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The Best Online Slots in the UK

Author: Corey Miller, 14. February 2024

Ranking the online slots available for British players turned out to be a surprisingly difficult task. We had to not only consider the quality and the features of the hundreds upon hundreds of fruit machines out there but also whether or not they are offered by reputable UK-licensed sites which have juicy bonus offers. But after months of research, we managed to discover which are the best slot sites and which are the top slots you can play there. Continue reading to discover what to look for in an online slot destination or simply click on the secure link button that will take you to the casino!

NetEnt Casinos
Casino Secure Links Highlights Top Slots
111/889 netent slots One-of-a-kind slot collection 37 other games Jack and the Beanstalk, Finn and the Swirly Spin, Mega Fortune
888 casino Review 83/196 netent slots Huge games collection 26 other games Gonzo’s Quest, Jack Hammer, Dracula
72/736 netent slots Many exciting jackpot slots 77 other games Starburst, Vikings, Dead or Alive
Microgaming Casinos
Casino Secure Links Highlights Top Slots
32Red Review 229/455 microgaming slots Special bonus offers for slots 64 other games ThunderStruck II Jurassic Park Immortal Romance
150/889 microgaming slots One-of-a-kind slot collection 37 other games Game of Thrones Break da Bank Again Forbidden Throne
121/736 microgaming slots Many exciting jackpot slots 77 other games Avalon Bridesmaids 108 Heroes
Novomatic Casinos
Casino Secure Links Highlights Top Slots
107/1165 novomatic slots Reputable online gaming portal 59 other games Reel King Book of Ra Deluxe Columbus Deluxe
60/582 novomatic slots Special bonus offers and promotions 74 other games Always Hot Deluxe Fruits’n Sevens Chicago
10/876 novomatic slots Great mobile software 30 other games Sizzling Hot Deluxe Dolphins Pearl Deluxe Plenty on Twenty
4/736 novomatic slots Many exciting jackpot slots 77 other games Lucky Lady’s Charm deluxe Lord of the Ocean Pharaoh’s Ring
Playtech Casinos
Casino Secure Links Highlights Top Slots
297 playtech slots Regular bonuses and daily deals 76 other games The Dark Knight Anaconda Wild Age of the Gods: Furious 4
193/450 playtech slots Huge collection of mobile games 101 other games Frankie Dettori’s Magic Seven Jackpot White King Vikings Mania

Before we go into detail into what makes these particular games the best, we want to make sure you know that all the slots we recommend can be found at websites that are licensed by the United Kingdom Gambling Commission: the only regulatory body that can authorise online casinos to offer their services on the UK market. This means that no matter which of the casinos we recommend you choose, you will always be guaranteed a fair gaming experience and 100% safety of your personal information and money.

Online Slots Best Bonus

There are of course many exciting slots other than the ones in our ranking, but most of them are not offered by top UK slot sites or are offered by casinos that don’t have many bonus opportunities. After all, even though having a great bonus to play with doesn’t speak directly about the quality of the slot game, it greatly enhances the experience of playing on the Internet and gives you better chances of ending up with a gain. Check out the top welcome packages that you can claim online as a UK player in the table below. If you’re interested in a particular offer you can also check out our in-depth reviews of the best online slot sites for more details.

Casino Bonus Games Safety Compatibility Claim Your Bonus Terms and Conditions
100% up to £100 + 88 Free Spins 196 unique slots
eCogra, McAfee
iOS, Android
Get Bonus! Full T&Cs apply. No Deposit Offer: New players with valid mobile number only • Claim in 48 hrs • 14 day expiry • Valid for selected games • Pre-1st deposit only: FS voucher winnings is uncapped, bonus wins & max redeemable amount for non-funded players capped at £100, excl. JP wins • Wager Bonus x1 - req. contributions vary by game • Bonus expires in 90 days • Deposit Offer: 1st time depositor at 888casino only • £20 min deposit • Claim in 48 hrs • Valid for selected games • Bonus wins capped at £500, excl. JP wins • Pre-1st deposit only: Bonus wins & max redeemable amount capped at £100, excl. JP wins • 30x wagering – req. vary by game • Bonus expires in 90 days • Payment method & country restrictions apply • Withdrawal terms, No Deposit Offer terms & Deposit Bonus Offer terms apply.
80 Free Spins Impressive selection of 889 slots
iTechLabs, SSL Protocol
iOS, Android
Get Bonus! Full T&Cs Apply. For Every £1 you deposit, 1 free spin will be credited. Up to 50 free spins on Book of Dead. Min. deposit is £10. Offer only available for first time depositors. After your first deposit you may claim an additional 30 free spins in the Kicker section. Extra free spins must be claimed within 3 days. Game: Rich Wilde and Book of Dead | Spin Value: £0.10. OJO’s Rewards and Game Play policy applies.
Wager £10, Get £30 + 100 Free Spins 736 slot from top developers
Thawte, SSL Protocol
iOS, Android
Get Bonus! Full T&Cs Apply. 18+ New customers only. Deposit, opt in and wager £10 on selected games within 7 days of opening new account. Get 3 x £10 bonuses for selected games with up to 40x wagering plus 100 Free Spins. Bonuses expire in 7 days. Max redeemable from bonuses £750. 100 Free Spins have no wagering and expire in 7 days. Card payments only. T&C's Apply | begambleaware.org | Please Gamble Responsibly.
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Best Free Spins

Some casinos prefer to offer welcome bonuses that consist solely of free spins. Such operators are perfect for slot lovers, as this bonus cannot be used on any other type of casino game. Most free spins offers include a bonus sum alongside the spins, so you can also take advantage of playing other games at the casino, apart from slots. Such kind of offers are preferable as they give you freedom, but if slots are your heart’s desire and you have no interest in other games, then you would be just fine with a free spins offer. In the following paragraphs, we will explain what exactly free spins are and how you can win from them. So, keep reading!

We know how hard it is for players to choose between the many casinos available online and we would therefore like to offer our help. In the table down below, we have given you a list of the best casinos with free spins available on the UK market:

Casinos with Free Spins Free Spins Best Slot Welcome Bonus Wagering Requirements Play with Free Spins Terms and Conditions
88 Free Spins Starburst £100 30x Playthrough Spin it Here! Full T&Cs apply. No Deposit Offer: New players with valid mobile number only • Claim in 48 hrs • 14 day expiry • Valid for selected games • Pre-1st deposit only: FS voucher winnings is uncapped, bonus wins & max redeemable amount for non-funded players capped at £100, excl. JP wins • Wager Bonus x1 - req. contributions vary by game • Bonus expires in 90 days • Deposit Offer: 1st time depositor at 888casino only • £20 min deposit • Claim in 48 hrs • Valid for selected games • Bonus wins capped at £500, excl. JP wins • Pre-1st deposit only: Bonus wins & max redeemable amount capped at £100, excl. JP wins • 30x wagering – req. vary by game • Bonus expires in 90 days • Payment method & country restrictions apply • Withdrawal terms, No Deposit Offer terms & Deposit Bonus Offer terms apply.
25 Starburst £300 35x playthrough Spin it Here! Full T&Cs Apply. 18+. New players only. One bonus offer per player. Minimum deposit £20. Max bonus bet is £5. Bonus spins on selected games only and must be used within 72 hours. Bonus funds must be used within 30 days otherwise any unused bonus shall be removed. Bonus funds are 100% match up to £300 on your 1st deposit. Bonus funds are separate to Cash funds, and are subject to 35x wagering the total bonus & cash. Only bonus funds contribute towards any wagering requirements. Terms apply. BeGambleAware.org.
100 Fruity Friends £50 35x playthrough Spin it Here! Full T&Cs Apply. New depositing players only. Min. deposit: 10 GBP. Max. bonus: 200 GBP. Offer valid on first deposit. Offer only applies to new players. Spins are given as follows: 20 spins and 100% bonus upon first deposit (min 10 GBP), another 40 spins are given upon deposit on the second day after the first deposit (min 20 GBP), and an additional 40 spins are given upon deposit on the third day (min 20 GBP). Unused free spins expire 24hrs after being issued. Spins are on several of our best paying games. Winnings won with spins that require a deposit, have to be wagered 35x. Bonuses that require a deposit, have to be wagered 35x. Bets on different games contribute differently to the compliance of the wagering requirements.
Up to 500 Free Spins / Code: NBWELCOME500 Age of the Gods 50x playthrough Spin it Here! Full T&Cs Apply. New players, £10+ deposit, no e-wallets/prepaid cards, 50x wagering on Vegas Free Spins, 40x wagering on Casino Free Spins. T&Cs apply
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What are free spins?

A free spin is every spin of the reel on a slot game for which you must not pay. If a part of your bonus consists of 200 free spins, that would mean that you can spin the reel 200 times without paying anything and all that you win would go to your bankroll.

Can you win from free spins?

Yes, you can absolutely win from free spins. One way to do so is to claim a welcome bonus, which includes free spins and then use them on slot games at the casino. Another way to win money from free spins is to win a bonus round of spins while playing a slot game. Both methods work best if you have some sort of a strategy for playing.

Slot Casinos with Real Money

If you have practiced on demo slots enough and you now wish to play for real money, you are definitely going to need to consider a few important factors before choosing a casino. Firstly, you need to always look for a secure and safe operator. You can make sure a casino is safe when you find that it has the needed licenses and certificates to function legally in your country. For the UK, such certificates include the UK Gambling Commission and the Malta Gambling Authority. Other important factors to consider are the game catalogue – does the casino offer various games from several software providers?

Furthermore, the welcome bonus is always a great advantage of an operator. But you must check the bonus and conditions of every offer beforehand. The main conditions to look for are the validity period, the wagering requirements, the accepted payment methods, etc. But to make it easier for our readers, we have handpicked the very best online operators. Here, you can discover the top casinos with real money slots on the UK market:

Casinos with Real Money Slots Number of Slots Welcome Bonus Exclusive Free Spins Bonus Top Software Secure Link Terms and Conditions
889 no wager spins 80 Microgaming, NetEnt Play Here! Full T&Cs Apply. For Every £1 you deposit, 1 free spin will be credited. Up to 50 free spins on Book of Dead. Min. deposit is £10. Offer only available for first time depositors. After your first deposit you may claim an additional 30 free spins in the Kicker section. Extra free spins must be claimed within 3 days. Game: Rich Wilde and Book of Dead | Spin Value: £0.10. OJO’s Rewards and Game Play policy applies.
541 £50 100 NetEnt Play Here! Full T&Cs Apply. New depositing players only. Min. deposit: 10 GBP. Max. bonus: 200 GBP. Offer valid on first deposit. Offer only applies to new players. Spins are given as follows: 20 spins and 100% bonus upon first deposit (min 10 GBP), another 40 spins are given upon deposit on the second day after the first deposit (min 20 GBP), and an additional 40 spins are given upon deposit on the third day (min 20 GBP). Unused free spins expire 24hrs after being issued. Spins are on several of our best paying games. Winnings won with spins that require a deposit, have to be wagered 35x. Bonuses that require a deposit, have to be wagered 35x. Bets on different games contribute differently to the compliance of the wagering requirements.
297 400% up to £40 on Big Bass Bonanza no Playtech Play Here! Full T&Cs Apply. 18+. Play Safe. New customers using Promo code BASS40 only. Opt in required. 1x per customer. Min. £10 deposit and stake on Big Bass Bonanza only. Max. bonus £40 with 35x wagering to use on Big Bass Bonanza only. Bonus expires 24 hours from issue. Eligibility rules, game, location, currency, payment-method restrictions and terms and conditions apply. www.begambleaware.org #Ad
229 150% Up to £150 no Microgaming Play Here! Full T&Cs Apply. New accounts only. Min. £10 deposit, debit card and PayPal only. 50x wagering, game contributions vary. Max. stake applies. 7-day expiry. 18+. BeGambleAware.org.
196 £100 no NetEnt, Playtech Play Here! Full T&Cs apply. No Deposit Offer: New players with valid mobile number only • Claim in 48 hrs • 14 day expiry • Valid for selected games • Pre-1st deposit only: FS voucher winnings is uncapped, bonus wins & max redeemable amount for non-funded players capped at £100, excl. JP wins • Wager Bonus x1 - req. contributions vary by game • Bonus expires in 90 days • Deposit Offer: 1st time depositor at 888casino only • £20 min deposit • Claim in 48 hrs • Valid for selected games • Bonus wins capped at £500, excl. JP wins • Pre-1st deposit only: Bonus wins & max redeemable amount capped at £100, excl. JP wins • 30x wagering – req. vary by game • Bonus expires in 90 days • Payment method & country restrictions apply • Withdrawal terms, No Deposit Offer terms & Deposit Bonus Offer terms apply.
193 Bet £10 Get £30 no Playtech Play Here! Full T&Cs Apply. 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. BeGambleAware.org
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Can you play slots online for real money?

Yes, you can. There are numerous reputable online casinos, which offer a great selection of slot games you can play for real money. If you are a newbie and you are just starting to play slots for real money look for games, where you can bet small amounts.

Can you really win money on slot apps?

There are many gamblers, who win extra cash from playing slots on their mobiles. But if you are unsure and want to test this fact, you can always choose an app, which has a free spins bonus and take a test run on a game to see what happens.

The Best New Online Slots

We have something little for every type of gambler on our website, especially for the experienced. If you are a “professional” slot player with hundreds of titles behind your back, you will probably not be too captured by the most popular slot games in the industry. What you are looking for are the newest and hottest top slots that have entered the market. With a little bit of research, we have managed to find the newest and best slots, which will become a total hit in 2024. Here, you can find the best new slots for 2024, which their provider is and what the payout and variance rates are.

New Slot Release Date Software Provider Payout Variance Available At
Golden Grimoire 22.02.2019 NetEnt 96.44% Low-Medium BetVictor
Shogun of Time 17.02.2019 JustForTheWin 96.02% Medium PlayOJO
Gemtastic 09.1.2019 Red Tiger 96.07% High Grand Ivy
Ted Pub Fruit Series 26.1.2019 Blueprint 96.57% Medium All British Casino
Gorilla Go Wilder 27.2.2019 NextGen 97.04% Medium All British Casino
Big Bear 11.01.2019 Playtech 95.48% Medium 888casino
Treasure Horse 11.01.2019 Pragmatic Play 96.52% Medium-high NetBet
Thor’s Lightning 14.02.2019 Red Tiger 96.08% Medium Ladbrokes
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New Slots 2024

If you have been on the search for the top new slots for 2024, you should look no further. In the next table we have presented the best slot games, which were released in 2018. We will rank them according to their payout rate and number of paylines and would also provide info on who the software developer is, the exact release date and which safe online casino offers the game in its catalogue. One such game is Double Stacks. It was released on 24.9.2018 by Netent and has a payout rate of 96.1%. The theme of this slot includes fruits, sevens and bars, which produce wins of up to 1,000x the stake on a single spin. What’s not to love! One tiny disadvantage of this slot is the scarce number of paylines – just 10.

Another game, which also hit the online casinos in 2018 was Age of the Gods: Mighty Midas. The slot was released on 21.12.2018 by Playtech and has a payout rate of 96.34%. Playtech has a history of boasting progressive jackpot slots based on Marvel superheroes and they continue their legacy. With a majestic and royal theme and numerous bonus features, this slot has quickly become the newest player-favourite.

Slots Release Date Software Provider Payout Paylines Safe Online Casino
Frankie Dettori: Sporting Legends 29.1.2018 Playtech 93.01% 25 Ladbrokes
Asgardian Stones 19.2.2018 NetEnt 96.31% 20 888 Casino
Extra Chilli 04.4.2018 Big Time Gaming 96.82% 117649 Fun Casino
Book of Ra Magic 08.5.2018 Novomatic 95.03% 10 All British Casino
DaVinci Diamonds Masterwork 28.8.2018 IGT 96.37% 30 NetBet
Double Stacks 24.9.2018 NetEnt 96.1% 10 PlayOJO
Vikings 22.11.2018 NetEnt 96.05% 243 Ladbrokes
Age of the Gods: Mighty Midas 21.12.2018 Playtech 96.34% 40 888casino
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Best Payout Online Slots UK

Every online slot machine has rules that are set in such way that in the long run the casino has a slight advantage. Most fruit machines return between 94% and 97% of the money that’s wagered on them in the long run. This percentage is called return-to-player percentage (RTP) and is one of the most important ranking factors for online slots. The higher the RTP, the better are the chances for the players. Check out below how the top online slots compare when it comes to this aspect of the game.

RTPs of the Most Popular Online Slots at UK Online Casinos
Jack Hammer 97.00%
Jurassic Park 96.67%
Twin $pin 96.60%
Thunderstruck II 96.60%
Genie Jackpots 96.54%
Pharaoh’s Fortune 96.53%
Jack and the Beanstalk 96.30%
Starburst 96.10%
Avalon 96.01%
Monopoly 96.01%
Gonzo’s Quest 96.00%
Wheel of Fortune 96.00%
Wizard of Oz 95.99%
Gladiator 95.98%
Ted 95.805%
Cleopatra 95.13%
Millionaire Genie 95.02%
Wolf Run 94.98%
Da Vinci Diamonds 94.94%
Kitty Glitter 94.92%
Game of Thrones 94.86%
Reel King 94.00%
Mega Moolah 94.00%
King Kong 91.39%

Big Bad Wolf – 97.29%

Big Bad Wolf is inspired by the tale of the Three Little Pigs chased by a wolf, trying to blow their houses down. The reels are framed within a large straw house, with running hills. The payout rate of this game is quite high compared to other competitor slots.

Immortal Romance – 96.86%

Powered by Microgaming, Immortal Romance is an efficient looking slot with a gothic atmosphere and a thrilling vampire theme. The game is all about forbidden love, where some characters are madly in love with each another, but they can’t be together.

Fruit Stack – 96.28%

Fruit Stack is one of the best non-progressive jackpots in the industry today, coming in the form of 10,000x times your initial bet. You get this when you manage to land five of the diamond wild symbols on any active payline. This is why its payout rate is also quite high.

Starburst – 96.1%

Starburst is one of the most popular slot games ever and is developed by Netent. All Starburst slots feature 5-reels with a total of 10-paylines that could reward you with an amazing 50,000 coins regardless of whether you’re playing online or on your mobile device.

Buffalo Blitz – 95.96%

Embark on a journey that will take you far away to the lands of Africa and the jungles of South America. This is a fantastic and beloved slot game, produced by Playtech. The wildlife theme of the game will allow you to meet numerous fantastic wild creatures, while you win some extra cash.

Ted – 95.805%

Based on the 2012 comedy, Ted is a BluePrint video slot game, which follows the adventures of the famous talking teddy bear, and allows you to enjoy all of his highly inappropriate comments spin after spin.

Cleopatra – 95.2%

The game is based on the enchanting Egyptian Queen, Cleopatra, and it incorporates many of the Egyptian culture in its theme. Apart from the mesmerizing theme, this slot also has great bonus features and winning opportunities.

Rainbow Riches – 95%

Barcrest’s Rainbow Riches has become one of the most popular slot machines in the recent times. The video slot comes with five reels, 10 paylines and 18 paylines. The game is available at a large number of online casinos, due to its increasing popularity.

Halloween Fortune 2 – 94.99%

Halloween Fortune II is a beautifully designed slot game with 5 reels and 25 paylines, featuring three spell-binding witch characters and a whole load of intoxicating potion symbols. It also includes numerous bonus rounds and free spins for a greater chance of winning extra cash.

Top Cat – 92.48%

Top Cat by Blueprint Gaming is inspired by the famous 1960s Hanna-Barbera cartoon. Like most franchise-based slot games, Top Cat aims at reproducing the settings of the original product faithfully. Its payout rate is not as high as we would have hoped for but is still acceptable.

The Best Online Slot Softwares

As you probably have noticed from the table above, most of the online slots in our ranking are developed by the three major software houses in the field of online gambling: NetEnt, Playtech and Microgaming. Though that’s not always the case, here bigger equals better: these providers have such a history and experience in the development of online casino games that there are almost no minor companies that can compete with their standards. Probably the only smaller software house that can find a rightful place near these giants is Random Logic, the developer of many of 888’s games, including Millionaire Genie. Read more about these top slot providers below:

Slot Software Developers Number of Slots Most Popular Slot Established In Other Games Top Casino
Playtech 330 Jackpot Giant 1990 340 Ladbrokes
Novomatic 325 Reel King 1980 35 NetBet
Nextgen 250 Foxin Wins 1999 63 William Hill
Netent 250 Starburst 1994 170 888 Casino
IGT 150 Cleopatra 1975 125 BetVictor
Barcrest 62 Rainbow Riches Fortune Favours 1968 2 PlayOJO
Quickspin 46 Big Bad Wolf 2011 0 Ladbrokes
Big Time Gaming 30 Danger High Voltage 2011 0 Grosvenor
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Netent’s Slot Selection

Often you can tell that an online slot is developed by NetEnt by just looking at it. The superior graphics and the exciting themes are usually more than telling. On top of that, the software behind the games is 100% fair, which is tested and verified by reputable gambling authorities and independent testing agencies such as The United Kingdom Gambling Commission, The Alderney Gambling Control Commission, The Malta Gaming Authority, The Gibraltar Gambling Authority, The Global Gambling Guidance Group (G4), eCOGRA and iTech Labs. Some of the best NetEnt slots that you can play online are Gonzo’s Quest, Jack Hammer and Jack and the Beanstalk, which is arguably the most exciting and best-looking online slot that you can play online.

Playtech Casinos – The Home of Great Slots

Playtech is the most popular casino software provider. They are a very reputable company with over 15 years of experience in the development of online casino games. As they are licensed by the UK Gambling Commission and traded on the London Stock Exchange, you can be sure that all their games are fair and the outcomes of the hands/spins are truly random. Some popular Playtech slots that you will surely enjoy trying are Monty Python’s Spamalot, Gladiator, Kong, Little Britain, Sopranos and The Three Musketeers.

Microgaming – The Original Casino Software

Microgaming is a true giant in the world of online gambling. The company was founded in 1994 when it launched the first ever online casino and since then has won numerous prestigious awards for their work in the online gaming sector, such as eGaming Review Magazine‘s Award for Innovation in RNG, Innovation in Slot Provision and The Gambling Online Magazine Award Best Casino Software. Most of their games, I would have to admit, don’t have the same high-quality graphics as the ones of NetEnt, but their newest titles such as Game of Thrones and Jurassic Park have really elevated the standards of how a casino game should look. Other great slots that you can find in Microgaming’s portfolio are Immortal Romance, Terminator II, Battlestar Galactica, Avalon II, Thunderstruck II and the most popular online slot in the UK – Mega Moolah.

Random Logic – 888’s Proprietary Software

Random Logic is a company that’s part of the 888 Group and as such it develops games for the best online casino in the UK – 888. The games they have developed are of equally high quality in both instant-play and download mode. On top of that most of them have really smooth and well-functioning mobile versions. But the most exciting and appealing feature of their game selection without a shadow of a doubt is the uniqueness. Some of the top slot titles offered by Random Logic are Ultimate Universe, Snack Time, Viva l’Italia and the top-ranker in our online slots ranking – Millionaire Genie. In their portfolio you can also find some exciting progressive jackpot slots like Ultimate Grill Thrills and Pirates Millions, the latter of which offers one of the highest jackpots you can find on the Internet – £8,888,888!

There are of course many other software providers that offer great casino games and that definitely deserve your attention. Among those are IGT, Cryptologic, Greentube and Blueprint Gaming, to mention but a few.

Mobile Versions of the Games

As today more and more players choose to enjoy their favourite games directly on their mobile phone or tablet, a very important aspect of any online slot is whether of not it has a mobile version. Actually, we were kind of pleasantly surprise to find out that only 6 out of our top slots don’t have a mobile version and those were Genie Jackpots, Monopoly, King Kong, Reel King, Wheel of Fortune and Wizard of Oz. On the other hand, we were very impressed by the look and feel of the mobile versions of Millionaire Genie, Starburst and Twin Spin. These mobile slots are so good and so close to the original ones, that we literally forgot we were playing on mobile.

Top 3 Mobile-Friendly Slots in the UK
  • Random Logic’s Millionaire Genie Top Choice for Mobile
  • 88 Free Spins + £100 bonus
  • Full T&Cs apply. No Deposit Offer: New players with valid mobile number only • Claim in 48 hrs • 14 day expiry • Valid for selected games • Pre-1st deposit only: FS voucher winnings is uncapped, bonus wins & max redeemable amount for non-funded players capped at £100, excl. JP wins • Wager Bonus x1 - req. contributions vary by game • Bonus expires in 90 days • Deposit Offer: 1st time depositor at 888casino only • £20 min deposit • Claim in 48 hrs • Valid for selected games • Bonus wins capped at £500, excl. JP wins • Pre-1st deposit only: Bonus wins & max redeemable amount capped at £100, excl. JP wins • 30x wagering – req. vary by game • Bonus expires in 90 days • Payment method & country restrictions apply • Withdrawal terms, No Deposit Offer terms & Deposit Bonus Offer terms apply.
  • NetEnt’s Online Slot Online Slot Starburst on Mobile
  • Wager £10 get £30 + 100 Free Spins
  • Full T&Cs Apply. 18+ New customers only. Deposit, opt in and wager £10 on selected games within 7 days of opening new account. Get 3 x £10 bonuses for selected games with up to 40x wagering plus 100 Free Spins. Bonuses expire in 7 days. Max redeemable from bonuses £750. 100 Free Spins have no wagering and expire in 7 days. Card payments only. T&C's Apply | begambleaware.org | Please Gamble Responsibly.
  • Twin Spin by NetEnt – Mobile Version
  • 80 Free Spins For New Players
  • Full T&Cs Apply. For Every £1 you deposit, 1 free spin will be credited. Up to 50 free spins on Book of Dead. Min. deposit is £10. Offer only available for first time depositors. After your first deposit you may claim an additional 30 free spins in the Kicker section. Extra free spins must be claimed within 3 days. Game: Rich Wilde and Book of Dead | Spin Value: £0.10. OJO’s Rewards and Game Play policy applies.

Sure enough there is a lot more to know about how you can play on the go like for example with which devices are the games compatible, are there available apps for iOS and Android, what type of apps are there – downloadable or web-based, and so on. You can learn more about all these topics and more on our dedicated mobile slots page.

Fairness and Security when Playing Online

When computerised games were first introduced to the public, there was a great deal of mistrust regarding this new technology. Many people were suspicious that the games could be rigged in the casino’s favour. Whilst this is an understandable fear given that the inner workings of the games cannot be seen, all online casino operators who serve UK players have to be regulated by the UK Gambling Commission before a gambling licence is awarded. The Gambling Commission monitors closely the activities of all operators who serve UK customers and has been set up to safeguard the player’s interests. The casino companies themselves have also taken big strides in becoming more transparent and many of the online casino companies are also subject to third-party independent testing agencies who scrutinise the game results to ensure that the outcome of the games are truly random. The best examples for such companies are Gaming Laboratories International (GLI), iTech Labs and eCOGRA. You can learn more about them by clicking on the logos below.

Gaming Laboratories International - Logo
iTech Labs – a Testing Laboratory for Online Gaming
eCOGRA – Online Casino Testing Agency

Random Number Generator (RNG) – At the heart of every game at an online casino including slots, roulette, blackjack and poker, is the random number generator (except live casino games). The RNG is the mechanism that decides the result of every game. When you press ‘spin’ or the ‘start’ button, in reality the result has already been decided and the spinning effect is really just for the show! The ending position of each reel is independently decided by the RNG for each reel.

As each spin is random it is worth remembering that it makes no difference whether you have played one spin or one thousand spins, the odds of getting a win will not change. However playing more win-lines does increase the chances of winning but as stated before this does cost more so having control of your bankroll is an important part of playing.

Is it legal to play online slots?

The answer to that question is yes. Online gambling is legal in the UK, provided the casino you play at has all the necessary certificates to function. The administrative authority, which decides what casinos are safe for players is called the UK Gambling Commission.

Are online slots rigged?

As long as the casino you play at is reputable and has all the necessary certificates, you can be sure that the slots from its catalogue are not rigged. There are testing houses, which check for the fairness and RNG component of the games and thus ensure gamblers’ safety.

How We Ranked the Games?

As we already mentioned, testing and ranking all the slots available for the UK was no easy endeavour. Even after we filtered out the ones that aren’t offered by UK-licensed sites, we were left with a pool of over 500 fruit machines to choose from. You can find way more online slots free to play at slots.info. In order to significantly lower this number we did a little marketing research to find out which are the most searched for slots. After all, usually there’s a reason behind the popularity of a certain game and often that reason is that the players are more than happy with the experience of playing it.

Most Searched for Slots in the UK
#1 Mega Moolah 2480
#2 Reel King 1420
#3 Cleopatra 730
#4 Starburst 590
#5 Thunderstruck II 450
#6 Millionaire Genie 410
#7 Monopoly 320
#8 Gonzo’s Quest 190
#9 Twin $pin 180
#10 Jurassic Park 170
#11 Genie Jackpots 140
#12 Pharaoh’s Fortune 130
#13 Ted 120
#14 Wolf Run 120
#15 Wizard of Oz 90
#16 Game of Thrones 70
#17 Jack and the Beanstalk 70
#18 Da Vinci Diamonds 70
#19 Gladiator Jackpot 70
#20 Jack Hammer 50
#21 Kitty Glitter 50
#22 King Kong 30
#23 Avalon 30
#24 Wheel of Fortune 30

So this is how we managed to narrow down the available games to 24 and from there on we prepared a list of criteria according to which to rate them. Of course, there might be a more appropriate slot machine for you than the one that we ranked number one. There are many options and features that set apart one slot machine from another. For some players having the highest possible odds for a win, i.e. the highest theoretical return-to-player percentage, might be the most important thing, while for others having great quality and many bonus features is way more exciting. No matter what your priorities are though, I’m sure you’ll find a lot of useful information in the next paragraphs.

Gaming Options and Features

Even though the goal when playing fruit machines is always the same – getting a winning combination of slot symbols on the reels, every game features different options and winning opportunities. Most online slots offer free spins that are usually won by getting three scatter symbols on the reels. Other games have expanding wilds, stacked wilds, multipliers, respins or feature a gamble option. They also feature different number of winning lines and a different bet range. Some of them even offer life-changing progressive jackpots. In the table below we’ve collected basic information about the features of the games in our ranking.

Basic Information about Our Top Slots
Online Slot Paylines Bonus Features Free Spins Jackpot AutoPlay
25p – £6 25 1
1p – £200 20 1
1p – £200 20 1
10p – £100 10
90p – £75 243
15p – £150 15 1
2p – £450 9 2
20p – £50 20 1
1p – £125 243
30p – £75 243 1
20p – £500 20 2
15p – £450 20 1
40p – £400 40 1
30p – £150 30 3
30p – £30 243
20p – £100 20 2
£20 – £2000 20
1p – £250 25 2
25p – £250 25 1
£1 – £3000 30
5p – £125 25 2
30p – £30 243 5
£5 – £45 5 1
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Another feature that can make your experience even better is the autoplay option which is especially useful when you’re wagering a bonus. Usually, this option can be set to stop whenever a feature is won so that you don’t miss any part of the fun. You can further cut the suspense of waiting for the exciting bonus rounds and the profitable free spins if you turn on the ‘quick spin’ option that some online slots offer. Not to mention that this way you’ll satisfy the wagering requirements of your bonus even faster.

The Theme of the Slot – Graphics, Sounds and Animation

One of the first things that tempts players to try a new online slot is the theme and the design of the game. The creators of video slots draw inspiration from various subjects such as famous TV shows, movies, computer games and comic books. Other games are merely revamped versions of classic fruit machines that are famous in land-based casinos. Whichever the case, most players enjoy slots with superior graphics, animation and audio. Take a look at the scores we gave each of the games in our list in these three categories in the table below:

Online Slot Software Graphics Animation Audio
Gonzo’s Quest NetEnt 10/10 10/10 10/10
Millionaire Genie Random Logic 9/10 10/10 10/10
Game of Thrones Microgaming 9/10 10/10 10/10
Jack Hammer NetEnt 10/10 10/10 9/10
Jurassic Park Microgaming 9/10 10/10 10/10
Starburst NetEnt 9/10 10/10 10/10
Jack and the Beanstalk NetEnt 8/10 10/10 10/10
Avalon Microgaming 8/10 10/10 10/10
Thunderstruck II Microgaming 9/10 9/10 9/10
Twin $pin NetEnt 8/10 9/10 10/10
Genie Jackpots BluePrint 8/10 9/10 9/10
Cleopatra IGT 8/10 9/10 9/10
Monopoly IGT 8/10 9/10 9/10
Mega Moolah Microgaming 8/10 8/10 9/10
King Kong Cryptologic 8/10 10/10 7/10
Pharaoh’s Fortune IGT 8/10 8/10 9/10
Gladiator Palytech 8/10 8/10 8/10
Reel King Green Tube 7/10 8/10 8/10
Wolf Run IGT 7/10 8/10 8/10
Da Vinci Diamonds IGT 7/10 7/10 8/10
Wizard of Oz Williams Interactive 6/10 8/10 8/10
Kitty Glitter IGT 7/10 7/10 7/10
Wheel of Fortune Crypto Logic 6/10 7/10 7/10
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The Top Slots – Final Scores

After reviewing all the slots in our ranking according to the six criteria we’ve chosen, we can confidently say that Random Logic’s Millionaire Genie and NetEnt’s Gonzo’s Quest truly excel above the others. On top of that both these slots can be played for free if you choose to claim the no-deposit bonus of the casino that offer them – 888. Check out the final scores of the top slots on the UK market below.

Millionaire Genie 9.7
Gonzo’s Quest 9.5
Game of Thrones 9.2
Jack Hammer 9.2
Jurassic Park 9.1
Mega Moolah 9.1
Twin $pin 9.1
Thunderstruck II 9.1
Genie Jackpots 9
Avalon 9
Pharaoh’s Fortune 8.9
Starburst 8.9
Monopoly 8.9
Cleopatra 8.9
Jack and the Beanstalk 8.8
Gladiator 8.5
King Kong 8.5
Reel King 8.3
Wolf Run 8.2
Da Vinci Diamonds 8
Wizard of Oz 7.9
Kitty Glitter 7.7
Wheel of Fortune 7.7
Ted 7.7

Online Slot Reviews

On our website, we constantly write reviews of famous slot games and thus help our readers get to grips with a game before they start playing. On our review pages, you will discover important info about a slot’s payout percentage, features and various characteristics. Down below, you will encounter the top 5 online slot reviews we have written:

Upcoming Slot Reviews

Slot Games PDF In case you cannot wait to receive something new from us, we have prepared a PDF file with the upcoming slot reviews that will be uploaded on our website. We aim to be as current as possible and it is our priority to upload as many interesting reviews about new slots as possible. So, stay tuned for what’s coming.

Online Slot FAQs

James Knight

Are slots random?

Certified slot games, which have been produced by reputable software providers are definitely random. They use a random number generator, which is a computer that generates random numbers, and these determine the outcomes of the game. This is checked for by different testing houses.

James Knight

Can you win on online slots?

The answer is – yes, you can. The best way to ensure you win on a slot is to compose some kind of strategy for yourself – whether it will be betting only small amounts of cash or betting big and thus accelerating the unlocking of bonus features – it is up to you.

Louis Walton

Are there any online slots that pay real money?

The answer is simple – absolutely yes! All you need to do is find a reputable online casino and then choose a slot game, which suits your preferences. Another way to win is through no deposit bonuses – simply look for an operator, which offers such bonus and you will get the chance to win real money without paying a dime.

Anonymous

Are online slots legal?

Playing online casino games such as slot machines is legal in the United Kingdom, as long as the casino you choose to play at has a license from the UK Gambling Commission.

Anonymous

Are online slots safe to play?

Every time you play slots online, you are taking the risk of possibly losing money… These are the types of chances you can easily avoid by playing only in safe, secure, and reputable online slots casinos, which have the needed certificates.

Sherry Richardson

What is the average payout on slot machines?

Slot machines are typically programmed to pay out as winnings 82% to 98% of the money players have invested. This is known as the “theoretical payout percentage” or RTP, “return to player”. Usually, the average RTP of most slot games is around 92%-95%.

William P. Dement

How do you pick a winning slot machine?

Most players are wondering what the criteria of choosing a slot machine that is going to pay are. Is there something to do with the software provider, the casino, the theme of the bonus features of the game. You can find the answers to those question in the video down below.

Antony Boyle

Should you play progressive slots?

There are many people who have become millionaires nowadays from playing progressive slots online. However, you should bear in mind that the RTP of such slots is much lower than the regular ones. Nevertheless, there is no harm in trying your luck – just look for a reputable online operator.

Rebecca Thomsen

How are progressive jackpots paid?

Players like progressive jackpots because they give them the chance to become millionaires with one click. One important thing you should have in mind when considering progressive jackpot slots is, that the odds of winning usually favor the casino and not the player. There are, however, instances where one might draw the big jackpot and they are not so uncommon.

Mads Lind

What is the largest slot jackpot ever won?

The winner of the largest jackpot is a 26-year-old soldier from the UK, who won the sum of £13,209,300 when playing the Mega Moolah slot game from Microgaming. The lucky event happened in October 2015 and changed the life of Jon Heywood forever.

Janet Kirkland

Can you win money on online slots?

If you wish to test this theory, you can take a test run on many of the best games without spending a dime. Simply search for a casino, which offers a no deposit bonus and try some of the games out. Thus, you will see what you actually chances of winning are.

Anonymous

Can I play slots online for real money?

You can do so once you have made an account at an online casino and then have placed a deposit. You are likely to receive a welcome bonus with which you can play casino slots online for real money. You can also play slots from your mobile devices, such as phones and tablets from any location you wish.

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