New players only. One offer per player. Min Dep £10. Max bonus bet £5. 1st Dep offer is 100% up to £250 + 100 Bonus spins on Aloha Cluster Pays. Spins expire after 10 days, funds after 30 days. Bonus funds separate to Cash. Wager Req of 35x Deposit + Bonus apply. Terms apply. BeGambleAware.org.
New players only,£10 min deposit, £5 max bet using bonus, 60x (40x referred player) wagering applies. Bonus valid for 14 days. 30 spins on pre-selected games will be credited instantly and then 30 per day for 9 days. Free spins are valid for 72 hours from credit. Max free spins winnings £100. eWallets excluded. Terms apply. BeGambleAware.org.
18+ new players only. Maximum £50 bonus. Minimum deposit: £20. Deposit Bonus wins are capped at £500. Max bet with active bonus: £2. Wagering requirement 100% match deposit bonus: 30 times sum of deposit + bonus. Winnings from Free Spins are credited as Real Money without wagering requirement. Some games may not be played with an active bonus. Games may contribute differently when wagering a bonus. Deposit Bonus expires after 30 days if wagering requirement has not been met. Free Spins expire after 3 days. One bonus allowed per person, address, device, IP. Terms apply. BeGambleAware.org.
Offer valid upon 4 deposits. 1st deposit: 50% up to £50 + 50 extra spins in Starburst, 2nd deposit: 30 extra spins in Book of Dead. 3rd deposit: 30 extra spins in Fire Joker, 4th deposit: 50% up to £50 + 40 extra spins in Gonzo’s Quest. 35x wagering applies. Terms apply. BeGambleAware.org.
Min Deposit: £10. Max Offer: 25 Free Spins [on a game of our choice]. Promo code: ELECTRIC. Free Spins Winnings will be capped at £2.50 and credited as bonus funds. 40x wagering applies to bonus funds. Games Bonus winnings are capped at £100 + original bonus amount. Games bonus funds may only be used on selected games only. Unused Free Spins expire after 7 days. Wagering requirements vary by game. We reserve the right to deny bonuses based on abusive bonus activity across sites operated by the Company. Deposit balance is available for withdrawal at any time (UK only). Terms apply. BeGambleAware.org.
18+, New players Only. £10 min deposit. £5 max bet using bonus. 40 x wagering applies. Bonus valid for 14 days. 20 Spins on preselected games will be credited instantly + then 20 per day for 9 days. Free Spins valid for 72 hours from credit. Max Free Spins winnings £100. Skrill + Neteller excluded. Always refer to Bonus Terms. Terms apply. BeGambleAware.org.
18+, Welcome Bonus for New Players Only, Maximum bonus is 100% up to £100, Min deposit is £20, No max cashout, Wagering is 35x bonus, Maximum bet while playing with a bonus is £5, Eligibility is restricted for suspected abuse, cashback is cash with no restrictions, Skrill and Neteller deposits excluded, Cashback applies to deposits where no bonus is included. Terms apply. BeGambleAware.org.
New Games customers only. Sign up using promo code ‘GAMES’. Deposit and stake £5 or more to receive 25 Free Spins on selected games. Free Spins credited within 24 hours. Free spin equal to 20p per spin. The 25 free spins are only available on selected games. Any winnings from free spins will be paid as cash. Free Spins expire after 7 days. E-Wallet & Prepaid Card restrictions apply. SMS validation may be required. Terms apply. BeGambleAware.org.
18+, New Players Only, £10 Min Deposit, £5 max bet using bonus. 40x wagering applies. Bonus valid for 14 days. 30 Spins on pre-selected games will be credited instantly + then 30 per day for 9 days. Free Spins valid for 72 hours from credit. Max Free Spins winnings £100. Skrill + Neteller exlcluded. Always refer to bonus terms. Terms apply. BeGambleAware.org.
New players only, only one offer per player, min deposit £10, max bonus £5, 1st deposit offer is 100% up to £100 + 25 bonus spins on Gonzo’s Quest and Starburst. Spins expire after 10 days, funds after 30 days. Bonus funds separate to cash, wagering requirements of 35x deposit + bonus apply. Terms apply. BeGambleAware.org.
18+, New Customers Only, Min Deposit £20, Wagering 40x Bonus, Max Bet £5 With Bonus Funds, 100% Up To £99 Bonus and 99 Bonus Spins on 1st Deposit, Eligibility is restricted for suspected abuse, No max cashout on deposit offers, Welcome bonus excluded for players depositing with Skrill or Neteller. Terms apply. BeGambleAware.org.
18+. New players only. 1 bonus offer per player. Min. deposit £20. Max bonus bet £5. Extra spins on selected games only- must be used within 72 hours. Bonus funds expire in 30 days, unused bonus shall be removed. Bonus funds are 100% match up to £500 + 30 extra spins on 1st deposit, 25% match up to £800 + 25 extra spins on 2nd deposit, and 50% match up to £200 + 50 extra spins on 3rd deposit. Bonus funds are separate to Cash funds, and are subject to 40x wagering the total bonus & cash. Only bonus funds count towards wagering contribution. Terms apply. BeGambleAware.org.
18+, New players only, 1 bonus offer per play. Minimum deposit £20. Max bonus bet is £%. 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 £400 on your 1st deposit. 40% match up to £3,000 on your second deposit, and 60% match up to £1,500 on your third deposit. Bonus funds are separate to Cash funds, and are subject to 35x wagering the total bonus & cash. Only bonus funds count towards any wagering requirements. Terms apply. BeGambleAware.org.
18+, New players only, Maximum bonus is £123, Max bet with bonus is £5, No max cash out, Wagering is 50x – Skrill & Neteller excluded, Eligibility is restricted for suspected abuse, Cashback is cash, so no wagering, Cashback applies to deposit where no bonus is included Terms apply. BeGambleAware.org.
18+, New Customers Only, Minimum Deposit £10, Bonus spins are valid on Fruit Shop only and subject to a 35x wagering requirement, and must be used within 10 days, otherwise any unused bonus spins will be removed. Bonus funds are 100% up to £100 and separate to cash funds. 35x bonus wagering requirements and only bonus funds count towards wagering contribution. £5 max bet with bonus funds. Bonus must be used within 30 days otherwise any unused bonus will be removed. Terms apply. BeGambleAware.org.
Our Guide To UK Slot Sites
There are 1000s of online slot sites for gamblers to pick from today. With hundreds of new games arriving each month and new casinos cropping up all the time, we are spoilt for choice.
So how do you decide where to play next?
Well, each of us will have different priorities when choosing a site, though for most of us the free spins and bonus package for new players will be pretty high up on the list. If you are a seasoned player then you will probably have a favourite game too, or even a favourite game provider that you look out for. If you are new to the reels then you will probably be searching out simple, straight-forward, low-risk slots that deliver regular payouts. Of course, whatever your choice you should always make sure you gamble at a site that is fully regulated by the UK Gambling Commission, provides a safe and secure cashier, and offers a professional support service to help with any queries or complaints you may have.
So it’s clear that there are a few considerations to bear in mind when choosing your next slots adventure. That’s why we have put together the following guide to help you find the right casino from our list.
Listed - The Best Online Slot Sites Voted For By Our Team
Before we get into the details of what makes a good slots casino, here we have chosen our favourites by overall service and bonus types. Remember that this is all subjective – you may have your own views but these should give you a good guide on where to start.
Top 10 Slot Sites
To begin, here are our current top 10 casinos as voted for by our expert editorial team. We have chosen these sites based on factors like operator reputation, bonusing program, game catalogue, payment options, and overall service level.
- Skol Casino – Best new online slot site
- Casino Lab – Best slot site for choice of games
- The Sun Play – Famous branded site
- Play OJO – Best slot site with no wagering bonuses
- Temple Nile – Best White Hat Gaming slot site
- Betfred Games – Best sportsbook slot casino
- All British Casino – Best British site
- Casino Gods – Best new player bonus
- CasiGO – Best for loyalty rewards
- Temple Slots – Best slot site for NetEnt games
Best No Deposit Slot Sites
Though no deposit bonuses are rare, it is still possible to pick them up when operators are feeling generous. Check the wagering requirements on any winnings as they are not likely to be immediately withdrawable. Also look to see how much you can win with your free spins, the payouts will normally be capped at between £20 and £100. But hey, these are free, no deposit bonus spins, so who’s going to be picky?!
Best Slots Sites With No Wagering Requirements
The best value bonuses and free spins come with NO wagering requirements. That means you can withdraw winnings from bonus or free spins wagering in cash directly! No questions asked! As you can see, this kind of offer is EXTREMELY rare. In fact, right now in the UK we only know of two casinos where this offer is available – our favourite of which is Skill on Net’s Play OJO. This is a great destination for slots play and they have built a reputation on providing what they call the fairest casino promotions online. We’ll let you decide if you agree.
Best Slot Sites With Low Wagering Requirements
Not all bonuses can be free of wagering requirements. However, some will have a lower requirement than others. Typically in the UK wagering requirements for a casino bonus will be 30x the value of the bonus (and sometimes the deposit). That means the player must stake money to this value before the bonus, and any winnings, become withdrawable in cash. Typically our bonuses with low wagering requirements start at 20x the value of the bonus. That means you have more chance of walking away with some cash in your pocket after you’ve enjoyed your free spins.
Online Slots Guide
Best UK Slots
Those casinos represent our favourite sites, but what about the games? There are thousands of online slots available for UK players to test their luck on and new ones released every month. But not all are of the same quality and some offer much more exciting and compelling gameplay than others. The best slot offer a thrilling mix of themes, features, maths model and payout potential. Of course, deciding which are the best is a subjective exercise, but when we want to take a spin these are the 5 games we turn to most often.
Progressive Multipliers, Wilds, Free Spins, Mystery Symbols
Scatter Win Jackpot, Free Spins, Multipliers
Splitting cells, Multipliers, Free Spins, Wilds, Jumping Wilds
Free Spins, Mystery Scatters, Symbol Upgrades, Wilds
Medium / High
Wilds, Sticky Wilds, Free Spins, Multipliers
The Different Types of Slot Game
When you load up a casino you will normally find that the slots listings are divided into categories. Some casinos will have more than 1,000 games in their lobby so it helps to have this categorisation so that players can easily find their favourites. A lot of operators also incorporate a function to filter by game provider as well as providing search boxes to help you locate a game by name.
These are the main categories of slot:
These are the most popular type of game at an online casino and the ones you are most likely to play. The average video slot will have a reel set of 5 or 6 reels, each with 3 or 4 rows of symbols. Some will take their inspiration from classic fruit machines, but most will draw on a wide range of interests – pretty much ANYTHING can be used as the theme for a slot game, which is what makes this type of gambling so fun. Prepare yourself for some pretty sensational graphics, animations and video too. Many of these games have Hollywood-level production values!
The Megaways™ slot engine has revolutionised this sector of the gambling industry. Here, each reel displays a random number of symbols after each spin, usually between two and seven. The more symbols displayed, the greater the number of paylines in play – as high as 117,649 in some games. Compare this to the typical video slot which might have just 10 or 20 paylines! Megaways™ creators, Big Time Gaming, have combined this game engine with incredibly high variance to create some of the most infamous high-risk slots of recent years.
These games are for the big jackpot chasers. Prizes in Progressive Slots can be in the millions of pounds, though of course the odds of winning are very low. You may have heard of titles like Mega Fortune from NetEnt, or Mega Moolah from Microgaming, which are famous for their life-changing prizes. You’ll usually find these games in a special area of a slot site with the prizes displayed in a ticker next to the logo.
If you want to dip into the retro corner of the market then classic slots could be for you. They will have a very basic design consisting of just 3 reels and they will use the symbols and imagery from old skool game machines – grapes, melons, lucky 7s and gold bars. These simple fruit machines are a great place to start. There are many developers still producing games like this every year. Play n Go’s own Fire Joker Freeze from 2021 is a good example.
If you want to play slots for free you still can at most slot sites listed on this page. In 2019 the rules around freeplay changed in the UK under direction of the UK Gambling Commission. You will first have to verify your ID and age with the gambling operator whose site you are playing at. That means registering your account and providing ID like a scan of your passport or driving license. If you have a small budget and want to play slots for real then you can still do that for very small stakes of as little as 1p or 5p at most casinos too.
Real Money Slots
All slots at the casinos listed here are available to play for real money. If you choose to play for real then have a think about how much money you want to spend before you start and set a stake value that you are comfortable with. Remember that a spin takes just a few seconds to complete so it is possible to spend your balance very quickly. Check out our guides on slot variance and RTP below to find out more about how real money slots pay out.
What Makes a Great Slot? Themes, Features and Gameplay
Themes, Sounds and Artwork
Every slot game has a theme of its own. Some are very popular and crop up many times over – Ancient Egyptian titles like IGT’s Cleopatra or Novomatic’s Book of Ra are very popular, as are games based on Popular Movies or Rock n Roll bands. Others are more obscure with themes like Steampunk or Science Fiction. Whatever your taste there will be something for you – so if you’re going to spend some time with a game, make sure it’s one that looks good to you!
Book of Dead- Egyptian-Themed Slot
Guns n Roses – Rock n Roll-themed slot
Every slot will have a mix of low value and premium symbols. Low value ones are typically card values 9 through to Ace or the suits, Spades, Clubs, Hearts and Diamonds. Premium symbols are always based on the game’s theme. For example, a common symbol in an Egyptian-themed slot would be the Scarab Beetle. In addition there are usually Wilds, which sub in for all other symbols in winning lines, and scatters, which are symbols needed to trigger the free spins round.
Features and Gameplay
Most slots will have additional features that kick in when special symbols land in the base game. Features are what elevate the gameplay beyond the standard spins. They give you more fun, more tension, and hopefully more chance of scoring bigger wins. Here are some examples of typical slot game features.
- Free Spins – These are the most common feature in slots. Something like 5 or more free spins of the reels will play out, often with the opportunity to earn more by landing extra scatter symbols. Free Spins usually come with enhanced symbols like Multipliers or upgrades.
- Multipliers – These are commonly added to symbols or whole reels. When the symbol forms part of a winline then the multiplier value, which can be as high as 15x or 20x, is applied to the payout. Game developers like Big Time Gaming have built amazing slots that combine the free spins and multipliers to sensational affect in games like White Rabbit and Bonanza.
- Cascading Wins – Another slot feature that appears regularly, particularly in Megaways™ games, is Cascading Wins. In this instance, whenever a win occurs, all winning symbols are removed from the reels and new ones drop down in their place. This can create new wins, and further cascades. Check out NetEnt’s Gonzo’s Quest for a good example of a Cascading Wins slot.
- Expanding Symbols – A popular features in high variance games like Play n Go’s Book of Dead is the Expanding Symbol. This is an icon that lands on the reels and automatically expands upwards to fill an entire visible reel space. This enhances your win potential on that spin, and in Book of Dead it is possible this way to fill an entire screen with one symbol and score the top payout.
- Expanding Reels – the biggest change to come about in the slots industry in recent years was Big Time Gaming’s famous Megaways™ engine in which each reel has a random number of rows assigned to it. In the typical Megaways™ slot there will be 6 reels with up to 7 rows, which creates up to 117, 649 paylines per spins when every reel has the maximum of 7 rows each. The Megaways™ model has been licensed to many of BTG’s rivals now and competitors like Yggdrasil have brought out their own variations on the Expanding Reels theme. So what was once a niche type of gameplay is now ubiquitous in the industry and is even making it’s way onto Vegas casino floors too.
- Mystery Symbols – Those who enjoy a bit of extra random action tossed into the mix will enjoy the Mystery Symbol feature in their slots. These icons land as Question Marks or something similar and then all change into one identical symbol from the paytable simultaneously. With more identical symbols appearing on the reels at the same time the chances of scoring a win are enhanced. This is another feature commonly used in slots like Big Time Gaming’s Bonanza and White Rabbit.
These are just a few of our favourite slot features and gameplay enhancements that take the base game action in your favourite slots to a new level. Some of us love feature-packed games because they are more compelling and you rarely get a spin without something extra happening. But not all slots players like all these features and you can still play some classic 3 reel slots and even some high variance games where the gameplay is stripped right back to the basics. It’s worth trying both kinds of game to find out which you prefer.
Slot Game Return to Player (RTP)
The Return to Player (RTP) is the average amount that will be paid out as a percentage of the overall money wagered on a game over time. Most slots have an RTP of around 96% to 97%, though some will be lower and some will be higher, even getting closer to 99%. It’s important to remember that this is an average number, not an absolute statistic! Just because a game has an RTP of 95% doesn’t mean that it will always pay out £95 on every £100 wagered. That would be very boring, and pointless! No, this is the average – some of us will experience much better returns on our wagering, and some of us will experience much lower returns. However, it is a useful number to know, and if you are looking for better odds then you could try playing games with a higher than average RTP.
Here are some of the best games with a high RTP. Just click the image to play at Slot Nite, one of our favourite recommended slot sites. You can more games like this in our article, Which Slot Machines Have The Best Payouts.
5 Slot Games With High RTP
BLOODSUCKERS II BY NETENT (98%)
GOBLINS CAVE BY PLAYTECH ( 99.32%)
UGGA BUGGA BY PLAYTECH (99.07%)
MEGA JOKER BY NETENT (99%)
STARMANIA BY NEXTGEN (97.87%)
Slot Game Variance
The other significant slot feature to look at when choosing your game is the variance. This will tell you how volatile a game is, by which we mean, how far from the average return to player the payout may vary during your session.
Low variance games will not drift far from the RTP so will pay out in small, regular amounts. These our considered to be low risk games. High variance games, considered to be high risk gambling, are those where the payouts will be well outside the normal RTP during your game play with long periods of dry spins with a very low RTP, followed up by short bursts of very high payouts.
If you are new to slots, or if your budget is small, then high variance games are to be avoided because they can use up your funds very quickly with no return. If you are in for the high stakes, high drama of massive win sequences that come from games like Bonanza and Dead or Alive then high variance will be your thing and you should seek out these titles.
Find out more in our Guide to Slots Variance.
5 Slot Games With High Variance
PINK ELEPHANTS BY THUNDERKICK
WHITE RABBIT BY BIG TIME GAMING
BOOK OF DEAD BY PLAY N GO
MONTEZUMA MEGAWAYS™ BY WMS
BONANZA BY BIG TIME GAMING
After checking out the bonuses and the games on offer at your prospective casino you should also consider which payment options are available to you. You may choose to deposit with a debit card which all operators will facilitate. However, there are other options that you are available at most sites, and each one comes with its pros and cons. If you are interested in using an eWallet then Paypal is a good choice as it is accepted at many slot sites and offers fast and free deposits and withdrawals. Other eWallets, including Skrill and Neteller are also widely accepted and come with the same advantages, as well as allowing you to transact without directly sharing your bank details with the gambling operator, which for many is a more safe and secure method of payment. Elsewhere, mobile slots players may like the opportunity to deposit via their mobile phone using BOKU. This simple method has a daily limit of £30 and funds are added to your phone bill or removed from your current balance.
You can find out about each of these in our Slots Payment Guides.
Best Payment Services At UK Slot Sites
This table shows the most popular payment options available to slots players in the UK. Remember that not all payment options are available at all sites and the deposit limits, bonus eligibility and withdrawal times vary between services.
- Visa and Mastercard
3 to 5 Days
Up To £10,000
Up To £10,000
Up To £10,000
- Apple Pay
Up To £5,000
3 To 5 Days
Up To £10,000
NOTE: This is just a guide. Any gambling operator may impose their own deposit and withdrawal limits. Always check the terms and conditions at any slot site that you choose to play at before making a deposit.
You must make sure that any online casino you choose to play at is fully licensed by the UK Gambling Commission. Every casino listed on All Slot Sites has been issued with a license by this body. They are responsible for regulating the industry in the UK and ensuring that operators act responsibly to ensure vulnerable gamblers are not exploited, that their platforms are not used for criminal enterprise, and that the service they provide is safe, fair and fully audited. You will also find that almost all the sites in the UK are licensed in an international jurisdiction, by a body like the Malta Gaming Authority or the Gibraltar Gambling Control Commission. Operators like to base themselves in these territories because as well as offering online gambling operator licenses, they also provide favourable taxation laws. You can check the licensing status of any online casino in the footer of the website.
NOTE: Gambling regulation in the UK is currently under review and we are expecting some big changes in 2022 that will affect slots players in particular. Proposed changes include £2 stake limits, affordability checks for all players who want to deposit above a given threshold and restrictions on VIP programs and bonusing for all players. Find out more in our guide to the Gambling Act 2022.
Gambling at a licensed casinos ensures that you are playing slots that have been audited to ensure the outcome of each spin is entirely random, and that in the event of a dispute over a game, or your account, you have recourse to a third party. But that is not all that is important. Licensed casinos are also required to provide vital Responsible Gambling features in your account to help you manage how much you spend per day, per week and per month, and to give you the option to exclude completely by having your account locked and your address removed from all marketing lists.
Problem Gambling is a high-profile issue in the UK right now. If you think that you may have a problem with the amount you are spending on gambling then you can find out more about where to get help on our Responsible Gambling page.