Welcome to our guide to the best slot sites UK – the online casinos where you can play as many excellent slots as you want. This serves as a guide to slots themselves, including how to get the most out of them and how they work. It also discusses the various slot site bonuses you might be eligible for.
Top 8 Slot Sites at a Glance
Here are what we consider to be the top eight slot sites currently available to online slots players in the UK.
- MagicRed – Has top slots from Pragmatic Play and NetEnt
- All British Casino – Always 10% cashback on your slots losses
- PlayOJO – Daily ‘must drop’ jackpot for specific slots
- CasiPlay – Get 100 free slots spins with CasiPlay’s welcome bonus
- Yeti Casino – Enjoy almost 200 Megaways slots
- Winomania – Has Pragmatic’s ‘Drops & Wins’ feature
- HeySpin – Play all the new slot sites UK games such as Book of Octoberfest
- Fafabet – Take your pick from over 1,000 slots
Three of the Best UK Slot Sites in Detail
We’ve given you our brief rundown of the top ten list when it comes to slots, and now it’s time to introduce you to the top three. Here are some mini reviews for the slot sites we consider to be the very best that the UK online slots sites realm has to offer.
1. MagicRed – Has Top Slots from Pragmatic Play and NetEnt
One way it’s easy to judge the overall ‘super-ness’ of a betting site is to take a look at the software companies it uses to provide its slots. The list of providers at Magic Red is suitably impressive, containing such names as Pragmatic Play, NetEnt, Eyecon, Play’n GO and Yggdrasil. If you want to work your way through the entire list you’ll get close to fifty names – that is incredibly impressive. The only name missing is Microgaming, but since their slotting arm has just been purchased by Games Global, expect your Microgaming classics, such as Immortal Romance, to appear at MagicRed soon.
If you enjoy slots tournaments and are sensible when playing them, then you’ll be pleased to hear that MagicRed runs them on a regular basis. We ourselves are pleased that MagicRed’s slots tournaments only run for 24 hours. We don’t like slots tournaments that last, for example, a week, as we don’t think they are very compatible with responsible gambling, however, a 24-hour slotting tournament seems fine, as long as players are sensible. You can enjoy a share of £2,500 if you finish towards the top of the leaderboard.
What We Like:
- Impressive list of software providers
- 24hr slots tournaments with £2,500 prize fund
- Win up to 50 spins with the Daily Spins Frenzy
Room for Improvement:
- No slots (currently) from Microgaming
2. All British Casino – Always 10% Cashback on Your Slots Losses
If gongs were handed out for the best-looking casino, then we have no doubt All British Casino would habitually be on Insta bragging about the latest sash they’ve had placed around their shoulders. We like the fact that every time the All British Casino slides a new slot into their catalogue, they make a bespoke game icon for it as opposed to just shoving out the generic one, as most online slot sites seem to do. It’s only a little detail, but it’s something they don’t have to do, and it’s something that really impresses us.
We also like the fact that the All British Casino splits its slots into different categories, so if you have a favourite type of slot, you can choose other slots of a similar type. The categories are Something Fishy, Megaways, Book of, Movies & Shows, Music, Sports and Animals … quite an eclectic mix! You can search for bespoke titles yourself, so there’s no need to be tied to specific themes. ABC do run slots tournaments, but at six days per tournament, we think they are a little too lengthy.
What We Like:
- Best looking casino on the list
- Select your fave slots by theme
- Slotting deals are available every week
Room for Improvement:
- Slots tournaments last too long
3. PlayOJO – Daily ‘Must Drop’ Jackpot for Specific Slots
The main annoyance with slots bonuses and casino bonuses in general is wagering. We completely understand why most casinos rely on wagering … they’d be constantly giving away money if they didn’t … but wagering in excess of 30x always seems a bit excessive to us. Well, wagering is something you need not concern yourself with at PlayOJO, as no matter which bonus you claim here, it automatically comes with no wagering. You start things off at PlayOJO in the best way possible with 50 free, no-wagering spins.
When playing the slots at PlayOJO, make sure you check out the slots that qualify for the daily jackpot. These are slots made by Red Tiger, a subsidiary of NetEnt. The daily jackpot drops … well, every day, and that’s guaranteed. If you enjoy playing slots with progressive jackpots then PlayOJO has a good range, although those mega slots from Microgaming do not make an appearance. Playtech’s Age of the Goods series is available, however, as is Rainbow Riches Pots of Gold and slots with the shared PowerPlay Jackpot provided by Playtech, too.
What We Like:
- No wagering on any bonuses, now and forever!
- Daily jackpot slots provided by Red Tiger
- Jackpots via Playtech are available, too
Room for Improvement:
- The complete range of slots needs to be improved
Best Online Slot Websites Compared
Here are the key details of the nine best slot sites in the UK arranged in a neat table. Consult this table to become a UK slots titles expert.
Slots Site | # of Slots | Top Providers | Free Spins? | Wagering |
MagicRed | 1,000+ | Pragmatic Play, Play’n GO, NetEnt | ![]() |
35x |
All British Casino | ~170 | IGT, Microgaming, Big Time Gaming | ![]() |
Not applicable |
PlayOJO | 5,000+ | NetEnt, Microgaming, Big Time Gaming | ![]() |
No wagering |
Casiplay | 450+ | NetEnt, Microgaming, Play’n GO | ![]() |
35x |
Yeti Casino | 550+ | Blueprint Gaming, IGT, NetEnt | ![]() |
60x |
Winomania | 600+ | NetEnt, Play’n GO, iSoftBet | ![]() |
40x |
HeySpin | 1,500+ | Pragmatic Play, NetEnt, Play’n GO | ![]() |
35x |
Fafabet | 1,000+ | Microgaming, Pragmatic Play, Booming Games | ![]() |
Not applicable |
Top Offers at UK Slots Sites
You should know all about welcome offers at the top UK slots sites, but what about other deals? Here are some great slotting offers we have found at our selected leading UK sites for slots.
Magic Red – Daily Spins Frenzy
Each day at Magic Red, you will receive a new Daily Spin Frenzy challenge. The challenge runs every day from midnight, and you need to wager (not spend) £100 in order to get 10 free spins. Wagering £500 will see you gain 25 freebies and £1,000 will secure the maximum of 50 free spins. Once received, you must use your free spins within 24 hours and free spins winnings must be wagered 35 times over before you can cash them out.
All British Casino – Marvellous Midweek
We all get the midweek miseries … well, you can blow some of them away if you are a member of the All British Casino. Watch your casino inbox between Tuesday and Thursday to see if a tasty bonus titbit lands in there. The All British Casino regularly hands out super deals for its eligible , such as 40 bonus spins on Rainbow Riches Megaways. Of course, it’s not all just the All British Casino being nice, as you have make a deposit during the week of at least £10 or more to get your midweek mystery promotion.
Winomania – Spinomania
You can really step up your slots game with Winomania’s Spinomania. You can earn extra freebie slotting spins every day by simply making a deposit. The number of bonus spins you acquire depends upon the size of your deposit, up to a maximum of 200 bonus spins. All you really need to do is check out the site’s promotions page for the daily bonus code and make sure you apply it when you make your deposit. If all goes well, a number of bonus spins will then appear in your Winomania casino .
What to Expect at the Best Slot Sites
The two best things about slots at UK online slot sites are the number and the variety. If you get bored with one slot at a site you can simply switch to a different one, and with new slots being released every week at the best betting sites, there is always something new for you to play.
There are many different kinds of slots, too, and we explore a few of the most common ones below.
Video Slots
Video slots were invented in the US in the late 1970s. Following the success of arcade games such as Space Invaders and Pac-Man, casino industry experts Fortune Coin Co. invented a slot where the usual mechanics were replaced by electronics and a video screen. Instead of the usual three reels and a single winning pay line, video slots had five reels, three rows and multiple pay lines.
Before long, wilds, scatters and bonus games were added to slots to make them more interesting. Most online video slots are based on this set-up, but each slot has its own set of rules, symbols, pay lines and bonus features to try and make them uniquely interesting and entertaining in order to get people to play them.
Pub Fruities
People in the UK of a certain vintage will slots – or ‘one-armed bandits’ as they are known – in seaside amusement arcades and pubs. Simpler than video slots, a ‘pub fruity’ or classic slot has three reels and a single pay line. They may have features such as holds and nudges to increase a player’s chances of winning.
The symbols of such slots are often fruits such as cherries, melons, lemons and strawberries, hence the name ‘fruit machine’ or ‘pub fruity’. Such slots can be played online too, although they are not as popular as video slots.
Note: In Australia, playing card symbols were used on such machines, and the aim was to achieve a decent three-card poker hand on the winning pay line. These machines were known as ‘poker machines’ or ‘pokies’ for short, which is why down under slots are more commonly known as pokies.
Cascading Slots
These slots, which can also be called ‘avalanche slots’, all have a distinctive feature. After a spin, any symbol that forms part of a winning line is removed from the playing grid, with fresh symbols ‘cascading’ down from above to fill in the gaps. This can then trigger fresh wins, and so on, until a cascade triggers no winning combinations. Cascading wins may also increase a multiplier so the overall value of a win is doubled, trebled and so on until the cascading wins cease.
NetEnt’s ‘Gonzo’s Quest’ was the first to feature cascading symbols. Released in 2011, this slot changed the face of slots forever, as prior to that, online slots were just copies of existing video slots. NetEnt was the first online slots company to truly embrace the potential of online slots away from the real-world video slots they evolved from.
Cluster Slots
Cluster slots work differently from any other kind of slots. They feature large playing arenas with upwards of sixty-four symbols. Instead of achieving pay lines, the aim when playing a cluster slot is to land a cluster of identical symbols that touch each other vertically or horizontally (but not diagonally). There will be a minimum limit on the size of a cluster that generates a payout, and the bigger the cluster, the bigger your prize will be.
Typically, cluster slots act as cascading slots, too. All symbols that form part of a qualifying cluster vamoose from the playing grid, and new symbols pop up to replace them and possibly trigger further wins.
Feature Trail Slots
One typical mechanic of video slots is the feature trail. To qualify for a feature trail side game, players usually have to land a specified selection and number of qualifying symbols. Once the feature has been triggered, the reels are pushed aside, and the feature trail is displayed.
You can think of a feature trail as a simple board game. A dice may be thrown, or a spinner spun to determine how far along the trail you can progress. The dice or spinner will also have a resolution that ends your progress should you be unlucky to land it.
The trail is likely to be filled with bonuses such as free spins and cash payouts. Naturally, the further the progression you achieve, the better the benefits rewarded to you.
Megaways Slots
The Megaways concept was created by Big Time Gaming and applied to one of their own slots, Bonanza. The number of reels was increased from five to six, and each reel, upon landing, could have between two and seven symbols. The slot was also ‘all ways pay’, so any winning combination of successive symbols triggered a payout, no matter the position they landed upon each reel. As a result, a Megaways slot was capable of generating an amazing 117,640 potential pay lines.
Bonanza Megaways proved to be so successful that BTG applied it to its other games. Other companies noticed the popularity of Megaways and approached BTG to apply the concept to their own slots—which BTG agreed to for a leasing fee. These days, there are well over 200 Megaways slots for slotting fans to take for a spin.
Cinematic Slots
Even non-slots players know how a slot, fruit machine or one-armed bandit looks. It has reels, flashing lights, bells and whistles and a lever or (more likely) a button you press to set the reels in motion and other buttons to use when features are triggered. A larger percentage of online slots are built in exactly the same fashion – online, they look and act as if they are real-world slots.
Many slots companies have taken slots to the next level though, making their slots truly unique experiences in of how they look and operate. These kinds of slots cannot be aped by real-world slots. The aforementioned Gonzo’s quest was the first cinematic slot that had a pre-game animation and other animations, the type of which were ground-breaking.
Sadly, due to licence issues, Betsoft, the king of cinematic slots, does not offer its slots to UK players. However, other providers with excellent cinematic slots include NetEnt, Playtech, Play’n GO, Microgaming, and Pragmatic Play.
Progressive Jackpot Slots
The concept of progressive jackpot slots was first created in Vegas in the late 1970s. A series of identical concept slots were linked together by radio across different casinos. A small percentage of each play’s fee per spin was held and contributed to an ever-rising (or progressive) jackpot. A then rare combination of winning symbols at any linked slot at any casino would trigger the award of the jackpot which by then could have risen to over one million dollars.
Curiously, the US government made it law that any progressive slot jackpot must pay out at least one before the jackpot be decommissioned. This led to a Las Vegas slot named ‘Lion’s Share’ finally paying out in 2014 after over two decades of accumulating its progressive jackpot of $2.4 million. After the payout, the slot was swiftly decommissioned.
Progressive jackpot slots now exist online, too, linked across multiple online casinos by the internet. Some slots have their own jackpot, while others share their jackpot with other slots made by the same software provider. The current progressive jackpot slots record stands at £42 million won in December 2023 by a player on one of the slots in Microgaming’s WowPot range.
Tournaments at Online Slots Sites
Have you heard of slots tournaments? If you have, you have perhaps wondered what they are. Well, for a set period of time a slot or a series of slots will be designated as being part of a tournament. Once that period of time is up, the player who won the most money playing the slot(s) takes the first prize. Other prizes should be available depending on the tournament.
Slots tournaments can be fun, but we advise you to take care. Humans are naturally built to seek and attain goals, sometimes regardless of the cost. Slots tournaments are really designed to get you to play slots. What’s the point of striving to win the £100 top prize in a slots tournament if you spend £200 doing so?
Playing slots tournaments is your personal choice, but we recommend taking care of your slots spending if you do.
What We Expect from the Best Online Slots Sites
It’s almost unheard of for modern online casinos to have less than 1,000 slots, which is a lotting of slotting! However, when we review online slot sites, we judge the quality of the slots as opposed to the quantity. We look for well-loved slots such as Gonzo’s Quest, Starburst, Immortal Romance, Big Bass Bonanza and Book of Dead. We also look through the companies providing the slots and expect to see top names such as NetEnt, Microgaming, Playtech, Play’n GO, Pragmatic Play, Quickspin, Big Time Gaming, Habanero and Yggdrasil.
We check to see the slots with progressive jackpots that the site provides and any specific slots promotions and bonuses. We also look at the of those bonuses, in particular wagering expectations, and at the slots contribution, which should always, and no exception, be one hundred per cent.
In addition, we look at how the site operates as a whole. This includes the other games available, the usability of both the desktop platform and any apps provided, bonuses and promotions, payment methods available and payout speeds, plus the actual iveness of any provided .
Common Offers at UK Slot Sites
Most bonuses and promotions at slot sites involve slots, or at least they can involve slots. Here, we take a look at the most popular.
Welcome Offers
99.99 per cent of online casinos or slot sites - even new slot sites - will have some kind of welcome bonus. The most common is ‘deposit X to get X’ in which the money in your first deposit is matched by the same amount in bonus cash.
Bonus cash can only be used to play games and can never be withdrawn. Winnings made via bonus cash usually need to be wagered. For example, if a £50 bonus comes with 30x wagering, then you will need to wager £1,500 of your own money before you can cash out winnings. , this is money you need to wager, not spend. If you wager £1 x 1,500 spins on Starburst, you won’t lose every spin and, indeed, may end up with more money than you start out with.
Free Spins
Free spins are slotting spins you don’t have to pay for. They will have a specific value (usually 10p each) and may be tied to a specific slot or range of slots. You spin your free spins, and then any winnings are added to your balance.
It is becoming increasingly common for free spins winnings to be awarded without wagering requirements. However, it is best to check any free spins offer to be sure if you don’t want to go through the wagering hassle.
Cashback Offers
Cashback is now offered at an increasing number of online casinos, either in the form of a welcome bonus or an ongoing weekly promotion.
Say a gambling site offers 5% cashback for your first week. During that week, your wins and losses are compared against each other, and should you end up in the red, you get 5% of your losses back. So, losses of £20 will result in £1 in cashback.
Please note that in the majority of cases, cashback is paid as bonus money.
Popular Online Slot Providers
Even the best online casinos do not make their own slots in the same way that your local corner shop does not make its own products. Slot sites lease their slots from independent software providers that develop their own slots and casino games. Below, we take a look at some of the best slots sites providers with titles you should be looking out for.
NetEnt
For a decade, NetEnt were kings of the slotting empire. From the slots-shattering brilliance of Gonzo’s Quest and the thrilling Starburst, the release of NetEnt’s next slot was always keenly anticipated. Sadly, though, they ran out of ideas around 2021 and began re-skinning their old slots, much to their fans’ dismay. Classic NetEnt titles are still very much worth playing, though.
Best slots: Gonzo’s Quest, Starburst, Finn’s Swirly Spin, Dazzle Me.
Microgaming
If slots were fine wines, then Microgaming would be the vineyard producing the most vintage ones. Microgaming began life (way back in 1994) as an online casino but swiftly found they could make more money leasing their games to other providers. Microgaming are the kings of progressing jackpot slots such as Mega Moolah and Major Millions, and they have made many people millionaires. Despite all this, Microgaming seem now to be taking a back seat when it comes to slots, having sold their slots platform Quickfire to Games Galore. There are still plenty of Microgaming classics for you to enjoy, though.
Best slots: Immortal Romance, Mega Moolah, Thunderstruck II, Games of Thrones.
Playtech
Microgaming may be the granddaddy of slots, but Playtech can claim to be the grandmomma of all slots. Created in 1999, Playtech are casino all-rounders creating slots, casino games, and even running live casino studios. They are famed for franchise-based slots series such as Age of the Gods and Kingdoms Rise. They also pioneered the ‘buy feature’ option, giving the players the chance to buy a feature in one game and use it on another. Unfortunately, the UKGC didn’t like the idea of allowing players the opportunity of spending money just to trigger free spins and banned the concept from UKGC-licensed casinos in the United Kingdom.
Best slots: Buffalo Blitz, Age of the Gods (series), Kingdoms Rise (series), Frankie Dettori’s Magic Seven.
Pragmatic Play
Nearly all of Pragmatic Play’s slots come with an added benefit – ‘Drops and Wins’. If you are playing any Pragmatic Play slot at any online casino, there’s a chance you’ll win a random cash prize. There are over 1,000 random drops every day, with the biggest prize being 2,500 times the value of your stake. Pragmatic Play are the kings of live casino play (apart from live casino-only Evolution), but they have provided many classic slots, too.
Best slots: Wolf Gold, Big Bass Bonanza, Wild Wild Riches, Gates of Olympus.
Play’n GO
This Swedish-based company caused a stir in 2020 when they vowed to release one slot per week every week of that year. Despite that being the infamous COVID year, Play’n GO were almost true to their word (they released 50) and managed to release countless new classics. For a while, Play’n GO snatched the crown of ‘top slots provider’ from rivals NetEnt, and they still top most slots players lists when it comes to spinning the reels. They are also responsible for introducing the world to slots archaeologist Rich Wilde and his daughter Kat.
Best slots: Rich Wilde & the Book of Dead, Genix 2, Reactoonz, Reactoonz 2.
Big Time Gaming
If you have been paying attention then you may recall we have mentioned Big Time Gaming previously, as the creator of the ‘Megaways’ concept. It was a superbly innovative idea that has generated ‘mega moolah’ for BTG ever since. It propelled a previously unheralded software company right to the front of the slotting world, and they have remained there. While their best slots sites titles are undoubtedly Megaways slots, BTG have also created many other great titles, funded no doubt in a mega way by their Megaways success.
Best slots: Millionaire Rush, Star Clusters Megapays, Wheel of Fortunes Megaways, Vikings Unleashed.
Blueprint Gaming
Real-world slots have been forced to jump ahead to keep up with the online slotting world. Many slots now come in a single cabinet, with options to play any video slot from all the slots that are available. In the UK, the biggest company to do this is Blueprint Gaming and you can play their top slots in the comfort of your own home, out and about via mobile or at your local pub, arcade or bookie. Blueprint are part of Merkur who do the same thing around and other European nations.
Top Slots: Eye of Horus, The Goonies, Fishin’ Frenzy, Top Cat: Most Wanted
Slots Tips to Improve Your Chances
We’ve gone into a full explanation of how to win at slots, but just in case you want the bullet points, then guess what … we’ve provided exactly that below.
Choose Slots with High RTPs
The ‘RTP’ (which stands for ‘return to player’) is a measure of a slots generosity. Without getting too much into it, the higher a slots’ RTP, the more likely it is to pay out. Slots are variable and volatile, so long losing steaks and long winning streaks are possible, and RTPs reflect long-term expectations. While slots should never be played with the sole objective of winning money, you stand more chance of winning if you play slots with RTPs of at least 95 per cent.Be Careful with Your Money
Slots are speedy. Indeed, until it was banned by the UKGC, you could set slots to ‘turbo mode’ with each spin lasting less than a second. Want to lose £10 in ten seconds? Then turbo mode was the way to go! Even though, legally, a slot spin now has to last at least 2.5 seconds, slots are still by far the speediest money-eaters at online casinos. When you are playing slots keep a very keen eye on just how much you are spending.Quit While You Are Ahead
When you begin a slots session, have a definite figure of how much money you are willing to lose. Once that money has gone, give up and go do something else that doesn’t involve money. In addition, if you manage to double your slotting bankroll then stop playing, withdraw your cash and go spend it on something tangible instead. If your aim when playing slots is to win money, there’s no point spending any winnings on slots, too.
Playing Slots Games on Mobile Devices
Slots are more suited to mobile devices than any other casino game. That’s because the most important aspect of the slot – the reels – can easily be displayed on virtually any screen, including small mobiles. Having a small screen does not detract from your enjoyment of the slot.
You may have heard a rumour that you can’t play slots on iPhones and iPads. This used to be true, but it no longer is. Online slots used to be built using Adobe’s Flash platform. In 2007, Apple announced they would no longer Flash, and eventually, all Flash-built games stopped working on iOS devices. Slots companies started building and reprogramming their slots to run on HTML5 instead, and now all slots work on iPhones, iPads, and Android devices.
Nearly all online casinos have apps you can and install to your device(s) if you so choose. You can also play slots at your favourite online casino via a mobile browser.
Glossary of Essential Slots
Slots has its own lexicon of which a new slots sites player may find confusing. The following dictionary of slotting should help define any that you need to define.
Slots Term | Slotting Definition |
243 ways | The maximum number of pay lines for a five-reel, three-row slot in which all ways pay. |
Autoplay | Playing a slot automatically without the need to press the spin button for each spin. Banned in the UK by the UKGC. |
All Ways Pay | Any possible winning combination across the reels is a win. |
Avalanche | A mechanic where winning symbols ‘fall off’ the reels upon a win and new symbols drop in from above to replace them. |
Cascading | See ‘Avalanche’. |
Expanding Reels | A winning symbol on a reel (usually a wild) that expands upon a win to fill the entire reel. |
Hit Frequency | The frequency at which winning combinations are triggered. High-frequency slots tend to have low winning payouts. |
Jackpot | The top payout a slot offers as a reward for the rarest winning symbol configuration. |
Max Bet | The maximum bet the slot accepts. Some features will only be triggered if you are betting at the maximum bet level. |
Megaways | A slot mechanic where each reel spin reveals a random number of symbols on each reel, from two to seven. Megaways slots are also ‘all ways pay’ slots. |
Multiplier | An in-game mechanic that multiplies the value of a winning payout. |
Pay Line | A line on which a winning combination of symbols has to land in order to trigger a pay out. |
Pay Table | An information screen that lists all potential configurations of the reels that lands a payout and each payouts value. |
Respin(s) | An in-game spin or spins that you do not have to pay for. |
RTP | Return to player – a theoretical percentage that predicts the generosity of a slot. |
Scatters | Symbols that trigger wins or features by landing anywhere on the reels and not just on a payline. |
Variance | The frequency of wins compared to losses – slots with high variance produce fewer big wins. |
Volatility | See variance. |
Wilds | Symbols that can substitute for any other symbol as long as they contribute to a win. If a wild can contribute to more than one win by changing to multiple symbols only the more profitable win will be paid. |
Win Both Ways | Slots that have winning paylines that are mirrored both left-to-right (as is usual) and right-to-left. |
The Final Spin
Slots sites are the most common type of gambling site in the UK, with dozens of slot websites being available. We hope this page has de-clouded any mystery you had regarding slots and that you now feel confident playing fruit machines at any online slots casino. Just to be careful with your money, and always practice responsible gambling.