Play Online Slots: UK 2018 Guide

Feel the thrill as you watch the reels spin! Tremendously popular amongst casino fans of all ages, online Slots are now available in the thousands for players to enjoy.

Join the online Slots community by signing up to one of our recommended online Slots casinos below and secure your CasinoGuide exclusive bonus today!

Play safely - all casinos are licensed and regulated by the UK Gambling Commission.

Online Slots: Discover the Fun!

play online slots

With online Slots, the choice of games you can play is immense.

The vast amount of online Slots games available can be a little daunting. Fortunately, we have done the hard work for you!

Simply pick from our list of online Slots sites (UK Gambling Commission approved) and grab your welcome bonus. Then, treat yourself to some quality time at a fantastic Slots casino UK players love to play at!

Not ready to play online Slots for real money? Try our no deposit bonus Slots UK list!

Examples of Online Slots Wins

Here is a video of a YouTube user and online Slots streamer, who managed to hit a massive lucky streak. Watch him netting over £2500 of winnings in less than 10 minutes!

The game being played is 'Icy Wilds' - an IGT Slots game. Get in on the action with your Betfair Casino bonuses or Bet-At-Home sign up offer today!

If that isn't enough to inspire you, watch the same player win nearly £1000, using small stakes, in under half an hour!

The game being played is 'Dracula's Family' - a Playson Slots game.

Online Slots with bonus offers 

online slots bonus offers

All of the recommended casino sites above come with a highly generous Slots bonus. Some of these are even exclusive to CasinoGuide!

When playing at a Slots casino, UK players have the best of all worlds. A vista of signup bonuses, deposit bonuses, free spins, and more await you at the Slots websites listed above.

As mentioned above, when playing Slots online, you will find yourself being offered many different kinds of bonuses. If you are looking for online Slots with bonuses, you have come to the right place.

When choosing a Slots bonus, UK players have the choice of numerous highly reputable online casinos. In our list above, you can find the best Slots bonus UK casino sites have to offer, right here and now.

Best Online Slots Games With Bonus Included

Casino websites provide you with a large Slots bonus to help you get a feel for using their site/app. Online Slots bonuses also enable you to decide which kinds of Slots games you enjoy the most.

Most online Slots sites will allow you to use these bonuses on whichever Slots games you choose. Others are valid on a selection of games designed to give you a varied overview of that casino's games library.

Of course, once you start playing online Slots for real money, the entire library of games will become available. If you choose to play Microgaming Slots games, for example, you can enjoy spectacular graphics and crystal clear sound while playing online Slots games themed around your favourite films and TV shows!

Online Slots welcome bonus

There are many different types of Slots bonus (including the NetEnt casino bonus). The first, and most common, is the Slots welcome bonus. This is a gesture from the Slots websites to say thank you for joining their casino.

This is also sometimes known as a ‘Slots signup bonus’. Online casinos are hugely competitive, and will do all they can to earn some customer loyalty from you.

You can also expect to be rewarded for playing Slots online on mobile devices. There is usually an extra bonus to be claimed for downloading casino apps after signing up. iPhone and Android casino slots are the gift that keeps on giving!

Online Slots With Free Spins

As well as the Slots welcome bonus, you will also find many Slots sites with free spins. Typically, this will be offered as a sweetener to Slots with sign up bonus offers. One typical example would be ‘£50 welcome bonus and 100 free spins on Starburst’.

Playing Slots with free spins is an easy way to get into the online Slots experience. It allows you to enjoy the thrill of playing Slots online, with none of the risk. Check out our exclusive free spins casino offers to claim yours!

Online Slots Bonus Codes

Often used to tempt existing online Slots players back, Slots bonus codes are typically sent directly to you via email. This is quite common with Playtech Slots in particular.

The value of each online Slots bonus code varies greatly. If you have been a regular player over a long period of time, you should receive more lucrative online Slots bonus codes.

If you aren’t yet signed up, you can still get your bonus – but you won’t need any Slots bonus codes. Just head to the top of the page, pick a casino you like, and click ‘Play Now’. Your bonus will be automatically applied once you sign up.

Online Slots with deposit bonus

slots deposit bonus UK

By far the most lucrative type of bonus is the online casino deposit bonus.

This is where the real money is! Online casinos love it when you make a deposit as it shows that want to start playing for real. To get the biggest bang for your buck, an online Slots deposit bonus is what you need.

At CasinoGuide we pride ourselves on listing online casinos offering only the very best Slots deposit bonus to new customers. We display the biggest Slots deposit bonus UK casinos have to offer, so you can get the most out of your online Slots experience.

How Do I Claim My Slots Deposit Bonus?

It couldn’t be easier. We’ve done all of the hard work for you by finding the best Slots with deposit bonus offers. All you need to do is choose one!

At the top of the page is our list of the best casinos for online Slots. You can compare them by their reviews, mobile compatibility, and of course, the Slots bonus amount.

Online Slots Tournaments

Looking for a way to add even more excitement and competition to your online Slots experience? You may enjoy playing in a Slots tournament online!

These add an additional layer to online Slots play. You are competing against other people around the world, not just against the game you've chosen to play.

Play a Slots Tournament on 888 now!

Slots Tournaments: How Do They Work?

Essentially, an online Slots tournament typically works like this:

  • You buy in and receive a certain amount of credit (the same as everyone else who is competing in the tournament).
  • The credit you receive from the buy in is the only money that you pay during the tournament. You use that credit and try to win more points than the other competitors within the time limit.

Usually there is some form of prize structure, with the top 3 players receiving winnings from the buy-in pot. This is what makes online Slots tournaments so lucrative and exciting. With just a couple of hours play you stand the chance of winning massive prizes from a single buy in!

Differences Between Slots Tournaments And Regular Online Slots

  • You only pay once, and you play for points - only the tournament prize offers cash wins.
  • Turbo and auto play features are disabled - it's totally on you to spin the reels as quickly as possible!
  • Once the time is up, your credits are gone - these are only for use during the tournament so it's important to spend them quickly.
  • You can win a lot, while betting a little - regardless of which Slots game you play on.

Other Slots Tournament Types

  • Slots tournaments which specify a single Slots game that all competitors must play on. The credits you get for your buy-in won't work with any others.
  • Slots duels - essentially 1 on 1 Slots tournaments where you compete against a single opponent.
  • Slots races - similar in concept to typical Slots tournaments, these are all about reaching a certain target of winnings or points before your opponents.
  • Real money Slots tournaments - these are more for the experts; Slots tournaments where you are playing with real money rather than bought credits or points. These can be highly lucrative, but also come with higher risks.

Online Slots Tournament Pro Tips

  • Decide in advance which game you will play, after having checked its paytable.
  • If you make a big win, don't stop to celebrate! Keep on spinning to make the most of your time limit.
  • Sometimes big wins aren't immediately shown in your credit, but don't let that slow you down - the win will show eventually
  • Keep your focus and keep spinning throughout the time period to make the mot of your credits

Choosing Between Slots Websites

We’re here to make your gambling life easier. That is why we provide thorough reviews and exclusive bonuses for all of the Slots websites we list.

Playing Slots online is a fun and simple distraction from everyday life. It’s not complicated, nor does it require hours of practice. Just click (or tap, if you’re on mobile), and play!

Some of the best Slots websites have included Slots in their gamification efforts - rewarding you with extra points, credits, free spins and so on. Check out our Kaboo Casino review to read about one of the industry forerunners in this regard.

If you're feeling adventurous and futuristic, you can also try Virtual Reality Casino Slots games!

Try Online Slots for Free

Not sure if playing Slots online is for you? Remember, you can always 'try before you buy'!

Here on CasinoGuide you can play free Slots, along with a host of other free online casino games. And once you're ready, just take your pick from our recommended online casinos to play for real.

Play Slots for real money Online!

Over a hundred years since his invention hit the saloons of San Francisco, Charles Fey’s Slots legacy continues to live on like he could have never imagined.

Slots games continue to reel in money for numerous kinds of Slots casino – UK and worldwide, online and offline. 

Is It Legal To Play Slots Online For Real Money?

Are you:

  • A resident of the United Kingdom?
  • Over 18 years of age?

If your answer to both of these questions is 'yes' - you can play Slots for real money online. Gambling in the UK is completely legal. Operators are licensed by a regulatory body called the Gambling Commission, which ensures fair and transparent practices are used.

Some other countries do not allow online gambling so freely however. If you are outside the UK it is always wise to double-check the local laws to ensure you are able to play legally.

Online Slots: How To Win

Slot machines use random number generators in order to strike symbols. If you find a way of cracking the game and securing a jackpot in your favour, you may be some kind of genius!

Regardless, these Slots tips will stand you in good stead while you play:

  1. Contrary to popular belief, if an online Slots machine gives you a big payout you shouldn’t rush away; it might pay out again.
  2. Learn about and take a chance on Progressive Jackpots for potentially huge wins!
  3. Always know your limits, and know when to walk away! Play for fun, not for profit, and you’re a winner every time.

Online Slots games UK players can choose from

A vast number of Slots websites exist nowadays, all boasting their own huge libraries of online Slots games. These have themes ranging from the classic fruits and bars, to movies, and more.

However, there is more to knowing which Slots games to play than simply picking the theme. For example, when selecting their preferred type of Slots games, UK players have the possibility of winning small payouts or larger payouts.

The main variations of Slots online include:

Classic Online Slots

Love classic 3-reeled online Slot games? Many retro fruit and 7s Slots games can be found at the online casinos listed above.

These were the first to be introduced to the online gambling scene. There are countless classic online Slots offering anywhere between 1- 8 paylines, and sometimes even bonus games or free spins.

Video Slots

Animated video Slots offer wonderful graphics and fascinating new themes. The symbols of the game are usually related to the overall theme of the video Slot. Often the paylines are more generous than other types of online Slots.

Having evolved from 3-reeled Slots, online video Slots have turned the excitement level up a notch. They offer a wider range of bonuses and compelling storylines as well as side games. Of all the various game software providers, Play'n Go casinos offer some of the most inventive Slots concepts around.

3D Slots

If you like video Slots, then just wait until you experience the upgraded version of video slots in 3D! This variation of online Slot game has combined classic video Slots with gripping adventure games.

Playing 3D video Slots allows you to enjoy a video and casino game simultaneously. You can feel the satisfaction of completing the, as well as possibly winning a huge amount of money. What could be better?

Progressive or Jackpot Slots

Generally these types of slots are the same as video Slots with one simple difference; an additional bonus pot. A progressive jackpot is collected over time as players continually place their bets.

Typically, a percentage of each bet goes into a bonus pot which could be won by any player. Depending on the game, this amount that can often run into the millions! If you’re feeling lucky looking to win a hefty sum of money try a progressive slots game today!

If you like to have a dose of strategy with your online Slots, or are a bit of a Poker enthusiast, who not try a Video Poker online casino? This hybrid of online Slots and Poker is hugely popular among online casino game enthusiasts. You can even play Jacks Or Better Video Poker here on CasinoGuide!

The most popular Online Slots games in the UK

Online Slots has never been a more popular casino game with United Kingdom players than it is right now. The market is absolutely booming, with the top casino game software providers churning out game after game, each specifically tailored and designed to cater to a particular type of online Slots player.

Heavily featured in some of the best games are characters of supernatural ability, such as fairies and superheroes. Of course there remains the more standard themes you would expect such as fruit and gems.

Here are 5 of the most popular Slots games available right now:

popular online slots starburst


Developer: NetEnt

Starburst is arguably NetEnt's most popular video Slots game. It has 5 reels, 10 paylines, and mixes vibrant colours with a classic fast-paced arcade feel.

Aesthetically, it is a very beautiful game thanks to its central theme of many-coloured jewels in a glittering cosmic background and the soundtrack is very engaging without becoming repetitive and annoying.

The most popular feature is the Starburst Wilds. When these symbols appear on one of the 3 middle reels, they expand across the entire reel and stay this way for up to 3 re-spins - which are essentially free spins on Starburst.

popular online slots avengers


Developer: PlayTech

Save the world from the demigod Loki in this reincarnation of the first Avengers blockbuster movie, which offers you plenty of bonus features and free games.

When Iron Man, Captain America, Thor, Hulk, and Nick Fury appear on consecutive paylines, you are given a reward that comes to 10x your stake.

But the best feature has to be the Wall of Heroes - which allows you to play one of four free spins modes, each of which is inspired by one of the superheroes. Eventually you will uncover Loki, and your total win will be revealed.

popular online slots ninja fruits

Ninja Fruits

Developer: Play'N Go

This is a great adaptation of the classic mobile game Fruit Ninja, which enjoyed huge levels of popularity around the time that the smartphone (and in particular, the iPhone) started gaining ubiquity in the United Kingdom.

The free spin feature is unlocked when you have a Geisha symbol showing on reel number 1, 3 and 5 at the same time. As well as the free spins, you instantly win 5x your stake, making it a highly worthwhile mid-game bonus.

You can also get an additional bonus by aligning the Shuriken bonus symbol on reels 3, 4 and 5 simultaneously - in this feature you win rewards for throwing the Shuriken at a number of different fruits and knocking them down.

popular online slots twin spin

Twin Spin

Developer: NetEnt

Rounding off our list we have a classic Slots experience, epitomised by its visual theme of fruits, numbers and bars and ameliorated by the addition of the unmistakeable 'WILD' symbol.

The reason for the name 'Twin Spin' is that there are twin reels that are linked during every spin, which can be identified by the flashing golden lights around them. If you are lucky, these expand to further reels and sometimes even all of them, which obviously increases your chances of winning quite considerably.

With this feature, alongside 243 paylines and stacked symbols, there's plenty to be won while playing Twin Spin!

Slots and Bingo

If there are two online games that go beautifully hand in hand, it has to be online Slots and Bingo. Both games are enjoyed almost universally, thanks to their virtue of being great to just ‘pick up and play’. You can either play online Bingo as a complement to online Slots, or on its own.

No prior knowledge, practice or skill is required in order to have fun playing Slots and Bingo. This makes it the perfect distraction for anyone who lacks the time or energy to play more complex online casino games such as Roulette and Blackjack.

With that said, if you want to learn, you can play Roulette for fun without risking any real money right here on CasinoGuide.

Bingo Slots Bonus

Almost all online Bingo sites offer something in the way of Slots games, but not all Slots websites offer Bingo. If being able to play both is essential to you, then you can:

  • Sign up at a Slots online casino and a Bingo website, or;
  • Just sign up at a Bingo site and get your fill of online Slots there

Just be aware that the choices of Slots games will likely be smaller at an online Bingo site. If you like to play multiple games, you're better off with one of the dedicated Slots sites UK operators provide.

Play Online Slots, pay by phone bill

slots pay by phone bill

Adding funds to your account can be as simple as sending a text.

Making a Slots deposit by phone bill is fast becoming one of the most popular ways to add funds to your online casino account.

That’s right – with online slots you can pay by phone bill. This makes the process of playing Slots games for real money easier than ever. To make a Slots deposit by phone is simple; just look for the option when you are signing up at your choice of online casino.

The option may be worded slightly differently depending on the different Slots websites. Look for something like ‘Slots pay by SMS’, ‘Slots deposit by mobile’, or ‘Slots with phone bill deposit’.

With Slots, pay by mobile phone for total convenience

It is even possible to top up your online slots casino account just by sending a text, when you play at a Payforit casino. This is a particular type of phone bill payment, handled by the highly secure and popular Payforit platform.

When it comes to collecting your winnings however, you won’t be able to use the same method. Each casino has its own withdrawal methods - see our guide to casino payment options to find out more.

Online Slots & PayPal

When you are ready to cash out your winnings, Slots websites will present you with a variety of options.

At CasinoGuide, we highly recommend PayPal casinos online that accept this highly trusted and secure payment platform. If PayPal isn't your thing, Neteller casinos are a highly credible alternative worth trying.

Of course if you prefer, you can usually choose to simply withdraw your funds via cheque or bank transfer.

Benefits of playing Slots with PayPal

One of the best things about playing Slots with PayPal is how easily and quickly the payment is typically processed.

PayPal is a highly secure and respected online wallet. This should give you peace of mind that when you are withdrawing your winnings, PayPal has got you covered.

You can manage your PayPal wallet online through any PC or tablet, or simply download their app. It really couldn’t be simpler.

History of Slots games

slots for real money

The original Slots machines looked a little like this.

Charles Fey, the man considered to be the father of slot machines, invented the first simple machine in the United States in 1887, which incorporated a lever and coin slot. His inspiration to create this machine was perhaps its poker based predecessor, the ‘trade stimulator’ which dispensed cigars or free drinks tokens to winners.

What set his device apart from this machine was the fact that Fey’s slot machine was the first gambling machine to give out money.

According to the book, Slot Machine Mania by Dwight E. Crevelt, the San Francisco Chronicle had reported that Fey managed to impress excited saloon and restaurant owners in the city through his demonstration of how the three reeled ‘Liberty Bell’ slot machine worked, on April 14th of the same year. The intrigued observers predicted that the flashy invention would make a lot of money in the future.

The Introduction of Slots games at the casino

Many years later, in 1946, slot machines were introduced in Las Vegas casinos by a man named Bugsy Siegal, who initially installed the machines to serve as a distraction for wives and girlfriends of players participating in table games, such as poker and blackjack.

As time has gone by, continuous advances in technology have also caused these machines to develop into 5-reeled slots, which cumulatively often account for about 80% of a typical casino’s profits. Take a look at our History of Slots page for more information on the origins of this famous game.

Online Slots FAQ

If you're a newbie online Slots player, you may have a few questions. Get the answers you need before you dive into one of our Slots websites and begin playing!

Are there any key questions missing? Get in touch and let us know!

Are Online Slots rigged?

If you are playing on Slots websites in the UK, such as those featured in our list above, then you can feel safe in the knowledge that the Slots are not rigged against you.

This is because they are licensed by the regulatory body in the UK known as the Gambling Commission. This Government body is responsible for ensuring all casinos provide totally random and fair play to all customers.

How to play Online Slots?

  1. Choose an online casino where you can play Slots online - one from our list above will be a good choice!
  2. Sign up at an online casino - the process should take less than 5 minutes
  3. Make your deposit by whichever means you prefer (i.e. credit card, PayPal, phone bill etc)
  4. Choose a game to start playing. Read the rules to see which reel combinations will give you a win
  5. Spin the reels, cross your fingers and have fun!

How do Online Slots work?

Slots online work via the magic of random number generators (RNGs). These RNGs produce a unique and random set of numbers every time you spin the reels. Each of these numbers relates to a position on each reel.

This is all done in the background, while you see animations and colourful graphics on screen.

Do Online Slots really pay?

They certainly can, if you're smart enough and lucky enough! There are numerous stories of players who have won literally millions of Pounds playing online Slots. Countless more have won smaller, yet still life-changing, sums of money.

Remember that even if you only withdraw small winnings, it's easy to do thanks to the wide variety of payment options available.

Play Slots Online Today!

Online slots games have taken the world by storm. Now there is a gigantic selection of Slots available online for you to enjoy.

CasinoGuide can help you find the right online Slots casino to play at. Just choose from one of our recommended casinos at the top of the page and benefit from a huge bonus just for signing up!

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