Slot Sites – UK Online Slots Ranked by RTP & Bonuses 2023

1. All British Casino (Book of Ra Deluxe) – Enjoy the best online slots
2. Fun Casino (Major Millions) – The best of British fun
3. Great Britain Casino (Gonzo’s Quest) – Generous bonuses and promotions
4. BritainBet (Irish Luck Jackpot) – Spiffing good fun
5. Slots n’Play (Fire Joker) – A top-notch online casino
6. 10bet (Wild Wild Riches) – Filled with winning numbers
7. PlayOJO (Blood Suckers) – Spin the reels and win
8. Spin and Win (Cleopatra) – The slot winner’s choice
9. Grosvenor (Fishin' Frenzy) – The UKs finest casino brand
10. Casumo (Book of Dead) – Great variety of top tier slots
11. Betway (Immortal Romance) – Grab yourself a bonus
12. Magic Red (Wolf Gold) – Landing on lucky pay lines
13. 32Red (Mega Moolah) – The colour of money
14. Unibet (Big Bass Bonanza) – A passion for the slots
15. Slots Magic (Fluffy Favourites) – Pulling wins out of a hat
16. William Hill (Pixies of the Forest) – Unmatched UK slot variety
17. Mr Green (Thunderstruck II) – The man with a slots plan
18. Betfred (Age of the Gods) – Slots with High RTPs

 

UK Slot Sites – Main Features

The slot sites available in the UK undergo a string of tests to ensure they are worthy of being on the list. These tests include safety and security, licensing approval, the range of games available, payment methods and mobile compatibility. The online slot sites listed below all meet the extensive criteria and are highly recommended.

All British Casino – Exclusive Offers and Great Selection of Themed Slots

Choosing from the most popular slot sites often comes down to the types of slots available at a casino, and All British Casino makes it easy to find a theme that’s right for you. The slots suite provides a scroll page of slot themes such as Game Shows, Sports, Animals, Movies and Megaways, so you can easily navigate to the type of game that suits you. You can make a selection by software providers like Microgaming or Evolution and spin the reels quicker than ever.

All British Casino houses over 150 slot machines, including some pub slots. These are slot machines similar to those you’d find in a pub or classic brick-and-mortar casino and are a novel way to try and win a jackpot. Not every online casino has them!

New players can also trigger a 100% welcome bonus up to £100 and get 10% cashback when their balance falls below £10. Other deals include the recurring Marvellous Midweeks offer for depositing players and daily slots tournaments.

Recommended slot: Big Piggy Bonus – 95% RTP

Welcome bonus for new players only. Max bonus is 100% up to £100. Min deposit is £20. Wagering is 35x bonus. Maximum bet with an active bonus is £5. See full terms here.

 

Fun Casino – Exciting Slots and Excellent Customer Service

Even with a name like Fun Casino, it’s important to remember that everyone deserves high customer service standards. Thankfully, Fun Casino is one of the most well-renowned slot sites for customer satisfaction through its live chat, phone, and email support service options. Live chat is the go-to option for most players, but email support is excellent when dealing with complaints.

Fun Casino provides players with an alternative disputes resolution service, eCOGRA, which operates as an unbiased adjudicator. All this means you can play online slots with peace of mind at Fun Casino. The interface is bright and bubbly, and there are over 100 slot machines to choose from, plus pub slots, video slots and Slingo. Players can get a 100% match deposit up to £123 when they sign up. The wagering requirement is 50x, and the maximum stake is £5.

Recommended slot: Rabbit Hole Riches – 96.23% RTP

Welcome bonus for new players only. Max bonus is 100% up to £123. Min deposit is £10. Wagering is 50x bonus. Max bet while playing with a bonus is £5. Full terms apply.

 

Great Britain Casino – Extensive Slot Collection and Free Spins Bonuses

If you’re looking for free spins at online slot sites, then Great Britain Casino is the site for you. New players can trigger up to 500 free spins simply by signing up and get between 50 and 500 free spins each week when they make further deposits. Collect trophies as you play to unlock as many as 20,000 free spins and get up to 500 spins on all Trophy Mega Reels games. Now that’s a lot of free spins, but players should be aware that all these offers come with 65x wagering requirements and a max payout equal to your deposit up to £250. Still, it’s the perfect set of bonuses to get you spinning today!

Great Britain Casino is primarily a slot site and hosts over 2,500 games across its casino suite. You’re almost guaranteed to find a game that suits you. Popular slots include the classics like Starburst, Great Rhino and Rainbow Riches, as well as big-jackpot games Temple of Iris, Shaman’s Dream 2 and Fireworks Frenzy.

Recommended slot: Rainbow Riches – 95% RTP

New players only. £10 min fund. Maximum bonus conversion equal to lifetime deposits (up to £250) to real funds. 65x wagering requirements. See full terms here.

 

BritainBet – Showcasing More than 60 Casino Software Providers

BritainBet is a contemporary online casino that provides the perfect platform for new, up-and-coming slot developers. More than 60 software providers have active games at BritainBet’s casino, ranging from industry giants like Evolution and Barcrest to new developers like Gamevy and Gameburger Studios. This means players are guaranteed a wide range of slots styles, covering everything from 3- and 5-reel games to cluster wins, extra bonus rounds, stunning visual graphics, and unique soundtracks. No wonder it’s considered one of Britain’s premier slot sites.

There are more than 850 online slots at BritainBet, including classics like Starburst and Gonzo’s Quest. New games drop every week, and BritainBet has a good Rewards Programme where players complete missions to earn points and win prizes.

New players get a 200% bonus up to £50, which comes with a 50x wagering requirement. This means you can start your slots journey with £75 in your account simply by making a minimum deposit of £25. One minor downside to BritainBet is a withdrawal fee of 1%, capped at £3 per withdrawal.

Recommended slot: Gonzo’s Quest – 96% RTP

New players only. Wagering occurs from real balance first. 50X wagering the bonus. Available on selected games only. Bonus valid 30 Days from receipt. Full T&Cs apply.

 

Slots n’Play – Exceptional Slots Range and Monthly Prizes

Slots n’Play is a standout choice for slots enthusiasts seeking a welcome offer with low wagering requirements. This casino platform shines with its sign-up deal, offering players up to £100 and 100 free spins over their first four deposits. These bonuses are available with deposits between £20 and £50 each time. The lower-than-average wagering requirement of x35 makes Slots n’Play a very appealing choice among this list of online slot sites.

Though the casino may not boast the largest games library, it offers an impressive range of slots, including popular titles like Twin Spins, Gonzo’s Quest and Big Bass Bonanza. Regular players are given the opportunity to enter monthly Drops & Wins prizes, as well as Play’n GO’s impressive prize pool.

Recommended slot: Big Bass Bonanza – 96.71% RTP

New players only. Offer valid upon 4 deposits. Min deposit £20. Welcome package split over 4 deposits. 35x wagering applies. Max bet limitations per spin apply: £4. See full terms here.

 

10bet – Dominating the Slot Scene with over 1,000 Games

10Bet is more commonly known for its sports betting range, but in recent years the casino has also grown to be one of the most popular slot sites in the UK. Slots players have access to an eye-watering 1,000+ slots, which include Drops & Wins games, Megaways games and Jackpots. It’s these jackpots that have players coming back to 10Bet. The progressive pots regularly stray into the millions of pounds and include classic titles like Wheel of Wishes, Mega Moolah Isis and Book of Atem.

New players can get 50% matched on their first deposit up to £50 plus 50 free spins, both with a 40x wagering requirement. Other deals include £5 back for spending £75 on a preselected slot and a chance to enter the £2m monthly prize pool for Drops & Wins slots.

10Bet has a dedicated email, phone and live chat service for all-round customer support. There’s also a good range of payment options, including e-wallets like Skrill, NETELLER and Trustly. Withdrawals start from as low as £1, and processing times typically take one day.

Recommended game: Floating Dragon – 95.6% RTP

New customers only. Wager bonus 40x within 15 days. Max winnings = 10x bonus. Free spins validity: 7 days. Free spins max winnings = £100. Stake contribution per eligible games. Full T&Cs apply.

 

PlayOJO – Unique Slot Boosts with OJOplus Membership

PlayOJO is one of the most social casinos you can access in the UK. Its special offers revolve around playing alongside friends and fellow gamers, and the big focus is on slots and bingo.

This modern slots site offers 50 free spins to all new players with no wagering requirements, to be played on the iconic Book of Dead slot, with each spin valued at 10p. To qualify, you must make a minimum £10 deposit.

Outside of this deal, further slots boosts include cashback via the OJOplus membership, extra free spins on the OJO Wheel, and entry to the £25,000 Mega Twister prize draw. Plus, the exclusive ‘Hot or Cold’ feature helps players identify the slots currently offering more regular payouts.

PlayOJO recently dropped the exclusive slot Super Wild 27 into its suite. It’s a classic three-reel slot with 27 paylines, and players get cash back to their OJOPlus account every time they spin! With a slick lobby and good customer service, PlayOJO is quickly becoming one of the UK’s most popular slot sites.

Recommended game: Super Wild 27 – 85.08% - 97.97% RTP

First deposit only. 50 free spins on Book of Dead slot. Free spin valued at £0.10. See full terms here.

 

Spin and Win – Slot-Focused  Site with Strong Commitment to Responsible Gaming

As one of the well-known slot sites, Spin and Win places online slots in full focus for players, with more than 800 games available across its casino lobby. Players should have no problem deploying the lucrative welcome bonus on their choice of slot game. Experienced slot players, who don’t mind fulfilling high wagering requirements, can leverage the generous 100% matched deposit up to £500 offer that comes with a 40x wagering requirement. The minimal deposit threshold is a mere £10, providing an opportunity for newcomers and players with a limited budget to still benefit from the 100% match. Additionally, Spin and Win offers a second deposit bonus of 50% up to £200.

For those seeking variety, Spin and Win also hosts roulette games, a range of scratchcards, arcade games, and traditional table games like blackjack and baccarat. Slots remain king here, though, and the Jackpot Vault is well worth viewing for players seeking a big win.

With a comprehensive Safer Gambling section, Spin and Win displays commendable responsibility towards its players. Here, players can set deposit limits, access support, self-exclude, and learn how to take a break when needed.

Recommended game: Wild Koi Progressive – 94% RTP

First deposit only (min £10). Max. bonus £500. Valid 7 days on selected slots. 40x wagering on the sum of deposit. See the full T&Cs here.

 

Grosvenor – A Go-To Destination for Megaways Slots Online

Megaways is one of the most profitable slots types in the UK, paying out millions of pounds to players across the country each year. Players regularly track down new Megaways games because of the unique number of paylines they feature. Grosvenor is one of the quality slot sites to end up in, thanks to the many Megaways slots housed in the casino suite. This includes titles like Rainbow Riches Megaways, Monopoly Megaways and Gonzo’s Quest Megaways, where players can win £250,000 on one spin across 117,469 paylines.

Recommended slot: Rainbow Riches Megaways – 96% RTP

New customers only. Minimum deposit and maximum bonus apply. Playable on selected games. Wagering requirements apply. Maximum win £2000. Full terms apply.

 

Casumo – Diverse Casino Games Selection Targeting Slot Enthusiasts

Casumo is a standout online casino that offers a comprehensive selection of slot games, perfect for those who prefer focusing on the reels. Recognising that not every player is looking for a colossal welcome offer, Casumo provides a more accessible bonus for those on tighter budgets. A deposit match of 100% up to £25, complemented with 20 bonus spins on the Sahara Riches Cash Collect slot, gives new players a warm welcome and proves Casumo’s strong reputation among slot UK sites. The minimum deposit is a comfortable £10, and the wagering requirement stands at a reasonable 30x.

Recommended game: Sahara Riches Cash Collect – 95.67% RTP

New customers only. Opt-in required. 20 Bonus Spins on “Sahara Riches Cash Collect” and 100% deposit bonus up to £25 on first deposit. Min deposit £10. Max. £5/spin or £0.50/line. Full T&Cs apply.

 

Betway – Offering a Choice of Welcome Bonuses and Exciting Must Win Jackpots

Betway provides a choice between several welcome bonuses upon signing up. Slot lovers can benefit from a no wagering requirement bonus. They can stake £10 and get 100 spins on the iconic Big Bass Bonanza slot. New players also get a spin on the Wheel of Millions and can start earning points in the Rewards Club for even more spins. Unfortunately, most Betway promotions require a player to log in first to see them, potentially putting off newcomers who want to know what they’re getting before they sign up.

Recommended game: Tippy Tavern – 96.22% RTP

New customers only. Opt-in required. 100% match bonus up to £50 on 1st deposit of £10+. 50x bonus wagering applies as do weighting requirements. Offer valid for 7 days. See full terms here.

 

Magic Red – Quality Slot Titles from Leading Software Developers

Having the flexibility to play slots online can often come down to payment options. Casinos that fail to offer an extensive range of deposit and withdrawal methods can get left behind. This is not the case with Magic Red, which offers a wide range of payment options to its players. Alongside bank cards like Visa and Mastercard, Magic Red accommodates numerous e-wallets like Trustly, Skrill, NETELLER, AstroPay, and PayPal.

Recommended Slot: Bison Blocks – 96.05% RTP

New players only. Minimum deposit £20. Offer valid for 24 hrs. Wagering requirement x35. Full terms apply.

 

32Red – Impressive Collection of WowPots

For those seeking more than just a familiar logo, 32Red online casino offers one of the biggest arrays of slot games. Slots are what 32Red does very well, and ensuring fairness in its games is a priority. Its commitment to fair play is underpinned by the eCOGRA’s Safe and Fair Seal, which means Returns to Player rates, volatilities, and jackpot payouts can be trusted.

Recommended game: Thunderstruck II – 96.65% RTP

New accounts only. Min £10 deposit. Debit card only. 50x wagering on bonus. Super Spins wagering 30x. Game contributions vary. Max stake applies. Full T&Cs apply.

 

Unibet – Great Variety of Slingo Games and Progressive Jackpots

Slingo combines aspects of bingo and slot machines to produce gripping gameplay and big jackpots for players of all experience levels. Unibet is one of the most popular slot sites for Slingo in the UK, thanks to its eye-watering number of games available. There are over 40 Slingo games to choose from, including iconic titles like Rainbow Riches and Deal or No Deal, while players can also play Unibet exclusives such as Tipping Point Slingo.

Recommended slot: Slingo Fire & Ice – 96.4% RTP

New customers only. Min. deposit £10. Money back as casino bonus. Bonus expires after 30 days. Wagering requirements apply: 50x. Full terms apply.

 

Slots Magic – A Premier Slot Site for VIP Rewards and Other Attractive Promotions

Slots Magic is the perfect destination for slot enthusiasts seeking a top-tier VIP programme. The VIP Club offers an array of exclusive benefits only available at quality slot sites and tailored for slot aficionados. This includes a personal account manager, personalised rewards, high-end gifts such as holidays to Paris and Dubai, and the chance to participate in exclusive VIP slot tournaments.

Recommended game: Snake Arena – 96.25% RTP

Automatically credited upon deposit. Cancellation can be requested. First deposit only. Min deposit £10. Max bonus £50. Spin Value: £0.10. Max Extra Spins: 50. See full terms here.

 

William Hill – An Array of Slot Titles Exclusive to the Brand

Slots enthusiasts keen on hitting impressive online jackpots will find William Hill casino a true treasure trove. The casino boasts various exclusive games, contributing to a unique experience that includes specialised ‘Made for You’ games and player-specific promotions. What’s more, there are some exclusive Vegas Millions jackpots in the William Hill suite that pay out hundreds of thousands of points.

Recommended game: Angel Princess Vegas Millions – 93% RTP

New customers only. Opt in required. 1x per customer. Min £10 stake. Max 100 free spins at 10p per spin. Free Spins expire 24 hours from issue. Full T&Cs apply.

 

Mr Green – No Deposit Welcome Bonus and Vast Collection of Slots

Mr Green is one of the few casinos that offer a no-deposit welcome bonus. Simply sign up at Mr Green casino, create a profile, and receive 20 free spins. A 35x wagering requirement on your winnings makes it the perfect no-deposit bonus for new players who want to test the slot games before depositing real money.

Recommended slot: Lucky Mr Green – 96.04% RTP

New customers only. Opt-in required. 1x per customer. Free spins on Lucky Mr Green only. Max. 20 free spins at £0.10/spin with 35x wagering. Spins expire 72 hours from issue. Full terms apply.

 

Betfred – Quality App to Play Online Slots on the Go

Betfred casino’s app is a prime example of how a top-tier online slot site can create an equally impressive mobile experience. Rated highly on both iOS and Android platforms, this casino app proves that it’s not just about the number of games but the quality of the experience. In seconds, players can easily access hundreds of slots, including big progressive jackpots. Game graphics are stunning, maintaining a crisp and clear quality regardless of screen size.

Recommended game: Fire Blaze Golden Macaque – 96.73%

New customers only. £10 min transfer and stake on casino slots within 7 days. Max bonus 200 free spins on selected games credited within 48 hours. Free spins expire after 7 days. See full terms here.

Choosing The Top UK Slot Sites

Selecting a slot site in the UK requires a little bit of research to find the ideal fit for you. There are scores of gambling sites competing for customers, and it’s this competition that produces better and better deals for players. But it’s not as simple as signing up at the first site you come across. There are plenty of variables that should factor into your decision when choosing one of the best online slots sites. In the following sections are outlined some of the most important factors to consider:

Licence and Security

According to bingowebsites.org, playing at a fully-licensed UK casino site is perhaps the most important choice a player can make – more so than bonuses, compatibility, or range of games. That’s because licensed sites must meet the UK Gambling Commission’s standards on player protection, fairness and fraud prevention. A gambling licence protects players’ rights if any issues arise, and regulated slots sites that carry a full UK gambling licence provide:

• Industry oversight from the UKGC
• Full player protection from fraud
• Anti-problem gambling protections such as bet limits and self-exclusion
• Guarantee game fairness
• Dedicated customer support and access to complaints ombudsman

Registration Process

Registering for a regulated UK slot site is quick and simple. The process must be as smooth as possible so players can create a profile and pass security checks hassle-free. Otherwise, a player will simply look for another site that delivers a fast, safe sign-up process.

Here are the main steps for registering at online slot sites in the UK:

• Explore the site – Before signing up, check out the casino lobby and even play slots in demo mode to get a feel for the place
• Sign up – Hit the ‘Join’ or ‘Sign up’ button to begin.
• Enter details – You need to enter personal details like name, DOB, address and email.
• Create username – You will be prompted to create a username and provide a secure password.
• ID verification – At this point, you will likely need to provide ID, such as a passport or driver’s licence. This process is automated but may take a few minutes to complete.
• Deposit – You can now deposit money and claim your welcome bonus.
• Start playing – Once you have funded your account, you can start playing!

Slots Bonuses and Promotions

Slots sites need to offer great bonuses to players in order to stand out in such a competitive market. If they don’t deliver, players will simply go elsewhere. All these competitive bonuses are perfect for new players because they can have their pick of the greatest UK slots promos across the market.

Whether it’s bonus funds, extra spins or loyalty points, a bonus is a helping hand when starting out a casino adventure. Some popular casino bonuses are the deposit match bonus, free spins, no deposit bonus, reload bonus, cashback, loyalty points, high roller bonus and referral bonus.

Free spins at online slots sites are ideal for new and regular slot enthusiasts. This type of bonus is very common and allows players to spin the reels on selected slot games for free. There is often a wagering requirement attached to free spins.

Slots Catalogue and Variety of Other Casino Games

Quality slot sites need to offer an extensive range of games. There are various types of slots players, and often gamers’ preferences will change through their slots journey. Many will begin by playing low-stake spins and winning small amounts of money before progressing to big-money gaming and chasing mega jackpots. A slot site, therefore, needs to cater to all gamer types while also offering great bonuses.

Some of the types of games players should expect to find at UK slot sites include:

• Classic slots: Also known as 3-reel slots, these games are simple and easy to play, making them perfect for beginners. They usually have fewer paylines and resemble traditional slot machines found in Las Vegas and Monte Carlo.
• Video slots: These 5-reel slots come with numerous paylines and often feature detailed graphics, animations and immersive themes. They also include bonus rounds and special features.
• Progressive slots: These slots are linked across a network, with each stake contributing to a collective jackpot. The jackpot continues to grow until it is won, often resulting in substantial payouts.
• Megaways slots: In these slots, the number of ways to win changes with every spin, providing hundreds of thousands of potential paylines. They provide a new level of excitement with every spin.
• 3D slots: These slots feature 3D graphics and animations that create a more immersive gaming experience. They often include intricate themes and storylines.

Mobile Optimisation

Of all the slot sites UK players have access to, the most worthy provide mobile optimisation as standard. This usually comes in the form of an app, although some sites are completely accessible on a mobile browser. Browser slots need to be compatible and easy to use for an enjoyable gaming experience. Some good practices that best online casino sites offer when it comes to mobile optimisation are:

• Like-for-like suite: A slots suite on mobile needs to be recognisable with the desktop version so players know how to navigate effectively when gaming on their phone.
• High security: Phone gambling comes with different risks to desktop play because players may store different info on their phone, such as face ID. Extra security layers are, therefore, crucial for optimised mobile sites.
• Quick customer service: Mobile players expect instant help from their apps or optimised sites, so casinos need to have 24/7 live chat as standard, as well as phone options.
• Games dexterity: Mobile slot games need to be accessible on a smaller screen. Players will quit a casino site if the games are too complicated to play.

Payment Options

The sheer number of online payment options available today can cause a headache for even the most established slot sites. After all, there are scores of different bank cards, e-wallets and cryptocurrencies swirling around the internet. Slot sites need to cater to everyone, and the most popular are always updating their payment options. Players should consider their preferred payment method and double-check that it is accepted at their chosen UK slot site before signing up. Players should also check that the other payment options available are viable as backup plans should any issues arise with their preferred payment method.

FAQs

What is the most recommended slot site to play?

Each online slot site featured in this article has unique features and promises a high-quality casino experience. When choosing your next online slot site, consider the above factors to help you select a site that aligns the most with your personal needs and preferences.

What slot sites pay out the most?

Well-renowned UK slot sites must adhere to UK Gambling Commission rules around Return to Player (RTP) rates. A quality slot UK site will have games that pay out between 85% and 98% RTP.

What is the luckiest slot game?

The luckiest slot game is Mega Joker by NetEnt. It carries a 99% RTP, meaning players are more likely to win on this slot than most others. Mega Joker is available to play at most of the listed slot sites in this article.

How do you pick a winning slot?

Players need to look at the following variables to find a winning slot that’s right for them: high RTP, suitable volatility, jackpot size, and min/max bet size.

Responsible Gambling: It is important for players to know their limits and understand the dangers of problem gambling. Responsible gambling is the most suitable way to enjoy playing at online slot sites. This includes limiting the amount of gaming time and setting financial restrictions.

Problem gambling is a rising issue in the UK, but there are resources out there to help players. Online slot sites provide helpful guides for setting personal boundaries and implementing bet, deposit, and time limits.

Below is a list of responsible gambling resources players can access if needed:

• UK Gambling Commission – Safer Gambling guide
• BeGambleAware – National gambling support network
• GAMSTOP – National gambling self-exclusion scheme
• Age UK – Responsible gambling guide
• GamCare – Recovery toolkit

This article is brought to you by Amici IT and does not necessarily represent the views of The Herald.