Guide to the Best Payout Online Slots in the UK

This review of the best paying online slots in the UK is essential reading for any British gambler hoping to maximise their winnings when gambling on the Web. It’s all about understanding RTP (Return to Player), and how it influences the frequency of landing a winning line.

UK Casinos with Best Payout Slots

Casino Bonus Visit
1 200% Up To £75 welcome bonus + 75 Spins Play Now
Regent Play Welcome Bonus offer consists of 3 deposits: 1st deposit: 100% up to £50 + 20 Spins on Starburst, (minimum deposit required £20) 2nd deposit: 50% up to £75, (minimum deposit required £20) 3rd deposit: 50% up to £75, (minimum deposit required £20) After first deposit made, customers will get + 20 Spin for the next 4 days: 1st day after First Deposit: 20 Spins of Finn and the Swirly Spin 2nd day after First Deposit: 20 Spins of Book of Dead 3rd day after First Deposit: 20 Spins of VIP Black 4th day after First Deposit: 20 Spins of Aloha! Cluster Pays Winnings won with spins that require deposit, have to be wagered 35x. Bonuses that require deposit, have to be wagered 35x. This offer is available to players residing in United Kingdom only. Offer is valid for new depositing players only. The Welcome Bonus must be wagered within 21 days of being credited to your account. Regent reserves the right, at any time, to revoke any welcome bonus not used within the allotted time period. Bonuses that require deposit, have to be wagered x35. Deposits may be withdrawn before a player’s wagering requirements have been fulfilled. However, if this occurs, all bonuses and winnings will be voided/removed from the player’s account. Players must contact support in order to withdraw their deposit. >>> Terms and Conditions <<<
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Any references to bonuses and free spins are subject to the following terms: New players only, min deposit £10, £8 max win per 10 spins, max bonus conversion equal to lifetime deposits (up to £250), 65X wagering requirements and full T&Cs apply. Please see promotions page for more information. >>> Terms and Conditions <<<
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Welcome Offer is for New Customers Only. The 80 chances are credited as £20 welcome bonus and players can spin 80 times at £0.25 on the Mega Moolah progressive slot game. The minimum first deposit required is £1, for all subsequent deposits the minimum deposit is £10. A two hundred times wagering requirement applies on all bonuses and certain games contribute a different percentage to the wagering requirement. See full terms and conditions here. >>> Terms and Conditions <<<
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Bonus Policy and Terms of Service apply. Min. deposit: £20. Max. bonus: £100. Offer valid on first 4 deposits. Offer only applies to new players. When you open new account, you have the option of not receiving the Casiplay welcome bonus, by clicking ‘later’ at the end of registration process. When you choose the option of receiving the Casiplay welcome bonus, you are subject to the bonus policy Welcome package includes 4 deposits bonuses as follows: *1st deposit: 50% up to £50 + 40 extra spins in Starburst *2nd deposit: 40 extra spins in Starburst *3rd deposit: 60 extra spins in Book of Dead *4th deposit: 50% up to £50 + 60 extra spins in Gonzo's Quest. >>> Terms and Conditions <<<
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Any references to bonuses and free spins are subject to the following terms: New players only, min deposit £10, £8 max win per 10 spins, max bonus conversion equal to lifetime deposits (up to £250), 65X wagering requirements and full T&Cs apply. Please see promotions page for more information. >>> Terms and Conditions <<<
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18+. New players only. Min Deposit £20 Max Bonus Bet £5 Winnings from spins capped at £50 100 Zee Spins valid on Starburst (first 10 credited immediately upon first deposit; rest credited at 07:00 GMT at 10/day). Spins must be used by 23:59 GMT of the day on which they are credited to player account, any unused shall be removed. Bonus funds must be used within 30 days. Bonus funds are separate to Cash funds, and subject to 35x wagering (bonus + cash). Terms apply. Play Responsibly. >>> Terms and Conditions <<<

By reading on, you will find out all about the importance of RTP and how is relates to “house edge,” and what impact variance and volatility have in determining best online slots percentage figures. In short, we will tell you everything you need to know so you can discover for yourself, which machines pay the best.

A Summary of the Best Payout Slots in the UK

In the table shown below, we summarise the best payout slots you’ll come across online here in the Great Britain. A little later on in this review, we will tell you more about what goes into rating these games. But first, the table.

Game Title Theme Reels and paylines
Book of 99 Ancient Greece 5 x 3; 10 paylines
Lucky Leprechaun The Luck of the Irish 5 x 3; 20 paylines
Hot Ink 98 Tattoo parlour 5 x 4; 1024 ways to win
Retro Reels Extreme Heat Fruit machine 5 x 3; 30 paylines
Couch Potato Classic one-armed bandit 3 x 3; 1 payline
Book of Dead Ancient Egypt 5 x 3; 10 paylines
Bloodsuckers Vampire 5 x 3; 25 paylines
Devil’s Delight Fires of hell 5 x 3; 20 paylines
Bork the Berserker Comic book action 5 x 3; 25 paylines
Steam Tower Victorian era action 5 x 3; 15 paylines

Knowing Where to Look for High Payout Slots Percentages

To get the maximum enjoyment out of playing online slots, your first consideration should be the quality of game, the challenges with which it you, and the pleasure you get from playing it. Playing at online casinos with highest slot payouts should be your aim, and our reviews, which are subject to ongoing recension, will help you with that.

But while winning is of course important, it should never be your prime objective. As long as you have fun and play responsibly. Landing combinations that lead to payouts does increase the pleasure and finding the online slot machines with best payouts is the place to start.

Before you play a particular online machine, go to the game’s rules or information page where you should find instructions on how to play, the payout table, and often the RTP percentage. If it’s not there, you next best thing is to find an online review of the game, which is almost certain to display the game’s RTP.

But the way we recommend you track down the best payout online slots UK casinos offer is to use the lists published here on our website.

The Top 10 UK Best Payout Online Slots

There are literally thousands of games from dozens of software providers to choose from, so finding the best paying slot games is no easy thing. But don’t worry. We are here to make your online gambling experience the best it can be. That’s why we publish what we deem to be the top 10 best titles you can play right now in the table below.

Game Title Software Provider Theme RTP
Ugga Bugga Playtech Fruit machine plus 99.07%
Mega Joker NetEnt Traditional slot 98.9%
Jackpot 6000 NetEnt Old school nostalgia 98.8%
1429 Unchartered Seas Thunderkick Ocean exploration 98.6%
Starburst NetEnt Outer space 98.5%
Jokers Strike Quickspin Classic slot machine 98.11%
The Catfather Pragmatic Play Cats 98.1%
Bob the Epic Viking NetEnt Norse folklore 98%
Jokerizer Yggdrasil Amusement Park 98%
Rainbow Riches Reels of Gold Barcrest Irish folklore 98%

Pick any one of our top 10 best playing slots to maximise your chances of landing some winning lines.

How RTP Relates to the Highest Payout Online Slots

If you’re new to online gambling, you will hear a lot about “RTP” and will wonder what it means and what is its significance.

The initials “RTP,” stand for Return to Player. This phrase basically tells you how much money you can expect to win back when you are playing a particular game. It’s not restricted to slots, by the way. It applies to all online gambling games.

But before you get too excited when you see RTPs like the 99.07% awarded to Ugga Bugga, you need to understand something. Yes, it is one of the best paying online slots UK casino offer, but the RTP measurement is taken over a prolonged period of play – millions of spins in fact.

So, even though you might play a game with an RTP of 99% or more, you are not likely to see that sort of return if you only play for a few minutes. But, having said that, the best payout slots online bear one thing in common with all games – top payout or not. The outcome of all spins is determined by the online casino’s RNG.

RNGs and How They Work

RNG stands for Random Number Generator. It is a device that comes up with a random result which determines where symbols lands where in a machine’s window. The key word is “random.” In other words, the result is unpredictable. It why the only way an RTP can be calculated is over millions of spins. The number and value of the winning lines landed is compared to the number and value of spins taken, and it is shown as a percentage.

The Licensing and Auditing of Best Payout Slots Online Casinos

Most online gambling platforms that welcome players from the UK are licensed by the UK Gambling Commission or the Malta Gaming Authority. Both are highly respected license providers, and one of the things they monitor is that all of the brands they license have their RNGs independently audited and fair game certified.

The companies that carry out this auditing are organisations like eCOGRA, iTech Labs, and iGaming Labs. They also do RTP tests for software providers and casinos. So, whenever you see one of these names posted on the highest paying online slots websites, you know that online gambling industry best practice is being observed.

Because games work on a purely random basis, RTP is as good a guide as you can get to the best online casino slots payouts. But the odds are always loaded in the House’s favour. So, if you do get ahead while playing, and it happens quite often, it’s best to quit while you are ahead, and play again at another time.

Best Paying Slot Machines Casino House Edge

You will also come across the expression “house edge” when gambling online. It’s the same thing as RTP but looked at from the House’s rather than the player’s.

While an RTP of 99% indicates that when gambling £1,000, a player hopes to have £999 returned to them through winnings, from the casino’s perspective, they can expect to retain £1 for every £1,000 wagered. It’s the difference between the amount of money a casino keeps from that which is wagered, as opposed to the money a players wins from what they wager. The same thing but from a different angle. It’s not just about RTP though.

The Variance of Volatility of the Best Paying Casino Slot Machines

Whereas RTP is an indicator of the amount of money a players can expect to get back over a long session when playing a particular game, variance or volatility is a measurement of risk. A sgame with high volatility will present you with a long run of low paying wins, followed by bigger wins at random. A low variance game means you win more often, but smaller amounts.

The Software Developers with the Highest Paying Slots

  • BGT – Big Time Gaming is famous as being the software developer to create the MegaWays engine, with its 117,649 ways to win. It changed the course of online gaming forever.
  • Blueprint Gaming – Blueprint has been around for over 10 years. They are known for their “Jackpot King” progressives, the likes of Irish Riches MegaWays and Slots of Gold.
  • Microgaming – Perhaps the best-known software provider in the industry. With a history stretching back to 1994, and as developers of the biggest payout progressive ever – Mega Moolah, they have many top payout titles to their name.
  • NetEnt – NetEnt are one of the premier software developers in the online gaming world. They provide over 200 games (many of which are high payout slots) to more than 200 online gaming sites, all of which can be accessed by players in England.
  • Play’n GO – Established since 2004, Play’n GO are one of the most prolific game developers around. They regularly launch around over 50 new titles per year, some of which are top payout slots.
  • Playtech – Another of the software development giants. Founded in 1999, and with over 600 titles to their name, you will at some stage of your gambling future play one of their best paying casino slots.
  • Red Tiger – Red Tiger is on of the newer software developers to appear in recent years. They were launched in 2014. Their RTPs are not quite as high as some of the other game providers, but they are still lucrative.
  • Yggdrasil – Another of the newer brigade, Yggdrasil have been around since 2015. They have already made a name for themselves launching games like Valley of Gods and Vikings Go Berserk. RTPs on their games are always competitive.
Slot Provider Slot Machine Title RTP Theme
BTG White Rabbit 97.24% Fairy-tale
Blueprint Gaming Spinal Tap 97.29% Hardcore Rock
Microgaming Win Sum Din Sum 98% Classic slot machine
NetEnt Kings of Chicago 97.8% Poker
Play’n GO Wizard of Gems 97.66% Wizardry and magic
Playtech Golden Tour 97.71% Golf
Red Tiger Gaming Wild Spartans 96.43% Greek Mythology
Yggdrasil Tut‘s Twister 97.1% Ancient Egypt

These are just a few samples of the best paying online casino slots for UK players. There are many more, and you can find them by delving deeper into our website.

How to Choose the Highest Payout Slots to Play

The number of games, game providers and online casinos is immense, so finding the best paying ones could take longer than you thought. Remember, a game’s RTP gives you the best clue to the top paying titles, but you also need to take a game’s variance or volatility into consideration as well.

You’ll find all the best casino slot payout percentages listed here on our website, so please feel free to take a shortcut to ensure you have the best fun for money experience and stretch your bankroll as far as it will go in search big jackpot wins.

Frequently Asked Questions

What sort of percentages do the best payout UK games have?

The percentage payout or RTP, varies from title to title. Games with the biggest jackpots, like progressives, tend to have lower RTPs. Across the board, RTP percentages range from 96% to 99%. You find the best paying slot games listed here on this website.

Which UK games have the highest RTPs?

The Ugga Bugga game from Playtech has an amazing 99.07% RTP. It’s one of the few that exceed the 99% benchmark. Others include Ocean Princess from NetEnt, and Goblins Cave from Playtech.

Should I bet to the max when playing slots?

The key to enjoying your online gambling experience is to bet responsibly. If your bankroll will support max betting you should go for it. Payouts become exponentially higher if you go for a maximum bet rather than a minimum. If you do land a winning line, you’ll get a significantly higher payout.

Do I have to deposit real money to play the best payout games?

No, you can play many of the top payout online titles for free in demo mode at many UK casinos. However, you cannot win real money. To do that, you will have to first make a real money deposit. There are some low deposit casinos around and you may also find some no deposit bonus offers. Please feel free to check this website for more information.

What does the expression “loose slot machine” mean?

A loose slot machine is a game that pays out more often than others and has a higher percentage RTP.