The Best Online Slot Sites UK | Play Top UK Slots 2024
Updated by
James Briscoe
Editor
James Briscoe
Editor
Porto, Portugal
James began working in the online casino industry in Malta as a copywriter, before writing about casinos and esports betting for new sites and affiliate companies. He then wrote casino reviews for Gambling.com before joining Casinos.com full-time and has been part of the team since. James loves making articles to help players like you.
Lee James Gwilliam has over 10 years as a poker player and 5 in the casino industry. He has been all around the industry, working for a casino, writing more than 3,000 articles for various independent review sites and is an active player of slots, live dealer and poker.
Discover the best slot sites in the UK right here. Whether you like classic or progressive jackpot slots, we've got your back. Check out the best UK slot sites and claim exclusive slot bonuses below.
My Pick of the Best Slot Sites in the UK for October 2024
It goes without saying that casino sites have pros and cons. But I'll go through all the key features and give you my recommendations here.
If love slot games, check out our top list below. These slot sites have tons of awesome games to choose from. Lots of them also have ongoing promos and exclusive games - perfect if you're trying to find a new favourite. Every site you see here is tried and tested by our expert reviewers.
I only recommend the top slot casinos in the UK that stand out in every way. From game selection, bonuses and customer service to payment speeds and mobile compatibility. So, which ones are worth checking out? Let's dive in and find out.
🍇 Easy To Find Your Favourite Games on Mobile and Browser
More Top Slot Sites in the UK Right Now:
Affiliate disclosure: At Casinos.com, we want to ensure that players are matched with the right casino and sportsbook offers for them. For this reason, some of the recommended site links are affiliate links. This means that if you visit a website through our link and make a deposit, Casinos.com will receive a commission payment at no extra cost to you.
1
Mr Vegas Bonus
›100% Welcome Bonus Up To £200 + 11 Wager Free Bonus Spins
All Casino Games
7500+
Slots
6500+
Live Games
670+
Payout Speed
Instant
Payment providers
Minimum Deposit to Qualify
£10.00
Wager Requirement
35x
Maximum Bonus
£200.00
#ad. 18+. Gamble Responsibly. GambleAware.org. New Customers Only. T&Cs apply. The Welcome Bonus is only available to newly registered players who make a minimum initial deposit of € 10.
All Casino Games
2200+
Slots
2000+
Live Games
130+
Payout Speed
24 Hours
Payment providers
Minimum Deposit to Qualify
£10.00
Wager Requirement
40x
Maximum Bonus
£100.00
#ad. 18+. Gamble Responsibly. GambleAware.org. New Customers Only. T&Cs apply. #Min deposit £10, wagering 40x, max bet £5 with bonus funds. Max bonus is 100% up to £100. No max cash out on deposit offers. Welcome bonus excluded for players depositing with Skrill or Neteller. Cashback is cash with no restriction.
All Casino Games
2500+
Slots
1253
Live Games
80+
Payout Speed
24 Hours
Payment providers
Minimum Deposit to Qualify
£10.00
Wager Requirement
50x
Maximum Bonus
£123.00
#ad. 18+. Gamble Responsibly. GambleAware.org. New Customers Only. T&Cs apply. Maximum bonus is £123. Max bet with bonus is £5. No max cash out. Wagering is 50x. Skrill & Neteller excluded. Eligibility is restricted for suspected abuse.
All Casino Games
1800+
Slots
1600
Live Games
200+
Payout Speed
Instant
Payment providers
Minimum Deposit to Qualify
£10.00
Wager Requirement
35x
Value Per Bonus Spin
£0.10
#ad. 18+. Gamble Responsibly. GambleAware.org. New Customers Only. T&Cs apply. New cust only. Opt in & deposit £10 in 7 days & wager 1x in 7 days on any casino game (excluding live casino & table games) for 100 Extra Spins. Wagering contributions vary. Extra Spins worth 10p each on Big Bass Splash. 3 day expiry. 18+. T&Cs apply.
All Casino Games
450+
Slots
400+
Live Games
40+
Payout Speed
24 Hours
Payment providers
Minimum Deposit to Qualify
£10.00
Wagering Requirement
20x
Welcome Offer
#ad. 18+. Gamble Responsibly. GambleAware.org. New Customers Only. T&Cs apply. Deposit & stake £10 on slots get 200 x 10p Fire Blaze™: Blue Wizard Megaways™ spins (x20 WR).
All Casino Games
900+
Slots
638
Live Games
100+
Payout Speed
12 Hours
Payment providers
Minimum Deposit to Qualify
£10.00
Value per Bonus Spin
£0.10
Number of Bonus Spins
100
#ad. 18+. Gamble Responsibly. GambleAware.org. New Customers Only. T&Cs apply. New members only. Must sign up via this offer link. Min £10 cash deposit and wager on any Slot Game only within 7 days of sign-up. Must accept extra spins within 7 days of pop-up notification, valid for 7 days from acceptance on Eye of Horus. 10p coin size per extra spin, max lines. Click here for full Rules & Exclusions. Bet Responsibly. GambleAware.org.
All Casino Games
3600+
Slots
3400+
Live Games
120+
Payout Speed
12 Hours
Payment providers
Minimum Deposit to Qualify
£10.00
Wagering Requirement
40x
Number of Bonus Spins
30
#ad. 18+. Gamble Responsibly. GambleAware.org. New Customers Only. T&Cs apply. Deposit req (certain types excluded). Bet £10+ on qualifying games to get £50 Bonus (selected games, 40x wag req, accept within 14 days, valid for 30 days) and 30 Extra Spins on Rick and Morty Megaways (spin value £0.10p, Valid for 7 days). Player restrictions apply.
All Casino Games
667
Slots
625
Live Games
42
Payout Speed
Instant
Payment providers
Minimum Deposit to Qualify
£20.00
Wager Requirement
60x
Maximum Bonus
£50.00
#ad. 18+. Gamble Responsibly. GambleAware.org. New Customers Only. T&Cs apply. Maximum £50 bonus. Minimum deposit: £20. Bonus wins are capped at £500. Max bet with active bonus: £2. Wagering requirement 100% match deposit bonus: 60 times sum of deposit + bonus. Winnings from Extra Spins are credited as Real Money without wagering requirements. Some games may not be played with an active bonus. Games may contribute differently when wagering a bonus. Bonus expires after 30 days if wagering requirement has not been met. One bonus allowed per person, address, device, IP.
All Casino Games
650+
Slots
500+
Live Games
30+
Payout Speed
24 Hours
Payment providers
Minimum Deposit to Qualify
£10.00
Wager Requirement
1x
Value per Bonus Spin
£0.20
#ad. 18+. Gamble Responsibly. GambleAware.org. New Customers Only. T&Cs apply. Must opt in. Min £10 deposit & wager. 30 day expiry from deposit. Extra Spins: on Double Bubble. Spins value: 20p each. Bingo: Advertised ticket value based on £1 tickets. Game availability & restrictions apply.
All Casino Games
1500+
Slots
1200
Live Games
120+
Payout Speed
24 Hours
Payment providers
Minimum Deposit to Qualify
£10.00
% Match
100%
Maximum Bonus
£100.00
#ad. 18+. Gamble Responsibly. GambleAware.org. New Customers Only. T&Cs apply. 18+. New players only. UK & ROI. Deposit minimum £10/maximum£100 to receive a 100% bonus up to £100 (30x wagering, selected games, valid 30 days). Certain deposit types are excluded. Restrictions and T&Cs apply.
All Casino Games
4500+
Slots
4000+
Live Games
250+
Payout Speed
24 Hours
Payment providers
Minimum deposit to Qualify
£10.00
Wager Requirement
10x
Value per Bonus Spin
£0.10
#ad. 18+. Gamble Responsibly. GambleAware.org. New Customers Only. T&Cs apply. UK residents only. Min dep. £10. 10x wag. on winnings. Spins valid only on Starburst slot & valued at £0.10 each. Spins expire in 7 days. Excludes deposits made via Skrill, Entropay, Paysafecard & Neteller. T&Cs apply.
All Casino Games
3000+
Slots
2600+
Live Games
130+
Payout Speed
24 Hours
Payment providers
Minimum Deposit to Qualify
£10.00
Wager Requirement
40x
Bonus Spins
#ad. 18+. Gamble Responsibly. GambleAware.org. New Customers Only. T&Cs apply. 18+ New customers only. Opt in and wager £10 on selected slots in 3 days. Get 1x£20 Slots bonus & 1x£20 Live Casino bonus + 100 Extra Spins on Big Bass Mission Fishin’, 5 days expiry. Bonuses are on selected games, 40x wag, max redeem £1,000, expire in 30 days. Scroll down for T&Cs. GambleAware.org. Please gamble responsibly.
All Casino Games
2500+
Slots
2100+
Live Games
100+
Payout Speed
24 Hours
Payment providers
Minimum Deposit to Qualify
£10.00
Wager Requirement
40x
Maximum Bonus
£100.00
#ad. 18+. Gamble Responsibly. GambleAware.org. New Customers Only. T&Cs apply. Minimum deposit £10. Get a Casino Bonus matched to your first deposit, up to £100, after you stake £20 on slots, credited within 48 hours. Bonus expires in 7 days and has a 40x wagering requirement.
Additional T&Cs apply. Please bet responsibly.
All Casino Games
2100+
Slots
2000+
Live Games
50+
Payout Speed
3-5 Days
Payment providers
Minimum Deposit to Qualify
£10.00
Wager Requirement
30x
Value per Bonus Spins
£0.10
#ad. 18+. Gamble Responsibly. GambleAware.org. New Customers Only. T&Cs apply. New customers only. Min dep (Exc. PayPal) £10. 100% Bonus up to £250 + 100 extra spins valued 10p, playable on selected slots. 30x wagering applies to bonus and wins generated from spins, valid 7 days. Max win capped and vary. 18+ Full T&Cs apply.
15
BetVictor Bonus
›Wager £10 on Casino Get £30 in Casino Bonus Funds+ 30 Extra Spins on Fishin' Frenzy
All Casino Games
2700+
Slots
2500+
Live Games
150+
Payout Speed
Instant
Payment providers
Minimum Deposit to Qualify
£10.00
Wager Requirement
x40
Number of Bonus Spins
100
#ad. 18+. Gamble Responsibly. GambleAware.org. New Customers Only. T&Cs apply. 18+ New customers only. Opt in, deposit, and wager a min of £10 on selected games within 7 days of registration. Get a 3x £10 Casino Bonus Funds for selected games and 30 Extra Spins on Fishin' Frenzy. Offer valid until 23:59 UK time on 31.12.24 Debit card / Apple Pay payments only. T&Cs apply, see below. gambleaware.org | Please gamble responsibly
All Casino Games
2700+
Slots
2500+
Live Games
95+
Payout Speed
12 Hours
Payment providers
Minimum Deposit to Qualify
£20.00
Wager Requirement
40x
Number of Bonus Spins
200
#ad. 18+. Gamble Responsibly. GambleAware.org. New Customers Only. T&Cs apply. 18+. new players only. min. dep £20. max. bonus bet £5. 100% match up to £200 + 200 bonus spins on Book of Dead on your 1st deposit. Winnings from all spins credited as bonus funds and capped at £100. Bonus funds are separate to cash funds & subject to wagering requirement (40x deposit plus bonus). Only bonus funds contribute towards wagering requirement. Bonus funds must be used within 30 days, spins within 72hrs. Affordability checks & terms apply. Please gamble responsibly. BeGambleAware.org.
All Casino Games
1300+
Slots
950+
Live Games
300+
Payout Speed
Instant
Payment providers
Minimum Deposit to Qualify
£10.00
Wager Requirement
30x
Maximum Bonus
£200.00
#ad. 18+. Gamble Responsibly. GambleAware.org. New Customers Only. T&Cs apply. First-time depositors • Min deposit £10 • Claim within 48 hours • Expires in 90 days • 30X wagering • Valid on selected slots • UK and Ireland only • Full T&Cs apply
All Casino Games
2500+
Slots
2000
Live Games
250+
Payout Speed
24 Hours
Payment providers
Wager Requirement
1x
Multiple Deposit Bonus
Value per Free Spin
£0.10
#ad. 18+. Gamble Responsibly. GambleAware.org. New Customers Only. T&Cs apply. 18+. New cust only. Opt in & deposit £10+ in 7 days & wager 1x in 7 days on any eligible casino game (excluding live casino and table games) for 50 Extra Spins. Wagering contributions vary. Extra Spins worth 10p each on Big Bass Splash. 3 day expiry. 18+. T&Cs apply.
All Casino Games
1200+
Slots
1000+
Live Games
150+
Payout Speed
24 Hours
Payment providers
Minimum Deposit to Qualify
£20.00
Wager Requirement
30x
Maximum Bonus
£50.00
#ad. 18+. Gamble Responsibly. GambleAware.org. New Customers Only. T&Cs apply. Min Deposit £20. Max Bonus £30, Bonus Amount non-withdrawable, Playable on Selected Games Only. 30X Wagering for £30 Bonus. Expires Within 30 Days. Max Win £2000. Full T&Cs apply.
All Casino Games
700+
Slots
650+
Live Games
40+
Payout Speed
24 Hours
Payment providers
Minimum Deposit to Qualify
£10.00
Wager Requirement
1x
Number of Bonus Spins
30
#ad. 18+. Gamble Responsibly. GambleAware.org. New Customers Only. T&Cs apply. New members only, must opt in. Min £10 deposit & wager (excl. sports betting). 30 day expiry from deposit. 18+. Extra Spins: on Double Bubble. 1p coin size, max lines. Game availability & restrictions apply.
If you're playing from the UK, you've got loads of UK slot sites to pick from. But the tricky part is figuring out which one to go for. In this section, we'll take a look at sites that specialise in certain features.
Our Best UK Slots Site for Bonuses is SpinYoo
SpinYoo gives newly-depositing players a welcome offer of 100% of your first deposit up to £250 to play on slot games, plus 100 free spins or 'Yoo Spins' on some of the biggest slot names; Starburst, Big Bass Bonanza, Fire Joker, Book of Dead, and Gonzo's Quest. It's the only welcome bonus we're currently aware of that gives you free spins on such a range of top slots.
Other promotions on offer at SpinYoo include daily free spins when you deposit at least £50, 10% of weekly losses back up to £50, and up to £100 in bonus funds monthly in exchange for loyalty points.
There's a bonus for live casino players too - 100% of your first deposit up to £100. It's unusual for an online casino to provide a live casino welcome offer.
Need to know: with the slots welcome bonus, you get 20 Yoo Spins on each of the mentioned slots, with one batch per day. The minimum deposit needed to get this welcome bonus is £20.
Our view: there's plenty of interesting slots promos here, even the welcome deal alone which lets you test some of the most popular slots available.
SpinYoo Bonus
100% Welcome Bonus up to £250 + 100 Bonus Spins
#ad. 18+. Gamble Responsibly. GambleAware.org. New Customers Only. T&Cs apply. Min Dep £20. Max Bonus Bet £5. Offer: 100% of 1st deposit up to £250 + 100 Yoo Spins on Starburst, Book of Dead, Fire Joker, Gonzo's Quest, & Big Bass Bonanza respectively (first 20 credited on 1st deposit; rest credited at 07:00GMT at 20/day). Spins expire after 23:59GMT on day they’re credited. Winnings from each 20 spins capped at £50 & credited as bonus. Bonus funds expire after 30 days, are separate to Cash funds, & subject to 35x wagering of bonus + deposit amounts. Only bonus funds contribute to wagering requirements. Bonus funds can only be used on slots. Full Terms Apply.
Our Best UK Slots Site for Game Selection is Party Casino
Party Casino has more than 5,000 slot games and counting, including the best Megaways slots, so it’s an excellent site if you're a slots fan. Not only that but you can get a £250 bonus when you sign up and deposit.
Need to know: slot games count 100% to the first deposit bonus wagering requirements of 35x and you have 30 days to unlock the bonus.
Our view: although Party Casino doesn't have the biggest reputation of UK slot sites, it has virtually everything you could want, not least a diverse game selection, including jackpot slots.
Why not check out Party Casino's welcome bonus below?
#ad. 18+. Gamble Responsibly. GambleAware.org. New Customers Only. T&Cs apply. 18+. New players only. UK & ROI. Deposit minimum £10/maximum£100 to receive a 100% bonus up to £100 (30x wagering, selected games, valid 30 days). Certain deposit types are excluded. Restrictions and T&Cs apply.
Our Best UK Slots Site for Progressive Jackpot Games is Mr Vegas
Mr Vegas had, at our latest count, more than 320 progressive jackpot slots for you to choose from – that even impressed our battle-hardened reviewers. It also has a table of the latest jackpots from biggest to smallest, which features a Book of Atem WowPot of £33.3m and a Mega Moolah Lucky Bells jackpot of £6.6m.
The casino also boasts the progressive jackpot games Mega Moolah: Goddess, Mega Fortune, Ancient Fortunes Poseidon WowPot Megaways, Immortal Romance: Mega Moolah, and Bankin’ Bacon.
You can even play slots alongside live casino games like blackjack or online baccarat casino titles at Mr Vegas.
Need to know: Mr Vegas has a special, social lobby called Encore, with player versus player competitions and the chance to talk to your opponents.
Our view: Mr Vegas isn't the slickest-looking slot site, but it makes up for that with a quality jackpot slot selection and features like its Encore lobby.
Mr Vegas Bonus
100% Welcome Bonus Up To £200 + 11 Wager Free Bonus Spins
#ad. 18+. Gamble Responsibly. GambleAware.org. New Customers Only. T&Cs apply. The Welcome Bonus is only available to newly registered players who make a minimum initial deposit of € 10.
Our Best UK Slots Site for New Online Slots is NetBet
NetBet is a legit casino site for new slots and it even has a New Games tab which makes it easy to find something fresh. When we reviewed the site, some of the featured new games were Secret 7s, Tommy Gun’s Vendetta, Million Zeus, Big Size Fishin’, and Wolf Fang: The Origins.
NetBet also boasts jackpot slots like Gladiator Jackpot and Age of the Gods: Glorious Griffin, plus it has thousands of other slot games to try.
Need to know: you can get up to 500 free spins with NetBet's current welcome bonus. You receive 50 spins after your first deposit, then the amount you get each day is random, between none and 75 - you'll get all your free spins within six days though. Also note that you have to enable marketing communications or you'll only be entitled to the first 50 free spins, and there's 40x wagering.
Our view: if you like slots, the chance of grabbing a bonus 500 free spins from your first deposit is very tempting. We also appreciate the quality mix of top jackpot slots and famous slot titles like Starburst and Immortal Romance: Mega Moolah.
NetBet Bonus
Up To 500 Bonus Spins
Promo Code: NBWELCOME500
#ad. 18+. Gamble Responsibly. GambleAware.org. New Customers Only. T&Cs apply. New players, £10+ deposit, no e-wallets/prepaid cards, up to 500 Extra Spins, 40x wagering on Extra Spins winnings, £5 max bonus stake. Terms apply
Guide to Choosing the Best Slot Sites in the UK
UK slot sites want your custom but which sites are the best for you? We know you're not the same as everyone else. So, can we recommend the best slots to play and on which sites to play them? We certainly can!
Fortunately for you, we've scoured the web to identify the best slots sites in the UK, plus the best slots, to make recommendations based on genuine, first-hand research. We rate and highlight the best UK slot sites for features like welcome bonuses and free spins a little further down this page.
Also, we highlight legitimate and safe slot sites and guide you away from the less trustworthy. We also present you the sites with free slots, the fastest payouts, and best customer service.
Once you've read this guide, you'll be armed with all the information you need to bet on excellent slots at all the best places.
How We Rate the Best Slot Sites in the UK
We check out hundreds of top UK slot sites to see what games they offer, how good they are, what the user experience is like, and what bonuses they have. If you're wondering how we decide which ones are the best, here's how we do it.
Step 1: One of our slot experts opens an account with a casino. This way, they can judge the simplicity of the sign-up process and the security provided.
Step 2: They will then test and compare online casino bonus offers. If a casino gives a bonus as rare as a no deposit free spins welcome offer, it gets an extra star.
Step 3: Using payment methods available to UK players, the reviewer makes a deposit. This lets them test the site’s games for fairness, speed, and visuals.
Step 4: Once the reviewer gets a win, they'll ask for a payout. This helps us check payout speeds. It's also a good time to talk to the support team and see how helpful and friendly they are.
Step 5: If a website really stands out, it gets a bonus point from us. For example, the same casino can be a great slots site and one of the best online poker sites at the same time.
Step 6: The best online slot sites in the UK work well on desktop, Android, and iOS devices. We check if that's true when reviewing the casino.
We also pay attention to new slot sites UK players can join, so we'll alert you as soon as they launch. Plus, we track established sites to make sure they haven't rested on their laurels.
How to Sign Up at a Slot Site
If you want to play the best UK slots, you need to sign up with a casino. It's quick and easy, usually taking just a few minutes. The sign-up process varies from casino to casino, but these steps are pretty standard:
To begin, select a casino you like from this page and click on the 'Visit Site' button or similar.
At this point, some casinos might want you to confirm who you are. It's just a standard process called Know Your Customer (KYC). If you can't do it right away, you might still be able to finish this step before withdrawing. But some sites only let you deposit once they've verified your identity.
Now, go to the cashier and deposit using your preferred payment method.
If the casino offers welcome bonuses, you can now claim them. But check the main terms, as you may need a promo code.
You're all set. Select a slot that appeals to you and check the payout table. It will tell you everything you need to know about the slot.
Set your coin value, aka your bet, and the maximum bet per line if you are playing a progressive jackpot slot. Then, hit the spin button.
Keep playing until you're ready to cash out, as long as you're having a good time and staying within your limits. Don't forget that all wins read from left to right.
Finally, you can visit the cashier to make a withdrawal. Choose your preferred withdrawal method, enter your desired or maximum amount, and confirm. Withdrawals are rarely instant, so check the banking page for details.
Types of Online Slots
The world of online slots is always growing with new themes and exciting features. It used to be all about basic fruit slots, but now there's a whole universe of games in different categories.
Classic Slots
These are the original online slot games and they still exist on slot sites, despite becoming dated. Classic slots often have traditional themes and are reminiscent of fruit machines at land-based casinos.
Video Slots
Playing online slots has become more exciting with the release of the video slot, which is now the dominant slot type. Their game mechanics are more evolved than in classic slots, and can feature more paylines and eye-catching bonus rounds. Their improved graphics allow for in-depth characters and themes and the overall experience is more immersive.
Video slots online include 3-reel and the more elaborate 5-reel slots, which contain exciting features like wilds and scatter symbols, with live-action backgrounds and animations.
3D Slots
3D slots take video slots to another level. These cutting-edge games feature characters that feel like they’re jumping out of the screen, making betting on online casino slots almost cinematic. Sometimes these games feature 3D cutaway scenes as part of bonus rounds, while others are a total 3D experience.
The top 3D slots right now include The Rift, Turning Totems, Gonzo’s Quest and Jungle Jim El Dorado.
Scatter Slots
A scatter slot is simply a slot game that features scatter symbols, which, if you land them, can help boost your win. They make games more fun and lucrative. These scatters usually tie in with the theme of the slot machine like pyramids in an Ancient Egypt-style game.
Progressive Jackpot Slots
These games are very popular as they give players the chance to win huge prizes from small stakes. Casual players have good reason to think these are the best slots to play for real money, because they stand a chance of banking a big win that previous players have helped grow.
With a progressive jackpot slot, a small portion of each player’s stake contributes to the jackpot, which rises until a player triggers it. There have been several players winning seven-figure and even eight-figure prizes lately.
Fruit Machines
These slots mimic the machines you find in bars and arcades across the UK, featuring three reels and a payline in the middle. Symbols generally include classics like fruit, bells and the number seven.
‘Fruities’ give you the option to hold or nudge reels, adding another layer of fun. The best fruit machine games at online slots sites for 2024 include Fruit Shop, Booming 7 and Fruit Fiesta.
The Best Online Slots in the UK in 2024
The best online slots in the UK depend on personal preference. But some have gained widespread popularity over the years. They include classics like Gonzo’s Quest, Mega Moolah, Starburst, and Rainbow Riches.
You can test out demos of classic and new online slots by signing up with the casinos listed below. Just remember to note down which sites offers which slot so you know where to play them.
In a progressive jackpot slot, the main prize gets bigger and bigger until someone hits the jackpot. And when that happens, the jackpot starts to build again. Only a few UK slot players have been lucky to win big in the past few years by playing these games at UK sites.
An English soldier, Jon Heywood, is just one of them. In 2015, he hit a huge £16 million jackpot while playing the Mega Moolah slot. He bet only 25p on a spin and scored the jackpot, landing himself a place in the Guinness Book of World Records.
A Belgian player has since topped Jon Heywood’s win, playing Mega Moolah. But many slot lovers are bidding to claim a new record each day.
The 2024 jackpot slots with the biggest prizes at the time of writing are:
💰 WowPot slots - £35m
💰 Mega Moolah - £8.7m
💰 Jackpot Giant - £6.2m
💰 Dream Drop slots - £2.5m
💰 MegaJackpots slots - £1.1m
💰 Mega Fortune - £0.8m
Why not visit the featured online slot site below? It has an excellent must-go jackpot slots line-up.
Playzee Bonus
100% Welcome Bonus up to £300 + 100 Bonus Spins
#ad. 18+. Gamble Responsibly. GambleAware.org. New Customers Only. T&Cs apply. Min Dep £20 Max Bonus Bet £5 Offer: 100% of 1st deposit up to £300 + 100 Zee Spins on Starburst (first 10 credited on 1st deposit; rest credited at 07:00GMT at 10/day) + 500 Zee Points. Spins expire after 23:59GMT on day they’re credited. Winnings from each 10 spins capped at £50 & credited as bonus. Bonus funds expire after 30 days, are separate to Cash funds, & subject to 35x wagering of bonus + deposit amounts. Affordability checks apply.
Slot Comparison Tool
Have you used our slot comparison tool yet? We made it in-house so you can easily compare up to three slots at a time. Here's how you can use it:
Click on the image, and a new window will pop up.
Then, hit the drop-down menu and find the titles you want to compare.
That's it! Now, you can compare the RTP rate, volatility levels, theme, and bonus features. You can even see if the game has a progressive jackpot. Pretty cool, right?
Do Slot Sites Offer Bonuses
Many sites use online slot bonuses to attract new customers. These bonuses come in different sizes and have different wagering requirements. From what I've seen, it's a good idea to check out a few sites to find the best deals. Here's what to watch out for when you're shopping around.
No Deposit Bonuses
Some sites offer a no deposit bonus on slots when you sign up for a new account. The deal often includes bonus cash or free spins, and you don't need to deposit to get it, only join the casino. It might look something like this:
Get £5 no deposit bonus when you sign up and use code FREE5, or
Claim 10 free spins on Aztec games, no deposit needed
But this kind of bonus is very rare. Only a few slot sites in the UK offer it, and there's usually some wagering involved. Still, it's a great way to try out slot sites that are new to you and their games.
Reload Bonuses
A reload bonus is a deposit incentive and reward aimed at players who have already opened an account with a casino. As an example, a casino might give you a 50% reload bonus up to £200 when you deposit at least £30. This reload bonus is usually awarded as a non-withdrawable amount which must be wagered before it can be withdrawn as cash.
Cashback Bonuses
A casino might also give you a cashback bonus if you deposit a minimum amount but lose bets during a certain period. For example, if you deposit at least £20 but lose all of that in the next seven days, you could get £2 or 10% back once the week is over.
No Bonus Casino is the perfect example. Instead of giving you a welcome bonus, it gives you cashback on all losses, for life.
#ad. 18+. Gamble Responsibly. GambleAware.org. New Customers Only. T&Cs apply. 10% Cash back without wagering the day after if the player loses all the money in the account.
Min deposit £10. Gameplay is monitored.
Free Spins
Some of the best slot sites often offer free spins to players. These can be a bonus for betting a certain amount the previous day or week. It can be a cushion if you lose bets or a large free spins prize that's given over several days.
Loyalty Programmes
The top UK slot sites usually have a loyalty program. Also known as a VIP program, it offers you various perks as a regular player. The rewards can vary, but here's what you can expect:
Lower wagering requirements for bonuses
Personalised trips and experiences
Your personal account manager
Flexibility to use your cash balance online and at land-based casinos.
It's not surprise that these high roller casino bonuses are often seen as the best rewards for loyal players.
Wagering Requirements
Remember, when you get a bonus, there's usually a wagering requirement tied to it. This rule means you have to play through the bonus credits several times before you can cash out. The next step is to figure out how to calculate it. It's pretty easy, really.
Say you have a £10 bonus with a 30x wagering rule. All you need to do is multiply 10 by 30, and you'll know that you have to wager your bonus 300 times (10*30).
You can also use a wagering calculator for this. Check out our slots bonus page to find our own tool that can help you figure out how much you need to wager in no time.
But every now and then, you might get lucky and find a no wagering bonus. If that happens, whatever you win is yours to keep.
Wagering Tip
If you're new to wagering requirements, we have a guide that explains what they are and how to work around them. You can find all the details here.
Slots' Random Number Generators and How They Affect Games
A random number generator (RNG) is used to calculate the result each time you hit spin on an online slot game. An RNG is also used on physical slots found in casinos and arcades, and is used to determine the results of online casino games like at online blackjack sites.
The random number generated goes through the game’s software and produces a tangible result, giving you a win or a loss.
All licensed operators providing for UK players will fall under the jurisdiction of the UK Gambling Commission (UKGC), which monitors the RNG technology that online slots sites use to ensure it remains fair.
Payouts and RTP
When you're playing on slot sites, it's important to know about the Return to Player (RTP) percentage. This percentage tells you how much money you can expect to get back from a slot over a prolonged period.
It essentially refers to the house edge. If a slot has an RTP of 94.75%, the average house claim will be £94.75 for every £100 staked.
However, slots are games of chance, and while some players make a profit, others lose. That’s just how it goes.
The RTP gives you an idea of the average return you can expect. So, aim for as high an RTP as possible.
Most games usually have an RTP of around 95% - 96%, but there are exceptions. Take NetEnt’s Mega Joker, for example, with a whopping RTP of up to 99%. Jackpot 6000 is also impressive, going up to 98.8%. These games are among the best-paying ones you can find online in the UK.
It may not always state the RTP rate, but it will tell you what each symbol pays when you match them on a payline. For example, if you see a symbol that pays 100 times for 3 matches, you could win 100 times the size of your bet.
Game developers usually list the minimum and maximum prizes you can win during the base game and bonus round. This info can help you figure out your potential payouts.
The Best RTP Slots in the UK
Here are some of the best RTP slots at UK online casinos:
Software or game providers are the guys behind the slots we all love. They compete to launch the best games each year and stock up the slot collections of the best slot sites in the UK.
Each studio has its own vibe. For example, Play'n GO is known for making slots with compelling stories, like the iconic Immortal Romance. NetEnt is like a creative powerhouse, always wowing players with unique slots and big jackpot games like Divine Fortune.
Most experienced players have their favourite studios. But if you're new to this, we've listed some of the most popular ones.
Microgaming
Based on the Isle of Man, the brand is one of the largest providers of online slots in the UK. It consistently supplies casinos with numerous titles year after year. Mega Moolah, Game of Thrones and Thunderstruck II are the most famous creations.
Playtech
Playtech offers some really exciting branded slots like The Matrix, Superman, Top Gun, and American Dad. It’s also famous for making Age of the Gods and Big Bad Wolf.
NetEnt
This Swedish software company makes some of the coolest online slots in the UK. Players love games like Starburst, Gonzo’s Quest, and Mega Fortune. They provider is also known for making branded video slots like Gordon Ramsay’s Hell’s Kitchen.
Play'n GO
Play'n GO is a Swedish company known for its exciting UK online slots. Their library features hits like Troll Hunters 2, Book of Dead, and Mystery Joker.
IGT
International Game Technology, or IGT, is a multinational firm headquartered in London. They also have offices in Las Vegas, Rhode Island and Rome. A pioneer in branded video game slots, its biggest hits include Family Guy, Da Vinci Diamonds, Pharaoh’s Fortune, and Cleopatra.
Light & Wonder
Light & Wonder (formerly SG DigitL) has released some impressive slots after buying up NYX and NextGen. These include Raging Rhino Megaways, Lucky Lanes, and Prisma Blast.
Novomatic
Novomatic, an Austrian software provider, turned 40 in 2020. They work with the best slot sites in the UK and keep dropping new online slots regularly. Some of their popular slots include Sizzling Hot, Book of Ra, and Lord of the Ocean.
Betsoft
Betsoft is famous for its quirky games like The Slothfather and Good Girl Bad Girl. The company has a specific focus on slot apps and 3D slots.
Slot Tip
You can play free demo games of the best UK slots right here by visiting our free slots catalogue. We've got over 1,500 titles from the top providers.
Tournaments at UK Slot Sites
The best online slots sites often host tournaments based on a certain slot – typically a classic game or a hot new release. You can join these tournaments and bid to complete the challenges to climb the leaderboard and win prizes. Exciting prizes include cash, trips, cars, and gadgets.
These online slots tournaments are generally hosted in collaboration with the software provider to boost the profile of a game. They allow players to earn valuable prizes and are worth finding at the best gambling sites for UK slots.
Payment Methods at UK Slot Sites
The best slots sites will offer you a wide range of payment methods for making deposits and withdrawals. Debit card payments are popular among visitors to UK slot sites and are widely accepted.
Common online casino payment methods include e-wallets, such as Neteller or PayPal, but you probably won’t be able to claim a bonus if you opt for Neteller or Skrill as it’s difficult for a casino to track if users have claimed the bonus before.
Vouchers, such as a Paysafecard, are accepted at many new online slots sites, along with other prepaid cards.
In addition, withdrawal times vary depending on the online casino you play at and the withdrawal method you choose.
You might need to make withdrawals via the same method you used to make a deposit, as this is a licensing condition designed to stamp out money laundering.
Why not visit the casinos featured below? They're known for fast payouts.
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James began working in the online casino industry in Malta as a copywriter, before writing about casinos and esports betting for new sites and affiliate companies. He then wrote casino reviews for Gambling.com before joining Casinos.com full-time and has been part of the team since. James loves making articles to help players like you.
You can find the best online slot sites right here on our page. Our team has found the best online casinos that show the best slots sites UK players can visit. We check available games, bonuses, security, customer support, availability, payment methods, and more.
What slot has the best chance of winning?
An online slot with the highest possible RTP will give you the best chance of winning. Return to player (RTP) highlights how much a slot game pays back to players on average. Just remember, no game provides a guarantee of success.
Are UK slot sites safe?
Yes, absolutely. We only recommend the most reputable slot sites UK customers can join today. Our team works hard to ensure all sites we list are fully licensed by the United Kingdom Gambling Commission (UKGC) and provide secure payment options, allowing players to gamble responsibly.
Do UK slot sites accept credit cards?
Online casinos with a licence with the United Kingdom Gambling Commission (UKGC) are no longer allowed to offer credit cards as a payment method. However, UK customers are able to visit non-UK-licensed casino operators and use credit cards there if they wish.
Do slots sites offer slots bonuses?
Yes, the online slot sites we recommend provide a range of bonuses for new and existing players. This includes welcome bonuses and ongoing promotions for players who have already created an account. Common online casino bonuses include deposit matches, free spins and no deposit bonuses.
What is coin size in an online casino?
At many online slot sites, the value of your bet will be shown in coins. For example, you can bet 10 coins at a total value of £0.10 or £1, depending on the value of each coin. Also, you can often increase or reduce the coin value if you're a highroller or want to play it safe.
Which online slots are the best?
There are so many online sites that almost everyone could pick a different game as their favourite. Mega Moolah is popular because of the big wins it’s produced, while Starburst has a classic but modern quality that’s made it stand out. Ultimately, it’s up to you to find your favourite.
When is the best time to play slots online?
Although there are myths that it’s easier to win on online casinos at the end of the month, there’s no number one best time to play. However, it might be best to play slots when there’s a tournament in play, because players that win big can finish on the tournament leaderboard and win another prize.
What slots are paying out today in the UK?
The Wild Cauldron slot, from Quickspin, has a maximum win of 211,995x your bet, making it one of the most potentially lucrative slots around. You can play Wild Cauldron at Mr Vegas, a casino featured at the top of this article. Mr Vegas also lists its latest progressive jackpots like the current £3.5m on Mega Fortune.
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#ad. 18+. Gamble Responsibly. GambleAware.org. New Customers Only. T&Cs apply. First deposit only. Min deposit & spend £20. Max 100 spins on Big Bass Splash 10p per spin. Spins credited upon spend of £20. 18+ Full T&Cs apply.