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Unbiased Reviews of the UK‘s Top Slot Casinos

Your UK Online Slots Game Guide

There are so many reasons why online slots are popular in the United Kingdom. Fruit machines aren't just affordable and easy to play even if you're a beginner, but many games have real money jackpots worth millions of pounds. The best online casino slots are loaded with bonus features and have gorgeous graphics, brilliant animation, and catchy soundtracks that rival today's top console games.

Whether you prefer playing for real money or just for fun, our gambling experts have found the best slots online, like Betway Casino. Browse the games below to find your new favourites, all of which also offer:

  • Safe & secure banking options for UK players
  • Huge welcome bonuses & promotions for new users
  • Fast payouts so you're not waiting around for your winnings

Play Your Way Through Top Games

Top Rated UK Casinos for Slots

Betway Casino Logo

REVIEW SCORE

9.7

RATED OUTSTANDING

WELCOME BONUS

100% up to £1000

T&Cs Apply
New customers only. Opt-in required. 100% Match Bonus up to £250 on 1st deposit of £20+. Additional bonuses of up to £250 on 2nd deposit of £20+ and up to £500 on 3rd deposit of £20+. 50x bonus wagering applies as do weighting requirements. Credit Card, Debit Card & PayPal deposits only. Irregular gameplay may invalidate your bonus. Full terms apply
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SOFTWARE & COMPATIBILITY

Mega Moolah Jackpot icon Break da Bank Again available Mega Moolah Isis icon

Most Popular Slots

BANKING OPTIONS

97% win rate

0 - 2 Payout Speed

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Royal Panda Logo

REVIEW SCORE

9.5

RATED OUTSTANDING

WELCOME BONUS

100% up to £800

T&Cs Apply
18+ only, first deposit only. Casino bonus: min. £10,  Bonus winnings wagering requirement: x35. Max. bonus bet: £5, can vary. T&Cs apply
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SOFTWARE & COMPATIBILITY

Mega Moolah Jackpot icon Mega Moolah Isis icon Jackpot Giant Slot icon

Most Popular Slots

BANKING OPTIONS

96.7% win rate

1 - 2 Payout Speed

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32Red Casino Logo

REVIEW SCORE

9.3

RATED OUTSTANDING

WELCOME BONUS

100% up to £160

T&Cs Apply
18+ only, New accounts only. Min £10 deposit, debit/credit card and PayPal only. 50x wagering, game contributions vary, max. stake applies. Full terms apply
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SOFTWARE & COMPATIBILITY

Mega Moolah Jackpot icon Mega Moolah Isis icon Jackpot Giant Slot icon

Most Popular Slots

BANKING OPTIONS

96.7% win rate

1 - 2 Payout Speed

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Intercasino Casino Logo

REVIEW SCORE

9.1

RATED OUTSTANDING

WELCOME BONUS

100% up to £900 + 100 Bonus Spins

T&Cs Apply
18+ only, Min £20 deposit. 40x wagering on bonus. Bonus expires within 7 days. Winnings from Bonus Spins will be credited as bonus with 40x wagering requirements. Full terms apply
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SOFTWARE & COMPATIBILITY

Jackpot Giant Slot icon Mega Fortune Slot Monty Python's Spamalot Game

Most Popular Slots

BANKING OPTIONS

96.6% win rate

2 - 3 Payout Speed

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Paddy Power Casino Logo

REVIEW SCORE

8.9

RATED Excellent

WELCOME BONUS

Deposit £10 get £50

T&Cs Apply
18+ only, UK& IRL only. Deposits made with e-wallets are not valid for this promo. Bonus wagering x35 on eligible games. Winnings from bonus capped at £500. Spins available after the bonus is redeemed/lost. Full terms apply
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SOFTWARE & COMPATIBILITY

Gladiator Progressive Jackpot Jackpot Giant Slot icon Thunderstruck II icon

Most Popular Slots

BANKING OPTIONS

96.6% win rate

2 - 5 Payout Speed

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  • CASINO

    WIN RATE

    PAY SPEED

    TOP 3 SLOTS

    BONUS

    RATING

    Claim Now

  • 4 th

    Intercasino Casino Logo

    96.6%

    2 - 3 Days

    Jackpot Giant Slot icon Mega Fortune Slot Monty Python's Spamalot Game

    100% up to £900 + 100 Bonus Spins

    T&Cs Apply
    18+ only, Min £20 deposit. 40x wagering on bonus. Bonus expires within 7 days. Winnings from Bonus Spins will be credited as bonus with 40x wagering requirements. Full terms apply

    9.1

    Claim Now

    Read Review
  • 5 th

    Paddy Power Casino Logo

    96.6%

    2 - 5 Days

    Gladiator Progressive Jackpot Jackpot Giant Slot icon Thunderstruck II icon

    Deposit £10 get £50

    T&Cs Apply
    18+ only, UK& IRL only. Deposits made with e-wallets are not valid for this promo. Bonus wagering x35 on eligible games. Winnings from bonus capped at £500. Spins available after the bonus is redeemed/lost. Full terms apply

    8.9

    Claim Now

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Finding Great Online Slots

When you realise that your average UK slots site has hundreds of different fruit machines, figuring out where to begin can be overwhelming. Yet having so many choices at your disposal should never be detrimental. Fortunately, your future favourites are just around the corner.

Whether you plan on playing real money slots or free games, you'll find fruit machines that feel like they were fashioned exclusively for you. Today's leading online slots developers offer games in a wide range of themes. There are fantastic fruit machines based on mythology, historical events, sports like football, musical icons, hit Hollywood films, television series, video games, martial arts, Las Vegas, and so much more. Whatever you're into, chances are there's at least a few different slots that pay tribute.

Aside from choosing a game that feels like it was created with you in mind, there are other points to consider. If you're playing on a smartphone or tablet, you'll need to be certain that the game is mobile friendly. Luckily, most popular games will work with any iPhone, iPad, Windows Phone, Android smartphone or tablet. Naturally, PC, Mac, and Linux players are invited to play as well.

Players who want to try their luck at winning millions should keep tabs on all the big online casino progressive jackpots. Another factor to consider is the game's payout percentage. Anyone who cares about improving their bottom line will always shop around for the most favourable odds. Luckily, all the game guides on our site provide this information at a glance.

Now that you know precisely what you're searching for, you should have an easy time finding great games. Of course, you don't have to go it alone or rely on your own gut instinct and research. Before playing random online slots, casino players like you can count on our knowledgeable reviews to help you find great fruit machines. We'll quickly highlight the strengths and weaknesses of several hundred titles before digging deeper into the games. What's even better is that you can play for free with no commitment. It's the perfect way to get familiar with the gameplay and compare games for yourself.

Start Playing at the UK's Greatest Slots Casinos

While there are hundreds of sites that let you play slots online, there's no sense choosing a random casino and merely hoping for the best. Our internet gambling experts have tested every licensed site in the United Kingdom to find the best online slots, casino table games, and other gambling classics. Whether you prefer playing for real cash or plan on taking advantage of free games, you can count on our comprehensive reviews and invaluable rating system. We're here to guide you every step of the way.

When you visit a top-rated casino listed on our site, you'll have instant access to award-winning games, but that's just the beginning. The best real cash online slots sites offer safe and secure deposits, prompt payouts, excellent customer service, outstanding apps, full mobile compatibility, and so much more. You can also claim a huge real money slots bonus just for signing up.

We Answer Our Readers Most Common Questions

Which provider offers the best games?

Each of the software developers we recommend boast brilliant online slots games, so you can feel comfortable playing at any of them and know that you'll have a great time. Generally speaking, Playtech tends to be the most popular among UK online slots enthusiasts.

Can I trust the software providers?

Here at OnlineSlots.co.uk, we pride ourselves on only suggesting games & casinos that offer fair & exciting games. This means that you'll never find a software provider recommended here that is known to be taking advantage of online slots players. There are some rogue providers out there, but we keep up to date with their movements & stick them on our blacklist.

What makes a top online slot?

Every online gambler is after something different. Many players want low stakes on a game that has immersive graphics, whereas others are after large bets that lead to even bigger returns. This is why we often advise those new to online slots to play a few games for free to help you decide what you want from your slots experience, and then check out our recommendations as they all boast an incredible range of games.

Are progressive jackpots worth playing?

In our opinion, yes. Progressive games tend to have a higher variance than other online slots, this means that they payout less because when they do it's a larger amount. Many players think this means they need to have a huge bankroll, but some progressives offer multiple smaller jackpots alongside the main one that you can still win from placing smaller bets.

Are they actually random?

At reputable online casinos, yes. Any online slots site that's worth your time will have their Random Number Generators inspected and verified as truly random, which means you can play with peace of mind. All of the slots casinos we recommend have been verified and you can check for yourself by looking out for badges from the likes of eCOGRA, GLI, and iTech Labs.

Do I have to play with real cash?

No. If you'd rather just enjoy the game for free then you can do that as well. In fact, it's something we recommend to any new slots player so that you can get a feel of the game before spending your money on it. The only exception to this is live dealer games that require you bet with real cash in order to play.