Any top online casino site that accepts players from the UK should know that British players love to try their luck with the best online slots. Casino operators should be aware that if they don’t offer the top slots that have been produced by the best software developers, then they run the risk of nobody registering with them. In this guide, we shall give you some of the best online casinos to play slot games at, take a look at the different kind of slot games, discuss various bonuses, and mention some of the best slots to play.

Best Real Money Online Slots Casinos in UK

US British casino players are pretty spoiled for choice when it comes to online casinos because we have hundreds of different online casino sites that we can open an account with. However, not all online casino sites have been created as equals, and it can be hard for novices to find the best slot sites to play at.

This is where are going to try to help you out now because in the following table you can find five top online casino sites that are great for UK players to register with. You can also see the welcome bonuses that each one is offering, which can make one seem more enticing to you than another.

UK Online CasinoWelcome Bonus
BetfredBet £10 and get 200 free spins
NetBetDeposit £10 and use "NBWELCOME500" to receive 500 free spins
Betway100% match up to £50
Play OjoDeposit £10 and receive 50 free spins
888 Casino88 free spins no deposit required

N.B. When it comes to claiming any type of bonus, always make sure that you take the time to read the T&Cs that apply. By doing this, you can find out about the wagering requirements that are in play and the number of days that you will be given to complete them. You will also see the min deposit and how long you have to use the bonus.

Top Free Online Slots Casinos in the UK

If the above five online casinos did not tickle your fancy, then do not worry since we are now going to give you five more that might be more appealing to you:

  • LeoVegas - This is an award-winning online casino that is offering new punters a welcome offer of 50 bonus spins on the Big Bass Splash slot and up to £100. This is a great site for those who want to play online slots on the go as they offer a quality mobile gaming experience
  • Party Casino - Those who sign up with this casino can deposit £10 and claim 50 bonus spins on NetEnt's Starburst slot, which is one of the most popular slots to have ever been made. They offer all of the top banking methods, so making deposits and requesting withdrawals should never be an issue
  • Casumo Casino - This quality casino will offer new players a 100% match up to the value of £25 as well as 20 free spins on Sahara Riches Cash Collect. If you encounter any issues when playing here, do not worry because Casumo Casino has a quality customer care team that will always do their best to help you out
  • BoyleSports - This Irish-based online casino is happy to accept players from Britain and will even treat you to a £50 welcome bonus when you sign up with them and deposit £50. If you also like to place bets on sports, then they have a quality sports betting section that you can make use of as well
  • Ice Casino - This is a relatively new online casino since they only came into being in 2021, but they have already shown us that they have plenty of quality. If you decide to join them on their journey, then they will give you 50 free spins without you having to place down any deposit

Online Slot Variations

There are different types of slots that you can encounter when you are making your way through the online casino world, and we are now going to take some time to explain the main ones for you.

Classic Slots (Three-Reel Slots)

The very first slot games came with just the solitary payline and three reels. The symbols were usually fruit such as lemons, cherries, and oranges while other common symbols included bells and lucky 7s. Such online slot games are still popular in the iGaming industry, but they do not come equipped with bonus features and additional paylines. Some Brits who like to play online slots for real money just enjoy having a sense of nostalgia.

Video Slots

As is clear from the name, video slots have an extra layer of multimedia. Alongside the buttons and reels that you would expect to find in a regular slot, video slots often come with thematic graphics, sounds, and fun animations. In his respect, you can say that they are a mix between a classic fruit machine and an arcade game. These games are usually equipped with bonus features and can have extra paylines and reels to increase excitement levels.

Multi-Payline Slots

A payline in a slot game is a line on which a payout will be awarded if you manage to land a winning combination along it - the more paylines that a slot has, the higher your chances of scoring a win will be. A multi-payline slot game is simply a game that has more than one payline present. Most slot titles that you will come across will fit into this category since the average slot game now features 20-25 paylines. The paylines can be horizontal, diagonal, vertical, or zigzagging across the reels.

Progressive Jackpot Slots

Progressive slot games are ones that have a jackpot which will keep increasing in size until someone is fortunate enough to land the winning combination that will unlock it. Once someone has won it, the jackpot size will reset to a predetermined amount and will start to grow until it is won again. These are some of the most popular online slots UK due to the fact that huge prizes can be won for relatively small wagers.

Megaways Slots

Many slot enthusiasts love megaway slot games because they have innovative reel mechanics that offer anywhere between 243 and 117,649 different ways to win every spin. Each spin that you make on a megaways slot game is unique and you never know how many paylines are going to be active on your very next spin. We have the software developer Big Time Gaming to thank for this exciting feature as they developed the concept back in 2015.

Most Popular Online Slot Games

It is not easy to find the best online casino slots for UK players because there are so many that we can pick from, but below we have provided you with five quality games that you should try out when you get the chance:

  • Starburst - This game from NetEnt comes with 5 reels, 10 paylines, and can be played for just £00.10. The feature that you need to look out for are the Starburst Wilds since these can expand and give you some big wins. It has an RTP of 96.09%, which is average, while the volatility is low to medium
  • Irish Pot Luck - This is another top slot from NetEnt and it has 5 reels, 20 paylines, and has a minimum spin value of £00.10. Keep an eye out for random multipliers and a free spins bonus feature that can provide you with a number of free spins and multipliers of up to 15x your stake. The max win is 5,000x your wager, while the RTP is 96.06% and the volatility is low to medium
  • Chilli Heat - Pragmatic Play are the software developers behind Chilli Heat and it comes with five reels and 25 paylines. It has some very spicy bonus features such as a Money Respin bonus round were you can collect money sacks that have a cash amount attached. If you fill the whole grid with cash bags, you get 1000x your stake and the monetary value on the bags. The volatility of this slot game is medium, while the RTP stands at 96.5%
  • Tree of Riches - Another game from Pragmatic play, but this time they have returned to basics as it has just three reels and one payline. Keep an eye out for the wild symbol as these can provide multipliers of 5, 8, or 10x your wager. Despite it being a simple slot, you can still land 2,888x your stake. It is another slot with a medium volatility, and it has an RTP of 96.5%
  • Blue Wizard - This is a playtech slot that has 5 reels and 30 paylines. The Fire Blaze feature is what you are looking for here since you can win money and four fixed jackpots. You can also unlock multipliers that go up to 16x your stake. It is a low to medium volatility, while the RTP stand at 96.5%

N.B. Before you go ahead and play new online slots UK with real money, we suggest that you play them in their demo mode first. All of the top online casinos available to British players will offer free online slots. This gives you the chance to find out everything that you need to know about the game without spending a single penny - you can find out whether it is your cup of tea or not. However, keep in mind that you cannot win real money when play demo versions of slot games.

Online Slot Sites Type of Bonuses

There are different kinds of bonuses that you can encounter in the online casino world, and we are now going to take a quick look at some of the more common ones.

Free Spins

You will be given a number of free spins that you can use to spin the reels on a slot game without spending any of your own money. We should stress here that online slots free spins will usually be given for slot games that the online casino is trying to promote. This is why it is important to always check the T&Cs that apply.

Deposit Bonus

A deposit bonus is one that you can only claim after you have deposited a certain amount of money. The majority of welcome bonuses fall under this category - for instance, your first deposit will be matched 100% up to the value of £200.

No Deposit Bonuses

A no deposit bonus is one that can be claimed without you having to deposit a single penny - some online casinos might require you to input your card details for verification purposes, but no money will be taken from it. These are very popular bonuses since they allow players to check out the online casino without having to fully commit. Online slots UK no deposit offers will see you get a number of free spins for a particular slot without having to deposit any cash.

Reload Bonuses

This type of bonus is offered to existing players who have already placed previous deposits. It is a way for the online casino to reward their loyal players and convince them to carry on playing with them. Reload bonuses can offer bonus money or bonus spins.

VIP Bonuses

These are only offered to those players who spend a lot of money at an online casino. If you are invited to join a VIP programme, then you will be treated to better cash bonuses and more free spins that regular players. Some casinos will also offer tickets to big events as well as some cool gadgets.

Frequently Asked Questions about Online Slots

What Are The Best Online Casino Slots?

This is subjective because the best online casino slots for one person might not be the best for another. It is all about personal taste. However, some of the best online slots for UK players are:

  • Starburst
  • Chili Heat
  • Irish Pot Luck
  • Blue Wizard
  • Tree of Riches

What Online Casino Slot Pays Out the Most?

There is no definitive answer to such a question because slot machines all have a random number generator which means that you never know when a game is going to pay out. It is all about luck at the end of the day.

Which Online Slots are the Best for UK Players?

Many UK slot players think that progressive jackpot slots are the best type of slot game due to the fact that they have a jackpot that will carry on increasing until size until someone is lucky enough to win it. Some top progressive slots are:

  • Santa's Ways
  • American Jet Set
  • Dragon's Riches
  • Gladiator
  • Buffalo Grand

Can You Really Win Money Playing Online Slots?

Yes, you can win really money when you are playing slots online, but only if you are playing with real money. If you are playing a demo slot game, then there is no chance to win real cash.