The Rise of Online Slots in the UK: Your Ultimate Guide to the Best Slot Sites
Online slots are experiencing a major boom in popularity in the UK, and for good reason. With a seemingly never-ending conveyor belt of slot sites to choose from, players are often left wondering which ones are worth signing up for. That’s where we step in. Our dedicated team of online casino experts has years of experience in the industry and has played at all of the best online casinos in the UK.
In this guide to the best slot sites, we have narrowed down our top picks for you, showcasing a popular selection of slot games from top software providers and ensuring the best gaming experience. We also looked at what offers and payment options are most suited for slot players.
Using our detailed The Sun Factor rating system, we have managed to select the top 10 best slots currently available to players in the UK. We highlight what makes them stand out, as well as any bonuses that might be worth claiming. Our team of casino experts adheres to a strict set of criteria when reviewing an online casino, assigning ratings in several categories to create an overall score for the operator.
When assigning these scores, our writers are encouraged to share their personal experiences with a website and provide an honest analysis of the site’s pros and cons, along with their opinion on whether you should sign up for the site.
A Closer Look at the Top 10 Best Slot Sites
1. VideoSlots
Number of slots: 8,000+
Number of software providers: 130+
Exclusive slots: No
Payout options: Visa/Mastercard, Skrill, Neteller, Apple Pay, Trustly, PayPal, PaysafeCard, Bank Transfer
Slot tournaments: Yes
Unsurprisingly, a casino called VideoSlots puts a real emphasis on its slot selection, with over 8,000 titles. Players can easily flick through the slots on offer thanks to an intuitive website design and filtering systems. The list of providers includes big names like Pragmatic Play and Play’n Go, ensuring there’s something for everyone. One standout feature is the ‘Battle of Slots’ tournament, allowing players to compete for huge prizes. With an excellent welcome bonus of 100% on first deposits up to £200, VideoSlots is our number one choice.
2. Duelz
Number of slots: 1,000+
Number of software providers: 50+
Exclusive slots: Yes
Payout options: Visa/Mastercard, Skrill, Neteller, Apple Pay, Trustly, PayPal, PaysafeCard, Bank Transfer, MuchBetter
Slot tournaments: Yes
While Duelz may not have the largest number of slots, it compensates with a unique fantasy theme and engaging bonuses. The Duelz Cash Tournaments allow players to win £1,500 daily, making it an attractive option. The site also offers exclusive titles and a welcome bonus worth £100 plus 100 free spins.
3. Casimba
Number of slots: 2,600+
Number of software providers: 90+
Exclusive slots: Yes
Payout options: Visa/Mastercard, Skrill, Apple Pay, Trustly, PayPal, PaysafeCard, Bank Transfer
Slot tournaments: Yes
Casimba is a favorite among UK players, featuring over 2,600 titles from creative developers like Relax Gaming and Nolimit City. While the bonus selection is slightly limited, the operator runs limited-time tournaments and offers a generous welcome bonus of up to £200 and 50 free spins.
4. Mr Vegas
Number of slots: 8,000+
Number of software providers: 180+
Exclusive slots: No
Payout options: Visa/Mastercard, PayPal, Neteller, Skrill, Bank Transfer
Slot tournaments: Yes
Despite its slightly dated design, Mr Vegas boasts a massive catalogue of over 8,000 titles. The wager-free welcome spins and a 100% bonus up to £200 are particularly appealing. Regular tournaments also offer players the chance to win big cash prizes.
5. 32Red
Number of slots: 2,000+
Number of software providers: 55+
Exclusive slots: No
Payout options: Visa, Mastercard, Bank Transfer, Payz, Trustly
Slot tournaments: Yes
A well-known name in the market, 32Red offers over 2,000 slots from established developers. The operator runs regular tournaments and promotions, although players should be aware of higher wagering requirements on some promotions.
6. Betrino
Number of slots: 2,300+
Number of software providers: 55+
Exclusive slots: No
Payout options: Visa/Mastercard, PayPal, PayViaPhone, Apple Pay, Instant Transfer, PaysafeCard, Payz, Neteller
Slot tournaments: No
Despite its name suggesting a focus on sports betting, Betrino offers a balanced selection of bonuses for both sports bettors and casino players. The site features a good mix of slots from major providers and smaller studios, although it lacks casino-based tournaments.
7. NetBet
Number of slots: 4,000+
Number of software providers: 90+
Exclusive slots: No
Payout options: Mastercard, Visa, PayPal, PaysafeCard, Trustly, Payz, Apple Pay, Google Pay
Slot tournaments: Yes
NetBet has emerged as a favorite due to its user-friendly website and extensive filtering options. The site features a healthy selection of jackpots and regular promotions, including a welcome bonus of 500 free spins.
8. Unibet
Number of slots: 4,200+
Number of software providers: 100+
Exclusive slots: No
Payout options: Mastercard, Visa, PayPal, PaysafeCard, Trustly, Payz, Apple Pay, Google Pay
Slot tournaments: Yes
Unibet is synonymous with quality, boasting over 4,200 games from top developers. The site features exclusive titles and a variety of bonuses, including a welcome offer where new players can deposit £10 to receive £40 in bonuses.
9. Barz Casino
Number of slots: 2,600+
Number of software providers: 100+
Exclusive slots: No
Payout options: Visa, Mastercard, PayPal, Skrill, Neteller, PaysafeCard, Apple Pay, MuchBetter
Slot tournaments: No
Barz Casino stands out with its rock-inspired theme and generous welcome bonus of £300. The site features over 2,600 slots from major developers, although it could benefit from more tournaments and promotions.
10. RedAxePlay
Number of slots: 2,000+
Number of software providers: 55+
Exclusive slots: No
Payout options: Visa/Mastercard, PayPal, PayViaPhone, Apple Pay, Instant Transfer, PaysafeCard, Payz, Neteller
Slot tournaments: No
RedAxePlay offers a slick design and a solid range of video slots, jackpot titles, and Megaways. However, it does charge a 1% fee on withdrawals, which is higher than many other top slot sites.
How We Rank Slot Sites
To ensure we highlight only the best slot sites in the UK, our expert team follows strict criteria for all their online casino reviews. The following are the most important factors we consider when recommending slot sites:
Selection of slot games: A high number of slots is great, but the quality of titles and variety of themes are equally important.
Top quality software providers: We prioritize casinos that partner with leading developers like Pragmatic Play and Play’n Go.
Theme and type variety: A wide range of themes keeps the gaming experience fresh and engaging.
Slot RTP: We check the RTP of top games to ensure they offer attractive returns for players.
Free spins and bonuses: A strong selection of bonuses enhances the player experience.
Convenient payment methods: We favor casinos with a variety of payment options, including e-wallets and prepaid options.
Responsible gambling: All reviewed casinos are licensed by the UKGC and offer responsible gambling resources.
Best Slot Site Bonuses for UK Players
Online bonuses are essential for the modern online slot experience. Here are some common types you’ll encounter at UK casinos:
Free spins: Allow players to enjoy favorite slots without using their own funds.
No deposit bonuses: Provide players with bonus funds without requiring a deposit, perfect for trying out a casino.
Reload bonuses: Match a player’s deposit with additional bonus funds.
Cashback bonuses: Reward a percentage of losses back to players as bonus funds.
Welcome bonuses: Exclusive promotions for new customers, often combining various bonus types.
Loyalty programs: Reward returning players with exclusive perks and bonuses.
Types of Online Casino Slot Tournaments
Slot tournaments are a popular way to engage players. Here are the most common types:
Promotional and network tournaments: Run by game developers to celebrate new releases, often with huge prizes.
Free-to-play tournaments: Allow players to compete for prizes without any entry fee.
Scheduled tournaments: Operate for a limited time, with players competing for leaderboard positions.
Survivor tournaments: Players in the bottom positions are eliminated, with the last players standing competing for prizes.
Most Popular Online Slots Among UK Players
With so many fantastic online slots available, here are ten titles currently leading the way in popularity:
Slot Title
RTP
Max Win
Big Bass Bonanza
96.71%
£210,000
Book of Dead
96.21%
£250,000
Pirots 3
94%
£1,000,000
Starburst
96.1%
£50,000
Gates of Olympus
96.5%
£500,000
Money Train 4
96.1%
£900,000
Bonanza
96%
£240,000
Gonzo’s Quest
95.97%
£93,750
Sweet Bonanza
96.49%
£2,110,000
Piggy Riches Megaways
95.71%
£107,470
Popular Slot Themes at Online Casinos
Fishing Slots
Fishing-themed slots have surged in popularity, with titles like Big Bass Bonanza leading the charge.
Adventure Slots
Adventure-themed slots, such as Gonzo Quest, offer quests and explorations for players.
Viking Slots
Viking-themed slots, like Vikings Go Berzerk, capitalize on Norse mythology and striking imagery.
Pirate Slots
Pirate-themed slots, including the Pirots series, provide swashbuckling adventures on the reels.
Animal Slots
Animal-themed slots, such as The Dog House, appeal to players looking for cute and fun graphics.
Horror Slots
Horror-themed slots like Blood Suckers II cater to players who enjoy a spooky experience.
Fantasy Slots
Fantasy slots, including Starlight Princess, allow for imaginative gameplay and magical themes.
Fruit Slots
Classic fruit-machine-inspired slots remain popular, with titles like Fruit Shop offering nostalgia.
Egyptian Slots
Egyptian-themed slots, such as Book of Dead, continue to captivate players with their mystery and grandeur.
Christmas Slots
Christmas-themed slots, like Fat Santa, bring festive cheer during the holiday season.
Halloween Slots
Halloween slots, such as Halloween Jack, are popular during the spooky season.
Sci-Fi Slots
Sci-fi slots transport players to other worlds, with titles like Starburst leading the way.
Irish Slots
Irish-themed slots, like Rainbow Riches, tap into the cultural imagery of luck and fortune.
Pop Culture Slots
Pop culture slots draw inspiration from movies and TV, with titles like The Goonies capturing player interest.
Facts About Online Casinos and Slots in the UK
The UK gambling industry is booming. Here are some interesting stats:
Online slots generated a Gross Gambling Yield of £3.2 billion in the year ending 2023.
The average slot session lasts around 17 minutes, with an increase in sessions lasting an hour or more.
Revenues are projected to grow to £11.71 billion by 2025.
The UK government introduced a £2 minimum stake for players under 25 in September 2024.
Approximately 36.43 million active online gambling accounts exist in the UK.
How We Evaluate Online Casinos
Our dedicated online casino experts work tirelessly to provide the best reviews. We follow strict criteria to rank casinos based on various factors, including slot selection, bonuses, licensing, and security. Non-negotiable factors include holding a UKGC license, valid SSL encryption, clear terms & conditions, and robust responsible gambling resources.
Q&A About the Best UK Slot Sites
1. What’s the most popular slot game in the UK?
Titles like Big Bass Bonanza, Book of Dead, and Starburst are frontrunners.
2. Which slot has the highest RTP?
Slots like Blood Suckers and Madame Mystique Megaways boast RTPs over 98%.
3. Which slot site has the biggest selection of games?
VideoSlots and Mr Vegas lead with over 8,000 titles.
4. Are there any bonuses for new players on slot sites?
Yes, all top UK slot sites offer welcome bonuses for new customers.
5. How do I choose a safe slot site?
Only play at casinos licensed by the UKGC to ensure safety and compliance with industry standards.
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Remember to Gamble Responsibly
A responsible gambler is someone who:
Establishes time and monetary limits before playing
Only gambles with money they can afford to lose
Never chases their losses
Doesn’t gamble if they’re upset, angry, or depressed
For help with a gambling problem, call the National Gambling Helpline on 0808 8020 133 or visit GamStop to be excluded from all UK-regulated gambling websites.