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Written by: Simona Boshkova

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Approved by: George Blackwell

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Updated: October 30th, 2024

Highest RTP Slots – Find The Best RTP Slots in the UK

The highest RTP slots offer the best opportunity to win real money when playing slots online. These games have some of the most generous RTP rates around, giving you a greater chance of winning over time. Read on as we break down the top sites to find these best payout slots, categorised by provider, including the 99.07% Ugga Bugga slot from Playtech.

Best Casinos for High RTP Slots

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Payment Options:
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Payout

24 Hours

Wagering

Slot

1000

Win %

97.7

Min Dep

Max Cashout

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Payment Options:
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Payout

24 Hours

Wagering

Slot

1000

Win %

97.7

Min Dep

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Payout

24 Hours

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40x

Slot

1000

Win %

97.7

Min Dep

£10

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None

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Payment Options:
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Payout

24 Hours

Wagering

Slot

1000

Win %

97.7

Min Dep

Max Cashout

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24 Hours

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1000

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97.7

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0

Slot

1000

Win %

97.7

Min Dep

£20

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Payout

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Wagering

40

Slot

1000

Win %

97.7

Min Dep

20

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Payout

24 Hours

Wagering

Slot

1000

Win %

97.7

Min Dep

Max Cashout

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Payout

24 Hours

Wagering

Slot

1000

Win %

97.7

Min Dep

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Payout

24 Hours

Wagering

0

Slot

1000

Win %

97.7

Min Dep

£10

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Wagering

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1000

Win %

97.7

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Table of Contents:

  1. Best RTP Slots in the UK
  2. What is RTP in Slots?
  3. How We Rate Top RTP Slots?
  4. Advantages of High RTP Slots
  5. Things to Look for in High RTP Slots
  6. Casino Bonuses for High RTP Slots
  7. RTP and Jackpot Slots
  8. High RTP Slots vs Other Casino Games
  9. Best RTP Slots by Provider
  10. Slot Machines With Best Odds
  11. Top 5 96% RTP Slots
  12. Top 5 97% RTP Slots
  13. Top 5 98% RTP Slots
  14. Our Verdict on Best RTP Slots

Best RTP Slots in the UK

Mega Joker Slot

Grosvenor

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Payment Options:
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Payout

24 Hours

Wagering

Slot

1000

Win %

97.7

Min Dep

£10

Max Cashout

LOW WAGERING BONUS

The Mega Joker slot from NetEnt is the best RTP slot in the world, offering a fantastic value of 99%, a leader in the category of highest RTP online slots. The game provides a classic fruit machine experience with exciting features, including a Supermeter bonus and the chance to win progressive jackpots. With an impressive RTP and high volatility, the game offers potentially valuable wins. The Supermeter mode, activated by a winning combination, introduces a new paytable and the opportunity for significant payouts.

Additionally, Mega Joker’s mobile-optimised version allows players to enjoy the game on various devices without the need for additional downloads. With its nostalgic design and engaging gameplay, Mega Joker remains a popular choice among both traditional and modern slot enthusiasts.

Layout5×3
Paylines5
Betting Range£1 – £10
Max Payout2,000x
RTP99%
VolatilityHigh
Bonus Features1

Blood Suckers Slot

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Payment Options:
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Payout

24 Hours

Wagering

x10

Slot

1000

Win %

97.7

Min Dep

10

Max Cashout

18+. UK & ROI only. New customers only. Deposit & spend £10, to get 50 Free Spins on selected slot games (Value £0.10 each). Use within 7 days. Restrictions and T&Cs apply.

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Blood Suckers is a vampire-themed slot game by NetEnt, featuring an impressive 98% RTP. You can enjoy an immersive gaming adventure and potentially enjoy excellent features, like wild, scatter, and bonus symbols, triggering free spins and a Vampire Slaying Bonus game. Known for its eerie graphics and sound effects, Blood Suckers is a popular choice for both desktop and mobile players.

Layout5×3
Paylines25
Betting Range£0.10 – £50
Max Payout1,014x
RTP98%
VolatilityLow
Bonus Features5

1429 Uncharted Seas Slot

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Payment Options:
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Payout

24 Hours

Wagering

Slot

1000

Win %

97.7

Min Dep

Max Cashout

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1429 Uncharted Seas slot is another excellent high RTP slot game featuring an impressive RTP of 98.60% and low variance, which means it offers frequent yet smaller wins. The game includes expanding wilds and a bonus feature where you can win up to 50 free spins. The design is nautical-themed, with detailed drawings of sea creatures and a seafaring soundtrack, providing an engaging and potentially rewarding gaming experience. In my experience, the game provides an immersive and potentially very rewarding experience, with the great RTP value delivering some great outcomes.

Layout5×3
Paylines25
Betting Range£0.10 – £25
Max Payout670x
RTP98.50%
VolatilityLow
Bonus Features1

Marching Legions Slot

Virgin
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Payment Options:
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Payout

24 Hours

Wagering

Slot

1000

Win %

97.7

Min Dep

£10

Max Cashout

*Click for full Rules. New members only, must opt in. Min £10 deposit & wager within 30 days from registration. Free Spins: on Double Bubble. 30-day expiry from credit. 1p coin size, max lines. Bingo: Advertised ticket value based on £1 tickets. Game availability & restrictions apply. 18+. ‡ Current Jackpots are across selected games. #AD

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Marching Legions, developed by Relax Gaming, features a 5-reel, 3-row layout with 243 ways to win and a high variance. With an impressive RTP of 98.12%, you can aim for a maximum payout of 10,000x the bet. The game is set in ancient Rome featuring legionnaire symbols that trigger Marching Respins and Free Spins. The design captures a Roman public square, providing an immersive experience with dynamic animations and engaging gameplay.

Layout5×3
Paylines243
Betting Range£0.10 – £100
Max Payout5,000x
RTP98.12%
VolatilityHigh
Bonus Features2

Money Cart Slot

Betfair

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Payment Options:
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Payout

24 Hours

Wagering

Slot

1000

Win %

97.7

Min Dep

Max Cashout

NO DEPOSIT OFFER

Money Cart 2 slot features a Wild West theme with dark, Steampunk-inspired graphics and soundtrack. The game has 5 reels, 4 rows, an RTP of 98.0%, and high variance. The maximum payout is 5,000x your stake and can lead to some incredible outcomes. The main feature is the Re-Spin, triggered by three Bonus symbols, which can expand the reels up to 6. Symbols like Bonus, Golden Bonus, Payer, Collector, Collector/Payer, Sniper, Necromancer, and Reset Plus enhance gameplay, offering various multipliers and resets. Built with HTML5, the slot is compatible with all mobile devices. Money Cart 2 Bonus Reels is a thrilling, high-volatility game with a notable RTP.

Layout5×4
PaylinesN/A
Betting Range£0.10 – £200
Max Payout5,000x
RTP98%
VolatilityHigh
Bonus Features1

What is RTP in Slots?

RTP is a fundamental concept in the world of online slot machines, and it stands for Return to Player. It refers to the percentage of wagered money that a particular slot machine will pay back to players over time. This value is crucial as it helps players understand their potential winnings and make informed decisions about which games to play.

What does RTP Mean in Slots?

RTP means the long-term average payout. For example, if a game has an RTP of 95%, it means that for every £100 deposit, players can expect to receive £95 back in winnings on average. It’s important to note that this percentage is calculated over a large number of spins on the casino site and does not guarantee immediate returns or bonus rewards. Because of this, it is often referred to as Theoretical RTP.

RTP directly influences a game’s payout. A higher RTP means the game is programmed to return a larger portion of the total bets over time, resulting in theoretically more frequent or substantial payouts. Conversely, a lower RTP indicates less frequent or smaller payouts. Thus, RTP is a key factor in assessing a game’s payout potential.

When it comes to the world of online slots, the average RTP value in the industry is considered to be around 96%. However, there are also many slot games that offer RTP percentages above this threshold, thus providing a potentially more rewarding experience.

How is RTP Calculated?

RTP is calulated with a simple formula that can be crucial to slot players. However, before an RTP can be attributed to slot games, they need to be played extensively. A study by UKGC (UK Gambling Commission) showed that to allow for accurate payout rates that millions of spins need to happen and even then they could still vary by 1-2%. This is due to the volatility of slots, compared to a table game with a low house edge like blackjack.

The actual calculation for RTP is simply dividing the money won by a player by the amound they wagered. Then, to get the percentage, you multiply by 100. For example, if you wagered a total of £10,000 on a particular slot game over a set period of time and received £9,500 in winnings during that time, the RTP would be calculated as follows:

RTP = ($9,500 / $10,000) x 100 = 95%

How We Rate Top RTP Slots?

When it comes to rating the best RTP slots in the UK, we don’t just look at the RTP value and call it a day. We actually do more thorough research and detailed checks to see if the game is a good choice. Let’s take a look at what aspects we consider.

  • First-Hand Testing – We first check the game’s reported RTP value and then we check the game first-hand to see if the reported RTP equates to the game’s performance and gameplay.
  • Comparing RTP to Standard – We verify the game’s RTP percentage and compare it to the industry standard, which, as I mentioned, is typically around 96%.
  • Player Feedback – We gather and analyse feedback from a broad spectrum of players to gauge satisfaction and reliability.
  • Comparing RTP to Volatility – We assess how the RTP aligns with the game’s volatility. High RTP with low volatility often means more frequent, smaller wins, while high volatility may offer larger, less frequent payouts.
  • Check RNG – We also make sure to check the slot’s RNGs and how they affect the RTP.

Advantages of High RTP Slots

Unlike other aspects of slot games, choosing to play high RTP slots in the UK doesn’t have any considerable disadvantages, and you can only look forward to perks and benefits. After all, the higher the RTP, the more likely it is for the game to pay out. Let’s go over them in more detail.

  • Increased Winning Potential – Higher RTP slots are designed to return a larger percentage of wagers over time, enhancing your chances of securing wins. This can be a great enhancement to the overall experience.
  • Reduced House Edge – High RTP naturally lowers the house edge, thus increasing your chances.
  • Improved Confidence – A high RTP provides confidence in fairness and reliability
  • Consistency in Payouts: High RTP slots tend to offer more consistent payouts. This can make it easier to manage your bankroll.

Things to Look for in High RTP Slots

Volatility

Volatility is a crucial aspect of high RTP slot games and one that is very tightly entwined with a game’s RTP value in general. Volatility indicates the risk and payout frequency, while RTP shows the theoretical payout over time. Low volatility can indicate more frequent yet smaller wins, while high volatility usually provides less frequent but bigger wins. You need to look for games that provide a nice balance of both RTP and volatility =.

Bonus Features

Look for high RTP slots with engaging bonus features, including free spins, multipliers, wilds, and bonus rounds. These can significantly enhance your winning potential and the overall entertainment value of the game.

Game Mechanics

Check the slot’s mechanics, such as paylines, reel setup, and special symbols. Many new high RTP slots in the UK are made with Innovative mechanics like Megaways, cascading reels, Gigablox, Cluster Pay systems, Infinity Reels, and so much more. These can add excitement and variety to the game, as well as increase the chances of winning.

Maximum Win Potential

Assess the slot’s maximum win potential. High RTP slots with substantial maximum payouts can offer the best of both worlds – a good return on investment and the chance for bigger wins.

Casino Bonuses for High RTP Slots

Casino bonuses can often be the perfect choice when choosing to play the highest RTP games in the UK, as they can provide even more opportunities for big wins. Let’s go over some of the most popular types of casino bonuses that you can claim for high RTP slots and explore them in more detail.

  • Free Spins Bonuses – Free spins are undeniably the most common type of slot bonus related to high RTP slot games. It is often offered as part of a welcome package or as an ongoing promotion, allowing you to spin the reels of high RTP slots without using your own money, increasing your chances of winning without additional risk. These are some of our favourites when playing the best RTP slot games, and one of the main reasons is that their availability – found at around 80% of casinos with high RTP slots.
  • No Deposit Bonuses – No deposit bonuses give you free credits or spins simply for signing up. This type of bonus is perfect for trying out high RTP slots without any initial investment, providing a risk-free way to explore the games.
  • Deposit Match Bonuses – These bonuses match a percentage of your deposit, effectively doubling or even tripling your bankroll. For example, a 100% match bonus on a £100 deposit gives you an extra £100 to play with. This increased bankroll allows for more spins on high RTP slots, maximising your winning potential.
  • Reload Bonuses – Reload bonuses are reserved for existing players when they top up their accounts and are some of the rarer offers found at 25% of online slot sites. These bonuses provide extra funds or free spins for continued play on high RTP slots.

RTP and Jackpot Slots

Jackpot slots, particularly progressive ones, have unique RTP characteristics that set them apart from regular slots. Typically, these slots feature a lower base RTP because a portion of each bet contributes to the jackpot pool, slightly reducing the percentage allocated to regular payouts. Jackpot slots often exhibit higher volatility, meaning regular wins might be less frequent, but the possibility of hitting a substantial jackpot adds excitement and potential for huge payouts. Some jackpot slots offer fixed jackpots, making the RTP more predictable.

Understanding that the overall RTP includes the rare but significant jackpot win helps set realistic expectations. While jackpot slots may have a lower base RTP, the inclusion of the jackpot potential can make them highly appealing, especially for players chasing life-changing wins.

High RTP Slots vs Other Casino Games

When it comes to the vast and diverse world of online casino games, each type offers a different average RTP rate. You can check out the table below to learn more about each one.

Casino GameTypical RTP
High RTP Slots96%
Blackjack99%
Bacarrat98.9%
European Roulette97.3%
American Roulette94.7%
PokerVaries greatly

Best RTP Slots by Provider

Highest RTP Slots UK on Netent

When it comes to Netent slots, several games offer the highest Return to Player (RTP) percentages. These slots have gained popularity among players due to their high chances of winning. Here are some of the highest RTP online slots on Netent slot provider:

  • Jackpot 6000 – Known for its simplicity and high RTP of 98.80%, this game is a classic that appeals to both new and experienced players. This game features a super meter mode and a gamble feature, adding excitement to the gameplay.
  • Kings of Chicago – Combining the thrill of a slot machine with the strategy of a poker game and an RTP of 97.80%, this unique slot game features playing cards instead of traditional slot symbols, providing a refreshing and engaging experience. It can be a perfect high RTP slot game for any player that is eager to check out something new and unique.
  • Jack Hammer – This high RTP slot offers an above-average value of 96.96%. It is a comic book-themed slot game by NetEnt offering  unique “Sticky Wins” feature where winning combinations stay in place while the other reels re-spin.
  • Reel Rush – A fast-paced and exciting slot with a great RTP of 96.96%. It features a unique reel structure where the number of ways to win increases with each consecutive win, offering up to 3,125 paylines.
  • Simsalabim – With this fantasy-themed slot game, you can step into the world of a mysterious magician and be mesmerised by the enchanting gameplay. The game features a captivating bonus game where you choose from a selection of hats to uncover cash prizes, as well as an RTP of 97.50%

Highest RTP Slot Games on Microgaming

Microgaming is a renowned slot provider in the online casino industry, known for its wide range of high-quality slot games. When it comes to choosing a slot game to play, one important factor to consider is the Return to Player percentage. Here, we will explore some of the highest RTP slot games from Microgaming.

  •  Immortal Romance – For players who enjoy a touch of mystery and romance, this game can be an excellent choice, with an RTP of 96.86%. It offers an intriguing storyline with supernatural characters, immersive gameplay and multiple bonus features.
  • Thunderstruck II – A legendary slot game that can electrify your gaming experience, especially with its above-average RTP of 96.65%. With its Norse mythology theme and stunning graphics, it immerses players in a world of gods and thunderstorms, while also providing fun and exciting gameplay.
  • Avalon II – This is a fantastic high RTP slot game that is undeniably one of the more popular ones in Microgaming’s roster, with a great value of 97%. On top of that, you can enjoy a fantastic medieval fantastsy theme and visuals

Highest RTP Slot Games from Playtech

Playtech is a renowned software provider known for its high-quality slot games. When it comes to finding the highest RTP games from Playtech, players have several options to choose from:

  • Goblin’s Cave – This slot has an impressive RTP of 99.32%, making it a top choice for players looking for best RTP slot games. It features a unique three-reel layout with three paylines, offering an immersive experience with its goblin theme and extra features.
  • Ugga Bugga – With an RTP of 99.07%, this game offers you a great opportunity to win big. The slot has a tribal theme and features a multi-spin gameplay mechanic, allowing you to hold symbols and spin the remaining reels for a chance to create bigger and more rewarding winning combinations.
  • Great Blue – This game offers a great underwater adventure with a great RTP value of 96.03%. It may not be the highest RTP, but you can still enjoy a superb experience.

Slot Machines With Best Odds

Slot machine odds are oftentimes synonymous with RTP, but that is not always the case. We already explained that RTP shows the theoretical amount you can expect from a slot in return, but game odds show how likely it is for a slot machine to deliver wins during a game session. Even though they sound similar but focus on slightly different things, they are undeniably connected and related to each other.

Factors Affecting Slot Machine Odds

Several factors can influence the odds of winning on a slot machine, including:

  • RTP Percentage – Naturally, best slots RTP values also come with bigger and better odds. We always recommend looking for games that come with high RTP, which can minimise any drawbacks.
  • Variance – Variance determines the frequency of wins. This means that low volatility slots typically offer better odds for winning, albeit smaller in value. On the other hand, high volatility slots are prone to smaller odds in terms of frequency, but more significant in value.
  • Bonus Features – Some slot machines offer multipliers, free spins, and specific mechanicso that can improve the overall odds.

Types of Slot Machines with the Best Odds

Here are some types of slot machines known for offering better odds:

  • Classic Slots – Some classic slot machines with simple gameplay and fewer paylines may offer better odds due to their straightforward mechanics.
  • Progressive Jackpot Slots with Highest RTP – Some progressive jackpot slots have a high base RTP, which means that even without hitting the jackpot, you may have a better chance of winning compared to other slots. These progressive slots with highest RTP are even more appealing, considering the chance for a progressive jackpot win.
  • Skill-Based Slot Machines – Skill-based slot machines require player skill in addition to luck, and they often have better odds due to the influence of player decisions. But these are quite rare in online casinos.

Top 5 96% RTP Slots

Slot NameRTP
Big Bass Bonanza97.61%
Starburst96.10%
Fishin’ Frenzy96.12%
Tiki Island96.30%
Jackpot Gems96.10%

Top 5 97% RTP Slots

Slot NameRTP
Steam Tower97.04%
Reel Rush97.00%
Kings of Chicago97.80%
Quadruple Da Vinci Diamonds97.00%
Supernova97.05%

Top 5 98% RTP Slots

Slot NameRTP
Money Cart98.00%
Hero Clash98.10%
Jackpot 600098.88%
Tropic Reels98.95%
Triple Profits98.72%

Our Verdict on Best RTP Slots

In the world of online slots, RTP is a crucial factor for players seeking better odds of winning. Understanding what RTP is and how it works is an essential part of making the most of your online casino experience. We covered everything from how RTP is calculated to how it affects gameplay so you can make informed decisions about the highest RTP slots in the UK.

 Simona Boshkova

Written by Simona Boshkova

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FAQs

How do I choose the best paying slot game?

To choose the best paying slot game, consider factors such as its return-to-player (RTP) percentage, volatility level, bonus features offered, and personal preferences regarding themes and gameplay mechanics.

Can I trust the published RTP rates for slot games?

Published RTP rates for slot games are generally reliable, especially when provided by reputable game providers or licensed online casinos. However, it's essential to remember that RTP is calculated over a large number of spins and individual results may vary.