As playing online slots for real money becomes more popular, we’re seeing more titles being released each year. To help you understand exactly why slots remain the go-to game for many players we’ve put together a comprehensive guide to the best slots in the UK. 

So, if you’re interested in learning about the best titles, which sites have the most to offer, and how you can increase your odds of winning then you’re in the right place!

The Top UK Real Money Slots Casinos For July 2024

100% Bonus Up To £50 + 100 Free Spins

100% Bonus Up To £50 + 100 Free Spins

  • Classic sportsbook with casino
  • VIP program
  • Extensive live casino offering
9.8
5 Stars Hey Spin UK
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NO CODE REQUIRED
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.

20 Free Spins Upon 1st Deposit With No Wagering

20 Free Spins Upon 1st Deposit With No Wagering

  • Varied promotion program
  • Live casino focus
  • Live Sic Bo
9.8
5 Stars Magic Red UK
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18+. Terms and Conditions Apply. Available only on Big Bass Bonanza game. Min. Deposit £10. Offer valid for 24 hrs. No wagering is required. See full terms here.

Up to 50 free spins on first deposit

Up to 50 free spins on first deposit

  • Loyalty program with OJOPlus
  • Special offers daily
  • No minimum withdrawals
9.8
5 Stars PlayOjo UK
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NO CODE REQUIRED
This offer is only available for first time depositors. Min deposit is £10. 50 Free Spins on Book of Dead. Spin Value: £0.10. After your first deposit you may claim your 30 Extra Free Spins by visiting the Kicker Section. No min withdrawal. This offer cannot be used in conjunction with any other offer. This offer is only available for specific players that have been selected by PlayOJO. If you have arrived on this page not via the designated offer via PlayOJO you will not be eligible for the offer. OJO’s Rewards and Game Play policy applies. Read more.

Up to £100 + 150 free spins

Up to £100 + 150 free spins

  • Offers scratch cards
  • Extensive game catalog
  • Good mobile integration
9.7
5 Stars Casiplay UK
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18+. New players only. Welcome pagage split over 4 deposits. Min £20. Wagering requirement: 35x. Spins are credited in specific games. Spins expire after 24 hours. Promotion available for 72 hours. T&C apply.

100% Up To £100 + always 10% cashback on losses

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  • Sportsbetting offering tailored to UK punters
  • Offers Slingo
  • Has casual games like yatzee and pong
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5 Stars All British Casino UK
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Deposit £20 get and play with £50 

Deposit £20 get and play with £50 

  • Large number of Asian handicap betting markets
  • Vast experience in the industry
  • Generous welcome offer & ongoing promotions
9.6
5 Stars Grosvernor UK
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  • Great and easy to use lobby.
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  • Games selection from the are from the best providers in the world.
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  • Cashout and early settlement
  • Good live casino offering
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  • Attractive and various types of bonuses
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  • Generous welcome package
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Show More Offers+

Best Real Money Slots in the UK

With thousands of the best online slots for real money available in the UK, it can feel like a daunting experience trying to pick one! So we’ve put together our top 10 list, featuring some of the best games in their particular genres.

Rank Slot Game Provider RTP Paylines Casino
1 Blood Suckers NetEnt 98% 25 RegalWins
2 Hades River of Souls Fantasma 96.56% 10 Betiton
3 Sweet Bonanza Pragmatic Play 96.48% 20 HeySpin
4 Gates of Olympus Pragmatic Play 96.5% 20 PlayOJO
5 Egyptian Rebirth 2 Spinomenal 96.3% 82 HeySpin
6 Book of Dead Play’n Go 96.21% 10 Casiplay
7 Fishin’ Frenzy Blueprint 96.12% 10 Pokerstars
8 Buffalo King Pragmatic Play 96.06% 4096 All British Casino
9 Starburst NetEnt 96.01% 10 HeySpin
10 Gonzo’s Quest NetEnt 96% 20 Grosvenor Casino

A Closer Look at the Best Online Slots For Real Money

Just like fingerprints, no two slots are the same, so it’s time now for a more in-depth look at our top 10, to help you pick your favourites.

1. Blood Suckers (RTP: 98%)

Best Online Slots UK Blood Suckers

The horror genre has always been a popular inspiration for online slots in the UK and if you’re looking to get your teeth into one of the best Dracula-themed games out there then Blood Suckers could be the title for you! Blood Suckers works on the commonly-used 3×5 grid, with 25 paylines and a 98% RTP that is among the best we have seen.

The game visuals are suitably creepy and Blood Suckers is part of a growing number of online slots with bonus features aplenty! The features that can help you vanquish the vampires are a free spins bonus round and a vampire-slaying bonus round too.

2. Hades River of Souls (RTP: 96.56%)

Best UK Online Slots Hades River of Souls

Greek mythology is also fertile ground when it comes to the cultivation of the best online slots for real money in the UK and few titles have packed in more features and bonuses than Hades River of Souls. Just like Sweet Bonanza, the primary game mechanism is the tumble feature, but this time, wild symbols may be waiting above the main reels to drop down and substitute for other game symbols to help make winning combinations.

The fun doesn’t end there though as any wild symbols that drop onto the main reels will increase the multiplier and could increase the total winnings of the entire spin. Furthermore, there is also a free spins feature and the “Skull of Charon” bonus, where a crafty green skull appears, removes itself and between 2 and 10 random symbols from the reels and sets an avalanche in motion that could lead to some profitable combinations!

3. Sweet Bonanza (RTP: 96.48%)

Best UK Online Slots Sweet Bonanza

Following in the footsteps of Candy Crush, one of the most popular mobile games of all time, Sweet Bonanza is also aiming to appeal to sweet-toothed punters! There are six reels, five rows and 20 paylines, along with a healthy RTP of 96.48%.

One of Sweet Bonanza’s main selling points is that their primary gameplay mechanism is the tumble feature, where symbols drop from above and once a winning combo is formed, the candies that are involved will disappear, making room for more symbols and extra chances to win. And the symbols will continue to tumble as long as winning combinations are being formed.

4. Gates of Olympus (RTP: 96.5%)

Best Online Slots UK Gates of Olympus

From the King of the Underworld we move seamlessly to Zeus, the King of all Greek Gods. Zeus features in Gates of Olympus, a 6×5 slot with 20 paylines. And we love the fact that there are no confusing winlines to worry about, as symbols come tumbling down and simply pay out if at least eight appear on screen.

And when symbols are matched they disappear, with more cascadling down to increase the chances of multiple payouts. Zeus also comes bearing gifts occasionally, in the form of multipliers that can increase your treasure haul by up to 500%. Furthermore, if four of Zeus’ scatter symbols drop, a free spins feature will be unlocked

5. Egyptian Rebirth 2 (RTP: 96.3%)

Best Online Slots UK Egyptian Rebirth 2

Spinomenal’s sequel to their 2015 Egyptian-themed title improves on its predecessor in numerous ways, with better graphics, more compelling music and increased features. Egyptian Rebirth 2 retains the 3×5 format of the first game but offers 82 paylines as opposed to 25.

This game is one of the top slot games for real money that is packed with special features, including two different wild characters, as well as mystery symbols that turn into random symbols. In addition, there are free spins and bonus symbols that will unlock more goodies when three of the same type appear on the screen at once.

6. Book of Dead (RTP: 96.21%)

Best Online Slots UK Book of Dead

Rich Wilde and the Book of Dead, to give this game its full title, is one of the best-known slots for real money out there and one of the jewels in the crown of game provider Play’n Go. You can follow in the footsteps of the game’s eponymous hero by spinning the reels and hoping to hit some tomb scatter symbols, which not only act as wild symbols but when three appear at the same time they will unlock the free spins bonus.

And it’s here that Book of Dead’s USP comes into play, which is the expanding symbol. Before the Free Spin sequence begins, an ordinary symbol is randomly chosen to expand and cover all three positions on its reel at various points, unlocking even higher prizes. And you will even get the chance to gamble your free spin winnings to potentially double, or even quadruple them. 

7. Fishin’ Frenzy (RTP: 96.12%)

Best Online Slots UK Fishin Frenzy

Despite having been released in 2017, which is a lifetime ago in video slots terms, Fishin’ Frenzy has remained hugely popular to this day. Perhaps the key to Fishin’ Frenzy’s enduring popularity is its engaging nautical visuals and general simplicity, with no complicated bonuses or mini-games to worry about. 

The only real bonus that is available is a free spins round if you can match three scatter symbols. Up to 20 free spins are available, with the extra bonus that a fisherman in view “catches” all the fish on the reels at that time and nets the values on their tags. And the bigger the fish, the higher the prize!

8. Buffalo King (RTP: 96.06%)

Best Online Slots UK Buffalo King

If the amount of paylines on offer is a big selling point for you then Pragmatic Play’s 4×6, 4096 ways to win Buffalo King will certainly cause a stampede of excitement! There is plenty of style to go with the substance though as the graphics are excellent, particularly the titular Buffalo and his animal cohorts.

The buffalo also makes an appearance on the bonus symbol, with three in view awarding the player eight free spins, with even more spins on offer for four, five or even six symbols appearing on screen.

9. Starburst (RTP: 96.01%)

Best Online Slots UK Starburst

Don’t be fooled by its relatively low position on our list as the Netent casino game Starbust is bona fide slots royalty and quite simply one of the most popular games out there. And this is reflected by the fact that if you receive some free spins as part of a welcome offer at the best online casinos, chances are they will be for Starburst.

So what keeps us playing a video slot that is now over 10 years old? For starters, the graphics hold up well, even today, with nicely formed gems and arcade-like light and sound effects. And bonus features that include expanding wilds and respins don’t hurt either!

10. Gonzo’s Quest (RTP: 96%)

Best Online Slots UK Gonzo's Quest

One of the best character-led online slots for real money out there is certainly Gonzo’s Quest, partly due to the fact that the cascading stone masks make it stand out, as does the antics of Gonzo himself, who is usually found at the side of the screen but will move from his usual spot to celebrate any big wins with you.

And those big wins trigger in a number of ways, starting with the avalanche reels feature, where winning symbols will be destroyed and replaced by new ones cascading down that may unlock further wins. There are also wilds and scatters which can also trigger big wins to get both the players and Gonzo himself excited!

The 10 Best Online Slots Casinos in the UK 2024 Ranked

We’re not just focusing on real money slots online themselves, but the best slots online casinos too. However, before we go into more detail, here are the ten sites that made the cut!

  1. HeySpin – Ultimate Casino for Real Money Slots
  2. Magic Red – Offers No Wagering Free Spins
  3. PlayOJO – A Huge Selection of Popular Online Slot Games
  4. CasiPlay – Bonuses Available for Your First Four Deposits
  5. All British Casino – Offers Unlimited Reload Bonuses
  6. Grosvenor Casino – One of the Most Popular UK Slots Casinos
  7. Yeti Casino –  23 FS + 100% up to £111+77 ES
  8. Betiton – Offers an Excellent Range of Jackpot Slots & Megaways
  9. Winomania – 100% Up to £100 + 100 Bonus Spins
  10. Mr.Play – Focus on Fun, Ease of Use, Reliability, and Security

Reviews of the Top Real Money Slots Casinos Online

Here’s a more in-depth look at our top five, including a handy at-a-glance list of what we like about them and perhaps more importantly, what we don’t!

1. HeySpin – Ultimate Casino for Real Money Slots

One of the newest online slots casinos is also one of the best, as Heyspin offers a superb gaming experience. This is no surprise though as Aspire Global powers the platform, a leading provider of iGaming solutions that works with some of the biggest names in betting such as Betfair and 888Casino.

Heyspin is a trustworthy online casino with a UK Gambling Commission license that offers a huge range of video slot machines by all the most well-known providers such as Pragmatic Play, Netent, Spinomenal, and Evolution Gaming. All of the different genres such as Greek mythology, horror, and animals are represented and we also found 10 jackpot games at the time of writing, with even bigger cash prizes on offer.

What impressed us too was that all the video slots are really easy to find, as you can search alphabetically, by provider, or simply type the name of your chosen game into the search bar at the top of the home page. 

There is also a welcome deal exclusively for slots players and a couple of existing customer offers that can net players a share of huge prize pools just for playing one of the participating titles. 

Pros

 

  • Range of video slots including jackpot games
  • New and existing customer slots offers
  • Trending games search feature
  • Superb selection of deposit options
  • Simple and effective site layout

Cons

 

  • No mobile slots app

If you’re not interested in sports betting then an online casino site such as PlayOJO, which focuses exclusively on slots and casino games, is certainly a very attractive proposition. And quite frankly, we don’t even know where to start when it comes to their site features and bonus deals!

So, we’ll begin with the site itself, which looks superb and is really easy to navigate. There are thousands of slots on offer including progressive slots, Megaways, new slots and old favourites such as Starburst. Video slots are categorised on the site into popular slots, new slots, exclusive games and Megaways. Or you can just search for individual slots at the top of the home page.

Best Online Slots UK PlayOJO

Where PlayOJO really excels though is when it comes to extra bonuses and features. There’s an eye-catching welcome offer that rewards new players with 50 free spins and no wagering requirements attached to your winnings. Existing customers can benefit from a host of deals too, including daily tournaments with cash prizes and exclusive promotions that change every 24 hours.

The PlayOJO rewards club gives you cashback every time you play online video slots which you can transfer to your main balance and spend as you please. And as you rise through the levels you will also receive free spins on the OJO Wheel, with more free cash up for grabs.

Pros

 

  • No wagering welcome bonus available
  • Eye-catching and well-laid-out site
  • Blog with content related to online slots 
  • Offers an excellent “Club OJO” VIP club
  • “Hot or Cold” feature shows which slots are paying out more than they’re taking

Cons

 

  • The sheer amount of special features could get confusing for less experienced punters

3. Casiplay – Bonuses Available for Your First Four Deposits

Welcome bonuses are available at virtually all of the betting sites you will come across but reload bonuses linked to subsequent deposits are much rarer. Not at Casiplay though, where your first four deposits will be rewarded with bonuses totalling £100 and 150 extra spins.

In addition, at the time of writing, there are two promotions run in conjunction with Pragmatic Play, one of the best game providers in the business. One is a tournament where you can win big when you rise up the ranks, while the other is a Daily Prize Drop where you can win big just for playing your favourite games.

And while promotions do come and go at Casiplay, we’ve seen more than enough from their bonus section in the past to convince us that there will always be some goodies on offer!

Best Online Slots Sites UK Casiplay

Pros:

 

  • Four deposit bonuses
  • Multiple tournaments and Prize Drops
  • Great selection of new video slots
  • Paypal deposits accepted
  • Eye-catching site design

Cons: 

 

  •  No mobile app

 

4. All British Casino – Offers Unlimited Reload Bonuses

Patriotic punters looking for online video slots will be delighted with what they find at All British Casino. And it all starts with their generous welcome bonus that will match any deposit from a new player in full up to a maximum of £100. 

Thanks to their “Marvellous Midweeks” offer, existing players can also enjoy some special bonuses when they make further deposits. And there is a permanent 10% reload bonus to enjoy too. In addition, All British Casino regularly organises tournaments and challenges that could lead to extra prizes for regular players.

All British Casino Video Slots

When it comes to the video slots themselves, the selection is huge and 21 of the best providers in the world have their games showcased at All British Casino. What particularly caught our eye was the presence of a number of Slingo games, which are a unique combination of slots and bingo. 

In addition, another feature not found at many other online casino sites is the ability to search slots by themes, such as Megaways, Movies & Shows, Music, Sport and Animals. In fact, site usability is a strong point in general, with the top casino games in various categories shown on the casino home page and the ability to search by game provider too.

Pros

 

  • Huge selection of games providers to pick from
  • Unrivalled selection of Megaway slots
  • Permanent 10% reload bonus
  • Multiple existing customer deals
  • Great site layout and usability

Cons

 

  • High wagering requirement attached to the welcome offer

5. Grosvenor – Excellent Game Variety Available on the Mobile App

Grosvenor celebrated a decade in the betting business in 2017 and their experience shines through in a polished casino offering that cements their reputation as one of the best online slots sites in the UK.

One of Grosvenor’s headline existing customer promotions is the “Match the Pairs” feature. This is a daily game where you must match all the paired symbols shown to you before 60 seconds is up. You can win free spins, bonuses, free bets, and even burger/beer vouchers.

Grosvenor Casino SIte

Grosvenor also has one of the best progressive slots jackpots offers we have seen, with four-tiered progressive jackpots available at over 20 slots.

And they also deserve an extra bonus for producing one of the best casino slots online apps we have seen, featuring excellent usability, PayPal deposits and excellent mobile slots playability.

Pros

 

  • Offers online slots tournaments every day
  • Blog packed with info about new slots & promos
  • A great range of loyalty bonuses is available
  • Daily prize drops with hundreds of cash prizes
  • Enjoy a range of  progressive slots

Cons

 

  • Desktop site colour scheme could be better

How We Rank the Best Online Slots Casinos

We’ve told you which slots online casinos have made our top 10 list but it’s equally as important to tell you how we have picked our favourites. And the answer is that we have utilised a specific set of criteria that you can use too, to pick a site that best meets your individual gaming needs.

  • Bonuses & Promotions – One of the best ways to keep existing customers coming back is by offering them bonuses and special promotions that will often reward punters with free spins or occasionally, cold, hard cash! And when it comes to tournaments and jackpot features, those prizes can be pretty hefty.
  • Game Quality – All of the sites featured on this page have hundreds, sometimes thousands of online slots for real money, so the choice is never an issue. However, game quality certainly is, so we are always looking at whether a site features the best games and also keeps refreshing its roster with new casino slots titles.
  • Other Casino Games – Many punters like to play online casino games for real money such as blackjack, poker, and roulette, alongside their slots adventure. So we always check to see what casino games are on offer at the best slots online casinos. And that includes live dealer games, game shows, scratchcards, and lotto too.
  • Payment Methods – In general, British punters are a simple bunch when it comes to payment methods and most are happy to just use their debit card, which is a payment option available at some sites. However, some may wish to use e-wallets, which are less common but still available at many sites. And we also keep an eye out for those sites that offer ApplePay deposits on their mobile apps.
  • Safety – Site safety and security is our number one priority, so we always make sure that any casino slots online site has a license from the UK Gambling Commission, which is the gold standard of regulation for real money online casinos in the UK.
  • Searchability – Allowing punters to find their preferred slots quickly and easily should be one of the most important functions of the best casino slots online providers. So we’re always on the lookout for functionality and searchability, particularly things like being able to search by provider, or subsections featuring the most popular games, for example.
  • Variety of Games – As we will outline further down this page, video slots can take many forms, and the best UK slots online betting sites should feature them all! We’re talking standard video slots, avalanches, bonus slots, Megaways, classic slots, and jackpot slots, with extra marks for sites that offer Slingo!

How Our Top 10 Real Money Online Slots Sites Compare

We’ve gone into great detail about what we consider to be five of the best online slots for real money in the UK. However, our top 10 list is rounded off by another set of excellent video slots providers. So here’s a handy rundown of the full list!

Online Slots Casino Welcome Bonus No. of Slots  Progressive Slots Megaways Mobile App
heyspin 100% Deposit Bonus up to £25 & 25 Free Spins 400+
50 Free Spins 2,000+
50% Deposit Bonus up to £50 and 40 Free Spins 400+
All British Casino UK Logo 100% bonus up to £100 1,000+
grosvenor casino Deposit £20, Play With £50 1,000+
Betiton UK Logo Get 100% up to 150€ + 50 spins 500+
regalwins 100% bonus up to £500 1,000+
100% bonus up to £200 1,400+
The Vic UK Logo 100% bonus up to £100 500+
100% bonus up to £200 and 100 Bonus Spins 2,000+

When it comes to the best overall experience for slot fans in the UK HeySpin Casino certainly takes the cake. There are hundreds of options for you to look forward to including a range of jackpots, classic titles, and video slots, all of which boast interesting themes and unique features designed to keep you entertained as you spin your way to victory.

What makes this casino even more exciting is the fact that new players have the chance to kickstart their fun with both free cash and free spins. So, the next time you’d like to spin and win at one of the UK’s top slots casinos we recommend taking a look at the selection of games available at HeySpin Casino.

How to Win Real Money Playing Online Slots

Trying to recommend winning slots strategies is a tough ask because it is purely a game of chance. You can’t utilise top tactics as you would in casino games such as blackjack and you can’t increase your odds of winning with effective research as you can in sports betting. 

However, what you can do is follow our top tips below, which may not guarantee that you will make a profit but will put you in more favourable positions to do so.

1. Manage Your Finances

Our first tip is the same no matter what form of gambling we are writing about and that is to effectively manage your finances! Work out what you can safely spend each day, week, and month. Then use daily, weekly, and monthly deposit limits at all the top online slots casinos to make sure you stick to it. 

2. Be Disciplined

Ask anyone who has played any casino game or online slots for real money and they will tell you that the hardest thing to do is to quit while you’re ahead. However, being disciplined enough to walk away when you have made a profit is crucial if you want to win real money playing online slots. 

One tactic we have found useful is having a certain profit in mind when you play slots online for real money and if you hit that magic number, you walk away and either withdraw your winnings or save it for another day.

3. Always Be in the Right Frame of Mind

Playing while you aren’t in the correct frame of mind is a surefire way to lose money. So if you’re super-tired, distracted, angry about a previous betting loss or under the influence of alcohol or drugs, we’d strongly suggest finding something to do with your time that doesn’t involve spending any money!

4. Find Low Bonus Wagering Requirements

There are some generous deals on offer at the best online casino sites but remember “All that Glitters is Not Gold”. And that’s because most of the time, any bonus funds are subject to wagering requirements that are often extremely prohibitive, such as having to wager the amount of your bonus 35 times before it can become withdrawable. So it’s worth shopping around and seeing which sites offer the most favourable turnover requirements.

5. Don’t Let Progressive Slots Jackpots Deduce You

Many online casino sites will proudly offer five, or even six-figure jackpots in order to encourage players to visit certain real slots. While we wouldn’t discourage anyone from playing jackpot games, we would recommend allocating less of your bankroll than you would normally, as your chances of winning that big prize are minimal and the extra money you have to pay per spin will eat into your bankroll over time.

As we alluded to earlier in this article, there is a huge number of slots to pick from at all the best real money online slots sites. And we have taken a deeper dive into the main types of slots below.

Standard Video Slots

A slot machine revolution took place in the 1980s, unsurprisingly starting in Las Vegas! Mechanical “One Armed Bandit” real money slot machines were joined in casinos by slots where all the action took place on a video screen. The flexibility of a computer-controlled machine meant that a huge number of new features and ways to win could be introduced, such as multiple win lines and bonus games.

Best Online Slots Narcos

Nowadays, the vast majority of online slots for real money are standard video slots with hundreds of different themes. However, they are easy to recognise as they all follow the five reels and three-row structures. Furthermore, they will all feature bonuses such as wild and scatter symbols that can unlock a myriad of bonus games.

Play Standard Video Slots at HeySpin

Avalanche Slots

Another type of video slot utilises the “Avalanche” game mechanic, where symbols fall from above into a playing grid rather than spinning into view. And the beauty of this type of gameplay is that winning symbols explode and new ones fall into place, which can potentially trigger a new win. And with each new win a multiplier increases, which will boost your winnings at the end of your winning sequence.

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Play Avalanche Slots at PlayOJO

Progressive Jackpot Slots

Playing certain slots will give players an opportunity to win huge amounts of money, as a portion of their stake is taken every spin and added to a jackpot prize pool, which is then randomly awarded to a few lucky punters! The thing to remember though is that to qualify for the progressive jackpot, you usually have to be betting at the maximum stakes per spin.

Bets Online Slots UK Rainbow Riches Jackpot

Play Progressive Jackpot Slots at All British Casino

Classic Slots

For some punters, confusing winlines that seem to make no sense just aren’t for them and they yearn for the simpler days of the three, four, or five-reel one-armed bandits with just one winning line right down the middle! As there is still a market for these old-style online slot games for real money, game developers are still making them and you can find them at many of the slots online casinos featured on this page.

Best Online Slots Classic Slot

Play Classic Slots at The Vic

Free Slots in the UK

Ironically, you don’t always have to pay to play your favourite real money online slots as many of the sites on this page, such as HeySpin and PlayOJO, will offer free demos of their most popular games. In addition, many of the game developers themselves feature demo versions of the most popular games on their own sites.

We’d certainly recommend taking advantage of no deposit free spins, as not only will it enable you to discover new slots but help you balance your bankroll too, as you can scratch that video slots itch without having to spend any of your hard-earned cash.

Keep an Eye Out for These Slots Casino Bonus Offers

Online slots no deposit deals are rare but that’s not to say there aren’t a great number of new and existing customer offers out there. And they can also take many forms. So, here is a list of the main slots casino bonus offers that you are likely to encounter.

Free Spins

The simplest way for online slots providers to reward their new and existing customers is with free spins. Generally, these spins will be limited to one particular game, with Starburst being a favourite! One of the biggest advantages of free spins deals is that they are usually free from any wagering requirements, so whatever you win is yours to keep and withdraw immediately if you want to.

Cashback Deals

Online casino cashback deals work on two main premises. The first is giving players back a percentage of their losses every week or rewarding them for spending money whether their bets win or lose. Some cashback deals will come with wagering requirements but others will head straight to your cash balance.

Reload Bonuses

Another form of loyalty bonus is the reload deal, where an online slots site matches a player’s deposit to a certain degree, which is usually 100% but can be less, or even more. These types of bonuses are more lucrative but almost always come with wagering requirements, such as having to bet 20 times the amount of your bonus funds before they convert into withdrawable cash.

Mobile Slots vs Desktop Slots

OJO Mobile Casino Slots We are a nation of smartphone lovers here in the UK. Advances in technology have led to pretty much every aspect of our lives being controlled from the palm of our hands! And of course, betting on slots is no different as even the sites that don’t have a dedicated UK casino app will have a mobile version of their site that is specially formatted for the portrait phone screen.

The main advantage of mobile slots is that you can play them wherever you happen to be. However, looking at video slots on a smaller screen is probably not the optimum way to view them, especially when there’s lots of movement.

In addition, if you’re relying on 4G rather than a reliable internet connection then you may experience a signal dropout, which is frustrating at the best of times but even more so when you’re interrupted mid-spin!

And so it follows that the main advantages of playing desktop slots are that you can enjoy them on a much larger screen with a more stable internet connection.

Best Mobile Slots Betting Apps

If you’re looking for an exciting mobile slots experience then we recommend taking a look at the selection available at the following top slots casino apps.

  1. PlayOJO – 50 Free Spins
  2. Spin Rio – 100% Bonus up to £200 and 100 Bonus Spins
  3. Grosvenor Casino – Deposit £20, Play With £50

Slot Machine Games Developers

Online casinos very rarely create their own online slots for real money. Instead, they lease their titles from a growing range of slot machine developers. So here is a summary of the most popular and well-known game providers with slots that are available in the UK.

Playtech

Playtech is the world’s largest supplier of online gaming and sports betting software and it’ll be hard to find any online casino that isn’t carrying one of their titles. Formed over 20 years ago, Playtech is probably best-known today for their “Age Of The Gods” slots series.

Pragmatic Play

When it comes to their slots game portfolio, it’s hard to beat Pragmatic Play, who have created over 250 games that are available in 33 languages. So it’s no surprise to find some of the UK’s most popular titles, such as Sweet Bonanza and Gates of Olympus, are under the Pragmatic Play umbrella.

NetEnt

When you’ve created both Starburst and Gonzo’s Quest it would be tempting to rest on your laurels but that is not the NetEnt way, as is proved by the imminent release of a Megaways version of the game with the highest RTP in our top 10 list, Blood Suckers. NetEnt also makes some of the tastiest food-themed online slots for real money out there, including Berry Burst, Cupcakes, and the upcoming Milk Shake XXXtreme.

Fantasma

One of the newest game developers on the block is Fantasma, whose USP is to bring the gaming experience into the world of gambling. And that’s certainly true when you look at some of their marquee titles such as Alice in Adventureland and Wins of Nautilus. Fantasma is also behind the unique cascading gameplay of one of the top games in our top 10 list, Hades River of Souls.

The Best High RTP Slots to Play Online Today

Before any online slots for real money hit the market they will be independently tested for fairness and quality, which is a job we would certainly like to have! And one of the key tests is to determine a slot’s RTP, which stands for “Return to Player”. RTP is an indication of how generous a slots game is, with the RTP figure given as a percentage. RTPs are almost always in the mid to late 90s and the high RTP slots will be around the 97% mark.

To explain further, if online slots for real money have a 96% RTP, it technically means that for every £100 you spend, you would receive £96 back. However, we all know that the volatility of online slots in the UK means you could quite easily lose £200 without making any profit whatsoever, so RTP is more an indication of longer-term prospects. 

One thing to note is that the UK government is introducing a new £2 max stake for online slot game bets if you’re under 25 years old. The limit rises to £5 for anyone who doesn’t fall into this bracket.

Best Online Slots UK Thrones of Persia

For example, if you spent a million pounds on an RTP 96% slot you would more than likely have around £960,000 when all was said and done. And while we appreciate that this is not a realistic scenario, RTPs are definitely a useful tool for judging slots and you should certainly be avoiding anything below the 96% mark.

Many online casinos will share the RTP of their slots games,  but even if they don’t a quick search online should allow you to uncover that information relatively quickly. And here are three of the highest RTP slots games we have found:

Slot  Game Provider RTP Paylines Casino
Blood Suckers NetEnt 98.00% 25 RegalWins
Sweet Bonanza Pragmatic Play 96.48% 20 HeySpin
Hades River of Souls Fantasma 96.56% 10 Betiton
Starburst Netent 96.01% 10 CasiPlay
Book of Halloween Inspired Gaming 96.23% 10 All British Casino
Book of Ra Novomatic 96.00% 9 Grosvenor Casino
Fire Joker Play ‘n GO 96.15% 5 Betiton
Big Bass Splash Pragmatic Play 96.71% 10 PokerStars
Gold Mine Stacks Nailed It! 96.00% 20 The Vic
Shamrock Miner Play ‘n GO 96.29% 27 PlayOJO

Benefits of New Casino Slots

Casino sites are full of new slots and we’d highly recommend trying them out for a number of reasons. The first is obviously that you will open yourself to new games, features, and bonuses that you can enjoy in the future. Furthermore, advances in technology mean that slots are becoming even more immersive every year.

In addition, you might find variations on a theme such as the Hades River of Souls video slots game, which improves on the avalanche mechanic by adding a further three rows of wilds on top. 

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What We Have to Say About Online Slots in the UK

Now that we’ve reached the end of our guide to the best slots games, you should now have an idea of which are the best online slots in the UK and where the best places are to play them! In addition, we have given you some insights into how we judge the best online slots casinos, so you can apply those same criteria yourself and find a site that best meets your unique betting needs. And of course, we wish you the best of luck!

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