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BEST SLOT SITES UK MARCH 2023

This expert guide to the top slot sites in the UK features all of the best UKGC licensed casinos. SlotsHawk is here to help you find the top UK slot sites. Read our guide to the greatest online casinos the UK has to offer and play online slots today!

WHICH ARE THE BEST SLOT SITES IN THE UK?

The best slot sites in the UK are:

1. LeoVegas Casino – 3,000+ Slots
2. Playzee – 1,600+ Slots
3. All British Casino – 1,100+ Slots
4. Atlantic Spins – 500+ Slots
5. Casumo Casino – 2,000+ Slots
6. PlayOJO Casino – 2,000 + Slots
7. Skol Casino – 2,000+ Slots
8. Virgin Games – 400+ Slots
9. Mr Rex Casino – 1,000+ Slots
10. Monopoly Casino – 400+ Slots

These are the ten highest rated slots sites by our editor in chief Jean Prince. Jean has been reviewing and analysing casino and slot games for over 10 years, and these are his top picks.

The sites are ranked highly because they have several qualitative characteristics in common. For starters, they are all licensed by the UK Gambling Commission. Secondly, these sites specialise in online slots.

When it comes to payment methods, they offer many different deposit and withdrawal options, including PayPal. The casinos also have a customer support team that is available 24/7. Finally, all players receive a welcome bonus when they sign up.

Visit the individual slots site review pages for a full review and to see what players and Slotshawk’s experts have to say.

1. LeoVegas Casino

LeoVegas has been voted “Online Casino of the Year” at the Global Gaming Awards for the past six years, and we consider it to be the best slots site as well. Here you can play over 3,000 different online slots, including many of the best games such as Book of 99, 1429 Uncharted Seas and Medusa Megaways to name a few.

When you create an account at LeoVegas, you can claim a bonus of up to £100 to play slots with. You also get 20 free spins on the slot machine Book of Dead. If you prefer mobile slots, this site is particularly good as they have a downloadable app for both iOS and Android devices.

Key features:

• 3,000+ slots
• £100 bonus + 20 wager-free spins
• iOS & Android mobile apps
• “Online Casino of the Year” 2018-2023
• Reputable brand

Play at: LeoVegas Casino

2. Playzee

Playzee offers a game library with great variety. In total you can play a bit over 1,600 slots in several categories. Their selection of progressive jackpots stands out, with over 80 to choose from.

They have the biggest welcome bonus on the list as you can get up to £300 on your first deposit. On top of this, you get 100 free spins.

If you do not like to wait for your winnings, we can tell you that withdrawals are very fast at Playzee. Usually you will receive your winnings within a few hours.

Key features:

• 1,600+ slots
• 100% mobile friendly
• £300 bonus + 100 free spins
• Wide range of progressive jackpots
• Fastest payouts (0-24 hours)

Play at: Playzee

3. All British Casino

Just as the name suggests, All British Casino is designed specifically for UK players. Here you can play just over 1,100 slot games, including branded games like Slingo All British which is exclusive to this site.

New players at All British Casino can take advantage of a 100% bonus up to £100, and every week you get 10% cashback on your losses.

Key features:

• 1,100+ slots
• High RTP rates across the board
• £100 bonus
• 10% cashback
• Weekday promotions

Play at: All British Casino

4. Atlantic Spins

Atlantic Spins is a website that specializes in slots. They may not have the largest selection of games, but the ones they do have are of high quality, such as Jack Hammer 2 by NetEnt and Toki Time by Thunderkick.

Atlantic Spins also has a bonus system that rewards players who play a certain number of slots each day. The rewards usually come in the form of free spins. If you are new to the site, you can get an additional 100 bonus spins when you make a deposit of £20.

Key features:

• 500+ slots
• 100 bonus spins on your first deposit
• Specializing in online slots
• Loyalty rewards scheme

Play at: Atlantic Spins

5. Casumo Casino

Casumo is one of the largest online casinos in the world and has consistently received high ratings from SlotsHawk users and experts alike. They have been active since 2012 and have licenses from several credible authorities, including the UK Gambling Commission.

At Casumo you can play over 2,000 slots from more than 100 different game providers. These include classics such as Book of Dead, Gonzo’s Quest and Starburst. You will also find a wide range of Megaways slots and progressive jackpots.

New players at Casumo Casino can take advantage of a 100% bonus up to £100 and 20 free spins, while existing players have access to a loyalty programme.

Key features:

• 2000+ slots
• 100% mobile friendly
• £100 in bonuses + 20 no wagering free spins
• Loyalty programme

Play at: Casumo Casino

6. PlayOJO Casino

PlayOJO Casino is a firm favourite with many UK players. They made a name for themselves with their television commercials, but that is not why they are ranked so highly.

PlayOJO gets a high rating thanks to their game library of 2,000 slot games and their welcome offer of 50 free spins. You can take advantage of the free spins against a deposit of £10, and any winnings from these have no wagering requirements! They also organise daily slot tournaments that you can participate in.

Key features:

• 2000+ slots
• 50 free spins upon deposit
• Daily slots tournaments
• PayPal accepted

Play at: PlayOJO Casino

7. Skol Casino

Skol Casino is a newcomer to the market powered by White Hat Gaming. Since 2021, they have quickly built up a large game selection with over 2,000 slots from more than 120 different game providers.

For players who like to play with bonuses, it is a great slots site, because here you can get a welcome bonus on your first five deposits. You can also take advantage of up to 250 free spins, 100 of which are given out when you make your first deposit of £20 or more.

Key features:

• 2,000+ slots
• 120+ game providers
• Bonus on your first five deposits
• Up to 250 free spins

Play at: Skol Casino

8. Virgin Games

Virgin Games is the most established slots site on this list. They have been online since 2004, and offer their players just over 400 slot games. The games are developed by some of the most highly regarded software developers on the market, such as NetEnt, IGT and Yggdrasil Gaming.

When you create an account with Virgin Games, you can get 30 free spins for a deposit of £10.

If security and stability are your priorities, Virgin Games is a good choice. There is a reason why they have been around for almost two decades.

Key features:

• 400+ slots
• 30 no wager free spins
• Trusted brand
• Almost 20 years of experience

Play at: Virgin Games

9. Mr Rex Casino

Mr Rex Casino is another newcomer to the list. They stand out with a very mobile-friendly website. Mr Rex’s collection contains well over 1,000 slot machines, and new games are added every week.

Here you can get a £200 welcome bonus when you make your first deposit. The bonus requires a minimum deposit of £10.

Key features:

• 1,000+ slots
• £200 bonus + 100 free spins
• New slot games added every week
• 100% mobile friendly

Play at: Mr Rex Casino

10. Monopoly Casino

Monopoly Casino is a unique website built for Monopoly slots. In addition to these, you can play a variety of video slots, classic slots and Slingo slots. In total, you can play a little over 400 games here. You can play these in your browser or via their app.

When you make a deposit of £10 or more at Monopoly Casino, you get 30 free spins. These can be used in the game Monopoly Paradise Mansion.

Key features:

• 400+ slots
• iOS & Android mobile apps
• 30 wager-free spins

Play at: Monopoly Casino

BEST UK SLOT SITES BASED ON CATEGORY OR GAME TYPE

In addition to looking at the top slots sites in terms of overall rating, we thought we would also look at how they perform in other areas. Maybe you want to play a certain type of game, or maybe you are looking for specific slot features.

So if you are looking for a slots site for a specific purpose, we have compiled guides for you. Below is a summary showing the best slots sites for some of these categories, please explore the guides for more details.

BEST PAYOUTS

The slot sites that offer games with the best payouts are

1. PlayOJO Casino
2. Skol Casino
3. Videoslots Casino

We consider the best paying slots to be those with a potential payout of 49,999x or more. At PlayOJO you can play Mayan Wild Mystery, which has a payout of up to 125,000x your stake. Skol Casino is also a recommended site because of the number of slots in this category. You can read the full guide to slots with the best payouts here.

HIGHEST RTP

The slot sites that offer games with the highest RTP are

1. Skol Casino
2. All British Casino
3. Monopoly Casino

The average RTP for online slots is between 96-97%. Therefore, we consider a slot game with over 97% RTP to be high. At Skol Casino you can play Book of 99. This slot has an RTP of 99%. All British Casino and Monopoly casino are two other sites that have slots with high RTP such as Ooh Ahh Dracula and Monopoly Big Event. You can read more about high RTP slots here.

BEST PAYPAL SLOT SITES

The best PayPal slot sites are

1. All British Casino
2. Playzee
3. Videoslots Casino

PayPal is widely used for deposits and withdrawals at UK slot sites. The downside is that not all sites allow you to claim bonuses when you make a deposit with PayPal. All British Casino is recommended as you can take advantage of their £100 welcome offer as well as make free PayPal withdrawals. Playzee and Videoslots Casino are also good options as both allow you to take advantage of deposit bonuses when using PayPal. You can read a more detailed analysis here.

BEST MOBILE SLOT SITES

The best mobile slot sites are

1. Mr Rex Casino
2. Casiplay
3. Playzee

Mobile gaming has exploded in the last decade. To rank highly in this category, the slot site needs to offer a good gaming experience for the most common mobile operating systems (Android and iOS). Mr Rex Casino is a great choice for this as you can play thousands of mobile slots directly in your browser with no lag. You can read more about mobile slots here.

BEST NO WAGERING SLOT SITES

The best no wagering slot sites are

1. Monopoly Casino
2. LeoVegas
3. Megaways Casino

Slots bonuses with no wagering requirements allow you to keep your winnings, unlike standard bonuses that often require you to play through the bonus money 35x or more. Due to the high value of these bonuses, only a few online slots sites offer them. Usually these are free spins that you get against a pre-specified deposit amount. If you are thinking of using them, read our guide to no wagering slots.

SLINGO SITES

The highest ranked Slingo sites are

1. Slingo Casino
2. Playzee
3. Mr Rex Casino

Slingo is a mix between slots and bingo, and the London based company Gaming Realms holds the license for this unique game mechanic. You can therefore only play Slingo slots at sites that have games from this game provider. Find more Slingo sites here.

NEW SLOT SITES

In the UK gambling market, new sites and slots are launched regularly. Playing at a new slot site has its advantages and disadvantages. The main advantages are that you have access to some of the best bonuses, a wide range of slots and a modern gaming experience. The main disadvantage is that some sites lack a track record and player reviews. To see if this is a choice that suits you, learn more about new slot sites.

HOW TO CHOOSE THE BEST SLOT SITE

Because of the number of options, choosing a slots site can seem complicated. However, this does not have to be the case. If you know what features to look for, you are more likely to choose the right one.

Here we share the key features that you should consider when looking for the best slot sites.

MAKE SURE YOUR FAVOURITE GAMES AND SLOT PROVIDERS ARE AVAILABLE

In our experience, it is always easier to choose a slots site if you are aware of the kind of games you prefer and the providers behind them. If you know what type of slots you want to play, you can simply choose a site that has them.

For example, if you are a casual gambler who plays mostly for fun, you want to look for a site that has a good selection of video slots. This is because these are easy to play and offer good chances of winning. Sites that have a variety of such slots usually have games from providers such as NetEnt, Microgaming and Playtech.

If you instead like a lot of action with the chance of high payouts, then you will like Megaways slots or jackpot games. In such cases, you should look for slots sites with games from Big Time Gaming.

If you prefer simpler games with a retro feel, you want to play at sites that have a lot of classic slots. On our online slot games page, you can read more about the different types of slots and the studios that produce them.

ARE THE BONUSES RIGHT FOR YOU?

The UK slots market is extremely competitive. Therefore, slots sites are forced to work harder to attract new players. One way to do this is to offer casino bonuses to new players who sign up.

These types of welcome offers can come in different forms. Slot bonuses that provide a certain amount of bonus funds to play for are common. You can also get other bonuses such as free spins and cashback. The true value of the bonuses often differs, so it is definitely worth checking the quality of the sign-up offer before deciding on a new site.

However, you should not only look at the welcome offer. If you plan to play more, it is also a good idea to check what bonuses and promotions are on offer for existing players. Some sites offer loyalty programmes and regular bonus spins on selected slots.

When comparing slot site bonuses, you should look at the size, wagering requirements and maximum conversion amount, which means how much of the bonus funds you can convert into real money and then cash out. Which one is best for you depends on your playing style, but as a guideline you want to look for bonuses that have low wagering requirements and high conversation amounts on winnings.

PAYMENT METHODS AVAILABLE

Most slots sites have many different banking options for players to choose from. You can almost always use debit cards such as Visa and Mastercard. You will also usually be able to use a couple of e-wallets such as PayPal, Skrill and Neteller. Other payment methods accepted at some sites include Apple Pay and prepaid cards such as Paysafecard.

Each payment method has advantages and disadvantages. Debit cards can be used at virtually all slots and casino sites with ease, but offer low anonymity. E-wallets give you fast withdrawals, but sometimes exclude you from certain bonuses. Prepaid cards give you the highest security for deposits, but cannot be used to make withdrawals.

All options also come with deposit and withdrawal limits and in some cases fees. This is important to check on the casino’s payment page before you make a deposit. There you can also see the withdrawal times for each method.

Which payment method is right for you depends on personal preferences. If you want fast withdrawals (0-48 hours), choose a slots site where you can use e-wallets. If you prefer convenience and simplicity, debit cards are recommended.

QUALITY OF MOBILE CASINO SLOTS

Playing slots via mobile casinos has become increasingly common in recent years. As a result, sites have optimised their slots for mobiles and tablets.

The optimization process may differ depending on the site. While some have created an app that you need to download, others allow you to play casino games and slots in your mobile browser.

If you plan to play via your smartphone or tablet, you should check this with the online casino beforehand.

WHAT RATINGS DO THE SLOT SITES GET FROM PLAYERS AND EXPERTS?

Finally, if you have found a slots site that you think seems appropriate, it is always a good idea to double-check what others have to say about their experiences there. To do this, you can read reviews from both players and experts.

If the site gets low or mediocre ratings then you should look elsewhere. On the other hand, if a site gets high ratings from both parties as well as meeting other personal requirements, you have probably found the right one.

The list of the best online slots sites above will give you a decent guideline as to which ones are the best. This is because their ratings are based on tests from our experts as well as the opinions of players. The higher the average rating, the higher the level of customer satisfaction.

Sometimes, though, you might want to dig a little deeper. If you have specific preferences, it is usually worth checking how a site performs against those requirements.

HOW WE RATE SLOT SITES

There are hundreds of online gambling sites operating in the UK right now so it is important that you find the perfect one for your needs.

We have reviewed hundreds of slot sites and we do not rank them based on how high their welcome bonuses are. We keep our eyes on each and every casino in order to analyse and then present all of the key features of every individual casino. These include:

• Selection of Online Slots – There are thousands of online slots in the UK, all with varying themes, RTP percentages and ways to win. A slot site can have a huge number of slots in their games library but if the slots are all from the same developers or are hand-picked to be the hardest to win slots, we will swoop in and let you know.
• Bonuses and Promotions – New customers offers, loyalty schemes, prizes and raffles, VIP club memberships.
• Bonus Terms and Conditions – Wagering requirements, minimum deposit limit, which payment methods are excluded from bonuses? Is the slots bonus redeemable?
• Site usability, reliability and mobile friendliness – Is the slots site user friendly? Do they look good and run smoothly on hand-held devices? How often does the slot site crash?
• Licensing and Security – Is the UK slot site fully licensed in its respective jurisdiction? What kind of protections are customers given, are there measures in place to protect all players and are the games safe and fair to play?
• Customer Support – How accessible and helpful is the customer support team at the UK slots site? Is there a 24/7 live chat available? Does the site have email support?
• Account Verification Time – How quickly are new accounts verified? Which documents do players need to supply to have their account verified?
• Casino Cashier – Which deposit and withdrawal options does the casino accept?

WHY PLAY ONLINE SLOTS?

Online slots allow you to play anywhere you have an internet connection. This is a convenience for many who do not have the time or desire to travel to a land-based casino.

Online slot players can also take advantage of better bonus offers, a wider range of games and the latest releases. And thanks to the UK Gambling Act, which is controlled and enforced by the UK Gambling Commission, security is high.

• Specialist sign up offers for slots players – These online slots sites attract UK slots players by offering them bonus spins when signing up. These free spins can be used to try out slots casinos and can help to increase your bank roll. There are some sites which will offer free slots spins with no wagering requirements too. Slot sites can be more appealing to established casino brands by offering better sign up bonuses for slots gamblers.
• Latest slots – from the best slots developers to the newest ones, they will often partner up with operators which specialise in online slot games. Why? Because they are more likely to attract casino players and the developers make money when their games are played. For more information, you can check out our list of the top online slots further down this guide. Other than that, online slot sites will also stock the top jackpot slots as well as numerous quality high volatility games and Megaways slot machines.
• Payment methods – in comparison with three years ago, there is now a wide range of different online payment methods which can be used for topping up casino accounts. Along with the usual methods such as debit cards, most online slot sites now accept payments via eWallets such as PayPal and payments via mobile including Apple Pay.
• Trustworthy – All of the slot websites on this page are regulated and licensed by the UK Gambling Commission. This means they are proven to be safe with top of the range security in order to protect players accounts.
• Technological advancements – Slot sites are built with the latest technology which is why the best ones are fully compatible with mobile devices. The fact that they are built with the newest technology, means that they are ultra-fast and easy to use. The ease of layout ensures that playing casino games has never been more fun.

BEST ONLINE SLOTS AND WHERE TO PLAY THEM

There are thousands of different slots to play online. Based on RTP and payouts, the SlotsHawk casino team has selected the top 10 slots for you to play in 2023. You will also find information on where you can play these.

ONLINE SLOT	RTP	PAYOUT	WHERE TO PLAY
Book of 99	99.00%	5,000x	Skol Casino
Ohh Ahh Dracula	99.00%	457x	All British Casino
1429 Uncharted Seas	98.60%	1,250x	Playzee
The Catfather	98.10%	2,251x	Yako Casino
Blood Suckers	98.00%	1,014x	Slotnite Casino
Medusa Megaways	97.63%	50,000x	Casumo Casino
Goblins & Gemstones	97.10%	38,800x	Skol Casino
Dead or Alive 2	96.80%	100,000x	Hyper Casino
Wheel of Fortune Megaways	96.46%	80,150x	Slotnite Casino
Mayan Wild Mystery	96.27%	125,000x	PlayOJO Casino

TYPES OF SLOT GAMES YOU CAN PLAY ONLINE

Online slot games have grown into arguably the most popular form of casino gambling. Due to their popularity, online slots have become increasingly sophisticated in past years.

Slot aficionados now have a riveting selection of different games to choose from. The games can be divided into different categories. Please find these slot game categories below.

VIDEO SLOTS

Video slots make up the lion’s share of the slot games currently on the market and in the libraries of slot sites. These slots are certainly the most popular variation. Video slots range from 3-reel slots to slots with 5-reels. Most video slots also offer exciting features such as wilds and scatter symbols as well as bonus rounds.

Some of our favourite video slots of 2023 include high RTP slots as well as Gonzo’s Quest, Immortal Romance and Da Vinci Diamonds.

BRANDED SLOTS

A lot of video slots are branded. Branded video slots are amongst the most popular slots online. These slots are based on the likes of movies, video games, television shows, comic books, game shows, sports themes, board games and much, much more.

JACKPOT SLOTS

Jackpot Slots get their name from the jackpots they payout. These slots can eventually payout hundreds of thousands and even millions of pounds.

Top online casinos can generate huge jackpots as a small portion of each player’s stake will contribute to the jackpot. This jackpot will continue rising until one lucky player triggers a win and scoops the lot.

Our favourite jackpot slots consist of Mega Moolah, Wheel of Wishes and Leprechauns Luck.

CLASSIC FRUIT MACHINE SLOTS

These slots mimic the classic slot machines of a bygone area; think pre 2000s Las Vegas and fruit machines in British pubs and arcades! Classic slots feature 3 reels and a single payline in the middle.

Although classic slots have taken a back seat in recent years, these games are designed to appeal to players who enjoy the simplicity of slots rather than the sometimes lairy video slots.

Standout fruit machine slots include Flaming Hot, Jackpot 6000 and Mega Joker. It is worth noting that Mega Joker offers players one of the highest RTP percentages.

MEGAWAYS SLOTS

Megaways slots were first introduced by Big Time Gaming, but they have let other game developers such as NetEnt, Blueprint Gaming and NextGen Gaming take advantage of their license.

What makes this type of slot unique is the Megaways mechanic. The Megaways engine enables a variable number of symbols on each reel that can produce hundreds of thousands of ways to win.

Today, there are a little over 100 different Megaways slot games that you can play. You can learn more in our article about Megaways slots.

SLOTS SITES SOFTWARE

There are tens of thousands of different games that you can play at different casinos and slots sites. However, did you know that it is not the online casinos themselves who design and develop the games? Casinos get their games from 3rd party casino software providers.

Casinos are willing to pay large sums of money to companies who are able to come up with elaborate and unique slot game titles.

All slots are supplied by software providers. We have listed some of the top online slot software providers below.

NETENT

NetEnt is a Scandanavian software provider and is a company with a huge reputation and a growing popularity. NetEnt are responsible for a number of popular slot games including Gonzo’s Quest, Starburst and Mega Fortune – these three online slots can be played at all of the UK slot sites on this page.

PLAYTECH

Known for producing and developing branded online slots such as Man of Steel and American Dad. Playtech’s most successful slot is Age of the Gods which spawned into a series of multiple slots – all of which offer the opportunity to trigger huge progressive jackpots.

Playtech also owns the gaming company Eyecon which produced the highly popular Fluffy Favourites slot.

Many UK casinos and slot sites will feature online slots provided by PlayTech.

MICROGAMING

Microgaming is an extremely well-known online slots provider which produces top UK slots games. They can lay claim to hundreds of online slots titles. Slots developed by Microgaming are amongst the most popular and are on offer at almost all UK slot sites.

Branded slots like Jurassic Park and Game of Thrones are Microgaming products but it is their jackpot slots which likely rank as their best slots. Mega Moolah is a hugely popular slot whilst Immortal Romance slot ranks as one of the best payout slots available to be played.

BIG TIME GAMING

Big Time Gaming is most widely associated with creating the Megaways slot mechanic. This mechanic is implemented in Megaways video slots and allows players many, many more ways in which to win – sometimes over 100,000.

Due to the increasing popularity of Megaways slot games, Big Time Gaming is now an in-demand slot developer at many UK slot sites.

PLAY’N GO

Another Scandinavian brand, Play N’ Go has been operating within the online slots niche since 2007. The company’s standout feature in their slots is the always high RTP rate.

In addition, Play N’ Go look to arm their slot games with narratives. Players get to follow an exciting story line as they play through the slot. Once the story is completed, you are then often treated to a bonus round and other exciting features.

Popular slots from this brand include Book of Dead, Legacy of Egypt and Rise of Olympus.

IGT

IGT is a slot software provider specialising in themed and branded slots. This developer is one of the oldest slot developers and has a huge amount of influence in both the online and offline casino world. IGT created many of the top slots that you will encounter if you visit a brick and mortar casino.

As for the online slot’s world, IGT are serial online slot developers and you will encounter IGT slots at all of the best online slots UK sites. From a user perspective, IGT often goes about updating and refreshing a lot of their older slot games which is rare. Most software providers prefer to develop brand new games rather than improve their older slots.

Popular IGT slots include Da Vinci Diamonds and Family Guy. You can play both of these games at most slot sites.

BLUEPRINT GAMING

Blueprint has begun to take advantage of the BTG Megaways mechanic and are developing games featuring this mechanic. Some of their successes so far include Genie Jackpots Megaways and TED Megaways.

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