Best slots sites in the UK 2023
Below, our experts have put together a comprehensive list of the highest RTP slots 2023 providers in the UK. And every site we list has been thoroughly vetted and reviewed by our team of experienced reviewers.
So, not only do you get the best high RTP slots in the UK. But each one of the sites we list also offers players a top-notch experience. From the slickest easy-to-use websites and top games selection, to the most convenient ways to pay and 5-star customer service, these sites are nothing short of elite.
Finally, all the sites we work with offer customers incredible mobile experiences, too. So, if you’re someone who likes to game on the go, then you’ll find the best mobile-optimised sites and dedicated apps right here, at one of our trusted and reviewed slot sites.
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What is RTP (Return To Player)?
At this point, you might be wondering: what is RTP in slots? In short, the RTP meaning is ‘return to player’. And it’s the percentage of your stake that the slot site and/or game provider predicts you’ll get back if you play one slot title for an extended period of time.
For example, if you put down £100 at the beginning of your session, and you see that a game has an RTP of 50%, then that means that should see back £50 out of that £100, if you play the game for long enough.
Luckily, slot games generally have a much higher RTP than 50%! And the average RTP for a slot is around 96%. So, if we look at the previous example again, this means you should get back £96 out of your original £100.
In summary, some of the best winning slots on the market come with a greater RTP. Because, generally, they pay out more frequently. And are considered a lot more generous than other titles on the market.
What’s considered high RTP?
The first thing to mention here is that all casino games have an RTP. Not just slots. And the highest RTP games are usually classic table games, like blackjack and roulette. Which, depending on the version you play, can see players get back over 99% of their stake.
So, with the slots best RTP titles coming in at around the same percentage, some of the slots we’ve listed here today compare to the top RTP games on the market. But, aside from these top games, other slots also offer a good RTP rate as well.
As said, the average RTP for a slot game is around 96%. So, anything above that is considered high for a slot title.
Best NetEnt slots by RTP
When it comes to which slot machines pay the best, a lot of people turn to gaming giant, NetEnt. This Swedish software developer is one of the biggest slot providers on the planet.
So, let’s take a look at some of their best payout online slots that you can play today.
Mega Joker (99% RTP)
As you can see, Mega Joker is one of the best payout slots on the market, coming in at a whopping 99%. And it also happens to be an all-round awesome game to play!
This classic fruit machine is an homage to the popular one-armed bandits that litter the casino halls in places like Las Vegas and Atlantic City. And we particularly like the old-school graphics and sound effects. Plus, unlike most other fruities, this one actually presents you with the entire machine. And even has some flock wallpaper and plants in the background. Making it really feel like you’re in a land-based establishment.
Additionally, with the traditional 3 reel, 3 row format, and just 5 paylines, this game will appeal to the traditionalists who love the retro fruit machines. Finally, with one of the best slots RTP percentages and high volatility, this NetEnt title is one of the best payout casino games on the market.
Jackpot 6000 (98.86% RTP)
Another fruit machine-inspired game. Jackpot 6000, much like Mega Joker, has taken the traditional elements of these classic machines and given them a digital face-lift.
Following the 3 reel, 3 row format, this game offers simple gameplay. And it doesn’t come with a lot of the trappings that we’ve come to expect from our slot games in recent years. But don’t let that put you off! There’s still a great time to be had on Jackpot 6000.
Plus, with an extra bonus game, a super high RTP and a top prize of 6,000x, there’s more than enough here to keep you entertained for an evening of slots enjoyment.
Blood Suckers (98% RTP)
One the best RTP slots out at the moment is the ghoulishly fun Blood Suckers! From the name, you can probably guess what the theme of this game is. And this blood-thirsty title doesn’t fail to deliver on its promise of vampires and creatures of the night.
One thing we really love about this game is that it doesn’t take itself too seriously. And it has some incredible attention to detail. From the typical garlic, crucifixes and bloody wooden stakes, to the Victorian vampires, sultry seductresses and evil-eyed goblins, Blood Suckers is a masterclass on how to do the vampire genre right.
Furthermore, the bonus game is awesome. Open the coffins to find a prize. And use your stake to pierce the hearts of any blood suckers that stand in your way.
Finally, with a great RTP, low volatility and a top prize of 900x, this game is one of our absolute favourites.
Best Microgaming Slots by RTP
Founded in 1994, Microgaming were providing casino games long before most of its competitors. And they continue to lead the pack when it comes to developing some of the most cutting-edge games on Earth.
So, with that in mind, let’s take a look at some of the highest RTP casino slot machines from Microgaming.
Couch Potato (97.43% RTP)
If you want to land a load of money with the least amount of effort, then Couch Potato is the best payout slots game for you!
The aim of this game is to pretty much do as little as possible. And the cute and funny potato character himself will join you on the couch, as you lounge your way to victory.
This title is perfect for those who like their games straightforward. And the classic fruit machine symbols and 3 reel format will suit the minimalists out there. Plus, with just 1 payline, this game is ideal for slots beginners as well.
Finally, even though this game doesn’t have any extras, like bonus games or free spins, there are still tons of chances to scoop its 15,000x jackpot. And Couch Potato is full of wild symbols and pays out regularly. So, it’s possible to land a big win without even getting off your backside!
Classic 243 (97% RTP)
Take an adventure to outer space now, with Classic 243. This incredibly futuristic slot is full of sparkling gems and top-notch graphics. And it reminds us a lot of the popular Starburst RTP game.
With crisp animations and computer-style sound effects, Classic 243 is a visual masterpiece. Plus, with it’s top RTP, tons of bonus features and a massive 243 ways to win, this is one space voyage you’re going to want to be on!
Frozen Diamonds (97% RTP)
Wrap up warm now, as you take on sub-zero conditions in Frozen Diamonds. This ice-cold game is bright, magical and set in an Arctic cave somewhere where you’ll need a scarf! And all the colourful and vibrant symbols are frozen in ice blocks, just waiting for you to smash your way through and grab them.
Along with its sleek graphics and fun theme, this game boasts one of the most epic film score-like soundtracks. And the free spins round is fast-paced and exhilarating; which will warm you up in no time.
Not to mention, not only does this game have one of the best RTP slots percentages around, it also comes with wilds, respins, 20 paylines and a cool jackpot of 1,000x.
Best Playtech slots by RTP
Now we move onto another software brand that produces some of the best slot machines to play: Playtech.
This global games maker has been blazing the trail of casino titles since 1999. And they’re responsible for a lot of the best payout slots that we’ve seen over the last 2 decades.
So, let’s take a closer look at some of our top Playtech picks that are available to play right now.
Goblins Cave (99.32% RTP)
A sweet and quirky game, Goblins Cave is a medieval-looking fantasy adventure. Usually, goblins are the baddies in most fairy tales. But not in this one. The central character is a friendly gent, with reading classes and slippers. So he’s about as threatening as Santa Clause! And this kind and gentle creature is here to help you find hidden treasure; and lots of it.
Plus, with scatters, wild and multipliers thrown in, this game is more exciting than it might seem at first glance. And it’s suitable for both high and low bettors, with min and max bets at £0.02 and £20, respectively.
Furthermore, this game comes with some cool extras, such as an auto-spin option. So, sit down and get cozy with this fun and friendly neighbourhood goblin!
Ugga Bugga (99.07% RTP)
Join us on an adventure through the jungle, with Ugga Bugga. This slot proved to be tremendously popular upon release, due to its unusual gameplay and great prizes.
Technically, this game has 3 reels. But, actually, there are 2 sets of 3 reels, so it’s like you’re playing 2 games at once. With lots of fun African symbolism, and tribal-sounding effects, this is certainly one of the more unusual slot games out there. But its fun, fast-paced atmosphere and extra features make this game a joy to play. And punters can look forward to a juicy jackpot of upto 5,000x.
Tropic Reels (98.95% RTP)
A fruit machine game with a tropical twist, Tropical Reels combines a classic fruit machine format with some exotic flavours.
The graphics on this game aren’t as crisp as some other titles out there. But the symbols are still beautiful and colourful. And the tropical birds and fruit bring a wonderfully authentic vibe to this gorgeous slot.
Here at Gamble.xyz, we love an out-of-the-ordinary slot. And Tropic Reels is definitely something new to the slot gaming world. We love the fruit machine style that’s been jazzed up with more exotic symbols. And with wilds and multipliers appearing (which is uncommon for a fruit machine), this title has us wanting a taste of something a little more zesty!
Best Yggdrasil slots by RTP
While not as well-seasoned as NetEnt, Microgaming or Playtech, Yggdrasil has accomplished a lot in the last 8 years. Established in 2013, this strangely-named company has gone all in when it comes to slots gaming. And this incredible enterprise is now home to some of the slickest games on the market.
So, let’s check out some of the best paying slot games from Yggdrasil.
Tut’s Twister (97.10% RTP)
If there’s one thing that Yggdrasil’s best payout slots are known for, it’s their graphics. And Tut’s Twister is the perfect example of how this young company always brings their A-game. This Ancient Egyptian slot is bursting with beautiful Egyptian imagery and the most stunning 3D graphics. Plus, it has a bit of a horror-movie feel, with dark, gloomy tombs and scary mummies popping up from the side of the screen.
Also, this game offers players 5 reels and an unusual 4 rows, which generate a very generous 25 payines. Plus, it comes with a bunch of special features. Including walking wilds, multipliers and a mysterious bonus game.
Finally, the Tut’s Twister feature presents a fun addition, where reel 4 turns into a cyclone of sand and gives out respins and multipliers!
Beauty and the Beast (97.10% RTP)
One of the best RTP slots from Yggdrasil has to be Beauty and the Beast. With this brand’s trademark graphics, this slot really does look like it wandered off the pages of a magical fairy tale. And the characters are all fun, cute and inviting; from the jolly chef, to the pretty Beauty herself.
But, don’t be fooled by this title’s Disney-like animations. It’s still a slot with some seriously good gameplay and chances to land big prizes. Plus, with wilds, a Golden Bet feature and free spins round, Beauty and the Beast could be the key to your Happy Ever After.
Baron Samedi (97.00% RTP)
If you like your games dark and mysterious, then come and meet the Voodoo king, Baron Samedi. This title is a journey through the mystical world of black magic and voodoo symbolism. And Yggdrasil have done an excellent job of creating an eerily atmospheric slot game here. Plus, the symbols, graphics and attention to detail are all of the high standard that we’ve come to expect from this games provider.
Furthemore, Baron Samedi doesn’t just bring insanely good animations. It also brings some incredible features. Such as the Voodoo Respin round and a full deck of Tarot cards. Each one ready to help you score a big win.
Why RTP is so important
RTP is important for a number of reasons. First, it gives you a better idea of how likely you are to at least break even on a game. Second, the higher the RTP, generally, the more generous the game is considered. So, players love to find good RTP rates on games. As it means they often have a far better chance of winning.
But, how to find RTP on slots? Well, that’s easy. All casino games will display the RTP next to the game screen on their sites. So, simply glance left or right and you should see a number with a % symbol next to it. And this is the RTP of the game.
However, keep in mind that it’s not only games with high RTPs that are popular. For instance, Rainbow Riches is one of the most popular games on the market. But, the Rainbow Riches RTP is considered below the average of a slots title, at around 95%. But this hasn’t stopped players lining up to play this luck-of-the-Irish title.
Therefore, RTP isn’t the only thing that makes a slot worth playing. But, it will give you a good indication on a game’s generosity and likelihood of paying out.
Bonuses and free spins on high RTP slots
If you’ve found a great RTP slot that you want to try, then why not pick up a great casino bonus to use at your favourite new slots site?
There’s a bonus deal to suit all players. So, with that in mind, let’s take a look at these deals in a little more detail.
High RTP slots free spins
It probably won’t come as a surprise, but one of the most popular bonuses for slot gamers is the best RTP slots free spins deal.
Free spins are a great giveaway, as you can find them at most online casinos and slot sites in the UK. They could be part of a no deposit or deposit offer. And they’re usually part of a n incredible welcome package. As well as a reward to loyal existing customers. So, as you can see, there’s always a way to get your hands on some juicy free spins to use on your favourite slots.
No deposit offers
Of all casino bonuses, the no deposit offer remains super popular among players. ‘No deposit’ means just that. You can get your hands on this bonus without having to make a deposit with the site. So this means absolutely no financial risk to you whatsoever.
No deposit deals are usually part of a casino’s welcome package. And, depending on the site, you could get some bonus cash and/or a handful of bonus spins to use on slot games. So, these deals are perfect for players looking to try a site and its games for free.
Just remember, no deposit deals are usually low in value. So, if you want a load of freebies, you should consider a deposit bonus instead.
As the name suggests, deposit bonuses require you to make a deposit with the slot site first. Before you can get your bonus.
So, these deals are better suited to players who are serious about joining a site and playing a lot of games. Deposit offers are always a lot more generous than no deposit bonuses. And one of the best deals around is the ‘match deposit’ deal; where the casino will match your deposit amount with a percentage. In fact, the UK average for a match deposit bonus is between 100% and 200%. Therefore, the more you put in, the more you get in bonus cash. Making these deals the perfect way to snap up loads of cash to play slots with.
Furthemore, free spins are often found as part of a deposit bonus, too. So you could be rolling in freebies in no time!
Finally, casinos often offer deposit deals to both new and existing players. So, there’s always a way to get your hands on a bonus that you can use to play fun and exciting slots.
If you still have questions about the best RTP slots and slot sites, then check out some of our FAQs.