Paul Barber
Last updated: August 8, 2023

What Does RTP % Mean?

RTP is the abbreviation for Return to Player Percentage, which is the remunerations a player can expect to win from online slots and is a generally accepted guide to how a game will perform.  Usually, Return to Player (RTP) is the term that casinos and gambling sites use to describe the percentage of all the wagered money that an online slot or casino game will pay back to players over time. As an example. if you make a hundred £1 bets on a game that has a 96% RTP - you might expect to get back about £96 in wins. However, the keyword here is “theoretical” because this percentage doesn't apply to your own gaming session, it is a number calculated from millions of spins and bets. 

Furthermore, online slot games that contain bonus rounds and free spins tend to have variable RTP percentages, which increase during the bonus rounds, so that is worth looking into when choosing a slot with a high RTP. There are even slot games with buy-in bonus rounds, so you can skip the base play, moving to the bonus games immediately, which makes sense if the RTP is higher. The higher the RTP percentage, the better the payouts, so slots with RTPs of over 97% will shift the odds in your favour. 92% or less is low, up to 94% is average, and up to 96% is acceptable. Slot machines with an RTP of over 97% are considered excellent, and anything over 98% is phenomenal! 

Remember, a game’s RTP % doesn’t guarantee how much you will win in your specific gaming session because the percentage is calculated over millions of bets, spins or hands. What a games  RTP % can do is help you make an educated guess on what your gameplay experience might look like. Naturally, the higher the RTP % is, the better the odds are for you.

  • High RTP: A high RTP is anything at or above 98%
  • Medium RTP: A mid-range or average RTP is anything that falls between 95% and 97.99%
  • Low RTP: RTP values below 94.99% is considered low (though some progressive jackpots have a low RTP due to the large prize pool that's won intermittently)

Highest RTP % Slots For: October 2023

For experienced slot players, one of the most important things about a casino game is its RTP %. The Return to Player value can help players to gauge, approximately, how much they can expect to lose when playing a particular game and also how the game behaves. Remember the following RTP % brackets when choosing a new slot to pay, it will help you find out if the game has a low, average or high RTP %. To find a game's RTP,  simply look it up in the information/paytable section of the game. Some casinos have made it easy to look up a game's RTP on a dedicated page - often located in the footer of their website.

Wheel of Fortune Megaways
RTP: 96.46%
Royal Mint Megaways
Rainbow Riches Leprechauns Gold
Monopoly On The Money
RTP:94.1% - 98.1%

Ugga Bugga (Playtech) RTP: 99.07%

Ugga Bugga is a Playtech slot released in 2006 with an RTP percentage that increases to 99.07%, which is a pretty good deal. Ugga Bugga is situated in a jungle, filled with tropical fruits and tribal masks, categorising its reels and rows into two groups, each having three reels and five rows. Even though the slot only appears to have three reels, there are ten sets of three reels and a single payline through all of them, and the game also has its wild symbol and a bonus feature. It is one of Playtech's older games; however, it still comes with a vast RTP rate of 99.07%, making it one of the developer's very best and most appealing games. You can bet up to £100 per spin in the game, and it features colourful jungle-themed symbols to enjoy.

Ooh Aaah Dracula (Barcrest) RTP: 96%

Horror and comedy are unlikely bedfellows in this original online slot Ooh Aah Dracula by Barcrest. Its design is cartoonish, which should brighten your day. There are many payouts to sink your teeth into and brilliant bonus games that you'll undoubtedly want more than one bite of, including three different rounds of Free Spins Bonuses, a Graveyard Bonus, and a Super Graveyard Bonus. There are 16 different ways to bet per spin, and the range will suit all slot players. There's also a high-roller button, whilst you can enjoy a bit of vampire hunting via all your latest mobile devices, whether they use iOS or Android software.

Monopoly: Mega Jackpots (IGT) RTP: 98.14% 

Monopoly is the best board game ever to exist, and IGT has united it with a Mega Jackpots slot offering. It comes with an RTP percentage of 98.14%, and there are nine paylines to place your wagers and five reels in play. The graphics are relatively straightforward, as it's one of the older games on this list. However, it does contain a progressive jackpot, a Pass Go bonus and a Chance Win-Spin feature. It’s a Mega Jackpot game where you can win one of the biggest progressive jackpot payouts on offer with an online video slot. 

The prize pool often reaches £2 million, and the more people that play the slot machine, the higher the jackpot prize rises. All you should do is line up five Mega Jackpots symbols to win a life-changing cash prize. The top jackpot can award you 2,500 coins during the base game, which is nothing to scorn at, and you can bet one coin per payline. The online slot does an excellent job of recreating the fun of the Monopoly with fast-paced online slots action. The bonus rounds play and feel like a board game rather than a slot machine, especially regarding the features. You can activate two bonus rounds in the progressive game, the Pass “GO” Bonus feature and the Win Spin Bonus.

Joker Strike (Quickspin) RTP: 98.11%

Joker Strike is a five-reel game with ten paylines and a generous 96.46% RTP that raises to 98.11% thanks to a special 'hi roller' mode. As with most slots containing the word Joker in the title, this offering by Quickspin is retro through and through. You can expect to see classic symbols such as stars, bells and lucky sevens on the reels. 

The Joker is by far the most valuable symbol, and if he appears five times, you can win a prize of 100x your stake. A standard 'replace all other symbols' wild is also included and pays out 30x. To win, you have to match three characters, and you'll activate the Joker Strike feature. The winning symbol illuminates a frame surrounding the primary reel. A moving light then moves around the edge, and if it rests on the winning character, you achieve a winning strike and replace the symbol multiple times, and a payout follows.

Book of 99 (Relax Gaming) RTP: 99%

Book of 99 is a slot machine by Relax Gaming and comes with five reels and ten paylines. The game has an ancient Greek theme; however, it's all about the Free Spins feature, which begins with ten free spins. A special expanding symbol comes into play, and expanding symbols appear in non-adjacent positions to give you winning payouts. With unlimited retrigger chances and 5,000x your stake winnings, you also collect wilds in the base game to trigger the free spins. More importantly, the Book of 99 RTP payout percentage is 99%, which is the highest return rate currently available anywhere.

1429 Uncharted Seas (Thunderkick) RTP: 98.60% 

1249 Uncharted Seas is an extraordinary historical slot by Thunderkick with a theoretical RTP payout of 99%. Across the map of 1429 Uncharted Seas slots by Thunderkick, you'll find 5-reels and 25 paylines. The standard game symbols include the sun, the moon and the stars. There's a purple sea creature, an ancient lobster creature, a Wild octopus, a green sea creature and a pretty mermaid. The compass shows you the way, and the Scatter symbol gives you up to 50 free spins. 

The sailing ship is the Wild, and whenever it sails into view on the second to fourth reels, it transforms other icons into Wilds. Roll up the Wild, and it will expand across an entire reel as the sea serpent lifts your ship out of the ocean. You can sail on 1429 Uncharted Seas by using a coin from your treasure chest. For the brave seafarers, the betting goes up extensively per payline so that you can reap the rewards of the dangerous seas. 

Bloodsuckers (Netent) RTP: 98%

Bloodsuckers is an exciting online slot by NetEnt launched in 2013 with five reels and 25 pay lines. Blood Suckers is a non-progressive slot with a cult of vampires theme. The bonus symbols are the Sledgehammer and Bloody Bat. If you manage to gain three or more of these, you trigger the Bonus round. Once the bonus game activates, you move to the burial chamber full of coffins. At that stage, you will have to open each coffin and slay all the vampires. 

You gain a coin winning payout for each vampire that you kill, and the bonus round ends once the bats all fly out of their coffins. The Scatter icon is the vampire bride symbol, and if you can land three of them anywhere across your reel grid, the Free Spins feature starts, and you receive ten free spins. All the wins during the round come with a 3x multiplier.

Rainbow Riches Pick and Mix (Barcrest) RTP: 98%

This famous pub slot machine made a seamless transition to the world of online casinos. It was so successful it spawned several popular spin-offs and sequels. They include Rainbow Riches Pick' n' Mix, which has a much higher RTP payout percentage of 98%. Rainbow Riches Pick' N' Mix is a five-reel slot with three rows and twenty fixed paylines; the game's design is similar to the original with gold-framed reels in front of a green and pleasant Irish landscape although the mountains in the distance look impressive. In terms of graphics and game symbols, the design looks familiar. 

The visuals are slightly different; however, the icons depicted as the game logo and playing card symbols nine to ace. You will notice Wild does not payout, and the highest paying symbol is the Rainbow Riches game logo that can award you 500 coins for a five of a kind on the reels. Rainbow Riches Pick n Mix slot has 5-reels and 20 fixed paylines. Before you start spinning the reels, all you have to do is set your stakes by choosing a bet per payline that can be anywhere from £0.20 to £500 a spin. We've done a whole section about Rainbow Riches slot for further reading if you're interested.

Jokerizer (Yggdrasil Gaming) RTP: 98%

Jokerizer is a stunning, graphic-rich 3D slots game from Yggdrasil Gaming. The game features 5-reels and ten paylines and is among the first online slots from Yggdrasil Gaming. Jokerizer is a non-progressive slot with no free spins; however, you can enjoy entertaining and straightforward reel-spinning action with stunning graphic surroundings. The game offers a series of bonuses, and the Joker is the main symbol of this classic 3D video slot game. Some of the perks you will love include Jokerizer mode, mystery wins, and prizes totalling up to 6,000 coins. 

Mega Joker (Netent) RTP: 99.00% 

Another Netent release, Mega Joker, has an incredible RTP percentage of 99%! When you play with maximum bet limits, your winnings move to the Supermeter, and you can choose whether to save them by pressing the Collect button, or you can keep playing by pressing the Spin button. Mega Joker is a splendid 3-reel slot with two reel sets. One is for regular play, while the other is for the Supermeter mode. For one coin bet, the RTP is somewhat low at 76.9%; however, with the maximum bet, the RTP percentage increases according to how well the Supermeter mode performs, rising to 99%. Netent has come up with a classic slot design also available on mobile. Mega Joker's simplicity is a welcome break from the overcomplexity of more elaborate online video slots

Jackpot 6000 (Netent) RTP: 98.86% 

Jackpot 6000 is one of Netent's most popular slots with an exciting classic with a retro vibe. The high RTP of 98.9% during the Supermeter mode is where you can impact the game's outcome. Jackpot 6000 is a traditional-looking game that continues its retro theme with classic symbols. You'll encounter lemons, cherries and bells, along with a joker and a star icon. Jackpot 6000 has 3-reels paying over five paylines. The coin values range is £0.01 to £2, with a minimum bet of £0.10 to a maximum of £10 per spin. 

To enjoy the features such as the Supermeter, you should play at the maximum bet level. While not having a progressive jackpot prize, the slot offers you a chance to win 6000 coins. During the base game and the Supermeter round, you can double your winnings by accessing the Heads or Tails bonus feature. To the left, there is a selection of coins with a head or a maple leaf. Make your choice by using the selection buttons to the side and see your winnings grow if the one you choose lights up.

More High RTP % Slots & Where You Can Play Them

Online SlotRTP % Software ProviderPlay At
Beauty and the Beast97.10%YggdrasilLove Casino
Lucky Little Gods97%Microgaming Jackpot Village
Kings of Chicago97.80% NetEnt Temple Nile Casino
Devil’s Delight97.60% NetEntDream Vegas
Sushi Bar97.50%Betsoft Casushi
Simsalabim97.50%NetEntRace Casino
Retro Reels Extreme Heat97.50%MicrogamingHotstreak
Esqueleto Explosivo97.60% Thunderkick Lottomart
The Catfather98.10%Pragmatic PlayPlaza Royal
Jack Hammer 297.10%NetentLove Casino

Top UK Casino Sites To Play Slots With The Highest RTP?

Players are, naturally, always after the best value for money. There are a handful of quality slot titles from respectable, imaginative game studios that cover a range of themes, in all shapes and sizes that each boast a high RTP that's more bounteous for the player. Finding the best RTP slots to play can be a hurdle but that's where our expertise comes in.  We have gone to great efforts to highlight the best RTP % slots on this page and which casino sites have them to play for real money. 

As always, our casino and gambling sites recommendations are only for trusted and dependable gambling sites that are each licensed by the UKGC, offer fair bonus terms, tons of banking options, a world-class support department and fast withdrawal times. Check each casino above and compare them to suit your preferences. You'll be able to find a nifty new casino that offers a great welcome bonus and plenty of high RTP % slots for you to try out in no time at all!

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Highest RTP% Slots FAQ

In case you're left wondering more about the highest RTP  slots online, our FAQ's dig a little deeper into many of the commonly asked questions about slot games with the highest RTP. These are questions many casino players like you are asking, so you're not the only one!

    What Is A Slots RTP %?

    Understanding the basics of how a slot works is fundamental. There's more to it than picking a pretty game or a theme that you like. 'RTP' stands for Return to Player, which is the number of wins divided by the amount wagered from your play. The closer games RTP  is to 100%, the more you’ll win back - in theory. Make sure you don't confuse this with your game session. This percentage is played out over millions of spins or hands of a game. Do note that it doesn't mean you'll get that % back in your game session. RTP can also be identified as a payout ratio. You’ll frequently hear about the best payout slots like those on this page. This refers to the slots with the highest RTP % which are the ones you want to aim for.

    What's The Difference Between RTP & Slots Variance?

    How Can I Find A Slots RTP %

    What Slots Have The Best RTP %?

    Why Should I Play The Highest RTP % Slots?

    What Does 'House Edge' Mean?


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