slots that are easy to find, you’d be hard-pushed to find a site that has much better quality than Sky Casino. Their loyalty program also has the option of players being rewarded with free spins to use on slot games if they wish to do so, which is another great initiative that they run on a weekly basis.

Sky Vegas
50 SERIOUSLY FREE SPINS & DEPOSIT & SPEND £10 GET 200 FREE SPINS
    NEW CUSTOMERS ONLY. OPT IN REQUIRED. 7 DAY FREE SPIN EXPIRY. ALL FREE SPINS WILL AUTO PLAY ON FIRST ELIGIBLE GAME LOADED. £10 STAKING REQUIREMENT MUST BE MET WITHIN 30 DAYS OF OPT IN. ELIGIBILITY RESTRICTIONS APPLY. 18+ FURTHER T&C’S APPLY. GambleAware.ORG

    3. Betfred Slots

    Betfred Slots
    Image: December 2024

    This bookie has fantastic welcome offers and an impressive range of slot games to choose from. With different stakes being available to wager on those slot games, they’re one to consider if you haven’t already signed up. They’re offering their new customers 200 free spins to use on slot games when they make their 1st deposit of £10. This is an offer that’s well worth getting involved with, and with their site being easy to find exactly what you’re looking for when it comes to online slots, they’re one of the best slot sites around.

    Betfred
    £50 IN FREE BETS, WHEN YOU BET £10
    • Hugely attractive new customer welcome offer, offering £50 in bonuses
    • Popular Double Delight promo offers great value on goalscorer bets
    New customers only. 18+. Register with BETFRED50. Deposit £10+ via Debit Card and place first bet £10+ at Evens (2.0)+ on Sports within 7 days to get 3 x £10 in Sports Free Bets & 2 x £10 in Acca Free Bets within 10 hours of settlement. 7-day expiry. Eligibility & payment exclusions apply. T&Cs apply.

    4. bet365 Slots

    bet365 slots
    Image: December 2024

    This bookmaking giant is performing considerably well when it comes to online slots. They’ve got plenty to offer, and with a welcome bonus that rewards you with free spins, they know exactly how to tempt new customers into signing up. You have to make a 1st deposit and stake £10 on selected casino games on their site, and you’ll then be credited with free spins that can be used on bet365’s casino. Their site is arguably one of the best around when it comes to online slots, although in terms of promotions throughout the year, they could provide more existing customer offers for free bets. But if you’re a new customer looking to play slots online, then bet365 could be the bookie to use. They’re making the best start possible for new players, by offering them free spins to use on a great range of slot games.

    bet365 casino
    New Player Offer at bet365 – Discover bet365 Casino with 100 Free Spins
    • Reliable bookmaker
    • Great range of games
    18+. Deposit and stake £10 on eligible Casino slots to get 100 Free Spins. Time limits, game restrictions and T&Cs apply. Registration required.

    5. William Hill Slots

    William Hill Slots
    Image: December 2024

    This well-established bookie has many positives that both new and existing customers can look forward to using whilst using their online slots. William Hill also has a great range of promotions available on their online slots that are well worth mentioning. They have a welcome offer that is a no deposit bonus, which is great to see. Many of their competitors require you to make the 1st deposit before receiving bonuses such as free spins, or other various slots bonuses. You can play all of William Hill’s slot games on their mobile app, which allows you to wager your funds on your chosen slot game, whilst on the go. William Hill’s site is one of the best around, and that doesn’t change with the slots area of their site, as their online casino is easy to find, and with a brilliant range of online slots to play, you’ll have plenty of fun whilst using this bookie. They’re more than deserving of a place in the top five as one of the best slot sites to use.

    William Hill Vegas

      6. Betfair Slots

      Betfair Slots
      Image: December 2024

      They have a great welcome bonus that rewards new customers with a sizeable amount of bonus funds, as well as free spins also being on offer, which is a great way to start on online slots with Betfair. They have a 1st deposit bonus that doesn’t require too much in terms of qualifying criteria, and although the wagering requirements could be less hefty, their online slot games have a great depth to them, with something being there for the majority of players. We also want to mention their daily jackpot which accumulates throughout the day and includes a great opportunity to win a daily booster

      Betfair Casino
      GET 50 FREE SPINS WHEN YOU JOIN
      • Great odds & cash out feature
      • High quality site
      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.

      7. BetVictor Slots

      betvictor slots
      Image: December 2024

      They have one of the best welcome bonuses around, and with a slot site that is up there with the best, you can’t forget about BetVictor. All you have to do to obtain their generous welcome bonus of free spins and bonus funds to use on their online slots is make a 1st deposit of just £10, before being awarded the free spins and bonus funds when you’ve staked the deposited funds on their slot games. They have daily jackpots available throughout the year on their slot games, and with popular slot games such as Fishin Frenzy and Starburst being accessible, they’ve got you covered with all you need to be one of the best slot sites around.

      Betvictor Casino
      Get £30 in Casino bonus funds + 30 FS on Fishin' Frenzy when you wager £10 on Casino
      • User-friendly interface
      • Great offers for new customers
      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 Casino Bonus Funds for selected games and 30 Free Spins on Fishin’ Frenzy. Max withdrawal £750. Offer valid until 23:59 UK time on 31.12.24. T&Cs apply. GambleAware.org Please gamble responsibly.

      8. Ladbrokes Slots

      Ladbrokes Slots
      Image: December 2024

      Compared to their sportsbook, they’ve got a sizeable welcome bonus on offer for new customers, which will certainly tempt them into signing up. They have one of the best online casinos around, and they’ve got you covered with online slot games that will keep you entertained from your chosen device. They’re one of the best UK slot sites to use if you’re looking for online slots that offer you differentiation with each game. Classic slots such as Rainbow Riches, Deal or No Deal Megaways, and Eye Of Horus are hugely popular amongst these customers, but they’re also offering new slot games regularly, as they look to keep other casino players entertained whilst using this online casino. There is also an Instant Spins game available daily at Ladbrokes’ which gives existing customers the chance of cash prizes and free spins, which is another real positive for this bookie.

      You can find out more on our page dedicated to the Ladbrokes Casino sign up offer page.

      Ladbrokes Casino
      Bet £10 Get £30 + 30 Free Spins
      • Always outstanding promotions
      • Plenty of games to choose from
      18+. New Casino players only. Deposit required. Min bet £10 on qualifying games. 40x wager reqs (bonus only) on selected games. £30 Bonus + 30 Free Spins for a selected game. Accept within 14 days. Valid for 30 days. Spins value £0.20 each. Certain deposit types excluded. Player restrictions & T&Cs Apply. GambleAware.org

      9. Unibet Slots

      Unibet Slots
      Image: December 2024

      They’re the online slot site to head to if you’re looking for exclusives. Unibet has an eye-opening range of exclusive online slot games to choose from, with games such as Britain’s Got Talent, Celebrity Juice, and Jester Wheel being just some of the most popular. They are one of the best slot sites to use for both new and existing players as well, as you can find everything that you need on their online casino with relative ease, as it’s all clearly labelled and displayed. They have a 1st deposit bonus available to new customers as well, as you can benefit from free spins to use on their slot games, although the wagering requirement on those bonus funds could be less if they’re to be in line with their casino competitors. However, on the whole, Unibet is one of the slot sites that deserves a spot within the top ten. They have a range of payment methods available to add in with the impressive game availability which makes them an impressive place to play.

      Unibet Casino
      Deposit £10 Get £40
      • Great range of payment methods
      • Casino tournaments
      18+ GambleAware.org. 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

      10. Casumo Slots

      Casumo Casino Slots
      Image: December 2024

      They are one of the best slot sites to use for online casinos. They’ve got a site that is easy to navigate your way around, as well as having an impressive welcome bonus that offers punters free spins to use on online slots at Casumo Casino. They have a solid range of casino games to choose from too, with their slots games being a particular highlight. You can earn rewards such as bonus spins as an existing customer, which is pleasing to see, as many of their casino competitors don’t offer as much to existing players, with the majority of offers found on the best slot sites being aimed at new customers only.

      Casumo Casino
      Up to £150 + 100 wager free spins
      • Great selection of withdrawal and payment methods
      • Great casino site for all round players
      18+. New customers only. Promo period: 02.12.2024. 00:01 GMT- 06.01.2025. 23:59 GMT. 150% Deposit Bonus up to £150 on the first deposit. 30x wagering on Deposit and Bonus (game weighting applies) + 100 Wager-Free Spins (Winter Champions (Relax Gaming)) of £0.10. Min. deposit £20. No wagering requirement. Play responsibly. GambleAware.org Full T&Cs apply.

      Best Slots Sites for Offers

      Grosvenor Casino

      Grosvenor has a great range of offers that you can explore when using their site for slots-based games. They have a brilliant sign-up offer that new customers can look forward to using, and with the bonus funds on offer being a sizeable amount compared to many of their casino-related competitors, you’d be hard-pushed to find better out there.

      You can get up to a £700 bonus to use on classic slots when you meet the wagering and qualifying criteria on their site. They’ve got a great range of slots games to choose from as well, so you’ll be spoilt for choice when it comes to choosing the best game for you whilst with Grosvenor. They have jackpot slots, mobile slots, and other casino games that you can access on their slot site, and with this sizeable welcome bonus, you won’t find much better when it comes to online slots sites.

      William Hill Casino

      William Hill is another bookie that catches the eye when it comes to their offers on slots.

      This well-established bookmaker also offers regular slots-based promotions on their site, so it’s important to keep an eye out regularly, as they have plenty to offer both new and existing customers. Their range of online slots is another positive that William Hill customers can look forward to playing as well, as they’ve got many to offer you, and with different stakes available on each of those online slots, there’s something there for customers with varying budgets to use on online casinos.

      BetVictor Casino

      BetVictor has plenty to shout about when it comes to their welcome bonus, as they’re offering new customers bonus spins to use on their slots games. You’ll be awarded £30 to use on selected slot games on their site, and with 100 free spins also being credited into your account when the qualifying criteria are met, you’ll have a great start to playing on BetVictor’s online slots.

      It’s worth remembering that they have wagering requirements that have to be met with the welcome bonus. The bonus funds expire within seven days after being credited into the customer’s account as well, so make sure to use the free spins on offer within that time frame, otherwise, you won’t have another opportunity to obtain this generous welcome bonus from BetVictor. There is also a minimum deposit of £10 to obtain this welcome bonus as well, so make sure you read through the terms and conditions of the welcome offer from BetVictor carefully, whilst also remembering to play responsibly, and within your budgets.

      Best Slots Sites for Beginners

      Image: December 2024

      Unibet is one of the best slots sites to use for beginners, as they’ve got plenty of useful tools and information that you can use if you’re relatively new to slot games with a bookmaker.

      They have beginners’ guides on how to play slots, as well as other articles relating to new players that are looking to get involved in slots games. As well as this, Unibet has a great sign-up offer that you can use as well, as they’re offering new customers £40 to use on their line slots. There aren’t any bonus spins on offer here though, although the bonus funds can be used on online slot games, which makes up for the fact that there aren’t any additional free spins on offer. It’s important to read through the terms and conditions of each welcome offer though, as slot sites have different wagering requirements to meet before a bonus is awarded.

      Best Slots Sites for No Wagering

      For the majority of offers that you use, you’ll be looking for the ones that have minimal wagering requirements. Otherwise, if you choose an offer that requires you to wager the bonus funds on offer many times, then you could end up losing the majority of your profit before you make a withdrawal. Online casinos can tempt you in with what looks like a great welcome with a sizeable amount of bonus spins on offer, but if you have to wager any potential winnings over 50 times, then you have to question whether the original offer is worth it, especially when you’re wagering some of your own money to meet the qualifying criteria.

      Betfred Casino

      Betfred Casino
      Stake £10 get up to 200 Free Spins
      • Great loyalty program
      • Wide wange of promotions
      New customers only. 18+. 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.

      Betfred is one of the best around when it comes to offers that don’t require any wagering requirement in their casino welcome offer. All you have to do is stake funds of £10 on slots at Betfred Casino, and they’ll award you with 50 free spins to use on Lucky Emeralds or Blue Wizard, followed by another 50 free spins on selected slots games at Betfred Casino.

      Their sign-up offer doesn’t require you to wager the bonus spins on offer before making a withdrawal. This makes it the site to use if you’re looking for a slots site that doesn’t require any wagering requirements on their welcome offer.

      bet365 Casino

      bet365 has a great welcome bonus that new customers. Bearing in mind there aren’t any wagering requirements involved in the free spins on offer, it’s certainly worth using. There are certain qualifying games that the free spins can be used on, and you must read through the terms and conditions of bet365’s offer, otherwise, you won’t be able to benefit from the bonus spins.

      They have an online slots site that is one of the best around, with eye-catching feature images, and a welcome offer that doesn’t require you to wager the free spins a certain amount of times, you’d be foolish not to get involved with bet365 if you’re looking for the best online slots sites out there.

      Best Real Money Slots

      There are thousands of different real money slots that are available to punters across the country, which will mean that you’re spoilt for choice when it comes to choosing the best game for you. There is likely an additional thrill to playing real money slots, as you can potentially win some money, but it’s hugely important to only wager funds you can afford to lose and to gamble responsibly. Below, we’ve listed some of the best real money slots.

      • Age of the Gods – God Of Storms
      • Starburst
      • King Blitz
      • Epic Ape
      • Egyptian Emeralds
      • Buffalo Blitz
      • Lucky Emeralds
      • Shamrock Reels
      • Kingdoms Rise – Captain’s Treasure
      • Storms Of Ice

      All of the real money slots listed above have plenty of positives to shout about, from different stakes being available to customers, to the eye-catching images and animations involved in the games. There are also different jackpots available with each game, which is certain to tempt punters into getting involved with them. It’s worth remembering that not all of the games listed above will be available with all slots sites and bookmakers.

      Online slot sites will often be looking to provide you with the best range of games when it comes to real money slots, and if they can back that up with a great 1st deposit bonus included in their welcome offers, then that specific operator could be the one for you. If they can offer you free spins to play on some of the best slot games out there too. Then they’re likely to be one of the more popular slot sites to use on a more regular basis if you find yourself enjoying your time playing slot games.

      Best Slots SitesExplaining RTP

      One thing you should certainly look out for when choosing the best slot game for you with your chosen casino site or bookmaker, is the games payout percentage. This is also known as the RTP (Return to Player).

      Return to Player is the amount of money that is paid out per £1 that is wagered. So, if you put £1 into a slot machine with a 95% RTP, then you can expect to get 95p of that £1 back.

      However, this isn’t always going to happen of course, as variance comes into play. Otherwise, you’d be having players playing regularly and not losing too much of their budget. Slots sites will be looking to make money themselves, so variance always comes into play. Players can win potentially sizeable amounts of money on slot sites if they’re lucky enough, but they can also lose hefty amounts if they don’t gamble responsibly.

      As a player, you’re going to want to look out for online slots that have the highest RTP out there. You’ll still be expected to lose money in the long run, both the casino edge will be less severe with higher RTPs.

      However, it is worth noting that some slot games with a lower RTP aren’t necessarily poor games to play, as they could have a different style compared to some online slot games that have a higher RTP.

      Playing online slots can be fun if you bet within your limits, but it’s important that you remember to play responsibly, and seek relevant help if you ever find your gambling habits are getting out of hand. You should also keep in mind that there aren’t ever any guarantees that you’ll win money whilst using any of the gambling sites in the UK, and we can only emphasise the importance of reading through the terms and conditions of each offer that is promoted on our site, as well as taking into account the best slot sites that are suited to you.

      There have been lots of huge wins on slots with the biggest reportedly being £39.7 million. This was done on a slot machine called Megabucks.

      The online casino with the best promotions typically changes month-by-month, as new offers come in and change across online casino sites constantly. Currently, we rank Grosvenor Casino as our best slot site, with them having good promotions and a wide variety of slots to play on.

      At the time of writing, casino sites like bet365 Casino, BetVictor and Jackpot City are seen to be paying out the most in the UK at this current time, with their RTPs around 96-98%

      Slots like Mega Joker, Ugga Bugga and Book of 99% are seen as some of the best slot games to win money as they have a 99% RTP,

      Slot Machine wins are completely random, with outcomes of online slots determined by a Random Number Generator. This generator will select groups of numbers to decide which symbols are selected and this will then produce a winning or losing decision/outcome.