Best Online Slots UK - New Slot Games Reviews and 100 Spin Tests

Top 15 Most Popular UK Slots this Month

This is the most up-to-date list of popular slots in the UK. The results are produced and sourced from igamingtracker, which calculates the content share by counting all the positions the game occupies as a % of total game positions at online casinos. 

We weight the score of each position. For example, a game at the top of the page has a higher score than a game at the bottom. The size of the game thumbnail, the page type (e.g., landing page, ‘All Games’ page, ‘Jackpots’ page etc.).

1. Starburst (NetEnt)

• 5 Reels x 3 Rows Board
• 10 x Paylines
• Wins Both Ways
• Expanding Wilds
• Respins
• Retriggers
• Volatility - Medium

NetEnt has been a frontrunner in the most popular slots for a long time, and Starburst is one of their most impressive creations. Its fast-paced, thrilling gameplay provides an intense yet enjoyable experience with every spin. More so than most similar games, Starburst pays out wins while providing an incredibly vibrant atmosphere with lights and colours swirling around the screen as you spin. If you're looking for something truly unique and exciting despite its age, Starburst from NetEnt could be exactly what you are looking for! Check out our full Starburst slot review to see all the features that make this game so great.

2. Big Bass Bonanza (Pragmatic Play)

• 5 Reels x 3 Rows Board
• 10 x Paylines
• Free Spins
• Multipliers
• Retriggers
• Volatility - HIGH

Pragmatic Play's most popular slot, Big Bass Bonanza, is a great way to try your luck at some reel-spinning casino action. With its realistic fishing-themed graphics and flair for the outdoors, this slot has it all! The 5x3 grid gives you plenty of chances to land big wins too. As soon as you hit spin, the screen is filled with a high-quality soundtrack transforming you into an outdoor fisherman coming back from his latest home run. It’s not hard to see why Big Bass Bonanza Slot is Pragmatic Play's most popular slot. If you want to learn more about this slot's unique features and how exactly this title could become your most rewarding gambling experience yet, read our full Big Bass Bonanza slot review!

3. Big Bass Splash (Pragmatic Play)

• 5 Reels x 3 Rows Board
• 10 x Paylines
• Free Spins
• Multipliers
• Retriggers
• Volatility - HIGH

Pragmatic Play, one of the most popular gaming providers in the world, presents Big Bass Splash slot - the latest release in their beloved series. Go on an exciting fishing adventure as you match symbols to land cool prizes. With an easy-to-navigate setup and plenty of features available, this game packs a punch with its impeccable graphics and thrilling gameplay. Plus, its simple concept will help familiarize even the most inexperienced players in no time! From underwater tunnels to realistic water sounds, dive deep into this big bass adventure with us. Read our full Big Bass Splash slot review now to learn more about this classic yet striking slot game!

4. Gold Blitz (Fortune Factory)

• 6 Reels x 4 Rows Board
• 4096 x Paylines
• Free Spins
• Cash Collectors
• Retriggers
• Volatility - HIGH

Introducing Gold Blitz by Fortune Factory: A Unique Slot with Thrilling Features! This classic-looking game features shiny visuals and intriguing music, with a grid of 6 reels and 4 rows per reel, offering 4,096 ways to win. With high-volatility and the Gold Blitz feature, Collect feature, Free Spins, and more, this game promises big wins. Check out our Gold Blitz slot review for more exciting details.

5. Book of Dead (Play'n Go)

• 5 Reels x 3 Rows Board
• 10 x Paylines
• Wild/Scatters
• Freespins
• Retriggers
• Volatility - HIGH

Step into the fantastical Egyptian world of Play'n Go's most popular slot, Book of Dead. Featuring a captivating adventure from intrepid explorer Rich Wilde as he dives deep into a forgotten pyramid, Book of Dead will take you on a magical journey with ancient symbols and exciting features. With an RTP of 96.21% and 10 play lines, players are sure to reap some serious rewards! If you're feeling daring, why not try it out for yourself? Check out the full Book of Dead slot review now to find out more about this extraordinary slot game and start your journey towards untold treasures today!

6. Fishin Frenzy - The Even Bigger Catch (Blueprint Gaming)

7. Fishin Frenzy - The Big Catch (Blueprint Gaming)

• 5 Reels x 3 Rows Board
• 10 x Paylines
• Scatters
• Free Spins
• Retriggers
• Volatility - HIGH

If you’re looking for the most popular slots game, look no further than Fishin Frenzy - The Big Catch! This exciting real-money game from Blueprint Gaming offers a variety of bonus features and super fun gameplay. So join in on the frenzy for yourself and catch your share of big wins today. With easy-to-understand betting options and potential payouts, it’s no wonder why this slot game is loved by so many. Don't miss out; give Fishin Frenzy - The Big Catch a try now by reading our full review.

8. Rainbow Riches (Barcrest, WMS and Light & Wonder)

• 5 Reels x 3 Rows Board
• 20 x Paylines
• Wilds, Bonus, Scatters
• Free Spins
• Retriggers
• Volatility - MEDIUM

Rainbow Riches from Barcrest, WMS, and Light & Wonder is a truly classic slot game known as one of the most popular slots around. From its interesting theme to its reachable jackpots and thrilling bonus rounds, Rainbow Riches has all the features players expect from top-class games. With an easily understandable paytable and straightforward gameplay, this slot will suit everybody's experience level.  You can even play at Rainbow Riches Casino! Read our full Rainbow Riches slot review to find out why it is one of the most beloved slot games in the industry.

9. Eye of Horus (Blueprint & Merkur)

• 5 Reels x 3 Rows Board
• 10 x Paylines
• Wilds and Scatters
• Free Spins
• Volatility - MEDIUM

Eye of Horus from Blueprint Gaming and Merkur Gaming is an Egyptian-themed adventure with thrilling Bonus Games, and Free Spins offering you powerful special symbols which can reward you with great prizes. The eye of Horus itself acts as the wild symbol, substituting for any other symbol to help form winning combinations, but its most significant feature is activating free games when three or more appear in a single spin. Stunning graphics combined with smooth and captivating gameplay will keep you hooked to your screens. Join us as we review this classic title! Be sure to read our full Eye of Horus slot review to discover all the advantages and get hints on maximizing your winnings!

10. Fluffy Favourites (Eyecon)

• 5 Reels x 3 Rows Board
• 25 x Paylines
• Scatters
• Free Spins
• Instant Wins
• Retriggers
• Volatility - MEDIUM

Fluffy Favourites from Eyecon is one of the most popular slots games around and currently sits in #5 position in the charts. Its much-loved theme provides a unique fantasy setting based on adorable animal characters, including giraffes, monkeys and pandas. With fantastic gameplay features and plenty of opportunities to win big rewards, players will be hopping with delight in no time. It also comes equipped with free spins, wilds and multipliers, which offer enhancing bonuses so players can get even more out of their gaming experience. If you're looking for a fantastic excursion – look no further than Fluffy Favourites! Read our full Fluffy Favourite slot review now to see if it's right for you!

11. 9 Pots of Gold

• 5 Reels x 3 Rows Board
• 20 Paylines
• Scatters
• Free Spins
• Multipliers
• Cash Pot Collectors

9 Pots of Gold Slot by Microgaming and Gameburger Studios: Inspired by Irish folklore, this slot offers refined graphics, authentic music, and exciting features. With a simple gameboard, solid RTP, medium volatility, pot symbols and free spins, this game promises many chances to win big. Check out our in-depth review on 9 Pots of Gold slot.

12. Bonanza (Big Time Gaming)

• 6 Reels x 7 Rows Board
• 117649 Megaways Paylines
• Scatters
• Free Spins
• Multipliers
• Volatility - MEDIUM

Bonanza from Big Time Gaming is an iconic slot that millions of gamers worldwide enjoy. It's one of the most popular slots in online casino gaming! As one of the first Megaways slots, it has 6 reels, which can expand from 2 to 7 symbols high, giving a potential 117,649 ways to win. If you've been looking for a thrilling and action-filled gaming experience with plenty of volatility, then Bonanza could be just the game for you. Why not look closer and read our full Bonanza Megaways slot review to discover all its features?

13. Cleopatra (IGT)

• 5 Reels x 3 Rows Board
• 1, 5, 9, 15 or 20 x Paylines
• Wilds and Scatters
• Free Spins
• Multipliers
• Volatility - HIGH

Since its release more than 10 years ago, Cleopatra from International Game Technology (IGT) remains one of the most popular slots. Rich in both graphics and history, this Vegas-style slot takes you back to Ancient Egypt to follow the life of Queen Cleopatra. In charge of a powerful kingdom and well known for her romance with Julius Caesar, she was an iconic ruler and more recently, the subject of an exciting IGT game. Play this original version today and experience one of the most classic and successful casino games around. To find out more, read our full review of Cleopatra by IGT now!

14. Sweet Bonanza (Pragmatic Play)

• 6 Reels x 5 Rows Board
• Cluster Pays™ (8 anywhere)
• Scatters
• Free Spins
• Multipliers
• Volatility - MEDIUM

Sweet Bonanza from Pragmatic Play is one of the most popular slots games available today. It features a unique reel setup with 6 reels and 30 symbols per spin on the 'Cluster-Pays' mechanic. The game combines classic features such as cascading wins and multipliers with innovative extras in the free spins round. With an RTP of up to 96%, this sweet slot will bring plenty of fun into your life! Want to learn more? Check out our full review of Sweet Bonanza slot now - you won’t regret it!

15. Release the Kraken 2

• 4 Reels x 5 Rows Board
• 20 x Paylines
• Scatters
• Free Spins
• Wilds
• Volatility - HIGH

Release the Kraken 2 Slot: A Fun Game with Unique Features and High RTP of 96.50%! This slot game has a standard 5-reel, 20-payline matrix, but the free spins feature offers 40 paylines - a rare find in online slots. With a fun theme and simple gameplay, players can enjoy it for a long time. The game offers low and high bets, a decent maximum winning cap, and exciting random features. Read our review of Release the Kraken 2 slot on OLBG.

Best Payout Slots (Slots with the biggest RTPs)

Knowing where to start your search for the best payout slots can be challenging with so many slot games available at online casinos. In this article, we will look closer at the best-paying slot games currently available, discussing their features and what sets them apart from the rest.

Best Paying Slot Games UK by Provider

If you are searching for the best payout slots in the UK, one of the most valuable strategies is to look at the slot providers themselves. Focusing on providers with a track record of developing high-payout slot games will narrow your search.

Some of the top slot providers of best payout slots in the UK include Pragmatic Play, NetEnt, Microgaming, and RedTiger. Another way to find the best payout slots is to read Slot game reviews from other players and industry experts, who can provide valuable insights into the best games available. Remember to also look at the game's RTP (return to player) rate and pick the greatest you can find.

Best RTP Slots

High RTP (Return to Player) slots are essential because they offer players theoretically the highest chances of losing a smaller amount of their session spend. RTP is set over billions of spins though, so bear this in mind, and long losing runs, even on high RTP slots are not unusual.

RTP is the percentage of the total wager amount the game pays back to players over a specific and unimaginably long period of spins. A high RTP of, say, 98% or more means that the slot game payout is programmed to return 98% of all stakes over that time. A 96% RTP slot sits lower as you would imagine - But no matter the RTP, in an ordinary session of even a few thousand spins, RTPs can be much higher and more frequently much lower, than the advertised theoretical figure.

The one thing you can be sure of is the longer you play the closer you will get to the advertised RTP number.

How to Find a Slot RTP

The good news is that RTP information for most slot games can be found on the provider's or casino's website. Players can find RTP statistics for specific games by clicking on the slot help or info sections. This information can help players make an informed decision on choosing higher rtp slots over lower ones.

What is Return to Player Percentage in Online Slots?

Return to player is the percentage of wagered money is return in winnings over time when playing slots on a casino app.

Long losing runs and good winning runs will over course be over a shorter period and will return lower and higher percentages will be useful in the short term, but once evened out over time, the RTP is an accurate view of how the slot is set up.

Quite simply, the higher the RTP, the higher the percentage of money wagered is returned in winning spins and bonuses.

How long is “time” in this case?

Well, there is actually no defined ‘time’ as it were, it certainly can’t be narrowed down to an exact number of spins, and of course, if it were a very tight timeline it would make it impossible to win on slots in the short term, which, of course, you certainly can.

The advice is simple, if you get ahead, regardless of the growth of your original bank, eventually you will lose in the long term, so stopping while you are ahead has never been more apt.

You will already have figured out that if you flip the percentage RTP, you will have the house edge.

So in this example where we are looking at an RTP of 98.9%, the house edge on this game is 1.1% which is generous in comparison to standard single zero roulette house edge of 2.70%

If you are playing any slot with an RTP of at least 97.3%, you are getting better odds than if you play Roulette.

The table at the head of this article has a list of the highest RTP slots by the provider and where you can play them. They all come under the 97.3%

When choosing a slot and best payout percentage, try to keep your choice to the recommended RTP level as outlined above or consider this handy guide:

You may find slots based around Films, TV series, Bands or Sporting Events. In many cases, these will be licensed by brands whereby the game creator/provider will have to pay to brand the slot game.

This is an underlying cost that will need to be covered and often you will not find these slots falling into the list of best payout online slots.

Indeed, in the list of 63 online slots we have here, there is not a single brand name included.

Types of Slots

Online slot games come in all shapes, sizes, styles, and types of slots. No doubt, if you are a regular slot player, you have your favourite types, but would be interested in taking a view of what other types of slot are like and how they work and to play them

Reel Style of Slots

Slots do not come solely in reel format these days. In days gone by when fruit machines would traditionally be a single win line with three reels, with a further two lines above and below in view, the permutations today are phenomenal.

You can indeed still find 3 reel slots, as well as 4, 5, 6, 7 and even more in some cases.

3 Reels

Playing a slot with 3 reels will provide the possibility of getting three matching symbols in a line. Often with 3 reel slots, the formation will be displayed as 3x3 - meaning three lines and three reels. Typically this will offer 5 winning lines - the three horizontal line plus the addition of the two diagonals left to right.

Again in most cases, 3 matching symbols will be required to gain a win although in some cases, premium symbols may only require two on a winning line

4 Reels

donuts from Big Time gaming is a classic example of a simple 4 reel slot

Plainly a 4 Reel slot now has a line of four reels adding additional symbols required to win, and possibly bigger multipliers for four in a row.

4 Reel slots are mostly described as 4x3. Thats 4 Reels - 3 Rows

Once the fourth reel is added, the potential pay lines increase, and depending on the setup of the slot, the previous five win lines become 10, 15, or even 20, with ever-more imaginative ways for four reel wins to be achieved

Five reels

Big Bass Bonanza is an example of a 5 reel slot

Again taking the 3-row format, you'll find five reel slots described as 5 x 3 - 5 reels and three rows.

Again, adding a further reel adds the potential of more win lines, although often they do not exceed 50 unless using an 'all-ways' or 'megaways' format.

Most often, 10 - 50 pay lines will be the outcome and mostly 25, although, using all-ways winning where symbols do not have to be tangibly linked, 243, 1024, and more can be achieved depending on the number of rows in the game if extending above three available. However, some slots may have 243, 1024, or even 16807 pay lines

6 Reels or More

6 reel slot and even more are available, this is 6 reel buffalo blitz from PlayTech

There are may 6 Reel slot games to play, offering 6 in a row winning options that can pay well. This does come at the expense of many below-stake wins for three in a row and can often mean a minimum of four free spins or scatter awards to trigger bonuses.

This also increases the number of potential pay lines and six reels are the most frequently used format for Megaways slots.

Paylines

• Reel Based Paylines Wins
• All Ways Payline Wins
• Cluster Pays™ Wins

In addition to the number of reels that can be found on a slot, there is also the consideration of the reel style and whether wins are achieved by lining up on adjacent reels, anywhere on consecutive reels, or falling into the category of Cluster Pay Slots

Let's start with traditional style reel-to-reel slots requiring adjacent symbols before moving into the more modern and complicated version

Reels-Based Paylines on Slots

Once upon a time, there would be only one win line on a slot game in the days of the old pokies and one-armed bandits. These days with the evolution of video slots and online slot games, the permutations are almost endless, with many slots, including the Big Time gaming licensed 'Megaways' mechanic, offering anything up to 117,649 ways to win.

This number of pay lines seems fantastic but with increased reels and rows and imaginative board creations, thousands of pay lines are achievable.

It should be noted that the number of pay lines make no difference to the likelihood of winning on a slot game. The chances of winning are determined by the return to player percentage (RTP) only.

Additional pay lines are only for the design and experience on the slot game and the entertainment value - it doesn't even determine a greater possible win amount on a single spin. So don't play multi-payline slots in the aim to win bigger or more frequently - it doesn't work that way.

Starburst from NetEnt has 10 paylines on a 5x3 board

All Ways Paylines

Often referred to as Megaways, all-ways payline slots are a newer form of online slot play, and in fact, Megaways is a licensable product, mechanic and name - The correct term to include all games using these paylines is All Ways

Quite simply, this means that symbols do not need to appear adjacently on the reels; rather, as long as the same symbol appears anywhere on each of the reels, you will have a winning line.

Should you have 2 or more same symbols on a reel, this equates to more winning line permutations; so for instance, if you had a 6-in-a-row win of a symbol, with the following quantities - 1-2-3-2-1, this would represent 12 winning lines

The easy way to understand this is to create a simple multiplication - 1x2x3x2x1=12

So how do Megaways Slots make 117649 possible winning lines?

With up to 7 symbols per reel and 6 reels on a game, the possible number of winning lines is an incredible 117649 and this is arrived at by multiplying the possible symbol appearances by each of the 6 reels. Thus, the permutation calculation is 7x7x7x7x7x7 = 117649

Cluster Pays™ Slots

Now we have covered traditional reel and row win lines, and then the all-ways winning line possibilities, we move into the newer slot mechanics of 'cluster pays™'. As the name suggests, a 'cluster' of symbols are required to trigger base game wins here.

The boards for these types of slots are often different in that rather than reels and rows, a board made up of sometimes hundreds of squares is played. Most often we will find a 6 x 5 board in this form of slot game, providing a drop of 30 symbols.

Within the 30 symbols, we could be looking for a cluster of 5 or more matching symbols for a win. The larger the cluster of symbols, the higher the stake multiplier applied to the win.

This can work in one of two ways

Adjacent Clusters

With adjacent clusters, a minimum number of symbols that are adjacently joined will gain the win. Here we use Sugar Rush from Pragmatic Play, which features a 7x7 playing board where a cluster of 5 adjacent symbols will trigger a win.

In the example image below, we can see the green stars and the Pink lollipop tops are both clustered in groups of more than 5, which would both pay wins

Anywhere Clusters

With anywhere clusters, we are looking at a minimum number of symbols falling anywhere on the board. They do not have to touch. In Gate of Olympus, a minimum of 8 matching symbols triggers a winning spin where the symbols disappear and are replaced for potential further wins with multipliers and more.

Let's take the Sweet Bonanza slot game from Pragmatic Play as an example here, being the most common board configuration

Volatility

The volatility of slot games is a measure of the winning style and frequency of a game, and can be a consideration for many players when selecting which slot they like to play.

Understanding volatility is also crucial for your slot gaming enjoyment. Some slots even allow you to choose the volatility level for your game.

• High Volatility = Fewer but bigger wins
• Medium Volatility = Average Wins, medium value
• Low Volatility = More frequent wins but at a lower level

Regardless of volatility, the RTP will almost always be the same.

High Volatility Slots

High volatility slots can be high risk and high reward. While high volatility slots will often pay fewer wins than lower volatility, the wins you receive are usually of a bigger value. This means that high volatility slots can lead to quick big wins; however, it is important to remember that high volatility also implies long and expensive losing streaks. If you are looking for an exciting gambling experience to win high stakes, high-volatility slots may be the right choice. Just remember to use caution and gamble responsibly.

Example of High Volatility Slots

• Book of Dead (Play'n Go)
• Big Bass Bonanza (Pragmatic Play)

Medium Volatility Slots

Medium volatility slots are a great option for players wanting to experience some thrills without risking too much. While these slots may not offer huge payouts like their high volatility counterparts, they do provide more consistent wins and average prizes - perfect mediums between large rewards and low risk. medium volatility slots make it easier to manage playing funds due to the absence of long-lasting losing streaks. On the other hand, players can still make good wins occasionally, providing them with enough motivation to keep playing. If you want to play slots on a budget and with less risk, medium volatility slots could be just the thing for you!

Low Volatility Slots

Low volatility slots are ideal for players who are looking to experience frequent winning spins and small but steady wins. By the same token, they feature the same chance of losing, so are no more sure than high volatility, but it may take longer to get further into the red. Unlike high-volatility slots that feature big wins, low-volatility slots have smaller payouts more frequently, with spin values typically ranging from 0.1x up to 1x. While low-volatility slots don't typically give out huge jackpots (as is the case with high-volatility slots), they also offer far fewer 'dead' spins between wins - meaning more continuous fun and bonus features. If you're an occasional casino player, low-volatility slots offer a great way to keep up your enjoyment.

Extreme Volatility Slots

Extreme volatility slots are a fast-growing area of slot play and those considering playing them should proceed very cautiously. It’s important to understand that big losses can occur swiftly and dramatically; it would not be unusual to spin thirty or forty times without luck and lose your balance in the blink of an eye. Extreme volatility slots often tout ‘unlimited win potential’, as well as incredible maximum wins like 50,000x, but it’s worth recalling that these figures are theoretical - actual achievements of such wins being extremely uncommon in real-world play. Ultimately, be aware that playing extreme volatility slots is an extreme action itself, and risks should be considered before taking the plunge.

Online Slot Features

One of the biggest attractions in selecting an online slot game is the features included in the game, on the reels and the symbols. Personally, this is the deciding factor when I choose the new slots I want to try.

Base Game Wins

When playing online slot games, base game wins refer to a win on each spin without triggering a feature or bonus round. Unfortunately, base game wins are usually low and can be as little as 0.1x your stake, meaning the spin is actually still a losing spin in terms of your balance. E.G You may be spinning at £1 a spin, but a 0.1x win would return just £0.10 meaning a 90p loss on the individual spin.  It's possible for base game wins to land some higher value wins occasionally but these are generally far and few between, meaning that players must rely on bonuses like free spins or feature rounds in order to secure larger wins. This is why it's important to read through the game's rules and information before playing, so you know what you can expect from base game wins.

Low-Value Symbols

Low-value symbols are those items in online slot games that typically don't pay out great odds. These symbols may be represented by low-number card symbols, like 9, 10, J, Q, K, and A, or can take the form of low-value items like more basic graphics or less colourful.

Low-value symbols tend to appear frequently on the reels, giving players many opportunities to accumulate low-paying combinations. Although low values symbols usually don't pay out great amounts, they can still help build a half-decent win if full-screen or full-row wins are achieved. To understand low-value symbols, players should keep an eye on paytables that display the range of prizes associated with combinations of low-value symbols.

Low value symbols on Fishin Frenzy are the card based numbers and letters, with imagery for the premium symbols

High-Value Symbols

High-value symbols provide the potential for larger base game wins and free spins wins when playing online slot games. Symbols vary depending on the game and can range from high-definition graphics to enhanced versions of low-value symbols. Often base game wins of combinations of these premium symbols will pay a minimum of 1x your spin-stake when landing in the required combinations.

Special Symbols

Special symbols in online slot games can be a gamer's best friend. These symbols provide features that can help increase your chances of success - from wilds and scatters to multipliers and free spins. Wilds are special symbols that help to create winning combinations by replacing other symbols on the reels. Scatters, meanwhile, will trigger bonus games or free spins depending on how many you land on the reels. Multipliers will multiply the total win of a spin, while free spins give the chance to get extra wins without using up any more of your bankroll. Special symbols truly make all the difference when it comes to enjoying a slot game, and understanding their powers could help you gain real success.

Free Spins Symbols

Free spins are a great way to trigger chances of winning larger prizes than base game wins when playing online slot games. To be eligible for free spins, players must look out for free spin symbols which appear randomly during gameplay. These free spin symbols can come in a range of forms, often related to the theme of the game, and they are great rewards that offer free occasions to win a payout potentially. Most slot games also have special features like bonuses or mini-games, which provide opportunities to boost your winnings or even trigger free spins. These features will vary depending on the game.

Scatter Symbols

Slot scatter symbols are highly desirable symbols that can give players a range of rewards. These scatter symbols may consist of various images, and multiple scatter symbols can trigger special slot features. Depending on the game, scatter symbols might activate free spins, multipliers or mini-games like pick-a-prize where players can win real credits. Even if you don't land the scatter symbol combination needed to trigger generous extras, it could still be advantageous: scatter symbols typically reward players with wins even if they don't appear on active pay lines. Whether you're just starting out or have been playing for some time now, understanding the power of scatter symbols is sure to give a much-needed boost in your slot gaming endeavours!

Bonus

When it comes to playing online slot games, bonus symbols and features are your friends! Bonus symbols are special symbols or combinations of symbols that trigger bonus features. These bonus features usually offer bonus spins or bonus cash when activated, offering even more opportunities to win. The variety of bonus features can dramatically enhance your gaming experience, from bonus mini-games contained within the slots to bonus multipliers, bonus rounds and jackpots. So keep an eye out for bonus symbols and features when you're playing online slot games – you could find yourself with much bigger wins than expected!

Wilds

Wilds are a popular and powerful feature of online slot games that can help you win big. Wild symbols function as substitute symbols, allowing players to complete winning combinations. Wilds come in additional forms, such as Sticky Wilds, Walking Wilds, Expanding Wilds and Stacked Wild symbols. Sticky Wilds remain on the reel while the other reels spin and Walking Wilds move horizontally across each reel until they drop off the left or right side of the screen. Expanding Wilds can expand typically vertically but potentially in any direction to cover their respective reels and rows when they form part of a winning combination and Stacked Wilds takes up an entire reel, becoming several Wild symbols piled on top of each other, often combined with multipliers - adding even more excitement to your gameplay! 

Multipliers

Multiplier symbols and features are game components that players may encounter when playing online slot games. Multiplier symbols allow players to multiply their winnings by a predetermined multiplier value of anywhere between 2x to 500x, depending on the size of the multiplier symbol. 

Additionally, some multiplier symbols may require you to land a certain amount of symbols on one spin to qualify for a multiplier bonus. Be sure to read the game's layout and instructions carefully before you begin playing to optimize the potential for multipliers with each spin.

15 Best Slots Providers

There are almost countless slot game providers. These providers are studios that develop, invent and release new slot games and 'provide' them for use in online casinos.

It is important to remember that these providers own and operate the games and not the casinos themselves, who 'rent' the slot to be available to their customers.

Imagine the old pub fruit machine scenario, where the establishment doesn't own the machine but provides a position for it within its premises and gets a commission for the amount of profit it generates from its customers. The fruit machine provider retains ownership of the machine and the greater amount of the profit in most cases. Effectively renting out a portion of the profits.

Let's run through the biggest, best and most popular slot providers. You can find a link in each provider for a dedicated page for more information about them, the slots they create and which casinos feature them

1. Pragmatic Play Slots

Pragmatic Play is an award-winning developer of innovative and immersive online slots. Their attention to detail, combined with beautiful visuals and immersive soundtracks, has resulted in a huge portfolio of truly unique games. From the classic 3-reel fruit machines to the latest 5-reel video slots featuring adventure-packed storylines, there is something for everyone at Pragmatic Play. Every game has been optimised for both desktop and mobile devices, so you can spin from wherever you go. If you're looking for an unforgettable online slots experience, then look no further than Pragmatic Play.

2. Play n Go Slots

Play'n Go slots are a great way to experience all the thrills of casino gaming without ever having to leave the comfort of your own home! Play'n Go slots feature an excellent variety of distinctive games, each with its own unique theme and gameplay. Play'n Go also offers different kinds of bonus features and additional rewards, making it easy to entertain yourself for hours on end. With Play'n Go slots, everyone from novice players to experienced veterans can enjoy a unique playing experience with their unique features and rewarding bonus opportunities. Play'n Go's commitment to providing an engaging playing experience makes it one of the premier slot machine suppliers today.

3. NetEnt Slots

NetEnt slots are some of the most beloved online casino experiences around. NetEnt is known for its creative and innovative approach to gameplay and theme, with its slots standing out from the crowd with their high-quality graphics, immersive storylines, and cinematic soundtracks. Each NetEnt slot offers a unique adventure and chance to win big jackpots, meaning that one spin is all it takes to become an instant winner. NetEnt slots have been praised for pushing gaming boundaries in terms of both entertainment value and prize potential, and they continue to impress with more exciting releases every month. If you're looking for an entertaining casino experience, NetEnt slots should definitely be at the top of your list.

4. Red Tiger Slots

Red Tiger Slots are the quintessential online gaming experience. Red Tiger, with their expansive and vibrant library of imaginative and engaging games, guarantees to take you on a journey like no other. Red Tiger slots feature HD graphics, immersive sounds, detailed symbols and generous bonus features. Red Tiger provides a unique gaming experience with its innovative tools, wilds, multipliers, rolling reels and beautiful themes that will feed your imagination. Red Tiger lets you choose from several levels of bet amounts to suit your style of playing or become involved in Red Tiger’s jackpot slots for an opportunity for a bigger win. Red Tiger gives everybody the freedom to unleash his or her inner adventurer; so go ahead and try Red Tiger Slots today!

5. ThunderKick Slots

Thunderkick Slots offer a unique experience that any slot gamer is sure to enjoy. Thunderkick is an experienced independent game developer who focuses on creating innovative slots. Thunderkick slots provide exciting themes, intuitive design and experiences for players of all levels, allowing for hours of fun entertainment. Thunderkick make sure your gaming experience is as seamless and enjoyable as possible; combined with their creative artwork and funky soundtracks, Thunderkick Slots provide an immersive adventure from start to finish. Try Thunderkick Slots today for a different kind of slots gaming experience!

6. No Limit City Slots

No Limit City Slots are an exciting new way to play casino games and have fun. No Limit City is an award-winning provider of casino software, with all the slots and games having been developed in house by their team of creative professionals. No Limit City seeks to combine cutting-edge technology, fascinating themes and innovative game mechanics, resulting in a player experience that is entertaining and rewarding. With tons of great themes and plenty of chances to win big, No Limit City Slots will become your favorite go-to for a break from reality. With No Limit City Slots, the only limit is your own imagination!

7. PlayTech Slots

PlayTech slots are a great way to get your gaming fix. Featuring a wide array of themes, PlayTech slots are designed to provide the highest quality in entertainment and winnings. PlayTech slots offer top-notch visuals that create immersive playing experiences unlike any other. PlayTech's graphics and gaming styles offer something for everyone, including players of all ages and experience levels. There are a multitude of PlayTech slots available for play, so you're sure to find one that fits your personal gaming style. Whether you're looking for classic 3-reel slots or modern 5-reel games with wilds and scatters, PlayTech has you covered! So sit back, spin the reels, and see where PlayTech Slots can take you!

8. 4ThePlayer Slots

4ThePlayer Slots have become the new innovators in slot games from the UK. 4ThePlayer provides exciting, entertaining and rewarding video slots that offer something for everyone! All of 4ThePlayer's slots are designed with advanced features, innovative gaming mechanics and gorgeous graphics to create a truly immersive experience. 4ThePlayer also ensures fairness and security so you can trust the process when playing your favourite 4ThePlayer slots. With 4ThePlayer's state-of-the-art technology, players can be sure to enjoy their time spinning their favourite slots wherever they are. 4ThePlayers' cutting-edge slot creations should prove all you need for an enjoyable online gaming experience!

9. Microgaming Slots

Microgaming Slots offer a wide array of games that range from classic 3-reel slots to the more intricate multi-line video slots. They are one of the more established slot creators in the online casino market, delivering award-winning slot gaming since 1994. Their games offer something for everyone, from old-school gamers who want to replay their favorite retro slots to innovative players seeking to tackle dynamic new jackpots with intriguing bonus levels. With Microgaming Slots you can experience superior sound effects and high-quality graphics, coupled with easy navigation and straightforward gameplay made possible through cutting edge software technology. With Microgaming's commitment to safety and fairness, you can rest assured knowing you're playing trusted slot titles of the highest caliber, available anytime and anywhere.

10. Push Gaming Slots

Push Gaming Slots have captivated millions of players around the world, ever since their launch. Push Gaming is a game provider that specializes in innovative and exciting game releases, using cutting-edge technology to create some of the most popular slot games you'll find today. Push Gaming slots are carefully designed to bring hours of entertainment and plenty of winning opportunities and pushing the boundaries when it comes to modern graphics, sound effects and animations. With Push Gaming slot games, you'll be able to experience unique bonus rounds and outstanding features for an even more enjoyable playing journey. Push Gaming is definitely worth a look!

11. Hacksaw Slots

Hacksaw Gaming Slots are a relatively recent arrival (2018) to the online slots landscape. Hacksaw Gaming has quickly made a name for itself, creating top-tier high-volatility slots with a unique spin. Players can experience something altogether new with Hacksaw Gaming Slots. Their portfolio of games offers stunning graphics, rich bonuses and exciting gameplay that will add an extra spark to any slot enthusiast’s day. Hacksaw Gaming promises unforgettable gaming experiences with its extensive collection of risk-taking and thrilling slot titles. Get ready to join in on the Hacksaw Gaming revolution by playing one of their innovative games today!

12. Yggdrasil Slots

Yggdrasil Gaming has quickly made a name for itself as one of the premier providers of exciting and interactive slots machines. Yggdrasil provides players with an extensive array of innovative, high-quality games that are now available on mobile devices as well! Yggdrasil’s impressive portfolio is full of visually stunning 3D slots that consistently deliver exhilarating gaming experiences by integrating sounds, animations and bonuses into the game. Yggdrasil prides themselves on making it easy for operators to offer their games and make them available to their customers, ensuring players can enjoy their titles no matter where they are in the world. With the wide variety of Yggdrasil Gaming slots constantly growing, you can enjoy a thrilling experience every time you play!

13. Elk Studios Slots

Elk Studio Slots is a unique and fun gaming experience that has been operating since 2013, offering a huge selection of slots tailored to players with various preferences. Elk Studios carefully design each game with high-quality graphics, animations, and special bonuses and features to keep the excitement up. Elk Studios has something for everyone, from traditional slot gamers to newbies learning the ropes.

14. BluePrint Slots

Blueprint Gaming Slots are the thrill of a real casino in your own home. Launched in 2001, Blueprint is an industry leader when it comes to creating engaging and entertaining games. Blueprint Gaming Slots are designed with players' enjoyment in mind and offer great graphics, an enjoyable experience, and lots of chances to win big. Blueprint Slots also provide an amazing selection of bonus features that can really increase your winnings. You can trust Blueprint Gaming to deliver great slot experiences every single time you play. Get ready for the ultimate rush; Blueprint Gaming slots are waiting!

15. Relax Gaming Slots 

Are you ready for an exciting and rewarding gaming experience? Relax Gaming Slots offer a combination of high volatility and quality features to give an enjoyable entertainment experience. Players will find plenty of classic, video and progressive slots to choose from with unique themes, engaging graphics and interesting bonus features. As a player, you can enjoy the added peace-of-mind offered by Relax Gaming's commitment to offering games that are fair, secure and tested. With the random number generator certified by major independent authorities, players will know they're playing on slots known to be safe and secure. Whether you're a casual or experienced online casino player, Relax Gaming Slots provide an engaging way to play and win!

Best Payout Slots

Intrigued by the best payout slots on the internet? Then look no further! Return to player percentages (RTP) are used to calculate how much the best online slots payout, making them key pieces of information when determining which online slots offer players the best theoretical return for each spin played. We've rounded up the very best in best RTP slot games with 63 selections, each hand-chosen for high return to player percentages. Whether you're a fan of classic three-reelers or bonus filled five-reel slots, there's something for everyone.

Slot Games Stakes

Taking online slots for a spin has never been more accessible than it is today. Create an online casino account, and you'll be ready to play on the wide range of online slot machines available, from classic three-reelers to the latest 3D slots. Don't worry if you only want to make a small financial commitment - stakes start from as low as £0.10 per spin! If you're feeling fearless (or particularly lucky) then higher stakes may be more your style - some online slots permit bets of up to £100 per spin and even higher, so there's something to suit all tastes and budgets. Now it's just a matter of deciding which online slot is right for you!

Megaways Slots

Megaways slots have become a phenomenon in the world of online gaming. The slots using the Megaways name are licensed by Big Time Gaming and they are becoming increasingly popular among the wider gambling community. Megaways slots combine exciting graphics with unique mechanics, offering players a chance to win big rewards. Every megaways slot is different, varying in features and ways to win. For instance, some megaways games offer cascading reels while others provide an unlimited multiplier feature or megaways possibilities that can exceed 100,000 ways. All megaways slot games will offer special features such as free spins and wilds; how these features manifest may vary between games but the thrill of winning is still there for every megaways game released so far! Nowadays, almost all slot studios produce megaways slots for their audiences to enjoy, even if not using the megaways name or license, allowing ever-growing numbers of players to get creative with their plays and discover something new with every spin on megaways titles.

Jackpot Slots

Jackpot Slot games have been a long-time favorite of players, providing a thrilling and potentially highly lucrative form of gaming. Jackpot slots come in two main types - fixed jackpots and progressive jackpots. Fixed jackpots offer a set jackpot amount that comes with standard slot game play, while progressive jackpots increase with every bet placed on the game by players. Both these options provide bumper prizes to be won! It doesn’t matter what type of jackpot slot you’re playing - each promises plenty of fun and entertainment! With ample bonus features usually associated with jackpot slots, such as free spins and sticky wilds, you should always be on the lookout for exciting rewards. Players can hit jackpots at random or via various bonus rounds, making them even more attractive to prospective players. Play your lucky charms, spin those reels and prepare for a big win - jackpot slots are here to continue offering you plenty of opportunities.

Slot Game Themes

When it comes to the theme of a slot game, the choice is virtually endless with individual themes, combinations and unique one of kind themes to choose from.

Ancient Egypt Theme Slots

Ancient Egypt has always been an intriguing and mysterious land, steeped in myths and legends which have captivated people for centuries. Ancient Egypt-themed online slot games provide a way to virtually explore this spectacular era with all its Ancient Egyptian gods, temples, hieroglyphics and of course, the Great Pyramid of Giza. Ancient Egypt-themed slot games tell stories with their vivid graphics and dynamic sound effects that recreate a thrilling atmosphere similar to Ancient Egyptian civilisations. Join the Ancient Egyptians as you take unforgettable journeys through their ancient tombs, legendary cities and vast deserts filled with unimaginable treasures. Take part in new adventures and uncover rewards that have been lost in time. Ancient Egypt-themed slot games are sure to bring you thrilling entertainment while you relive the mysteries of Ancient Egypt!

Viking/Norse Theme Slots

Viking/Norse themed online slot games have been exciting players all around the world. These Viking-inspired slots combine dynamic graphics with thrilling gameplay to take you on an immersive journey through a mythical Viking landscape. The bonus features will keep you spinning in anticipation of Viking glory, while modern mechanics ensure that nothing gets boring. Designs range from legendary Viking battles and Viking mythology to Viking exploration and beyond, with an incredible music soundtrack that'll send chills down your spine and make every spin genuinely epic! Join the Vikings now and experience a unique and rewarding gaming experience like no other.

Horror Theme Slots

Horror-themed online slot games offer a truly unique gaming experience. These adrenalin-filled slots let players explore a thrilling and macabre world from the comfort of their own homes. Horror fans can look forward to discovering spine-tingling themes and engaging characters inspired by some of the genre's iconic films, from cult classics to modern masterpieces. While playing, some of these Horror themed online slot games use exciting new technology that immerses players in the narrative and amplifies suspense. Horror fan or not, these horror themed Slot Games present an electrifying experience that will keep everyone on the edge of their seat.

Oriental Theme Slots

Oriental-themed online slot games are an amazing way to experience the mystery, beauty and culture of Oriental Asia from the comfort of your own home. These exciting games are a fantastic combination of traditional Oriental themes with modern game mechanics that create a thrilling and immersive gaming atmosphere for all players. Whether you're playing for fun or competing for big wins, Oriental-themed online slot games can offer a truly unique gaming experience with lots of chances to win. Many Oriental-themed online slots also feature attractive bonus games, progressive jackpots and other creative game features—there really is something for everyone! With Oriental-themed online slots, players can explore a world filled with colorful graphics right at their fingertips—come join the journey today!

Movies Theme Slots

Movies-themed online slot games have been around for years, providing players with an immersive Las Vegas experience on their mobile devices. These video slot games are designed with the most popular movie franchises in mind, so you can expect plenty of fun graphics and exciting themes. Movies such as The Godfather, Scarface and Terminator provide classic titles to reel in new players but also keep long-time viewers coming back for more. With innovative bonus rounds that range from free spins to extra wild symbols, Movies-themed slots will keep even the most experienced gambler engaged and entertained. With a Movies theme there is something for everyone to enjoy!

Music Theme Slots

Music is an integral part of many people's lives, so it's no surprise music themed slot games have become incredibly popular among online casino players. Music-themed slot games let experienced and beginner players alike enjoy a fantastic gaming experience filled with tunes from their favourite artists or genres. These slots often boast jackpots, bonus rounds, free spins and generous payouts that make for some really exciting gameplay. Music-themed online slot games provide the perfect blend of art and luck that makes it a compelling yet rewarding choice for anyone taking the slots for a spin.

Adventure Theme Slots

Adventure-themed online slot games offer a unique experience that combines the thrill of exploration with the chance to win big. Whether you prefer fantasy or reality-based themes, these slots offer an escape from everyday life, immersing players in rich settings and stories that create exciting journeys as they spin and collect wins. Adventure-themed slots can range from historical epics to futuristic settings, all played out as gamers work their way up each slot's ladder of rewards. So if you crave a rush of excitement, why not try some Adventure-themed online slot games today? You never know - your next spin might be your lucky one!

Alien and Space Theme Slots

Alien and Space-themed slot games have rapidly become some of the most popular online games around. This is due to their exciting visuals and interactive features, which transport players out of this world! Alien and Space-themed slot games often combine elements of classic stories, such as Alien or Star Wars, and blend them with the fun format of a slot game. It's easy to see why they're so attractive to online gamers - it's a mix of adventure, suspense, excitement, and fun in one thrilling package. Whether you are looking for a fresh new experience or just a bit of light-hearted enjoyment, Alien and Space-themed slots provide something for everyone!

Fruit Theme Slots

Fruit-themed online slot games are a fun and easy way to pass the time. Fruit-themed slots offer a wide range of exciting gameplay mechanics and bonus opportunities while also presenting an iconic selection of fruit symbols on the reels. These slot machines often feature multiple pay lines, free spins, wilds and plenty of chances to win big with bright, colorful graphics and simple motion animations. Try your luck today and you could be in for some juicy rewards!

Irish Theme Slots

Irish-themed online slot games offer an exciting, authentic experience that immerses players in Irish culture. From Irish luck symbols to Irish characters, it's a full trip back to the emerald isle for anyone looking for some Irish fun. Sure, the chances of scoring some big winnings with Irish luck on your side don't hurt, either! What makes Irish-themed slot games so appealing is that they incorporate iconic Irish symbols, stories and good luck charms alongside modern betting mechanics and features. So while you can expect powerful pay lines and high-quality graphics, you're equally likely to find a few pots of gold or shamrocks when you spin those reels. Get ready to be captivated by Ireland's charm from the comfort of your own home today.