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100% Up To £100 Bonus
Plus Free Lotto Cards
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100% Up To £250
100 Bonus Spins
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Up To £1,300
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100% Up To £200
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SIGNIFICANT TERMS:
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100% Up To £100
Plus 10% Lifetime Cashback
SIGNIFICANT TERMS:
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100% Up To £100
Plus 25 NetEnt Bonus Spins
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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.
100% Up To £99
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100% Up To £500
Plus 30 Bonus Spins
SIGNIFICANT TERMS:
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.
825 Bonus Spins
On Book of Dead
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One Welcome Package per player. Max Bonus Bet £5. Get 3 Bonus spins for every £1 deposited up to 165 spins for each of your first 5 deposits. Min. deposit is £20. All spins are on Book of Dead only. Bonus funds must be used within 30 days and bonus spins within 10 days. Spins winnings credited as bonus and capped at amount equivalent to number of spins awarded. Bonus funds separate to Cash funds, and are subject to 35x wagering and withdrawal requirements. Terms apply. BeGambleAware.org.
100% Up To £400
Plus 50 Bonus Spins
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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.
100% Up To £123
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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.
100% Up To £100
Plus 20 Bonus Spins
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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.
100% Up To £50
Plus 25 Book of Dead Spins
SIGNIFICANT TERMS:
18+, First Deposit Only. Min. deposit: £10, max. Bonus £50. Game: Book of Dead, Spin Value: £0.10. WR of 30x Deposit + Bonus amount and 60x Free Spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the Free Spin winnings and bonus amount or £5 (lowest amount applies). Free Spins must be used before deposited funds. First Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonus Policy applies. Terms apply. BeGambleAware.org.
100% Up To £222
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18+. New players only. Min deposit £20. Bonus spins valid on Starburst only. Bonus funds are 100% up to £222 and separate to Cash funds. 35x (bonus only) wagering requirements. Only bonus funds count towards wagering requirement. £5 bonus max bet. Bonus funds must be used within 30 days, spins within 10 days, otherwise any unused shall be removed. Terms apply. BeGambleAware.org.
121% Up To £300
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18+ New players only. Min deposit £10. Bonus funds are 121% up to £300 and separate to Cash funds. 35x bonus wagering requirements apply. Only bonus funds count towards wagering requirements. £5 max. bet with bonus. Bonus funds must be used within 30 days, otherwise any unused shall be removed. Terms Apply. BeGambleAware.org Terms apply. BeGambleAware.org.
Up To £1,000 Bonuses
And 100 Bonus Spins
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18+. New players only. Min. deposit £10. Bonus: 1st deposit 100% up to £300 + 30 bonus spins (Reactoonz™), 2nd deposit 50% up to £500 + 50 bonus spins (Book of Dead™), 3rd deposit 25% up to £200 + 20 bonus spins (Legacy of Egypt™). Spins on specified games only. Bonus money is separate to Cash funds & subject to 35x wagering requirement. £5 bonus max. bet. Bonus must be used within 30 days, spins within 10 days, otherwise any unused will be removed. Only bonus funds contribute towards wagering requirements. Terms apply. BeGambleAware.org.
150 Free Spins
100% Up To £100
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18+, New players Only. £10 min deposit. £5 max bet using bonus. 40 x wagering applies. Bonus valid for 14 days. 15 Spins on Gonzo’s Quest game will be credited instantly + then 15 per day for 9 days. Free Spins valid for 72 hours from credit. Max Free Spins winnings £100. Skrill + Neteller excluded. Terms apply. BeGambleAware.org.
300 Free Spins
100% Up To £300
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18+, New players Only. £10 min deposit. £5 max bet using bonus. 40 x wagering applies. Bonus valid for 14 days. 30 Spins on preselected 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 excluded. Terms apply. BeGambleAware.org.
100% Up To £300
90 Book of Dead Spins
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18+, New players only, Min Deposit £20, Bonus spins are valid on Book of Dead only. Bonus funds are 100% up to £300 and separate to cash funds. 35x bonus wagering requirements apply. Only bonus funds count towards wagering requirement. £5 max bet with bonus. Bonus funds must be used within 30 days, spins within 10 days otherwise any unused shall be removed. Terms apply. BeGambleAware.org.
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Slot Games and Developers
Slot Game Reviews
Of course, one of the most important features of any UK slot site is its game catalogue. Not all casinos team up with the same game providers, and not all operators offer games with the same configuration. Indeed, it is possible for an operator to include or discount features when they take a game, and even to tinker with the Return to Player settings to improve their margins. Some of our favourite game developers have a flexible RTP set up that they sell into their operator partners to give them the power to increase or decrease the payouts on a game. Pragmatic Play, Play n Go, Novomatic and NetEnt all run with flexible RTP. All these suppliers carry a license provided by the UK Gambling Commission that allows them to build and distribute gambling games online.
It’s important to know all this when you choose which game to play and where to play it. That’s is where we come in.
Each week we review the latest slot games on release at our listed UK slot sites. There lots of new titles to pick from as every game studio has a busy schedule of releases. Use our reviews to help you find a slot that suits your style of play – from high risk thrills and spills to casual slots fun with regular payouts. In our reviews we cover key features of the games like RTP (Return to Player), volatility and top payouts. You can read more on this page where you’ll find reviews of this year’s top games including Microgaming’s excellent Mega Moolah makeover of Immortal Romance, Quickspin’s Sticky Bandits 3 Most Wanted and Relax Gaming’s must play high variance title for 2021, Top Dawg$!
You can also follow our game studio profiles where we provide information about the names behind each of your favourite slots, and where you can play their games, including No Limit City Casinos.
Serengeti Gold is the third in the Gold Series of games from Just For The Win, a safari-themed slot with free spins, multipliers and HyperHold Re-Spins.
- RTP: 96.1%
- Variance: High
- Top Payout: 2,500x
An epic Savannah backdrop provides the setting for a 5 reel and 3 row slot with 25 fixed active paylines. The base game might be slow but things crank up in the bonus rounds where Mini, Major and Mega jackpots offer wins of up to 2,500x.
GAME
RTP
VARIANCE
TOP PAYOUT
PAYLINES
FEATURES
PLAY NOW
RTP:
96%
VARIANCE:
High
TOP PAYOUT:
12,000x
PAYLINES:
117, 649
FEATURES:
Progressive Multipliers, Wilds, Free Spins, Mystery Symbols
RTP:
96.82%
VARIANCE:
High
TOP PAYOUT:
100,000x
PAYLINES:
9
FEATURES:
Scatter Win Jackpot, Free Spins, Multipliers
RTP:
96.03%
VARIANCE:
High
TOP PAYOUT:
150,000x
PAYLINES:
243
FEATURES:
Splitting cells, Multipliers, Free Spins, Wilds, Jumping Wilds
RTP:
96.13%
VARIANCE:
High
TOP PAYOUT:
10,000x
PAYLINES:
4,096
FEATURES:
Free Spins, Mystery Scatters, Symbol Upgrades, Wilds
RTP:
95.67%
VARIANCE:
Medium / High
TOP PAYOUT:
PAYLINES:
4,096
FEATURES:
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:
Video Slots
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!
Megaways™ Slots
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.
Progressive Jackpots
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 the home page with the prizes displayed in a ticker next to the logo.
Classic Slots
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.
Freeplay Slots
If you want to play slots for free you still can still do so at most UK casinos. 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!
Symbols
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 UK brands. You can more games like this in our article, Which Slot Machines Have The Best Payouts.
5 Slots With a High Payout
- Bloodsuckers II By NetEnt (98%)
- Goblin’s 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
Slot Site Payment Options
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 by most 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.
Casino Licensing
You must make sure that any online casino you choose to play at is fully licensed by the UK Gambling Commission. Every casino in the All Slot Sites listings 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.
Responsible Gambling
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. There are also links to charities helping those with addictions in the Useful Resources list at the bottom of this page.
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Slot Sites FAQs
- Which is the best online slot site?
This is a subjective choice, but as we show in our brand reviews, you should look at more than just the bonuses on offer. Check out the game catalogues, the payment services available, the speed of withdrawals, the licensing and the customer support reputation. Taking all these factors into account, our current favourite is Skol Casino from White Hat Gaming.
- Are slot sites rigged?
No, slot sites and slot games are not rigged. They use software in which the outcome of every reel spin is generated randomly by an algorithm so it cannot be fixed. The games at sites licensed by the UK Gambling Commission are always fully audited and tested to ensure that the games run in this way. Never play at sites without a UK license as you cannot be sure that they are fair. At AllSlotSites.com we only review UK GC-licensed sites.
- Which slots have the biggest payouts?
The slot games with the biggest payouts are progressive jackpot games like Mega Moolah and Mega Fortune. These game have jackpot prizes seeded at £1,000,000 and have been known to pay out prizes of over £10,000,000. You can also find standard slots with big prize potential. Jammin Jars 2 by Push Gaming is a good example. It has a top payout of 50,000x you stake.
- Which slot sites have Megaways™ games?
Due to the popularity of Megaways™ slots almost all slot sites now feature their games. This includes the original Big Time Gaming Megaways™ slots and those produced by their partners like Red Tiger and Blueprint Gaming. Check this page for more details.
- Which slot games have the best odds?
To find slot sites with good odds you need to look for slot games with a high Return to Player (RTP). The RTP refers to the amount of money paid out in prizes measured as a percentage of all the money wagered on a game. In short, a high RTP slot will give you better odds. Typically, slots have RTP of around 96% but you can find games with RTP as high as 98%. Check this guide to find games with high RTP.
- Can I play slots on mobile?
Yes, of course. All the casinos and slot games listed on this page are also available on mobile. You won’t need to download an app to play the games in most cases. Instead, you simply need to navigate to the casino URL in your mobile browser and play from there. You can sign up, deposit and play all on your hand held device.
- Where can I find new slot games?
Pretty much all casinos will have the latest games on them. Casino operators know that players are looking for new titles all the time so they make them available as soon as they can. You can also check our list of new slot sites which have a good selection of the latest games on them.