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The Best Online Slots for UK Players: 2025 Ranking

If you want to play the best online slots, you need to be aware of the RTP rate, betting limits, maximum payout, variance, bonus rounds, and more. You also have a ton of options in terms of graphics, themes, jackpots, reel layouts, and visual effects. To help you out, we have checked the best slot sites available in the UK and ranked the top slot games you can try.

The Best Slots to Play from the UK

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Online Slot Slot Site RTP Jackpot Max Bet Rating Secure Link
95.97% No £50 5.00/5 Play Here
88.12% Yes £6.25 5.00/5 Play Here
96.09% No £100 5.00/5 Play Here
99.32% No £25 5.00/5 Play Here
94.86% Yes £30 5.00/5 Play Here
95.92% No £7.50 5.00/5 Play Here
95.70% Yes £100 5.00/5 Play Here
95.02% Yes £250 5.00/5 Play Here
96.21% No £50 5.00/5 Play Here
96.01% Yes £125 5.00/5 Play Here
94.93% Yes £1000 4.60/5 Play Here
96.82% No £5 4.70/5 Play Here
95.06% Yes £500 4.50/5 Play Here
96.62% No £100 5.00/5 Play Here
94.13% No £25 3.90/5 Play Here
94.09% No £1250 4.60/5 Play Here
96.86% No £60 4.75/5 Play Here
96.28% No £100 4.85/5 Play Here
96.96% No £500 4.50/5 Play Here
94.21% No £1500 4.20/5 Play Here
95.50% No £20 4.85/5 Play Here
95.08% No £1000 4.60/5 Play Here
95.56% No £5 4.50/5 Play Here
96.96% No £5 4.60/5 Play Here
96.10% No £1 4.45/5 Play Here
95.22% No £375 4.50/5 Play Here
96.55% No £125 4.65/5 Play Here
96.33% No £3,000 4.8/5 Play Here
96.01% No £100 4.3/5 Play Here
96.00% No £200 4.6/5 Play Here
96.01% No £90 4.0/5 Play Here
95.02% No £500 4.6/5 Play Here
96.05% No £2,500 4.8/5 Play Here
96.00% No £200 4.7/5 Play Here
95.00% No £500 4.6/5 Play Here
95.99% No £200 4.3/5 Play Here
94.91% No £10,000 4.4/5 Play Here
95.5% Mini, Midi, Mega Jackpot £50 4.5/5 Play Here
96.70% No £90 4.5/5 Play Here
96.53% No £450 4.6/5 Play Here
94.90% No £165 4.7/5 Play Here
95.00% No £500 4.5/5 Play Here
95.00% No £270 4.6/5 Play Here
96% No £500 4.4/5 Play Here
96.08% No £250 4.5/5 Play Here
94.98% No £200 4.5/5 Play Here
96.40% No £150 4.5/5 Play Here
93.04% No £60,000 4.6/5 Play Here
93.50% Yes £300 4.3/5 Play Here
96.40% No £300 4.5/5 Play Here
96.09% No £10,000 4.6/5 Play Here
96.30% No £5 4.2/5 Play Here
96.47% No £180 4.8/5 Play Here
95.03% No £240 4.6/5 Play Here
96.33% No £20,000 4.7/5 Play Here
94.97% No £250 3.8/5 Play Here
95.48% No £250 4.6/5 Play Here
95.75% No £250 4.2/5 Play Here
95.62% No £1,250 5.0/5 Play Here
96.98% No £200 5.0/5 Play Here
95.13% No £125 5.0/5 Play Here
95.50% No £20 4.6/5 Play Here
96.60% No £150 4.6/5 Play Here
94.98% No £80 4.6/5 Play Here
96.42% No £3,000 4.6/5 Play Here
96.47% No £250 4.6/5 Play Here
96.49% No £500 4.5/5 Play Here
96.67% No £15 4.8/5 Play Here
96.23% No £200 4.2/5 Play Here
96.16% No £500 4.4/5 Play Here
95.42% No £200 4.0/5 Play Here
96.62% No £100 4.3/5 Play Here
95.70% No £125 4.7/5 Play Here
96.42% Yes 100 coins 4.7/5 Play Here
96.24% No £20 4.6/5 Play Here
95.90% No £20 4.4/5 Play Here
96.04% No £50 4.6/5 Play Here
97.00% No £50 4.9/5 Play Here
96.13% No £100 4.9/5 Play Here

All sites are licensed by the UK Gambling Commission.

The Best Slot Sites Available for UK Players in 2025

If you want to play slots online, your choice of casino will greatly impact your overall experience. Most importantly, you need to be certain that the casino is licensed, secure, and fair. Other important factors include the number of games & software providers, the mobile compatibility, the welcome bonus and the slot contribution to the playthrough.

To help you out, we have checked numerous online casinos based on a thorough review process with 10 steps. Here is the latest ranking of the best slot sites for UK players:

5.0/5 Get £30 1,700+ Immortal Romance PLAY Here! Full T&Cs apply. 18+. New Casino players only. Deposit required. Play £10+ on qualifying games. 40x wager reqs (Bonus only) on selected games. Accept Bonus within 14 days. Bonus valid for 30 days. Certain deposit types excluded. Player restrictions and T&Cs apply. GambleAware.org
4.9/5 £100 550+ Jack Hammer PLAY Here! Full T&Cs apply. 18+ new players only. Min deposit: £20. Max £100 bonus. Max bet with active bonus: £2. Wagering required 100% match bonus: 30x deposit + bonus. Max win from welcome bonus: £500. 100 Free Spins are given out 20 per day on Book of Dead for 5 days in a row. Max Free Spins winnings: £100. Free Spins winnings credited as bonus money with 45x wagering & 3 days expiry. Deposit bonus & Free Spins wins are forfeited 30 days after bonus is credited if the wagering is not met. Game weighting and restrictions apply. Play Responsibly www.gambleaware.org.
4.8/5 100% up to £150 Matched 1000+ Gonzo’s Quest PLAY Here! New players & 1st deposit only. Min deposit £10 with code WOW150. Deposit matched Games Bonus [“GB”] is 100% up to £150 + 25 Free Spins [“FS”]. FS must be claimed by 23:59 on day they are received and are valid for 3 days. FS valued at £0.10 per spin. FS can be used selected games only. Winnings from FS granted in Games Bonus [GB]. All GB funds must be wagered x35 before it can be cashed-out up to a value of £100. 18+. Full T&Cs apply.
4.8/5 100% up to £200 1600+ Aloha! Cluster Pays PLAY Here! Full T&Cs apply. *18+. New players only. Min deposit £20. Max bonus bet £5. Bonus spins on selected game only and must be used within 72hrs. Winnings from Bonus spins credited as bonus funds and capped at £100. Bonus funds expire within 30 days. Offer is 100% bonus match up to £200 + 50 Bonus spins on your 1st deposit, and 50% bonus match up to £50 on your 2nd deposit. Bonus funds are separate to cash funds & subject to wagering requirement (35x deposit + bonus). Only bonus funds contribute towards wagering requirement. Affordability checks apply. Terms apply. Please gamble responsibly. GambleAware.org
4.8/5 Get £50 450+ White King PLAY Here! Full T&Cs apply. 18+. New customers only. Min spend £10 on qualifying games. Certain deposit types excluded. £50 Bonus on selected games subject to 40x wager req. Must accept within 14 days, valid for 30 days. Player restrictions and T&Cs apply.
4.8/5 £100 700+ Starburst PLAY Here! Full T&Cs apply. Offer Terms: 18+. New members only, must opt in. Min £10 deposit & wager (excl. sports betting). 30 day expiry from deposit. 18+. Free Spins: on Double Bubble. 1p coin size, max lines. Game availability & restrictions apply. #AD gambleaware.org
4.7/5 £300 1600+ Gonzo’s Quest PLAY Here! Full T&Cs apply. 18+. New players only. One bonus offer per player. Minimum deposit £20. Max bonus bet is £5. Bonus spins on selected games only and must be used within 72 hours. Bonus funds must be used within 30 days otherwise any unused bonus shall be removed. Bonus funds are 100% match up to £300 on your 1st deposit. Bonus funds are separate to Cash funds, and are subject to 35x wagering the total bonus & cash. Only bonus funds contribute towards any wagering requirements. Terms apply. GambleAware.org
4.6/5 Up to 500 Free Spins 2900+ Pharaoh’s Fortune PLAY Here! Full T&Cs apply. 18+ New players, £10+ deposit, no e-wallets/prepaid cards, up to 500 Free Spins, 40x wagering on Free Spins winnings, £5 max bonus stake. Terms apply. GambleAware
4.5/5 Up to 200 Spins 800+ Immortal Romance PLAY Here! Full T&Cs apply. Terms and Conditions apply. New players only 18+. Min deposit £20. Spins available for: Starburst. Wagering requirements apply: x35. Offer valid for 24hrs. Spins will be credited as 50/50/100 for 3 consecutive deposits.
4.4/5 Deposit £20, Play With £50 500+ Gladiator PLAY Here! Full T&Cs apply. NEW CUSTOMERS ONLY. MIN DEPOSIT £20 (EXC PAYPAL). MAX BONUS £30, BONUS AMOUNT NON-WITHDRAWABLE, PLAYABLE ON SELECTED GAMES ONLY. 30X WAGERING FOR £30 BONUS. EXPIRES WITHIN 30 DAYS. MAX WIN £2,000.*T&CS APPLY. GambleAware.org

All sites are licensed by the UK Gambling Commission.

We have verified that these slot sites are licensed by the UKGC and safe for British players. More details can be found in the individual reviews. The ratings on this page may differ from the review ones, since we’re using a modified version of the criteria for selection of the best online casinos.

Rating Process and Criteria

The main goal of this article is to identify the best slot games and to recommend safe casino sites where our readers might try them.

This requires numerous game tests and casino checks. We lean heavily on 10 years of reviewing experience and follow a unified step-by-step process. We want you to make informed decisions based on reliable and detailed information, so transparency is one of our keywords.

For each online slot or casino sites featured in this article, there is a detailed review available – or in progress. There you can find all the nitty-gritty details that determine our recommendations. Our ratings are based on objective data – though there is a small degree of subjectivity as well.

After all, it’s hard to ignore the ‘fun’ factor when online slots are concerned!

About the Author of This Article

James Awaland has been writing about online slot games & sites for more than ten years – and started playing long before that! He has personally reviewed 99 online slots and 74 casino sites and prepared numerous articles & guides to aid his fellow gambling enthusiasts.

With a degree in Mathematical Sciences, James also draws on his knowledge of odds and probabilities in his slot reviews. The goal of James’s article is straightforward: to enhance your enjoyment of this shared hobby. Through his thorough reviews and expert advice, James aims to guide you towards slot sites and games that provide first-class entertainment in a safe environment.

James Awland
UK Online Casino Tester
Finding the best slot sites and games takes an analytical approach. I use my experience as a player and my expertise as a reviewer to guide you to the best gaming options.

I’ve learned that when creating gambling content, knowledge offers an edge, but ultimately, it’s about the enjoyment and sharing my honest expertise with others.

How to Find the Best Slot Games

We follow a detailed review process to select the best online slots for UK players. We assess various factors that impact your playing experience and potential returns.

You can find all the information you need about the paylines, betting limits, and RTP. Playing the games is another important part of our review process. We assess the gameplay and entertainment factors by spinning the reels, which influences our overall scores and rankings.

Here is what we check for all online slots featured in this article:

  1. Slot RTP – We check the Return to Player percentage, which indicates the potential payout over time. A higher RTP means more returns to the player, making it an important factor in our reviews.
  2. How Many Paylines – The number of paylines affects the winning combinations. We consider slots with various payline options, allowing players to choose games that match their risk tolerance and playing style.
  3. Bonus Rounds and Free Spins – These features can significantly enhance gameplay. We check whether a game includes engaging and rewarding bonus rounds and free spins, adding excitement and additional chances to win.
  4. Other Special Slot Features – From wilds and scatters to multipliers and cascading reels, we evaluate the creative features that make each slot unique and can increase payout opportunities.
  5. Theme & Graphics – A great slot game isn’t just about mechanics; it’s also about visual appeal and engaging themes. Whether it’s adventure, fantasy, or classic fruit machines, the theme and quality of graphics play a big role in our assessment.
  6. Betting Limits – We consider the range of betting options available. We check the minimum and maximum bet sizes to determine what type of players the game will appeal to.
  7. Type of Slot Game – From classic three-reel games to complex video slots and progressive jackpots, understanding the type of slot helps players find the game that suits their preferences.
  8. Variance and Volatility – Variance determines how often and how much you can expect to win during a session. We analyse whether a game is low, medium, or high volatility to match different player expectations.
  9. Max Wins & Jackpots – We check the paytable to find the potential maximum wins. We also confirm if the game offers fixed or progressive jackpots.
  10. Mobile Compatibility – As gaming on the go becomes more popular, we ensure that slots perform well on mobile devices, offering a seamless experience regardless of the platform.

How We Ranked the Top Slot Sites

The main goal of ranking the best slot sites is to provide you with venues where you can try our recommended slots. We start by conducting thorough licensing and security checks to ensure we only recommend legit, trustworthy operators. We assure you that every recommended site provides a safe, enjoyable, and fair gaming experience.

We follow a structured approach to ensure consistency across our rankings. Each step is designed to assess important aspects that affect your playing experience. We base our final ranking on each slot site’s overall performance across all review categories. Here’s a breakdown of our review process:

  • Safety Check

    First and foremost, we confirm that the slot site is licensed by the UK Gambling Commission.[1] This verifies the site’s commitment to legal and responsible gambling practices. This includes adherence to regulations and promoting responsible gambling habits among players.

  • Security Check

    We assess the security measures in place, such as SSL certificates and other encryption technologies. These are essential for protecting player data and transactions, ensuring a secure user environment.

  • Fair Games and Payout Reports

    Our reviews check for the fairness of games through independent audits. We look for certification from organisations like eCOGRA and iTech Labs, who verify the random number generators and payout reports, providing assurance that the games are fair and transparent.

  • Deposit and Withdrawal Options

    We evaluate the variety of payment methods a site accepts. A good slot site offers secure and diverse payment methods, allowing players to deposit and withdraw funds conveniently with debit cards, e-wallets, and other popular methods, such as Apple Pay.

  • Slot Game Selection

    The variety and quality of slot games are key factors we assess. We look for sites offering a wide range of games that cater to different preferences, ensuring a rich and varied experience.

  • Software Providers

    We ensure that reputable software providers power the slots. We check for leading providers like NetEnt and Microgaming, who are known for their high-quality, fair, and innovative games.

  • Bonuses and Promotions

    We assess the value and fairness of the bonuses and promotions offered. Sites that provide generous yet achievable bonuses for playing slots score higher in our reviews.

  • Customer Support

    Effective customer support is vital. We rate sites higher if they offer quick, helpful, and accessible support, ensuring players can resolve issues and have an enjoyable experience.

The Importance of Responsible Gambling

Responsible gambling is essential to ensure that playing slots remains a fun and safe activity. Slots provide engaging, fast-paced gameplay. This poses the risk of losing track of time and spending more than you can afford to lose. So, we recommend you set limits on the time and money spent in online casinos to maintain control over your gaming habits.

Playing slots should be an enjoyable pastime, not a financial burden. Players need to recognise the signs of problem gambling,[2] such as chasing losses or gambling interfering with daily responsibilities. Reputable slot sites promote responsible gambling by providing tools to help players manage their gaming activities effectively.

Remember, responsible gambling is not just a recommendation but a necessity. It ensures that the thrill of playing slots does not turn into a risk to your health, finances, and relationships. Always play within your limits and seek help if you notice gambling negatively impacting your life.

If you are concerned about your gambling behaviour, we urge you to seek help without delay. Various responsible gambling organisations can provide confidential, free help to anyone affected by problem gambling. Here are some of the organisations that you can reach out to:

  • GAMSTOP The UK’s gambling self-exclusion register
  • Leading provider of support for gambling-related problems
  • Offers confidential support for gambling addiction

The Top 10 Online Slots in Detail

Our team have reviewed many online slot games. We assess various factors, including RTP, themes, features, and betting limits. Based on our detailed checks, we have selected the top 10 best online slots. In the next section, you will find an overview of each game and what makes them stand out.

We will regularly update the current 2025 list with the latest slots that score highly in our reviews. We are dedicated to bringing you up-to-date information on the best and most exciting slots available to UK players.

  1. Gonzo’s Quest (by NetEnt) – Best-Rated Online Slot in the UK
  2. Mega Moolah (by Microgaming) – Best Jackpot Slot
  3. Starburst (by NetEnt) – Most Popular Video Slot
  4. Goblin’s Cave (by Playtech) – Highest RTP Slot
  5. Game of Thrones (by Microgaming) – Best Online Slot Theme
  6. Avalon 2 (by Microgaming) – Best Slot with Bonus
  7. Cleopatra (by IGT) – Best Slot Game with Egypt Theme
  8. Age of the Gods (by Playtech) – Great Progressive Jackpot System
  9. Book of Dead (by Play’n GO) – Best Free Spins Feature
  10. Wolf Gold (by Pragmatic Play) – Great Stacked Wilds Feature

Gonzo’s Quest

The Gonzo’s Quest Online Slot

Gonzo’s Quest is a hugely popular NetEnt slot with 5 reels, 3 rows, and 20 paylines. Bets start at £0.20 per spin. The Incan-style stone block symbols cascade into place on each spin. Land a winning combination, and the symbols explode, allowing new ones to fill their place. This Avalanche feature enables you to land consecutive wins with increasing multipliers from 1x – 5x.

I particularly like the Free Fall feature, which gives you 10 free spins. During the free falls, win multipliers build from 3x to 15x, providing the chance to stack up bigger wins. Our team highly rates this fun-filled, adventure themed slot. Read our Gonzo’s Quest review to see why.

Advantages

  • Avalanche Feature
  • Increasing Multipliers
  • Free Falls Feature
  • 3D Animations
  • 95.97% RTP
  • Mobile-Friendly

Disadvantages

  • No Progressive Jackpot
  • No Bonus Round
  • Fixed Paylines

Mega Moolah

The Mega Moolah Online Slot

We rate Mega Moolah as the best jackpot slot to play online. This record-breaking progressive jackpot slot has made several lucky players millionaires. Mega Moolah has 5 reels and 25 paylines. Bets start at £0.01, making it a great choice for beginners and low stakes players. The game features free spins where all wins are tripled. It also has a multiplier wild which doubles the payout.

Like the rest of the team, I enjoy playing the Mega Moolah slot. While the chances of hitting the jackpot are slim, you cannot beat the thrill of knowing that any spin could randomly trigger the jackpot game. Given the popularity of this game, it is available at many of the best slot sites in the UK. Find full details in our Mega Moolah review.

Advantages

  • Progressive Jackpot
  • Free Spins with 3x Multiplier
  • Multiplier Wild
  • Fun Animal Theme
  • Adjustable Paylines
  • Available for iOS & Android

Disadvantages

  • High Stake Bets Unavailable
  • Jackpot Rarely Triggered
  • Low RTP

Starburst

The Starburst Online Slot

Starburst is an iconic NetEnt slot. This popular video slot has the feel of an arcade game, with slick graphics, blasts of light, and electrifying sounds. Starburst is a 5-reel slot with 3 rows and 10 paylines which pay both ways. You can play this game with a minimum bet of £0.10. Expanding Starburst Wilds are the game’s key feature. When a wild lands, it expands to fill the entire reel and locks in place for a re-spin.

If you read our Starburst review, you’ll see the game lacks free spins, bonus rounds, and other typical slot features. Yet, this is what I love about the game. It features simple yet high-paced and energising gameplay that immerses you into the game. It was released in 2012 and remains one of the best slots to play online for real money in 2025.

Advantages

  • Low Volatility
  • Win Both Ways
  • Expanding Starburst Wilds
  • Arcade-Style Gameplay
  • Immersive Sound Effects
  • Win up to 50,000 Coins

Disadvantages

  • No Free Spins
  • No Bonus Game
  • No Win Multipliers

Goblin’s Cave

The Goblin's Cave Online Slot

Goblin’s Cave is an innovative Playtech slot. It is a 3×3 slot with stakes starting at £0.03. When you click spin, the bottom reel fills with symbols. You can hold any of these symbols before spinning again. This hold feature adds an element of skill to the game, which is reflected in the RTP. When you play with max coins and optimum strategy, the RTP reaches a massive 99.32%.

This is one of the most unique online slot games I have seen. If you want a change from classic gameplay, I highly recommend giving Goblin’s Cave a try. Our team found the element of decision making provided a unique gaming experience unlike other online slots. Check our Goblin’s Cave review for more details.

Advantages

  • High RTP – Up to 99.32%
  • Pick and Win Bonus Game
  • Hold Symbol Feature
  • Wide Betting Range
  • Element of Skill Involved
  • Innovative Gameplay

Disadvantages

  • Dated Graphics
  • No Free Spins
  • Not Available for Mobile

Game of Thrones

The Game of Thrones Online Slot

The Game of Thrones TV show may be done and dusted, but you can still get your fill with the Game of Thrones online slot. The 5×3 slot authentically captures the TV show theme with its symbols, music, and features. This slot is available with 15 paylines or 243 ways to win. The slot includes stacked wilds and a gamble feature. It also has a free spins selection, where you choose from four features with differing combinations of free spins and multipliers.

As a Game of Thrones fan, this is one of my favourite online slots. However, our team is a mixed bag. Not everyone liked the show, and therefore, not everyone enjoyed the game as much. Still, we all agreed that GOT enthusiasts will love this game. Find out more about the slot in our Game of Thrones review.

Advantages

  • TV Show Theme
  • Scatter Pays
  • Free Spins Selection
  • Stacked Wilds
  • Gamble Feature
  • Choice of 15 or 243 Ways to Win

Disadvantages

  • No Bonus Game
  • No Progressive Jackpot
  • Niche Theme

Avalon 2

The Avalon 2 Online Slot

Avalon 2 is a medieval-themed Microgaming slot focusing on the legend of King Arthur and the Knights of the round table. The slot has 5 reels, 3 rows, and 243 ways to win. The minimum bet size is £0.30 per spin. This game’s highlight is the Holy Grail bonus. It is an 8-level bonus round. Among the bonus games, you will encounter trailing wilds, free spins, multipliers, and cash prizes. Our Avalon 2 review includes a full breakdown of the bonus games.

This slot is a sequel to the popular Avalon slot, and it brings a lot more to the table. I was impressed with the sheer variety of special features that are offered in the Holy Grail bonus. The bonus features include player favourites, like free spins, alongside unique mini games our reviewers have not seen in other slots.

Advantages

  • Player-Favourite Theme
  • Multi-Level Bonus Round
  • Win Multipliers
  • Free Spins
  • Trailing Wilds
  • Mobile Compatible

Disadvantages

  • No Gamble Feature
  • No Jackpot
  • Fixed Paylines

Cleopatra

The Cleopatra Online Slot

The Cleopatra slot by IGT is a popular land-based casino game that is also available to play online. The 5-reel Ancient Egypt-themed slot has an adjustable 20 paylines. You can play with min bets of £0.01 per spin. Cleopatra is the wild symbol, which doubles the payout when completing a winning symbol combination. The slot also features a free spins bonus with wins multiplied x3.

While there is no shortage of new slots you can play online, players return to Cleopatra time and again. It is a timeless classic that is just as popular online as at land-based casinos and arcades. If you read our complete Cleopatra review, you’ll see that it rightly deserves its place on our top 10 online slots list.

Advantages

  • Popular Egyptian Theme
  • Good Betting Range
  • Wild Wins Pay x2
  • Free Spins with 3x Multiplier
  • Mobile-Friendly
  • Scatter Pays

Disadvantages

  • Dated Graphics
  • No Jackpot
  • Basic Sound Effects

Age of the Gods

The Age of the Gods Online Slot

Age of the Gods is one of Playtech’s best online slots. The 5×3 game has 20 paylines, a minimum 20p bet and a Greek mythology theme. It boasts the Age of the Gods bonus, featuring four free spins features. The Hercules, Athena, Poseidon, and Zeus free spin games have extra features, such as increasing multipliers and sticky wilds.

The Pantheon of Power feature is another lucrative bonus, that awards a 200x payout for landing five gods on consecutive reels. Yet, the progressive jackpot is the true highlight of this game. It can be randomly triggered on any spin, and hitting the feature guarantees one of four jackpot prizes. The jackpots are linked across various Age of the Gods games, meaning the prize pots build quickly.

Advantages

  • Progressive Jackpot
  • Pantheon of Power Feature
  • 4 Free Spins Games
  • Free Spin Multipliers
  • Popular Theme
  • Wild Substitutions

Disadvantages

  • No Gamble Feature
  • Fixed Paylines
  • No Base Game Multipliers

Book of Dead

The Dead or Alive Online Slot

Book of Dead by Play’n GO takes players on an enthralling adventure through Ancient Egypt with Rich Wilde, the intrepid explorer. This popular slot features 5 reels and 10 adjustable paylines, meaning you can play for just a penny a spin. The Egyptian-themed graphics and symbols, including the adventurer Rich Wilde, are beautifully crafted and immerse you in the gameplay. The game has a high 96.21% RTP and high variance.

The standout feature of Book of Dead is the free spins bonus. This not only awards 10 free spins but also randomly selects a symbol to expand across reels during the free spins. In my opinion, the expanding symbol feature sets this free spins feature apart from other slots, increasing the winning opportunities.

Advantages

  • Free Spins with Expanding Symbol
  • High RTP – 96.21%
  • Mobile Compatible
  • Wide Betting Range
  • Popular Egyptian Theme
  • Stunning Graphics

Disadvantages

  • No Bonus Round
  • No Jackpot
  • No Win Multipliers

Wolf Gold

The Deal or No Deal Online Slot

Wolf Gold by Pragmatic Play is a native American-themed game where majestic animal symbols fill the reels. This slot game features 5 reels, 25 paylines, and offers bets from £0.25 per spin. The feature-rich slot boasts an excellent Stacked Wilds feature. The wolf wild appears stacked on the reels and can help boost your chances of lining up winning symbol combinations.

Additionally, the game boasts a Money Respin feature that offers the chance to win multiple times on a single spin and leads to three potential jackpots. There is also a free spin feature, where giant symbols fill the 3 middle reels. These exciting features make Wolf Gold one of the best slots to play online.

Advantages

  • Stacked Wilds
  • Free Spins with Giant Symbol
  • Money Respin Feature
  • 3 Fixed Jackpots
  • Scatter Pays
  • Optimised for Mobile

Disadvantages

  • Lacks Progressive Jackpot
  • No Gamble Feature
  • Fixed Paylines

Online Slot Guide

Online slots are easy to play. Still, there are some basics you should know before you start playing with real money. You should familiarise yourself with game configurations, including rows, reels and paylines. You should know the different types of symbols and how they create winning combinations. It is also advisable to know about RTP and variance, which tell you about how a slot’s payout behaviour. Below, we delve into the important slot terms in more detail.

  • Reels

    You will encounter slots with varying numbers of reels when playing online. The most common type of online slots are video slots. These games usually have 5 reels, although, some games could have 6, 7 or even more reels. You could also come across classic online slots. A traditional classic slot game will have just 3 reels.

  • Rows

    When you play video slots online, you will find most games have 3 rows. Still, some video slots have 4 rows, and some have even more innovative set ups. For example, Megaways slots have expandable rows and can go from 2 to 7 during the game. You will find classic fruit machines have either 3 rows or a single row across the 3 reels.

  • Bet

    Most online slot games available in the UK have adjustable bet sizes. You can adjust the bet per line, the bet level, and sometimes the number of bet lines can be adjusted. All these factors combined will determine the bet per spin. Most slots have a minimum bet of 1p per payline. The maximum bet varies between games. You can use the max bet button to play with the largest possible stake.

  • Paylines

    Paylines are the lines across a slot’s reels where winning combinations of symbols must land to award payouts. The number of paylines in online slots varies, influencing the number of ways to win. In some games, the number of paylines is fixed, whereas others are adjustable. Players must land matching symbols on these lines according to the game’s rules to secure a win.

  • Winning Combinations

    Online slots commonly pay out from left to right. If you land a certain number of matching symbols consecutively from the first reel on an active payline, you will receive a payout according to the paytable. The more symbols you land, the higher the payout. Some games pay out from right to left. Others, such as Starburst, pay both ways. Some games, such as Immortal Romance, have 243 ways to win, with payouts awarded for matching symbols in any position on consecutive reels.

  • Paytable

    A paytable is a reference chart that players can consult to understand the value of each symbol, the payline configuration, and the rules for triggering bonus features. It details how much each symbol combination pays out and explains the mechanics of any special symbols like wilds, scatters, or bonus icons.

  • Symbols

    Online slots have various symbols that payout when you land a matching symbol combination on a payline. Yet, there are also some special symbols to be aware of. Many games feature a wild. A wild symbol will substitute for another symbol to create a winning combination. In some games, wilds can be multiplier symbols, which could double or triple a payout when completing a winning combination. You may also encounter expanding wilds, which expand to fill an entire reel.

    Sticky symbols are a type of bonus feature that lock onto the reels when they land and stay in place for further spins. Sticky wilds are a popular feature in free spins bonus rounds. Stacked symbols are a sequence of identical symbols that are stacked onto the reels. This boosts the chances of them becoming part of a payline. Colossal symbols are larger than standard symbols and cover more positions on the reels.

    Many slots include scatter symbols. These symbols do not need to appear consecutively on a payline to award a win. Instead, usually landing 3 or more scatters anywhere on the reels will payout a multiplier of your total bet. Scatters often trigger bonus games and free spins features. In some of the best online slots in the UK, the scatters only trigger a feature and do not also provide a payout.

  • Bonus Rounds

    Bonus rounds are special features that offer players the chance to win extra prizes beyond standard gameplay. Often triggered by specific symbols or symbol combinations, these rounds can vary widely in style and format. They include mini-games, pick-and-win games, free spins, or complex multi-level challenges. They often provide high entertainment value and the potential for sizable payouts.

  • Free Spins

    Free spins are bonus rounds that allow players to spin the reels without placing additional bets. These spins are often awarded when specific bonus or scatter symbols appear on the reels. Some slots include enhanced features in their free spins bonuses, such as multipliers, special wilds, or expanding symbols.

  • Autoplay

    Autoplay is a function that allows players to set a specific number of spins to run automatically at a preset bet amount. However, as of 2021, the UKGC banned autoplay in online slots in the UK.[3] This decision was part of a series of responsible gambling measures intended to prevent players from losing track of their playtime and expenditures, enhancing player protection.[4]

  • Return to Player

    The Return to Player (RTP) percentage expresses the portion of all wagers on a slot game that are paid back to players as winnings. For example, the Gold Blitz slot has a 96% RTP, meaning it pays out £96 of every £100 wagered over the long run. You will also hear house edge mentioned. This refers to the portion of wagers that the casino keeps as profit. Many players seek the best RTP casino slots as they pay out more overall.

  • Variance

    Variance, also referred to as volatility, tells you about a slot’s payout behaviour. Low volatility games pay wins frequently, yet the payouts are small. High volatility slots, on the other hand, pay out infrequently. However, when the wins land, they tend to be big in size. Medium variance slots fall between low and high variance online slots.

If you feel familiar with these slot machine terms, then you’re ready to go out on the online scene! In the next parts of our guide, we’ll cover the main aspects of playing slots online.

How to Play Slots Online

If you want to play online slots with real money from the UK, then you need to follow these simple steps.

  • Time Needed: 00:30
  • Tools Needed: Laptop or Mobile
  • Software Needed: Email
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1 Pick the Best Slots
Some of the main criteria when choosing an online slot game can be: RTP, volatility, jackpots, bonus rounds, bet range, max win, graphics, software or features such as autoplay.
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2 Find a Safe Slot Site
The main features of safe slot sites include: a valid licence from the UK Gambling Commission, certified payout audits from independent organisations such as eCOGRA, secure payments and data protection.
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3 Check the Slot RTP
The Return to Player Rate of online slots represents the long-term payout percentage from all placed bets. Higher RTP indicates better odds of winning – however, you should consider other factors such as variance.
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4 Choose a Slot Bonus
Most UK online slot players prefer to boost their betting balance with a casino bonus. You should always check the wagering terms before opting in for a bonus deal – claim only bonuses with 100% slot game weight.
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5 Try the Mobile Slots
Most of the new online slot games are fully optimised for mobile play on both Android and iPhone. Playing on the go is a must nowadays, so you should make sure that your chosen platform offers a good mobile experience.
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6 Register and Deposit
When you have finished your selection, you should create your account at the chosen UK slot site. You will need to verify your identity to guarantee the safety of your money. When making your first deposit, choose a payment tool which you can use for withdrawals later on.

Advantages and Disadvantages of Playing Online Slots

Advantages
  • Dynamic gameplay
  • Higher payouts
  • Huge jackpots
  • No skills needed
  • 100% bonus contribution
  • Great variety of games
Disadvantages
  • Higher potential addiction
  • Not engaging, only spin needed
  • Few live game versions

In terms of gameplay, there could not be any easier game to play than slots. Slots offer amusing features and require no skill to play. The only thing you need to do before you start playing is to select the number of lines to play and set the bet per line. Then, you simply press the ‘Spin’ button to play the game.

Some table games like roulette are also fairly simple to play. However, video poker and blackjack require more strategic thinking, and your decisions can make the difference between a win and a loss. An indisputable advantage of playing online slot games is the opportunity to hit a huge jackpot, which can even reach millions. This is not possible in classic casino games like blackjack or roulette.

When playing slots, the entertainment is guaranteed not by challenging gameplay and strategic thinking but through great graphics and sound effects. Also, video slots often include great animations, videos and interesting bonus rounds, adding extra excitement to the gameplay.

You can find many new and innovative slots at online casinos from well-established and up-and-coming software developers. These developers typically have their finger on the pulse of the online gambling industry and create cutting-edge slots with excellent graphics, storytelling, and unique features.

Slots, however, also have a few drawbacks compared to classic casino games. Few live versions of slots exist. Given that live dealer games are incredibly popular, the limited options to play slots at live dealer casinos may deter many players from them.

Also, the potential for addiction is higher with slots than some other games.[5] So, once you have chosen a slot site and game, we advise you to set limits and play responsibly. After all, responsible gambling is the best way to make playing slots safe and fun. Every reputable online casino will provide tools to help you play responsibly.

Another possible drawback to slots is that they are not always suitable for high rollers. The limits are not usually as high as table games, given that the government has introduced a maximum stake limit of £5 for online slots for anyone 25 and over. For players aged 18-24, the maximum bet is just £2.[6]

If you prefer to place large wagers, you can check the games available at the top high stakes casinos in the UK. On the other hand, if you prefer playing with small stakes, you can enjoy some of the best penny slot machines to play at our recommended casinos.

How to Stay Safe When Playing Slot Games

When gambling online, you must be aware of the potential risks. One danger is gambling addiction, which can lead to significant personal and financial consequences if not managed responsibly. Additionally, the risk of encountering disreputable operators that might misuse personal or financial information or provide unfair games remains a concern.

Playing at safe sites is essential to mitigate these risks. Choosing a licensed and regulated site ensures that games are fair and your data is protected. Legit operators also promote responsible gambling and provide various tools to help players manage and stay in control of their gambling behaviour.

Checking for a UKGC licence, typically displayed in the site’s footer, is the best way to verify that a casino site is trustworthy. Also, look for game audits and payout reports by independent bodies like eCOGRA, which confirm game fairness and randomness. Additionally, SSL certificates are important as they encrypt your data and secure your transactions.

These steps will help ensure your online gambling experience is secure and enjoyable, allowing you to focus on playing top slots online without concerns about your safety. Below, you can see some of the key safety features at the slot sites recommended in this guide:

UK Slot Site UKGC Licence Fair Game Audit Responsible Gambling
Ladbrokes 54743 GLI GAMSTOP
Duelz 48695 RNG Certified Gambers Anonymous
Fantastic Spins 58267 eCOGRA GambleAware
Casimba 52894 RNG Certified Gambling Therapy
Coral 54743 GLI GamCare
Bally Casino 38905 eCOGRA GambleAware
The Grand Ivy 52894 RNG Certified GAMSTOP
NetBet 39170 iTech Labs GamCare
BetGrouse 39483 iTech Labs GamCare
Grosvenor 57924 RNG Certified Gambling Therapy

As the lead author, I personally double-check the safety of all slot sites listed on this page to ensure they meet the highest standards of security and fairness. Each site undergoes a rigorous review process, confirming that they hold valid licences from the Gambling Commission, feature SSL encryption for data protection, and have their games independently audited.

How to Win on Slots: Our Tips

Winning at online slots relies heavily on luck. That said, it also requires a strategic approach to maximise your chances of success. While the outcomes are largely determined by the Random Number Generator, understanding the mechanics and adopting smart betting practices can enhance your gameplay experience and improve your odds. Here are my top 10 tips for playing online slots effectively:

  1. Choose Higher RTP Slots Select slots with a high Return to Player (RTP) percentage, typically over 96%, as they pay back a larger portion of bets to players over time.
  2. Study the Paytable Familiarise yourself with the game’s paytable to understand the value of each symbol, winning combinations, and any special features like wilds or scatters.
  3. Manage Your Bankroll Set a budget before you start playing and stick to it. Determine the bet size that allows you to enjoy the game longer while protecting your funds.
  4. Stay Disciplined Do not be tempted to chase losses. If you’re on a losing streak, take a break and return later or set a loss limit for the session.
  5. Use Bonuses Wisely Take advantage of casino bonuses and free spins that can extend your playtime. However, always read the terms and conditions for wagering requirements.
  6. Check for Jackpot Eligibility Ensure you meet the criteria to win a jackpot if you’re playing a progressive slot, as some slots require a specific bet size or playing pattern.
  7. Understand Volatility Know the game’s volatility. High volatility slots pay out less frequently but offer bigger wins, while low volatility slots pay out smaller amounts more often.
  8. Practice with Free Games Start with free slot games to get familiar with different types of slots without risking your money. It’s a great way to test strategies and get to grips with the gameplay before playing with your own cash.
  9. Keep an Eye on Special Features Slots with features like multipliers, free spins, and bonus rounds can provide chances of winning bigger payouts and add more excitement to the game.
  10. Play at Reputable Casinos Only play slots at trusted online casinos with a UKGC licence. That way, you can be certain the games are fair, and any winnings will be paid out.

Types of Online Slot Games Available in UK Casino Sites

Casino sites offer a diverse array of online slot games, appealing to a wide range of preferences and styles. These games can be classified based on their structure, gameplay features, and mechanics. Whether you prefer simple, traditional layouts or modern, feature-rich designs, there is a type of slot game to suit every player’s taste.

Slot types vary from basic classic slots that mimic traditional fruit machines, to video slots which offer sophisticated graphics and exciting bonus features. Additionally, Megaways slots and multi-payline slots provide numerous ways to win, while 3D Slots and VR slots bring immersive visual experiences. Here’s an overview of the types of slots you can play online:

  1. Classic Slots Traditional slot design, usually with 3 reels and a single payline.
  2. Video Slots Feature-rich slots, usually with 5 reels and advanced graphics.
  3. Progressive Jackpot Slots Slots with jackpots that increase with every wager.
  4. Mobile Slots Slots optimised for mobile devices.
  5. Megaways Slots Slots with variable reel modifiers that offer thousands of ways to win.
  6. Megapays Slots Megaways slots with a 4-tiered progressive jackpot system.[7]
  7. Multi-Payline Slots Slots with multiple betting lines and many chances to win.
  8. 3D Slots Slots featuring three-dimensional graphics and animations.
  9. VR Slots Virtual reality slots that provide an immersive experience.
  10. Interactive Slots Slots with interactive bonus games or choices.
  11. Penny Slots Slots that can be played for as little as one penny per spin.
  12. Multiplier Slots Slots that offer multipliers that increase winnings.
  13. Bonus Round Slots Online slots with bonus games.
  14. Free Spin Slots Slots that feature free spins as a bonus feature.
  15. Cluster Pays Slots Slots where wins are formed by symbol clusters.
  16. Branded Slots Slots based on popular movies, TV shows, or celebrities.
  17. Win Both Ways Slots Slots that payout from left to right and right to left.
  18. Cascading Reels Slots Slots where winning symbols are replaced by new ones.
  19. I-Slots Interactive slots with evolving storylines based on player choices.

From this extensive list, my personal favourites are progressive jackpot slots and Megaways slots. The thrill of potentially hitting a huge jackpot playing progressive slots adds excitement to each spin. Meanwhile, Megaways slots, with their dynamic reel structures offering thousands of ways to win on every spin, keep the gameplay exhilarating and unpredictable.

In the following sections, we’ll look in detail at the most important types of slots.

Classic Slots

Classic slots are reminiscent of the original slot machines found in casinos and pubs, often called one-armed bandits. These games typically feature three reels and a straightforward design with limited paylines, making them easy to understand and play. They often feature old-school fruit machine symbols, such as bars, bells, lucky 7s, and fruit symbols, capturing the essence of traditional slot gaming.

While they may lack the elaborate animations and bonus features in more modern video slots, classic online slots are ideal for new players or experienced players seeking a more relaxed gaming session without overwhelming details. Their simplicity ensures that the focus remains on the fun of spinning and the excitement of potentially hitting winning combinations on the reels. Here are the most popular classic online slots:

Top Slots Payout % Slot Volatility Secure Casino Link
99.00 High Duelz
97.43 High 32Red
95.44 Medium Ladbrokes
95.06 High Grosvenor
95.75 High Casimba

Classic slot games hold a special place in the gaming world due to the nostalgic value they bring. They remind me of the early days of casino gaming, when pulling the lever was all the excitement you needed. Their straightforward mechanics and easy-to-understand paylines make them a timeless choice, ideal for those who appreciate simplicity over complexity in gameplay.

I believe the enduring charm of classic 3-reel slots lies in their simplicity and the rapid gameplay they offer. They may not boast the flashy bonuses and high-tech animations of modern video slots, but the classic variants provide simplified gaming that’s hard to match. While I prefer to play feature-rich, graphically advanced online slots, I also enjoy the retro gaming experience of playing a classic 3-reel slot from time to time.

Video Slots

Video slots represent a more advanced form of the classic slot game, enhancing gameplay with detailed graphics, animations, and sound effects. Unlike classic slot games, which typically feature three reels and simpler designs, video slots usually boast five or more reels and multiple paylines, sometimes hundreds, offering a more dynamic playing experience.

The key difference lies in the features they offer. Video slots often include bonus rounds, free spins, and multipliers, adding extra layers of excitement not typically found in classic games. These games are themed around a wide array of subjects, from fantasy to popular films, making them visually engaging and more immersive. Here are the most popular video slots:

Top Slots Payout % Slot Volatility Secure Casino Link
95.97 High Fantastic Spins
96.09 Low Bally Casino
99.32 Medium Mr. Vegas
94.86 High Casimba
95.92 Medium NetBet

In my opinion, video slots offer an immersive experience that beats classic 3-reel slots. The rich visuals and soundtracks, combined with complex narratives and themes, make each session thrilling. Their extensive variety of features, like multi-level bonus rounds and expansive paylines, ensures that no two gaming experiences are the same, providing endless entertainment and engagement.

I have played countless video slots and I particularly enjoy the depth they bring to the table. The intricacies of their storylines and engaging bonus features add extra excitement to the gameplay. With so many themes and hundreds of game variations to choose from, there is a video slot to suit every taste, no matter how niche.

Progressive Jackpot Slots

When we rate the best online slots, we pay special attention to progressive jackpot slots. Progressive slots are much-loved by online slot players, and you will find them at all reliable online casinos. But the huge jackpot prizes have a cost – the base games usually give out worse payouts than their counterparts.

Any jackpot game aims at attracting players with lucrative rewards. A portion of every wager goes to the jackpot pot, helping them build to staggering amounts. That’s why progressive jackpot games are the best slots to play if you want the chance to win big money. We have to use different criteria when we rank the best jackpot slots. You can see the current top 3 list for 2025 below.

Mega Moolah by Microgaming

🎰 Largest Paid Jackpot £16.8 million[8]
⏱️ Average Period around 122 days
💰 Average Payout £2.1 million
💸 Average Increase £12,300/day
🏆 Recommended Casino Casimba

Mega Moolah is a legendary progressive jackpot slot and one of my personal favourites from the list of the top 10 online slots. It holds the Guinness World Record[9][10] for the biggest jackpot payout in an online slot. When the bonus game is randomly triggered, you can spin the wheel, which holds the four different jackpot prizes.

The most appealing of these prizes are the Major Jackpot, which starts at £10,000, and the Mega Jackpot, which is guaranteed to be at least £1 million. The Mega Jackpot regularly builds to several million pounds.

Mega Fortune by NetEnt

🎰 Largest Paid Jackpot £15,143,600[11]
⏱️ Average Period around 77 days
💰 Average Payout £3.6 million
💸 Average Increase £11,500/day
🏆 Recommended Casino Duelz

Mega Fortune by NetEnt is one of the best online casino slots for big payouts. It previously held the Guinness World Record when it paid a jackpot of €17.8 million in 2013.[11] Triggering the bonus game offers the chance to the Rapid, Major, or Mega Jackpot. The Mega Jackpot starts at £150,000 and frequently hits millions.

I particularly like the luxury theme of this progressive slot. With symbols including Rolex watches, speedboats, and champagne bottles, it gives you a glimpse of the rewards you could reap if you are one of the few lucky players to hit the Mega Jackpot.

Beach Life by Playtech

🎰 Biggest Jackpot £4.4 million
⏱️ Average Period around 165 days
💰 Average Payout £2.07 million
💸 Average Increase £10,900/day
🏆 Recommended Casino Coral

Beach Life is a feel-good Playtech slot filled with summertime vibes. It is the record holder among Playtech’s progressive jackpot slots. The game paid its biggest prize of £4.4 million in 2012. Its second-highest payout of £3.7 million came in 2015.

You must line up 5 sunshine wild symbols on the 20th payline to win the jackpot. The chance of scooping millions is undoubtedly what makes this slot a player favourite. For me, the bright colours and cheerful theme are a big part of this game’s appeal.

Mobile Slots

All reputable online casinos in the UK offer the option to play slots on your phone or tablet. So, you can play online slot machines wherever and whenever you like. Playing on the go makes it more convenient than ever to enjoy your favourite games. Software developers invest significantly in optimising their games for mobile play. So, the top slot games are fully compatible with mobile casinos.

Mobile slots have the same features, payout percentages, and volatility as their desktop versions. Below, we have listed the top-rated online slots to play on mobile devices. We have also included the best casino apps to play these top slots on the go.

Slot for Mobile Compatibility Slot Software Best Casino Secure Link
Cleopatra IGT iOS, Android NetBet Play on Mobile
Gonzo’s Quest NetEnt iOS, Android Fantastic Spins Play on Mobile
Game of Thrones Microgaming iOS, Android Casimba Play on Mobile
Mega Moolah Microgaming iOS, Android Casimba Play on Mobile
Jack and the Beanstalk NetEnt iOS, Android The Grand Ivy Play on Mobile

Megaways Slots

Megaways slots are a revolutionary type of slot game designed by Big Time Gaming. They feature a dynamic reel modifier that changes the number of symbols on each reel during every spin. This variability dramatically increases the ways to win, typically offering up to 117,649 paylines. The random reel modifier mechanism ensures that every spin is unpredictable and highly engaging.

Megaways slots are incredibly popular among players. The potentially huge number of ways to win makes every spin exciting. Additionally, these slots often include rewarding features like cascading reels, free spins, and increasing multipliers, further boosting their appeal. Here are the top-rated Megaways slots:

Top Slots Payout % Slot Volatility Secure Casino Link
96.55 High Grosvenor
96.23 High Ladbrokes
96.10 Medium Coral
96.00 Medium Duelz
96.00 High Casimba

Megaways slots rank among my favourite slot types due to their innovative mechanics that transform each spin into an exciting possibility. The unpredictability of the changing reels and the sheer variety of ways to win keep the thrill alive in every gaming session. Their ability to provide fun features with massive win potential makes them a top pick for any slot player.

Bonanza, one of the first Megaways slot games,[13] instantly struck a chord with players with its innovative gameplay. Since then, many other leading software providers have developed games using the Megaways mechanic. Many of the best Megaways slots are new variations of player favourite 5-reel video slots. In fact, Rainbow Riches Megaways and Fishin’ Frenzy Megaways are among my favourite slots to play online.

Online Slots by Theme

The theme of a slot game plays a key role in attracting players by creating an immersive experience that resonates with their interests. Themes range from ancient civilisations and deep-space explorations to classic movies and fantasy adventures. This diversity ensures that every player can find a game that matches their interests and enhances their gaming enjoyment.

Many players seek out slots that match their tastes and interests, making the theme a significant factor in their game choice. A well-executed theme can transform a simple slot game into a compelling world with matching symbols, music, and bonus features. Engaging themes can transform routine gameplay into an online adventure, making every spin a part of a larger story. Here are some of the most common slot themes:

  • Adventure Slots
  • Animal Slots
  • Anime Slots
  • Asian Slots
  • Cartoon Slots
  • Christmas Slots
  • Dragon Slots
  • Egypt Slots
  • Fairytale Slots
  • Fishing Slots
  • Greek Mythology Slots
  • Irish Slots
  • Magic Slots
  • Movie Slots
  • Music Slots
  • Norse Mythology Slots
  • Pirate Slots
  • Sports Slots
  • TV Slots
  • Vampire Slots

Ancient Egypt, Greek mythology, and animals are among the most popular slot themes, and you’ll find many online slots inspired by these topics. Personally, I’m particularly fond of Irish-themed slots. Games like 9 Pots of Gold and Rainbow Riches have a whimsical charm, with fun folklore and engaging gameplay filled with leprechauns and hidden treasures at the end of the rainbow.

Online Slots by Software

You will find games from various online slot providers at casino sites. More than 100 software developers create slots for online casinos. With so much competition in the industry, these slot developers constantly push the boundaries to stand out from the crowd. The software provider behind a slot impacts the graphical quality, bonus features, and overall playing experience.

Playing slots from the best developers means you can expect top-notch graphical quality and first-class music and sound effects. You can also expect engaging gameplay and exciting and imaginative bonus features. Below, we have listed developers that create the best online slots in the UK:

Some of the biggest developers of online slot games provide a wide range of online casino games, including table and card games and live dealer games. Whereas others focus only on digital slot machines. Each developer has its own highlights. NetEnt, for example, is renowned for creating online slots with the highest payouts and innovative features. In comparison, Playtech shines with a rich selection of branded slots and jackpot slots.

The software developers listed above are safe and certified. They are licensed by the UKGC, and their games are independently tested. So, you can trust that you have a fair chance of winning when playing their slots. You will find games from these renowned software providers at many casino sites, including the top 20 online casinos in the UK.

Recommended Payment Methods for Slot Casinos

If you want to play the best slots online, you must first deposit money into your online casino account. Reliable slot sites accept a variety of secure payment methods. All UK online casinos accept debit cards. Other options include e-wallets, prepaid cards, bank transfers, and mobile payment services. Here are the top-rated online casino payment methods:

When choosing which payment method to use, you should remember that not all options support withdrawals. This is often the case with prepaid cards and mobile payment services. It is also worth noting that deposit limits can vary between payment methods.

Of the many payment methods available for online casino payments, I recommend PayPal. The e-wallet provides enhanced security and privacy. Plus, PayPal is one of the best payment methods for fast withdrawals. As an iPhone user, I also frequently make online casino deposits with Apple Pay. It provides a secure and convenient way to deposit on the go.

More Online Slot Guides

Casino Player Questions About Slots

Here we will answer the most common questions that casino players have when it comes to online slots.

Which online slots are the best?

Different players consider different factors, but most commonly you need to keep track of the RTP rate and the slot volatility. Most players also have a preferred software studio. Other factors to keep in mind include theme, graphics, and bonus features. We consider this and much more when we pick our top 10 slots to play online.

What is the best online casino to play slots?

The best online casino for playing slots should feature a diverse selection of slot games, generous bonuses, robust security measures, reliable customer support, and convenient payments. Based on extensive reviews assessing all important categories, we created a list of the best slot casinos.

How do you pick a winning slot machine?

There are never any guarantees that you will win when playing a slot machine. However, you can improve your odds by playing smart. Check all the available data and take the time to pick just the right slot. You can refer to our slot tips for more information.

Can you make money playing online slots?

It comes down to luck, but having a fair chance to win is guaranteed – if you play at a safe casino. If the online casino has a valid licence from the UKGC, then slot games are independently audited for fairness, and the casino will pay out any winnings you make.

Are online slots rigged?

Online slots developed by certified software providers cannot be rigged. They are subject to regular audits by third-party testing agencies. The same goes for slots that are featured at a certified online casino. So, to stay safe, choose licensed casinos and established slot developers like Microgaming, NetEnt, Playtech and IGT, so you have a guarantee the slot isn't fixed.

External Sources Used in the Making of This Article

Our article about the best slot games and sites is based on detailed research. We have conducted many slot reviews and consulted various trusted international sources to ensure that we provide accurate and reliable information. Below, you can see some of the reputable resources we consulted to create this guide:

  1. Gambling Commission (2024) ‘Full business register’, Gambling Commission. Available at: https://www.gamblingcommission.gov.uk/public-register/businesses/full (Accessed 23.04.2024)
  2. GamCare (2022) ‘Signs of Gambling Harm’, GamCare. Available at: https://www.gamcare.org.uk/understanding-your-gambling/signs-of-gambling-harm/ (Accessed 23.04.2024)
  3. Gambling Commission (2021) ‘Prohibiting auto-play functionality for online slots’, Gambling Commission. Available at: https://www.gamblingcommission.gov.uk/consultation-response/online-games-design-and-reverse-withdrawals/summary-of-responses-prohibiting-auto-play-functionality-for-online-slots (Accessed 23.04.2024)
  4. Gambling Commission (2021) ‘Gambling Commission announces package of changes which make online games safer by design’, Gambling Commission. Available at: https://www.gamblingcommission.gov.uk/news/article/gambling-commission-announces-package-of-changes-which-make-online-games (Accessed 23.04.2024)
  5. The Haynes Clinic (2021) ‘Why do people get addicted to slot machines?’, The Haynes Clinic. Available at: https://thehaynesclinic.com/gambling-addiction/why-do-people-get-addicted-to-slot-machines/ (Accessed 23.04.2024)
  6. Department for Digital, Culture, Media & Sport (2024) ‘Government response to consultation on proposals for the introduction of a maximum stake limit for online slots games in Great Britain’, GOV.UK. Available at: https://www.gov.uk/government/consultations/a-maximum-stake-limit-for-online-slots-games-in-great-britain/outcome/government-response-to-consultation-on-proposals-for-the-introduction-of-a-maximum-stake-limit-for-online-slots-games-in-great-britain (Accessed 23.04.2024)
  7. PRNewswire (2022) ‘IGT Money Mania Wide Area Progressive Driving Jackpot Excitement in Commercial Gaming Jurisdictions ‘, IGT. Available at: https://ir.igt.com/news/news-details/2022/IGT-Money-Mania-Wide-Area-Progressive-Driving-Jackpot-Excitement-in-Commercial-Gaming-Jurisdictions/default.aspx (Accessed 23.04.2024)

  8. Microgaming (2021) ‘Absolootly massive! Microgaming’s Mega Moolah hit for a record-breaking €19.4 million’, Microgaming. Available at: https://microgaming.co.uk/post/Microgamings-Mega-Moolah-hit-for-a-record-breaking-19-4-million (Accessed 23.04.2024)
  9. Guinness World Records (2015) ‘Largest jackpot payout in an online slot machine game’, Guinness World Records. Available at: https://www.guinnessworldrecords.com/world-records/largest-jackpot-payout-in-an-online-slot-machine-game (Accessed 23.04.2024)
  10. Microgaming (2015) ‘Microgaming enters GUINNESS WORLD RECORDS for the largest jackpot payout in an online slot machine game!’, Microgaming. Available at: https://www.microgaming.co.uk/microgaming-enters-guinness-world-records (Accessed 23.04.2024)
  11. NetEnt (2013) ‘New world record – Net Entertainments slot game Mega Fortune™ pays out 17.8 MEUR’, NetEnt. Available at: https://www.netent.com/en/new-world-record-net-entertainments-slot-game-mega-fortune-pays-out-17-8-meur/ (Accessed 23.04.2024)
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