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Home / UK’s Best Online Slots Sites 2023

UK’s Best Online Slots Sites 2023

Author: Preston Davis | Updated: September 25, 2023

Here's our list of the best UK slot casino sites, as reviewed and rated by the experts at Gamblingpedia.co.uk. We evaluated factors like the number and quality of slot games, security, bonuses, and fast payouts. The following are our top picks:

1 PlayOJO Casino

1 PlayOJO Casino

PlayOJO Casino stands out as a top choice for UK slots players, boasting over 3,000 slot options from premier providers like NetEnt and Microgaming. They prioritize fairness with no-wagering bonuses and daily cashback. Their dedication to responsible gambling, enhanced by tools like deposit limits and self-exclusion, coupled with exemplary customer service, makes them a trusted and enjoyable gaming destination.

  • Slots Games Average RTP: 94.65%
  • Jackpot Slots Average RTP: 94.73%
  • Average number of Bonuses: 3 main types
  • Average Stacked RTP: 97.62%
OVERALL RATING
★★★★ 4.8/5
Slots Variations 98%
Bonuses 92%
Mobile Compatibility 98%
Slots RTP 95%
Slot GameProviderRTPReels
Dead or Alive 2NetEnt96.8%5
Eye of HorusMerkur Gaming96.31%5
Book of DeadPlay'n GO96.21%5
Reel King MegawaysBig Time Gaming96.21%5
StarburstNetEnt96.09%5
Bonanza MegawaysBig Time Gaming96%6
Gonzo's QuestNetEnt96%5
Wolf GoldPragmatic Play96%5
CleopatraIGT95.73%5
Rainbow RichesBarcrest95%5

2 Slot Lux Casino

slotlux screen shot

Slotlux Casino shines as one of the premier online slot platforms in the UK, offering a diverse array of games from leading software developers. New players are welcomed with a generous BONUS of 100% UP TO £200 + 20 FREE SPINS ON BOOK OF DEAD. Moreover, they present opportunities like the DOUBLE DELICIOUS and the chance to claim a CASH PRIZE in the Thursday Slots Magic Leaderboard. A standout in their collection is NetEnt's classic, Starburst, which promises players a dynamic experience with its 5-reel, 10-payline layout and a potential 50,000x stake max payout.

  • Casino Games: 2500+
  • Jackpot Slots: 100+
  • Bonuses: 200% up to £1,000
  • Starburst RTP: 96.1%
  • Max Payout: 50,000x
OVERALL RATING
★★★★ 4.7/5
Slots Variations 96%
Bonuses 95%
Mobile Compatibility 96%
Slots RTP 95%
Slot GameProviderRTPReels
Scales of DeadRelax Gaming96.45%5
Cops n Robbers Big MoneyPragmatic Play96.5%5
Book of DeadPlay'n GO96.21%5
Joker BombsPragmatic Play96.23%5
Twin SpinNetEnt96.58%5
Free Reelin' Joker 1000NetEnt96.99%5
The Good, The Bad & the UglyNetEnt96.1%5
ReactoonzPlay'n GO96.51%5
Canny the Can and the Book of TimeRed Tiger Gaming96.5%5
10001 NightsNetEnt96.58%5

3 Vegas Plus Casino

Vegasplus slots

Vegas Plus Casino offers a range of slot games, including Dragon's Treasure and The Three Musketeers, each with demo options and varying payout percentages, some of which reach up to 98%. Although the site may lack detailed game features, its extensive slot selection, exemplary customer service, swift withdrawals, and enticing deposit bonuses establish it as one of the top choices for slots in the UK.

  • Slots Games Average RTP: 96.5%
  • Jackpot Slots Average RTP: 95.5%
  • Number of Bonuses: 5
  • Average Stacked RTP: 97%
OVERALL RATING
★★★★ 4.7/5
Slots Variations 94%
Bonuses 92%
Mobile Compatibility 96%
Slots RTP 96%
Slot GameProviderRTPReels
FLAMING CHILLISQuickspin96.61%5
BOOK OF TOMBESAmuzi Gaming96.43%5
CASH PIGPragmatic Play96.49%5
WILD BONUS -RE-SPINSPlay'n GO96.19%5
HOT SLOT – 777 CROWNBooongo Gaming96.45%5
EGYPTIAN SUNPragmatic Play96.36%5
STICKY BOMBSQuickspin96.59%5
MUCHO EGGSPragmatic Play96.46%5
BORING BEELSRelax Gaming96.35%5
CHOCO REELSQuickspin96.58%5

4 MRQ Casino

MRQ Casino

MRQ Casino features over 900 mobile-friendly slot games from premier software providers, solidifying its reputation as one of the UK's best slots casinos. The game variety includes new releases, progressive jackpots, and traditional slots with various paylines. Updated weekly, the selection ensures a high-quality, smooth gaming experience.

  • Slots Games RTP: 94.65%
  • Jackpot Slots Average RTP: 94.73%
  • Average number of Bonuses: 3
  • Average Stacked RTP: 97.62%
OVERALL RATING
★★★★ 4.7/5
Slots Variations 95%
Bonuses 94%
Mobile Compatibility 98%
Slots RTP 94%
Slot GameProviderRTPReels
Bonanza MegawaysBig Time Gaming96%6
Gonzo's Quest MegawaysNetEnt96%6
Who Wants to Be a Millionaire MegawaysBig Time Gaming93.96%6
Slingo StarburstPlay'n GO96.5%5
Slingo Rainbow RichesBarcrest95.6%5
Slingo BellsGaming Realms95.5%5
Eye of Horus Jackpot KingMerkur Gaming96.31%5
Blueprint Jackpot KingBlueprint Gaming96%5
Fishin' Frenzy Jackpot KingBlueprint Gaming95.02%5
Mega MoolahMicrogaming88.12%5

5 Mr Vegas Casino

Mr Vegas Casino slots

Mr. Vegas Casino earns its spot on our top UK slot sites list with a wide variety of slots from leading providers like NetEnt and Microgaming. Quality graphics, smooth gameplay, and slot-specific bonuses like free spins contribute to the experience, all backed by RNG technology for fair play.

  • Slots Games Average RTP: 96.5%
  • Jackpot Slots Average RTP: 95.7%
  • Number of Bonuses: 1
  • Average Stacked RTP: 96.2%
OVERALL RATING
★★★★ 4.5/5
Slots Variations 92%
Bonuses 92%
Mobile Compatibility 94%
Slots RTP 91%
Slot GameProviderRTPReels
StarburstNetEnt96.09%5
Gonzo's QuestNetEnt96%5
Book of DeadPlay'n GO96.21%5
Mega MoolahMicrogaming88.12%5
Immortal RomanceMicrogaming96.86%5
Thunderstruck IIMicrogaming96.65%5
Twin SpinNetEnt96.55%5
Dead or Alive IINetEnt96.8%5
Rainbow RichesBarcrest95%5
BonanzaBig Time Gaming96%6

Best Online Slot Sites by Category

In the following list, our experts have chosen the best casino slots in the UK based on categories such as RTP, bonus, and more.

THE BEST FIRST DEPOSIT SLOT SITES

The following list features the best casinos for first deposit bonuses on slots in 2023:

1
9.8

Mr Vegas casino

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Mr. Vegas entices UK players with a substantial first deposit bonus, boosting your initial bankroll significantly. Coupled with its reputation for swift payouts and dependable customer service, the site stands as a reliable choice for gaming.

First Deposit Bonus: 100% up to £200 + 11 free spins on first deposit

2
9.6

Magic Red casino

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Magic Red offers a generous first deposit bonus that is easy to claim and use. The site also has a wide range of slots to choose from, including popular titles like Starburst, Gonzo's Quest, and Book of Dead.

First Deposit Bonus: 100% bonus up to £25 + 25 spins

3
9.4

Karamba casino

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Karamba stands out for its generous first deposit bonus and extensive range of slot games, making it a compelling choice for slot enthusiasts.

First Deposit Bonus: 100% welcome bonus up to £200 + 100 spins

4
9.3

Dream Vegas

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Dream Vegas has swiftly become one of the favored choices among UK players, thanks to its sizable first deposit bonus and broad selection of slot games.

First Deposit Bonus: 100% welcome bonus up to £300 + 150 bonus spins

5
9.1

Duelz Casino

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Duelz Casino stands as one of the top picks for players seeking a generous first deposit bonus and a wide range of slots from industry-leading providers.

First Deposit Bonus: 100% up to £100 + 200 free spins


BEST SLOTS CASINOS FOR ONGOING BONUSES

The following list features the best casinos for Ongoing Bonuses on slots:

1
9.9

LeoVegas Casino

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LeoVegas Offers a 100% bonus up to £200 + 100 no wager spins on Big Bass. This ongoing slots bonus is beneficial for players as it doesn't require wagering, meaning players can withdraw their winnings directly.

2
9.7

Betfred Casino

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Betfred Casino Provides 200 wager-free spins as an ongoing bonus. This is advantageous as there are no wagering requirements on the free spins, allowing players to keep their winnings.

3
9.4

Betfred Casino

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Casushi Known for its generous ongoing bonuses, making it a top choice for players who enjoy regular rewards.


BEST SLOTS CASINOS FOR MINIMUM BET

The following list features the best casinos for Minimum Bet on slots:

1
9.8

PlayOJO Casino

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PlayOJO slots Known for its low minimum bet requirement, making it accessible for players with smaller budgets.

2
9.6

Bet365 Casino

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Bet365 Offers a variety of slots with low minimum bet requirements, providing flexibility for players.

3
9.2

Casimba Casino

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Casimba Offers a range of slots games with low minimum bets, making it suitable for players of all budget sizes.


Best Slots Casinos for Higher RTP

The following list features the best casinos for Higher RTP on slots:

1
9.8

Betway Casino

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Betway Casino Known for offering slots with high RTPs, increasing the chances of players making a return on their bets.

2
9.6

Grosvenor Casino

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Grosvenor Casino Offers a variety of high RTP slots, making it a good choice for players looking for higher returns.

3
9.2

Barz Casino

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Barz Casino Known for its selection of high RTP slots, providing players with a higher chance of winning.


The Best Slots Casinos in The Uk for Game Variety

1
9.9

LeoVegas Casino

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At LeoVegas, UK players will find a top range of slots from big names like NetEnt and Playtech. What sets LeoVegas apart is the option for players to create a list of favourite games, ensuring a personalised gaming experience. Additionally, enjoy thrilling tournaments where players can compete and potentially win while playing their preferred games. A superb way to enjoy entertainment and competition alike.

2
9.6

PlayOJO Casino

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PlayOJO stands out by offering a rich array of slots from diverse providers. With a continual influx of new games, and a spectrum ranging from classic to Megaways slots, players can enjoy varying volatility levels, unique features, and flexible bet sizes, ensuring a tailored and thrilling gaming experience.

3
8.7

Casumo Casino

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At Casumo Casino, UK players can explore a diverse array of slots including classic, video, and Megaways, with new additions regularly. Choose from slots with different volatility levels and exciting features like free spins and bonus rounds. No matter your budget or preference, Casumo’s variety ensures a slot game just for you.


Top Slots Software Providers in the UK

When selecting the ideal casino slots experience, the quality of the software is paramount. Exceptional slots software should encompass a diverse game variety, top-tier graphics and sound, a commitment to fair gameplay, and ensure both reliability and mobile compatibility. The right choice often hinges on these fundamental attributes.

  1. Microgaming

    A pioneer in the online casino scene, Microgaming has a rich selection of top-notch slot games known for captivating graphics, innovative bonuses, and intriguing themes.

  2. NetEnt

    Famous for its visually appealing and pioneering slot games, NetEnt offers titles with distinct gameplay mechanics and mesmerizing themes, ensuring a top-tier gaming journey.

  3. Playtech

    A key figure in the UK casino sphere, Playtech is celebrated for its graphically intense games, compelling narratives, and thrilling bonuses. They also present a vast array of branded slots tailored to a diverse audience.

  4. IGT

    Though IGT's fame originates from land-based casino offerings, their digital presence is just as influential. Their slots come with appealing graphics, unique themes, and pioneering bonuses, often featuring renowned brands like Monopoly.

  5. Play'n GO

    A preferred provider offering superior slot games with distinct themes and dynamic gameplay. Play'n GO's games are visually delightful, featuring cutting-edge sound and innovative bonuses, making them a UK favorite.


Choosing the Right Slot Game

In the list below, we have gathered for you the most effective tips for an optimal slot experience, aimed at significantly boosting your chances of winning.

  • RTP (Return to Player): Aim for games with higher RTP percentages for a greater winning potential.
  • Volatility: Match the game's risk level—high or low volatility—with your playing style and risk comfort.
  • Theme and Graphics: Personalize your gaming by picking a slot with an intriguing theme or captivating graphics.
  • Bonus Features: Games with bonuses like free spins or multipliers can boost your winnings and overall thrill.
  • Game Mechanics: Whether you prefer traditional paylines or expanding reels, select a slot that aligns with your gameplay preferences.
  • Jackpots: For grand win opportunities, opt for slots with progressive jackpots. Remember to check the betting requirements for jackpot eligibility.
  • Mobile Compatibility: In today's mobile-driven world, ensure your chosen slot performs smoothly on your device.
  • Provider Reputation: Opt for established providers known for delivering quality and fair play.

How to Play Online Slots

Playing online slots is extremely fun and easy, even if you are a beginner. To get started, follow these steps:

Choose Your Slot Machine
  • Pick a machine that you find interesting or appealing.
  • Consider the minimum bet, bonuses, and other features.

(Pay attention to the paylines, symbols, and bonus rounds. Each slot machine has different rules and payouts.)

Set Your Budget
  • Decide in advance how much money you are willing to spend.
  • Stick to your budget to avoid spending more than you can afford.
  • Insert cash, a ticket, or a card into the machine to purchase credits.
Place Your Bet
  • Choose how many paylines you want to play.
  • More paylines increase your chances of winning but cost more.
  • Decide how much money you want to bet per payline.
  • Multiply this by the number of paylines to calculate the total bet.
Spin the Reels
  • Wait for the reels to stop spinning.

(Some machines allow you to set a number of automatic spins.)

Understand the Outcome
  • The machine will automatically calculate the outcome.
  • Winning combinations will be highlighted, and winnings will be added to your credit.
  • Press the cash out button to collect your winnings.
  • The machine will issue a ticket or add credits to your card.
Continue Playing or Cash Out
  • If you have money left in your budget, you can continue playing.
  • If not, it's time to cash out and leave.
Tips:
  • Familiarize yourself with the paytable and rules of the slot machine.
  • Start with smaller bets to extend your playtime.
  • Pay attention to the machine's volatility and RTP (Return to Player) percentage.
  • Take breaks to ensure that you don’t spend too much time or money.

Different Types of Online Slot Machines

Leading game developers have developed thousands of online slot games. Each differs in its symbols, layout, themes, and paylines. Moreover, some stick to the classic-style gameplay, whereas others have impressive bonus rounds. All the games can roughly be divided into the below categories. Look and see which one you’re most drawn towards.

Classic Three-Reel Slots

Three-reel slots are more like traditional slot machines found at land-based casinos. These typically have one payline in which you need to match three winning symbols. As such, they are the simplest online slot game. It is easy to keep track of which spins win as there is only one payline. But anyone looking for fast-paced gameplay with exciting bonus features might be disappointed. Double Diamond by IGT is a great option if you are after a classic slot game.

Multi-Payline Slot Machines

Multi-Payline Slot Machines

Slot games with multiple reels and paylines offer players many ways to win. The most common layout has three rows of five reels, but some games have more reels and rows. This means you can win in many ways with one spin. If you bet on more than one payline, you can win in many ways on one spin. However, this raises the game’s volatility, which means the wins are more extensive but do not come as often. If you are looking for a tremendous multi-payline game, Playtech’s Reel Classic 5 is a good option.

Online Video Slots

Video slots are the most popular type of slot machines found online today. They typically have five reels and many paylines. This allows for more chances to win. These machines’ graphics and sound effects are incredible, making the experience even more fun. Video slots come in themes, including famous movie franchises and music groups. They often have exciting bonus rounds that make the game even more fun.

One of the most popular video slots at UK online casinos is “Jurassic Park.” This slot is based on a popular film franchise with well-known characters as symbols. If you hit the T-rex, you will unlock a bonus. Other popular options include “Thunderstruck II,” “Book of Ra,” and “Starburst.” If you know a theme you like, there is probably a video slot to match!

Progressive Slot Games

Progressive Slot Games

Some online slot games have a jackpot prize that gets bigger every time someone doesn’t win. This happens until someone finally does win. These games are called progressive jackpot slots. You can often find these games with prizes of $5,000 or more. If you want to take home a life-changing sum of money, these games could be the way to go.

The most famous progressive slot game is Mega Moolah by Microgaming. In 2015, one winner took home an astonishing EUR 17.8 million. This is still the most money ever won on an online slot game. It is worth noting that smaller progressives run on only one network are also available. But the top prize takes a lot longer to accumulate.

3D Online Slots

3D Online Slots

3D slots are a newer type of slot game. They have better graphics that make the screen look three-dimensional. The goal is to make the game on the screen seem as real as possible. Developers are trying to make it look like the symbols were right before you. These slots are more exciting for users. Some popular 3D slots include Cazino Cosmos, and Vikings Go To Hell by leading developer Yggdrasil.


How to Win Money Playing Online Slots

Online slot machines are all about luck. It does not matter what the machine has already shown, and it doesn’t matter who you are. A random number generator determines every spin. This means that you cannot use any skill when playing slots online. But that does not mean you cannot improve your results! If you want to win money playing online slots, follow the next tips:

🍇 Choose Your Slot Game Carefully

As we have gone through, there is a lot to consider when choosing an online slot. Yet, the most important thing to remember is to base your choice on your player type.

For example, you best choose slots with high volatility if you want a big payout quickly. This means they won’t pay out often, but when they do, the payouts are bigger. Gambling this way takes on significant risk for the chance of a big reward. On the other hand, if you want the best possible returns long-term, you’ll want to take a different approach. Choose the game with the highest RTP possible for the best long-term gains.

🍇 Capitalise on Casino Offers

When looking at RTP, a slot game with an RTP of 100% means you will not lose any money in the long term. There are no online slots with this RTP. Otherwise, the online casino would not make any money. The difference between the RTP and 100% is the house edge. This means that every online slot you play will result in losses in the long term. However, you can overcome this house edge by taking advantage of bonus offers.

Thank goodness, free spins are one of the most common casino promotions. As the name suggests, free spins let you have a go on slot games for free. The online casino will choose how many free spins you receive. They’ll also decide which slot titles you can claim them on. Look for free spin bonuses with low wagering requirements. This will increase the likelihood of you keeping any wins.

🍇 Stick with Your Gambling Budget

You need to have a gambling budget and stick to it. This is important when playing any form of online gambling. This means that you only spend what you can afford to lose and will prevent your losses from getting out of hand. Remember that the outcome of the previous spins has no impact on the following spins. Learn to walk away at the right time, whether on a hot or cold streak. Never chase your losses and never chase a more significant win – you’ll only end up losing more money that way.

FAQs

What are online slot machines?

Online slot machines are the electronic version of traditional slot machines that you can play at online casinos. They are based entirely on luck and require no skill to play.

How do I play online slots?

Playing online slots is easy. First, head to an online casino and select a slot game from their library. Then, set your stake level and choose how many spins you want to play. Hit the “Play” button, and the reels will spin. If you land winning symbols, your account will be credited.

What are the different types of online slot machines?

There are several types of online slot machines, including classic three-reel slots, multi-payline slot machines, online video slots, progressive slot games, and 3D online slots.

How can I win money playing online slots?

Online slot machines are based on luck, but you can improve your chances of winning by choosing your slot game carefully, capitalizing on casino offers, and sticking to your gambling budget.

What are scatter symbols in online slots?

Scatter symbols are symbols that score even if they aren't on the payline. Hitting a scatter anywhere on the reels will unlock its specific features, usually triggering bonus mini-games.

How do I choose an online slot game?

When choosing an online slot game, consider factors such as the game's RTP, leading developers, jackpot potential, theme, and bonus rounds.

What are multipliers in online slots?

Multipliers are symbols that multiply the value of your winnings by a fixed amount. Sometimes they are combined with wilds or scatters. When you hit more than one multiplier, your winnings are increased even further.

Preston Davis is a gambling writer based in London. He's always on the lookout for new Online casinos, bonuses, and games to write about - so you can be sure he's on top of any news as soon as it breaks. Preston takes his work seriously but likes to have fun too - which is why he thoroughly tests everything he reviews before giving his final verdict. Preston enjoys spending time with his wife and two young children when he's not writing or playing games.