Highest Payout Slots

Want to get more bang for your buck? Enjoy playing the highest paying slot games at our recommended UK casinos.

When it comes to online casinos, slots are known to offer the highest potential winnings of all games.  A few lucky players turn low stake spins into life-changing wins, but progressive jackpot games aren’t necessarily the highest paying slots.  If you’re looking to play the best paying slot machine online, your search ends here.

Our guide covers exactly what it is that makes a high paying slot, as well as how to find them, so that you can enjoy playing the best payout slots at online casinos. Want to try your luck on high paying slots? Look no further than our list of the UK’s best slot sites.


What Makes a High Paying Slot?

The RTP is the percentage of all money wagered on a slot game that is paid out back to players. The higher the RTP, the more often the slot pays out on average. So if a game has an RTP of 96%, you could, in theory, expect to get back 96p of every £1 you wager over an extended period of play.

However, the RTP isn’t quite as simple as that. This is because it’s an average calculated based on the wagers all players put into a game, and is based on an infinite period of play. This means you can easily be winning back more or less than the RTP at any one time.  For this reason, it’s best to use the RTP as a rough estimate of what you could win, and don’t be surprised if your actual returns are some way off.

Most video slots and classic slots you play online have an RTP of 94%-96%, so any game with an RTP of 97% or more would be considered a high payout slot. Something to keep in mind is that the RTP of some slots can change depending on how much you wager. For example, in certain titles you have to bet the maximum amount in order to activate the highest possible RTP.

Luckily, finding out the RTP of online slots is nice and easy. This is because the UK Gambling Commission (UKGC) requires all licensed casinos and software developers to make the RTP easily accessible, in order to ensure transparent gaming. Once you load up a slot, simply click on the ‘information’ or ‘?’ icon in order to check the RTP online.


Highest RTP video slots

Here are a few of the highest RTP slots you can play at UK online casinos.

Goblin’s Cave

Goblin’s Cave, from Playtech, offers the highest RTP on the market- an incredible 99.32% when you bet the maximum amount. This 3 reel, 3 payline game also has a hold feature, where after each new spin, you get to choose to hold symbols for a better chance of landing a win in the next round. One thing to keep in mind is that the maximum bet requirement means that only high rollers will be able to enjoy the maximum RTP.

Ugga Bugga

Also developed by Playtech, an RTP of 99.07% makes Ugga Bugga one of the highest payout slots you can play at online casinos. This game is very similar to Goblin’s Cave and also has a hold feature, which adds a tactical element you don’t usually get with slots. Line up 3 wild symbols and you’ll land the jackpot, which pays out at 1,000 times your bet.

1429 Uncharted Seas

Created by Thunderkick, this 5-reel, 25 payline slot has an amazing 98.5% RTP which puts it among the best payout online slots. You don’t need to bet the maximum amount in order to benefit from this great payout rate, which makes Uncharted Seas a great slot for beginners, casual players and high rollers alike. With expanding wilds and a free spins bonus round, this title also offers plenty of fun for slots enthusiasts.


Blood Suckers is one of NetEnt’s best-known slots, and with a set RTP of 98% it’s easy to see why. This vampire-themed title features scatters, wilds and free spins with a 3x times multiplier, so there’s plenty of fun to be had. Land three bonus symbols and you’ll get to play the bonus game, where you can win cash prizes by opening the lucky coffins.


Progressive Jackpots

If progressive jackpots are famous for their life-changing payouts, then the games funding them must be the best paying  slots, right? Well, quite possibly, but only if you win the elusive jackpot, which is easier said than done.

Let’s look at an example. Microgaming’s Mega Moolah is responsible for the biggest ever payout from an online slot, when one very lucky player bagged more than £16 million. You might think that this makes Mega Moolah the “highest paying slot”, but in fact this game has an RTP of only 88.12%, which is on the low side. If you land a win, you’re probably going to bag a big prize, but on average you’re far less likely to land some returns on Mega Moolah than on the best RTP slots.

The reason for this is something known as variance, or volatility. Variance refers to the size and frequency of payouts of an online slot. Low variance means small prizes that payout often, while high variance slots payout less frequently but are more likely to hand out sizeable returns when they do.

Most progressive slots are high variance, so you may end up waiting longer for a win than with other games. A progressive jackpot can be standalone, which means it is individual to the game you play it on, or linked between games. With linked jackpots, wagers from multiple games contribute to the prize fund, meaning the top prize grows larger and faster.


Highest RTP progressive jackpot slots

Looking for the best of both worlds? We’ve picked out some of the best slots to play if you’re looking for a progressive jackpot and high RTP.

Mega Joker

NetEnt’s classic slot Mega Joker doesn’t just give you the chance to win a progressive jackpot- it’s also one of the highest RTP slots, with a payout rate of 99%. Unlike some progressive games you don’t need to max bet in order to have a shot at the jackpot, though your chances do improve the more you bet. You can either play on the bottom set of reels, or try out the ‘supermeter’ mode and go for bigger prizes.

Gold Rally

This 3-reel slot from Playtech has a minimum RTP of 94.71%, which isn’t bad, but hit max bet and it’ll shoot up to a very respectable 96.7%. You’ll need to bet max and hit the nine scatter symbols in order to land the progressive jackpot, but with a prize pool that hits £1 million fairly regularly, the potential rewards can be lucrative. Gold Rally is a fairly simple slot, so you won’t find any free spins or wilds, but there is a bonus game that can land you an increased payout.

Mega Fortune

Another NetEnt entry, Mega Fortune held the world record for the biggest online slot payout previous to Mega Moolah, paying out over £13 million to one fortunate spinner. This slot also has a very generous RTP of 96.6%, making it one of the most popular progressive slots on the market. There are also two local jackpots, in addition to free spins, wilds and a bonus game, all of which make for exciting gameplay.


Highest paying mobile slots

Want to play the highest RTP slots while on the go? All the best online casinos have mobile-friendly websites, so you can do exactly that when you play at our recommended slots sites. The top slots developers like NetEnt, Microgaming and Playtech all optimise their games for mobile play, so that you can enjoy smooth spinning when you play mobile slots on your smartphone or tablet.

If you want to enhance your mobile slots experience, download a casino mobile app. A whole host of the UK casinos have native apps that can be downloaded for free on Android and iPhone, and come with a number of benefits. For starters, mobile apps store data on your device, rather than relying on potentially slow web servers, so you can enjoy faster gaming. Plus, if you turn on notifications, you’ll always be kept in the know on the latest promotions and hottest new slots releases.

Choosing a reliable casino

Playing the best RTP slots is all well and good, but to make the most of these games you need to play at a reliable casino that will actually pay out if you land a win. There’s only one way to do this- by playing at a UK Gambling Commission licensed casino. The UKGC regulates casinos to ensure a number of things, including account security and fair gaming. This means that all the high paying slots you play at licensed casinos have accurate RTPs and use random number generator (RNG), so each spin is random and unbiased. The UKGC also ensures that online casinos actually pay out and do so within the stated timeframes. If you play at an unlicensed site, you won’t be able to guarantee fair payouts or secure payments.

All the top online casinos we recommend are fully licensed and regulated, so you can rest easy in the knowledge that any winnings you land will be paid out in the full amount. If you’re wondering how to check if a casino is licensed, simply scroll to the bottom of your chosen site where you’ll find the UKGC logo and the site’s licensing information.


Play the Highest Payout Slots Today

Ready to try your luck on the highest payout slots? Spin the reels today at one of our recommended UK casinos. Compare sites and check out our expert casino reviews to get the inside information on bonuses, banking options and more. Sign up and start playing the best payout slots today!


Frequently Asked Questions


Can I use bonuses on the best payout slots?

Pretty much all casinos limit welcome bonuses like free spins  and no deposit slot bonuses to certain titles, and these often exclude progressive jackpot games and the highest paying slots. You’ll still be able to use your spins on slots with respectable RTPs, though. For example, NetEnt’s Starburst has a payout rate of 96.1% and is one of the most popular slots for free spins bonuses.

Do I have to deposit to play high paying slots?

If you want to play real money games, yes. Luckily, our recommended best online casinos offer a range of banking options including PayPal, Neteller and Skrill, so you have plenty of choice. Most sites offer free demo slots which you can mean you can play just for fun, although this doesn’t usually include progressive jackpot slots.

Which software developers make the best high paying slots?

NetEnt is probably number one when it comes to the best paying online slot machines. As well as the likes of Mega Joker and Blood Suckers, NetEnt has produced several other high RTP titles such as Jackpot 6000 and Kings of Chicago. Playtech and Thunderkick are other good software developers for high paying slots, while the likes of Microgaming and Yggdrasil have also developed games with high RTPs.

What is the best paying online casino?

The best paying online casino is the site which pays out the most to players on average, but there’s no easy way to check this. If you’re looking for the best paying online casino, your best bet is check out the games library to see which sites offer the largest number of the highest payout slots.

Can I play high paying slots at new online casinos?

Yes. Casinos often partner with different software developers, so the games on offer vary, but you can play high paying games at the majority of new casino sites Some of the best payout online slots, like Goblin’s Cave, aren’t as widely available as other games, so you may have to search a bit harder to play certain titles.

How do I withdraw at online casinos?

If you land a win on high paying slots and want to withdraw your returns, head to the cashier page, enter in your chosen amount and hit request. Make sure to read up on withdrawal limits and processing times- check out our fast payout casinos for instant withdrawals. Keep in mind that you may have to complete a Know Your Customer (KYC) the first time you request a withdrawal.

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Daniel Bennett

As staff writer, Daniel offers his expertise in all things gambling, contributing to a number of topics on TopRatedCasinos.co.uk, including our casino reviews and strategy guides. Daniel is also an avid sports fan, with a strong interest in NBA and Premier League betting.

Alan is a staff writer at TopRatedCasinos.co.uk. He covers all areas of the online casino industry, from the newest slot releases to the latest live dealer technology. Alan is also a fan of sports betting, and spends most of his spare time watching and reading about football.