High RTP Slot Games

This is The Slot Buzz list of the 10 best high RTP slot games currently available at UK slot sites. These slot games pay out at around 98% RTP or higher. That means over time you are likely to get more bang for your buck, more money back on each £1 you wager, and longer playing sessions with your balance. To play these online slots with the best odds, choose from our list of the top 10 highest RTP slots.

10 Best Slots With High RTP

1. 1429 Unchartered Seas (98.6% RTP)

1429 Unchartered Seas by Thunderkick
1429 Unchartered Seas by Thunderkick

A hugely popular slot game, 1429 Uncharted Seas comes from one of our favourite slot studios, Thunderkick. It’s one of their early releases and displays their best attributes – awesome graphics and an original theme. This particular slot is a low variance game with a 98.6% RTP, which makes it one of a handful of slots with the highest RTP ever made, and one that you can play for hours with a relatively small balance as it will continue to pay out regularly. The slot providers made sure to provide plenty of bonus features for a superior slot experience. You can score up to 100 free spins and land expanding wilds too. 1429 Uncharted Seas also features a bonus game! This particular slot game is definitely one of the best out there – be sure to try it out!

Play at Casumo Casino

2. Joker Strike (98.11% RTP)

joker strike slot image

Having the last laugh is the way to halt the mischievous prankster in Joker Strike. Slot provider, QuickSpin, reveals new excitement levels by stepping up winnings by introducing the new hi-roller mode. The larger the bet, the bigger the payout, wager £20 and you’re guaranteed a wild for five spins. Bet £30 and wilds appear on spins and the outer wheel, or you can use your bonus money from a deposit bonus to place an ever larger bet. A stake of £50 gets you additional strikes, wilds, and an extra marker when you spin the outer wheel both ways. Perfect for slots players who thrive playing a high volatility slot, the theoretical RTP of 98.11%, and an incredible range of features lead the way to a max win of 1,211x.

Play at Casumo Casino


money cart slot image

Relax Gaming joins slot providers creating the best slots with an above-average payout and RTP percentage in the Money Cart. In fact, joining the rootin’-tootin’ bunch of outlaws places slots players on a path to win 20,000. Slot reviews praise Money Cart as one of the best online slots, not only for what the game pays but more for the game’s RTP of 98%. Reuniting players with big fans of Money Train, the adrenaline-filled saga removes itself completely from the lower RTP paid by a low volatility slot or below-average slot’s RTP offered by land-based slots. Available at most online casinos, this particular slot by Relax Gaming ranks amongst slots with the highest payouts and theoretical RTP percentages.

Play at Casumo Casino

4. Ugga Bugga (99% RTP)

Ugga Bugga Slot
Ugga Bugga Slot

This is a mesmerising high slot RTP with 10 reels that spin independently of one another. It was designed by Playtech and given an extremely high 99% RTP. It has an unusual feature for online slots where players can Hold symbols for a spin. There are also wilds in the mix, free spins, and a top payout of 10,000x. One of the best RTP slots out there and can be played at the online casinos mentioned in this guide.

Play at Casumo Casino

6. Bloodsuckers (98% RTP)

bloodsuckers slot

Bloodsuckers stands out when it comes to particularly well-designed gaming machines, the best low-variance slot games and tops the list of the highest slot RTP percentages. Bloodsuckers slot machine is one of the casino games excluded from wagering at most online casinos along with huge jackpots, like the Mega Joker progressive jackpot slot and other titles with an extremely high RTP percentage. As one of the best RTP slot machines featuring incredible bonus features, Bloodsuckers offers a maximum win of 1,014.6x.

Play at Casumo Casino

5. Blood Suckers II (98% RTP)

Bloodsuckers 2 slot
Bloodsuckers 2 slot

This infamous vampire-themed slot from NetEnt remains an absolute classic despite coming out back in 2013. It’s famous for its excellent graphics, mix of wilds, big free spins round with 30 free plays and of course its amazing 98% RTP. Ghoulish fun indeed!

6. Kings of Chicago (97.8% RTP)

Chicago Kings Slot
Chicago Kings Slot

This gangster-themed slot from NetEnt mixes poker and slots to create a unique game format with a very nice 97.8% RTP. There are 5 reels and 3 rows to the game, but instead of standard symbols, each position on the reels is occupied by a playing card. The object is to form poker hands on the paylines, from three of a kind up to a Royal Flush. It’s a clever slot and even comes with the chance to land up to 30 free spins (or hands). Play at an online casino in our top 10 list.

Play at Casumo Casino

7. Jackpot 6,000 (Up to 99% RTP)

Jackpot 6000 slot
Jackpot 6000 slot

Yet another NetEnt slot finds its way into our list of the best high RTP slots. Jackpot 6,000 is a very simple game with just 3 reels, 3 rows and 5 paylines. The symbols are classic fruits, bells, stars and jokers. The latter is the big paying symbol at 6,000x for 3 on a payline! Worth a spin, particularly in the ‘Touch’ mobile version.

Play at Casumo Casino

8. Jack Hammer 2 (97.1% RTP)

Jack Hammer 2 Slot
Jack Hammer 2 Slot

This is the second in the series of comic book Private Investigator Jack Hammer slots from NetEnt. The narrative of the slot has Jack rescuing a damsel in distress as you attempt to win big on the reels. There are a massive amount of paylines (99 to be exact) and the game comes with free spins or bonus spins and wilds and a super-high 97.1% RTP.

Play at Casumo Casino

9. Jokerizer (98% RTP)

Jokerizer Slot
Jokerizer Slot

A 5 reel, 10 payline slot from Yggdrasil that uses lots of classic video slot styling, with fruits and jokers on the reels. The main feature of the game is the chance to risk your wins for a play on the Jokerize reels where there are more joker symbols to drive more wins, but each spin costs you from your winnings. The max win on this slot is 6,000x.

Play at Casumo Casino

10. Goblin’s Cave (Up to 99.32% RTP)

Goblin's Cave Slot
Goblin’s Cave Slot

Another high RTP game from Playtech slots is Goblin’s Cave. It has a simple 3×3 reel set with 3 paylines. Sounds boring? Not really when you consider that it has a top payout of 150x for 3 wilds on a payline and a pick-me treasure chest bonus round that comes when you land 3 lanterns on the reels. This game also allows you to Hold symbols like a traditional fruit machine, meaning the player can improve their chances of winning if they play right. Comes with free spins and a thrilling bonus game. Play slots like Goblin’s Cave from our top 10 list.

Play at Casumo Casino

There you have it. Our top 10 list of highest paying online slots for UK online casinos and players. If you sign up and create an account with Casumo Casino today, you will be able to enjoy the best payout slots with a lucrative welcome bonus and other casino bonuses under your belt. Play the highest RTP online slot games today at Casumo Casino!

Other online slots with high RTP, bonus games, and a free spins bonus worth trying …

  • Couch Potato
  • Ooh Aah Dracula
  • Zombies
  • Neptune’s Kingdom
  • Funky Monkey
  • Book of Dead

What Is Slot RTP?

RTP refers to the (theoretical) return to player that a slot game is programmed to pay out over time. It is measured as a percentage of the money wagered on the slot machine. A typical slot will operate at an RTP of around 96%. That means, for every £100 wagered on the game, £96 will be paid out in prizes and £4 retained by the casino operator (an amount referred to as the house edge).

It is important to remember that RTP is a theoretical value. It is not absolute and will vary from one session to another. If it didn’t, gambling on a slot would be very predictable, and no one would play as they would always lose! The RTP will vary as some players will win back much more than 96% of their money whilst others will win back much less. But overall, over millions of spins, the game should hit its programmed RTP value.

Should I Play High RTP Slots?

RTP is one of three factors that determine the payout pattern of a slot game. The others are variance and top payout potential. A game with a high RTP is likely to return more of your money than a low RTP game, but this figure does not tell you everything you need to know to understand the maths of the game and whether it is the right slot for you.

Variance is also important because it will tell you how far from the RTP a game will deviate in its payout pattern. Low variance slots do not vary much in their pattern so you can expect to win roughly the advertised RTP in each session. High variance slots vary greatly and their unpredictability makes them high risk. A 96% RTP high variance slot may give one player astronomical wins in a short period, whilst another player may lose all their money very quickly.

Payout potential is also important because it tells you the maximum amount you can win in one spin, regardless of the RTP or the variance of the game.

So, to answer the question, RTP is a good indicator of the style of slot you are playing, and playing high RTP slots will give you more money back on your stakes. But keep in mind that variance and payout potential will also affect your experience too.

Best Payout Slot Games in the UK

Playing slots with high RTP rates is a useful strategy, not only for new customers but also for seasoned UK players of online casinos. They generally have a lot of exciting features to allow for win multipliers, matching symbols, wild symbols, expanding symbols or a mystery prize that can all happen at completely random times allowing for huge wins for lucky players depending on the slot. Generally speaking, these higher hit frequency games have more ways to win and high payouts on high volatility slots with some of the biggest wins in casinos.

The higher the RTP the better and the best value slots with more ways to win will give a greater return to player rate and so they are highly recommended. Some top picks for the best payout slot with the highest RTP rates are Book of 99 with a whopping 99% RTP, Blood Suckers, Starmania, Zeus Lightning and the White Rabbit slot with the White Rabbit Megaways feature which is a great win feature that increases chances for players to win and get a great payout.

These high payout slots are great options to play high RTP games for veteran and new players that are great fun!

How to find the Best casino with High RTP Slots

Gambling connoisseurs are not only experts in the arts of betting and gambling but never underestimate the importance of playing at UK Gambling Commission-approved online casinos. Years of experience, an appreciation for gambling, and a solid knowledge base define techniques used in finding the best casino with high RTP slots.

Experienced gamblers stick to UK casinos, they’re in it to win it and therefore where they play matters most. Newer online casinos use numerous strategies to compete with established sites, as with most areas, high payout rates are an area where UK online casinos outperform the rest. TheSlotBuzz guides you and shares tips on how to identify the best RTP casinos in the UK.

Slot Game Developers

Once you understand return-to-player percentages and how important it is in maximising winning potential, the way you choose online slot games changes. Instead of considering the graphics, theme, or bonus features first, the online slots payout percentage takes priority. Although, the highest RTP slot machine often offers the best free spins feature, bonus symbols, and max win.

The Slot Buzz best RTP slots list probably already influenced the way you see different slot game developers. Once UK players memorised the titles of slots with the highest RTP, UK online casinos featuring Thunderkick, NetEnt, NextGen, Yggdrasil and Playtech slots have a special attraction.

Bonuses and Promotions

Discovering the best payout slots ignites a new eagerness to maximise your chances of winning. The best way to increase your bankroll remains online casino offers such as a no deposit bonus, high percentage match welcome bonuses, free spin bonus, or any bonus focused on slots.

Read the terms and conditions it is vital in making the most of playing slots with a high RTP via casino bonuses. Pay special attention to the min deposit to activate the bonus, max bet, withdrawal caps, wagering requirements and whether only bonus funds contribute, and bonus expiry. Take into consideration game weightings and read the list of games excluded from contributing towards wagering requirements.

Winnings Payout Speeds

Payout speeds matter even more once you filter through online casinos featuring the highest RTP slots. Payment processing efficiency and withdrawal methods ensure fast access to winnings accumulated via playing high RTP slots. You want the max win and you want it paid out fast.

Where Can I Play High RTP Online Slots in the UK?

There are plenty of high RTP slot sites available to play for UK customers. All the online UK casino sites mentioned here at The Slot Buzz are properly regulated and licensed by top regulatory bodies in the iGaming industry like the UK Gambling Commission and the Malta Gaming Authority.

Some of these sites where you can play high RTP video slots include Spinyoo, Casushi, Duelz, King Casino, Fruit Kings, Jonny Jackpot, Casino Casino, Kassu, Casino Lab, and Voodoo Dreams – to name a few.

All of these slot sites plus exclusive new slot sites can be accessed through theslotbuzz.com and each casino offers fantastic welcome bonuses for new UK players with the possibility of huge cash prizes! Play high RTP games at any of these online casinos right now where you can claim a casino bonus and win cash prizes today!

Best High RTP Casinos in the UK

TheSlotBuzz uses the same filtering process to select the best high RTP casinos, best online slot sites, or best Slingo sites. The difference is a reshuffle in the order of importance in terms of specific requirements, a shift in preference possible by adjusting the focus point.

The best high RTP casinos in the UK entertain via the best selection of the highest RTP slots by the finest slot game providers. Exceptional bonus deals and special offers come with reasonable terms and conditions, while swift withdrawal processing via trustworthy methods seals the deal. The three best casinos for top RTP slots are simply remarkable regardless of the order of importance.

Casumo Casino

Topping the list of best UK payout casino sites with an overall 97.27% payout percentage. Casumo is a multi-award online and mobile casino offering high RTP slot enthusiasts an incredible selection of over 2,000 slots. The huge variety includes slots by the best software developers including NetEnt, Thunderkick, NextGen Gaming, Microgaming, and Push Gaming.


High RTP Online Casino Slots

The most popular and highest RTP slots include 1429 Uncharted Seas, Mega Joker, Kings of Chicago, Jack Hammer 2, and Goblin’s Cave. Casumo never fails to impress experienced players focussed on slot RTPs, slot titles at the casino offer an average RTP of above 96%. Progressive jackpot slots include Mega Fortune, Megah Moolah, and Mega Fortune Dreams. New games added constantly include high variance slots, low variance slots, and high RTP slots, which provide players with an extraordinary number of slot machines catering to every preference.

Benefits Of Playing at a High RTP Video Slot Casino

Apart from the huge variety of games, Casumo Casino is the best UK casino for high RTP slot players due to superfast payouts. Plus, 24/7 customer services, exciting promotions, and brilliant loyalty rewards are offered in a responsible gambling environment guaranteeing privacy, security and fair gaming. Players can download the free Casumo Mobile app from the Apple Appstore and Google Play to enjoy instant access to top-class entertainment.

Dream Vegas Casino

Dream Vegas is a White Hat Gaming casino that places itself high on the list of best payouts UK online casinos with a 97.00% payout rate. Powered by over a hundred providers, which ensures a huge number of newly slots added regularly. Some of the top RTP-minded developers include NetEnt, Relax Gaming, Blueprint Gaming, and Microgaming.


Enjoy the Highest RTP Slots at Dream Vegas Casino

The highest RTP slots include top 10’s such as 1429 Uncharted Seas, and Bloodsuckers, plus several others, Cosmic Reels 98.03%, Flippin Rich 97.47%, Lion Thunder 97.99%, Cash or Crash 99.59%, and Book of Ra 99.00%. The extensive range of slots includes classic slots, video slots, and progressive jackpots. The game RTP section offers instant access to the RTP of all games available at Dream Vegas.

Membership Benefits At Dream Vegas Casino

Dream Vegas is one of the most popular online hotspots for players from the UK offering a phenomenal collection of high RTP slots and 24/7 customer support. The wide range of payment methods ensures quick and makes it easy to deposit and take advantage of exceptional bonuses. Withdrawals take less than 24 hours and the casino offers safe and secure services approved by the UK Gambling Commission and eCogra.

Play OJO

Play OJO is an online and mobile player favourite due to its no withdrawal restrictions, no wagering requirements, and no maximum win policies. It may come as a big surprise that this all-bonus-wins paid in cash casino is also best for players in search of the highest RTP slots. Operated by Skill On Net Ltd, the Play OJO gaming library features the best by Yggdrasil, NetEnt, ELK Studios, Big Time Gaming, Thunderkick, and Red Tiger Gaming.


Play Slots with the Highest RTP at Play OJO

The best RTP slots at PlayOJO include 1429 Uncharted Seas 98.50%, Mystery Reels Megaways 98.06%, Starmania 97.87%, Black Knight 97.75%, Rainbow Riches Leprechauns Gold 97.75%, Pearl of the Caribbean 97.75%, Big Bad Wolf 97.34%, Golden 97.22%, Gorilla Go Wilder 97.11%, and Jack Hammer 2 with a 97.07% RTP. Constantly increasing the variety of choices available to members, several exclusive games such as Play OJO Branded Megaways™, ensure an experience unlike any other.

Play OJO Membership Benefits

Play OJO offers a fair and safe gambling experience to all players, and a wide range of banking methods including PayPal, PaysafeCard, and Trustly ensure quick depositing and fast withdrawing. Members are guaranteed a great online experience via added extras such as the OJO plus lifetime rewards, OJO wheel, prize twister and levelling up.


Editor-in-Chief: Liam Goodwin

Liam is a veteran in the online slots industry, on both sides of the reels. As Editor-in-Chief of The Slot Buzz, he puts his iGaming passion into every article. In his own words "finding reputable online slot sites can be difficult at the best of times, I want to ensure players can uncover the most trusted sites and top-rated games with ease."

Senior iGaming Content Specialist: Wilna van Wyk

Over the past 7 years as a senior iGaming content specialist, Wilna has accumulated a wealth of knowledge within the industry. Wilna’s enthusiasm for online slots shines through every article while her ability to research is above and beyond the max payout of an online casino.

Frequently Asked Questions (FAQ’s)

What is considered a high RTP slot game?

A slot is considered to be of above-average RTP or high RTP if the RTP is ≥ 97%

What are the benefits of playing high RTP slots?

There are plenty of benefits if you decide to play high RTP slots. A high RTP game is likely to return more of your money than a low RTP game, which is a definite plus! However, it's important to know that variance and payout potential will also affect your earning potential.

Where can I find high RTP slots?

Find all the top online casinos with the highest RTP slots on theslotbuzz.com, or from our article here.

What are the best RTP slots out there?

Some of our favourite high RTP online slot machines our mentioned in this article. However, some other titles include: Wild Flower (Big Time Gaming), Dinopolis (Push Gaming), Zeus Lightning: Power Reels (Red Tiger Gaming), Money Train 2 (Relax Gaming) - to name a few.