Best Slots Sites UK in 2021 and the Top Online Slot Games Explained

Best Slots Sites UK in 2021 and the Top Online Slot Games Explained

Looking for the best slots sites in the UK? You’re in the right place. We’ve collected and reviewed some of the best sites to play slots in the UK, so read on to discover which one is the best for you.

If you’re an online casino fan, you know that a strong selection of slots is a must. Slots are one of the most popular game types in the UK because they are easy to get into while still providing exciting gameplay.

There are loads of options to pick from, including sites like Magic Red that offer a well-rounded experience to more specific casinos. To get a clear idea of what we mean, keep scrolling.

Photo, Brooke Cagle.

Best Slots Sites in the UK at a Glance

Casino: 🥇Magic Red
The best slot site overall for its huge library of slots for everyone’s taste; Magic Spins Tuesday free slots promotion
Number of Slot Games: 700+
Best Slot: Starburst, 96.01%
Game/RTP Score: 99%

Casino: 🥈PlayOJO
Over 40 software providers; specialty promotions like the Prize Twister and OJOplus cashback
Number of Slot Games: 600+
Best Slot: Book of Dead, 96.21%
Game/RTP Score: 98%

Casino: 🥉Sun Vegas
Regularly adds new and exciting titles with high RTPs
Number of Slot Games: 500+
Best Slot: Age of the Gods, 95.02%
Game/RTP Score: 96%

Stands out for its Megaways slots; has a variety of original titles you won’t find elsewhere
Number of Slot Games: 600+
Best Slot: Gonzo’s Quest, 95.97%
Game/RTP Score: 95%

Casino: Genesis
Two-tier welcome offer; Pragmatic Play slot tournaments
Number of Slot Games: 1000+
Best Slot: Fire Joker, 96.15%
Game/RTP Score: 93%

Photo, Hanny Naibaho.

Ranking Methodology for the Best Slots Sites UK

Variety of Slots

Not everyone enjoys playing the same type of game repeatedly, which is why there are so many types of slots.

A top slot site should offer many ways to play, from unpredictable Megaways’ titles to high-risk, high-reward jackpot slots. Branded games are another huge draw, letting you enjoy your favourite franchises in slot form.

Slot Bonuses

Even the most valuable bonuses won’t appeal to slots fans if they don’t apply to slots.

So, we always check the promotions page for bonuses like regular free spins that let players try out new slots for free. Some sites even offer free spins as part of their welcome package. Slots tournaments are another standard promotion that lets you compete with other like-minded players for impressive prizes.

Quality of Software Suppliers

Most online casinos offer hundreds——or even thousands——of slots, and the quality can vary dramatically depending on the supplier.

It’s always important to check which studios are featured on the site. Companies like NetEnt and Microgaming have developed many world-renowned slots and are good indicators of a high-quality game selection.

Payment Methods

Many of the best slots sites UK feature fast-paced gameplay where anything can happen, and players will want fast and convenient banking options to top up their accounts quickly.

A good slot casino should accept a diverse range of payment methods and process transactions almost instantly. Withdrawals should also be fast so you can get your winnings reasonably quickly.

Top 10 Best Slot Sites in the UK Reviewed

1. Magic Red; Best All-Round Slot Casino

— Over 700 slots
— Popular branded games
— Weekly free spins

Magic Red immediately impressed us with its collection of over 700 slots. From popular titles like Book of Dead to famous branded games like Game of Thrones, the slots page has enough variety for everyone to find something to enjoy.

Players can also earn free spins through the welcome bonus, and weekly Magic Spins Tuesday promotion. While the amount of spins isn’t huge, and they can only be used on Starburst, they still let you enjoy the thrills of slots for free.

NetEnt, Red Tiger, and QuickSpins are just a few of the many reputable software suppliers featured on the site. This ensures you can find fair games that utilise the latest gaming technology. There are also loads of deposit methods to pick from, including various e-wallets, cards, and bank transfers, so you can always find a convenient option for you.

2. PlayOJO; Best Slot Bonuses

— Many jackpot slots
— No wagering requirements
— Exclusive Prize Twister bonus slot

PlayOJO offers a plethora of popular titles, and many of the games here feature impressive jackpots, making it one of the best slots sites UK for 2021. Some games even feature impressive daily jackpots, perfect if you’re looking for high-risk, high-reward games. The massive list of over 40 software suppliers includes names like Yggdrasil and Play’n GO, adding to the variety and high-quality selection.

The site offers a host of valuable features you can benefit from just by playing instead of standard bonuses. For example, OJOplus pays out free money back whenever you bet, The OJO Wheel can award you free spins, and the Prize Twister is a unique slot game with various generous prizes.

All free spins you earn have no wagering requirements so that you can cash out your winnings instantly. You also have a wide range of popular deposit and withdrawal methods, including services like PayPal and Skrill and all the standard credit cards.

3. The Sun Vegas; Best Variety of Slots

— Deposit welcome bonus for slots
— Generous loyalty program
— A regularly updated slots section

Players looking for new games will find much to like about The Sun Vegas, which focuses on providing the latest titles. The slots page features over 500 slots, and you’ll come across a vast amount of new games. From Megaways and jackpot titles to branded games, there’s always something new to try.

The site only offers two promotions with its welcome deposit bonus and free spins. Thankfully, both of these cater to slot players, as slots contribute the most towards wagering requirements and loyalty points.

While the banking options cover many card services, there aren’t many alternative methods. The site is also partnered with Playtech that provides many of the slots, meaning you can expect first-class games.

4. Grosvenor; Best Megaways Casino

— Original slots not available on other sites
— Over 70 Megaways games
— Frequent free spins bonuses

Megaways slots give you a whole new way to play slots, and Grosvenor has one of the largest collections of this game type. From Gonzo’s Quest to Monopoly, there are loads of Megaways titles from top providers like Red Tiger with exciting reel-modifiers.

The large selection of promotions includes many offers for slots fans, such as weekly Drops and Wins and a free daily Wheel of Wins. Regular free spins are also available for certain games, giving you loads of bonuses tailored towards your favourite game type.

Grosvenor also offers a variety of original games that you won’t find elsewhere. Despite all the benefits, the site’s selection of payment methods is small, only including cards, bank transfers, PayPal and Paysafecard.

5. Genesis; Best Welcome Bonus for Slots

— Welcome offer includes loads of free spins
— Weekly promotions
— Collection of over 1,000 slots

At Genesis, new players can appreciate the attractive welcome package that includes loads of free spins alongside a generous deposit bonus. Once again, the spins only apply to Starburst, a famous slot by the renowned NetEnt studio.

Other featured providers include Pragmatic Play, with their games being featured exclusively in the site’s generous slots tournaments. As a bonus, you can claim weekly free spins to try out new games.

The site offers a massive selection of payment methods, letting players choose the most convenient one for them. From Euteller and PayPal to Apple Pay, Genesis has one of the widest ranges of banking options.

6. Leo Vegas; Most Trusted Slots Casino

— Multiple awards from top authorities
— Over 80 jackpot slots
— No deposit free spins bonus

Leo Vegas is a tried-and-trusted online casino that has received multiple awards from the Global Gaming Awards and EGR Nordics. The site offers a reliable and straightforward casino experience with its collection of nearly 700 slots, including many fan-favourites from studios like Play’n GO and NetEnt.

New players can claim free spins for Book of Dead with no deposit requirements, letting everyone start playing instantly. Other promotions include LeoJackpot, where you can choose a jackpot tournament with risks that suit your preferences.

Most players can quickly deposit and withdraw with the various banking options. While the selection covers popular payment services like PayPal, there are fewer methods than with some other casinos.

7. Mansion; Biggest Tournaments

— Regular tournaments with jackpots and daily prizes
— Weekly bonus draws
— Accepts Bitcoin deposits for slots

Mansion is the best destination if you’re looking for expansive tournaments with loads of prizes. Winning on qualifying slots will earn you points to climb up the leaderboard, and daily drops are up for grabs, so everyone has a chance to win.

The slots catalogue impressed us with over 800 titles from reputable suppliers like Playtech, Microgaming, and iSoftBet. This includes everything, from Megaways to jackpot slots, so everyone can find something to play.

Mansion offers many payment options. Whether you prefer e-wallets, cards, or mobile payments, this site caters to all types of players.

8. Jackpot Village; Most Slot Software Studios

— Over 100 slots software suppliers
— A generous welcome package with free spins
— Many bonus cash slots promotions

Another of the best slots sites UK for 2021 is JackpotVillage, which has the most variety when it comes to software suppliers. The 100+ selection includes big names like Red Tiger and Play’n GO alongside smaller studios like Inspired and Hurricane Games. Therefore, players can explore a diverse range of slot styles and features.

The valuable welcome package is another massive draw for slots fans. New players will receive a steady stream of free spins and deposit match bonuses over their first three deposits so that they can jump right into the action.

There are also many other promotions, such as jackpots and giveaways, to take part in. You can withdraw your winnings and top up using an impressive amount of 19 payment methods for a hassle-free experience.

9. SlotsHeaven; Best Branded Slots Casino

— Many branded slots from popular franchises
— Two weekly slot bonuses
— Good variety of payment methods

SlotsHeaven caters to players looking for the best-branded slots, offering titles from RoboCop, The Matrix, Rocky, and many other famous brands. These games provide a unique gameplay experience with recognisable characters and exciting mechanics.

The trade-off is that the slots catalogue is much smaller than the other sites. Despite this, you can still play high-quality games from leading studios like Playtech, specialising in branded slots.

There are two weekly promotions to claim, giving you a constant income of free spins and cashback for playing slots. When it comes to the deposit options, players can use many methods, from credit/debit cards and Skrill to a bank transfer, paysafecard, etc.

— Over 1,000 slots
— Many software providers to choose from
— New tournaments every day

Red Kings Casino has the most extensive collection of slots available, with well over 1,000 games to pick from. The catalogue includes famous titles like Book of Dead and Gonzo’s Quest from NetEnt alongside branded slots. No matter your preferences, there’s always something new to find and try.

Unfortunately, there are no regular bonuses that award free spins. The site caters to more competitive players by offering new tournaments every day.

Overall, Red Kings Casino provides a convenient and fun experience, making it another of the best slots sites UK for 2021. Players can quickly make their deposits with a decent selection of payment methods, including popular e-wallets like PayPal and Skrill.

Photo, Ben Lambert.

FAQs on the UK’s Best Slot Sites

Are Online Casinos Legal in the UK?

Yes, online casinos are legal in the UK, meaning you can safely play slots online. All the sites on our list are licensed by the UK Gambling Commission, meaning they are regulated and held to industry safety standards.

How Do I Play Online Slots?

Online slots are easy to learn, and they work just like a physical slot machine. Once you’ve chosen a bet amount, simply click the play button to spin the reels.

Each game has its own symbols and bonus features, and landing certain combinations can lead to a win. Most slots have a help menu that explains the bonus features and shows the exact paylines you need to land in order to win.

What Prizes Can I Win from Playing Slots?

Almost all slots pay out in real money that is added to your account on the site. Some casinos offer unique slot games that can award distinctive prizes, such as PlayOJO’s exclusive Prize Twister that can grant scratch cards or free spins.

What Are the Best Slot Sites UK?

While each best slot site has its own offerings that make it stand out, some cater to a broader audience. Casinos like Magic Red and The Sun Vegas provide a diverse slots catalogue and generous bonuses that everyone can benefit from.

What Is Slot RTP?

RTP stands for the Return to Player percentage that tells you how much of your total bet amount you could earn back while playing. This is a theoretical estimate that usually can only occur after playing a considerable amount of spins.

What Are Some of the Best Online Slots?

Some of the most widely played online slots are Book of Dead and Starburst. You can find these games on almost every slot site, and they are frequently used as the qualifying slot for free spins bonuses.

Other popular titles include Gonzo’s Quest Megaways and Divine Fortune, some of the best Megaways and jackpot slots, respectively.

What Do I Look for in a Legitimate Online Slot Providing Casino?

No one wants to start playing at an online casino only to be scammed out of their money. Thankfully, anyone can quickly determine if a site is legitimate by looking at the following features:


While not every online casino needs to be based in the UK, they all need to be licensed and regulated by the British Gambling Commission. Almost every licensed slots site will display its licensing information at the bottom of the homepage.


Security features, like SSL encryption, have become a standard across most slot sites. Make sure to check a site’s FAQ section or contact customer support to find out what security technology they use to protect your data.

Software Suppliers

If a site features games from reputable software suppliers, you can trust the games to be 100% fair. Companies like NetEnt, Play’n GO, and Red Tiger have a strong reputation and are staples of fairness across online casinos.

Can I Play Other Games at Slot Sites?

Yes, almost all online casinos offer table games and live casino games alongside their slots catalogue. You can easily view available game types by visiting the games section.

Photo, Brooke Cagle.

Key Takeaways: Best Slot Sites UK

Thanks to its extensive collection of games and bonuses, Magic Red takes the title of the best slots sites UK for 2021.

The site accommodates both new and experienced players by offering free spins weekly on top of its welcome package. Everyone can jump in and start playing any of the 700+ titles, including Megaways, jackpot slots, and branded games.

PlayOJO and The Sun Vegas are also great picks that fall just behind Magic Red.

PlayOJO’s unique no wagering bonuses will appeal more to some players, while The Sun Vegas offers a competitive catalogue of the latest slots. While these two sites cater to specific preferences, Magic Red still has the best all-round experience.

The site excels in all the categories we used for our rankings. From its variety-filled slots list to its many trustworthy software suppliers, there’s always something to try. Of course, it also has all the essential features of an excellent online casino with many payment methods and valuable promotions.

Photo, Goh Rhy Yan.


Gambling isn’t a venture to engage in if you have financial troubles due to the risks involved. Don’t forget the famous catchphrase: the house always wins.

Suppose you’re struggling with a gambling addiction or know someone who does, contact the National Gambling helpline today via 0808-8020-133. There are several advisors available to help make gambling safe for both you and your loved ones.

Don’t forget that gambling websites are rated 18+ only. More so, you may be unable to access the casino sites listed here, so ensure you check your local laws for online gambling and its legality. We offer reader-supported and independent reviews. While we may earn commissions for recommendations in our website guides, it won’t affect our ranking method. We’re committed to providing the best gaming experience for all players.

chipmonkzslots reviews chipmonkzslots reviews 23 hr

Big Cat Rescue Megaways Slot Review – Red Tiger Gaming

Big Cat Rescue Megaways Slot Review – Red Tiger Gaming
OnlineCasinoSpace OnlineCasinoSpace 18 days

No Deposit Bonus for Canadian Players 🇨🇦 Sign up & get 20 Free Spins on Book of Dead Claim bonus: Promo code: 20NDB

No Deposit Bonus for Canadian Players 🇨🇦

Sign up & get 20 Free Spins on Book of Dead

Claim bonus: 

Promo code: 20NDB
Casino Leader Casino Leader 5 days

Claim 150% Match Bonus plus 20 Free Spins on Latest Slot Games at Jackpot Capital Casino