The Best Online Slot Sites UK | Play Top UK Slots 2024

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.

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?

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.

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.

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.

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.

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.

UK Slots with the Biggest Progressive Jackpots

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:

1. 💰 WowPot slots - £35m
2. 💰 Mega Moolah - £8.7m 
3. 💰 Jackpot Giant - £6.2m 
4. 💰 Dream Drop slots - £2.5m
5. 💰 MegaJackpots slots - £1.1m
6. 💰 Mega Fortune - £0.8m

Why not visit the featured online slot site below? It has an excellent must-go jackpot slots line-up.

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. 

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.

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.

Here are some of the best RTP slots at UK online casinos:

Top Software Providers for Slots

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.

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.