The thrill of slots lies in the potential for a big payout. Whether you’re looking for the big jackpot or trying to grind out a steady profit, it’s what the machine gives you back that’s the most important. But are all slot machine payouts equal? Is there any truth to the myth that some games are more generous than others? If you’ve ever asked yourself these questions, then you’ve come to the right place.

If you are on a mission to find the highest payout slot machines when you enter a casino or an online gambling site, we have the right information for you. We did our research and found out which slot machines pay the best. Keep reading for more information.

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• –Read ReviewDC Comics Licensed SlotsPopular Age of the Gods Series–
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On this page, we’ll go over the best payout slots in the UK today, plus tell you exactly how you can check the slots payout ratio of any game you come across. Remember, the UK gambling scene is completely licensed and regulated. Consequently, casinos must be transparent about how much money they are making and paying back out in jackpots and winnings. The information is not always sitting right in front of your nose, but it is there to find if you know where to look.

Slot Machine Payouts – In a Nutshell

So how exactly does a slot payout ratio work? The amount that a slot machine pays out can, and is, calculated by both casinos and regulators. Modern online slots call this value RTP – or return-to-player. The figure is given as a percentage and is used to provide customers with an accurate prediction of how much of the money staked on a game is paid out in prizes. There are a couple of things you need to understand about RTPs, however, before you wander off in search of the highest rate.

RTPs are theoretical. We cannot stress this enough. If you find a game with a reported theoretical RTP of 98%, it does not mean you are guaranteed to have 98% of your stake returned in a single gaming session. Sometimes, you can find data for actual RTP rates. Actual RTPs are more accurate than theoretical ones, but it’s important to realise that they represent the rate of payouts in the past, and do not necessarily reflect what that machine will pay out in the future.

Let’s look at an example to better explain how RTP is calculated in the online casino industry. Say, for example, that you are playing a slot that had one payline, and the chance of winning on that payline is equal for every spin you take. If, after staking a single coin on 10 spins, you have received a total of 9 coins in return, your actual RTP would be 90%. Sounds simple, right? Now consider that some modern slot games have more than 200, unequally likely ways to win. Calculating an RTP by yourself is impossible over 10 spins, never mind the millions of spins that are used to produce the data that is available to players today.

Types of Slots and Their Payout Ratios

Technological advancements in digital gaming and the switch to software-based slot machines somewhat diversified the market. As a result, it’s easier to categorise our favourite slot games into four main groups to differentiate between the what is a typical RTP and how to spot a bad one.

Progressive Jackpot Slots

There’s no doubting that progressive jackpot slots are the headline acts of this market. Progressive jackpots are the result of thousands of players working together to build big prizes at ridiculous speeds. Slots that have a progressive jackpot are linked together across several games, casinos and even countries. As a result, the RTP of these games tends to be on the low side.

A game like Mega Moolah, for example, has an RTP of around 88%. However, this is countered by the fact that when it pays, it pays big.

Classic Slots

Classic slots that stick to the traditional fruit machine formula tend to have what we call ‘fixed jackpots’. This means that the largest prize does not change regardless of how many people around the world are losing money on it. As a result, the base payout ratios of these games tend to be a little higher than a progressive jackpot slot.

A classic slot such as Jackpot 600, for example, has an RTP between 95.1% and 98.9%. These slots payouts won’t make you an overnight millionaire but are perfect for longer playing sessions.

Video Slots

Video slots are modern incarnations of classic slots. They vary in style, formats and payout ratios, but in general when we refer to video slots, we mean the computer-generated, video-gaming-looking games such as Gonzo’s Quest. There’s really no general rule for RTPs with these games, given the openness of the way they are designed.

A video slot can have one payline or 243, and the slots payout ratios vary in much the same way. The best thing to do is check the RTP of the game – by searching through the help sections – before you begin to spin.

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Franchise Slots

Today’s online slots market is filled with popular franchise slot machine from your favourite TV shows and Hollywood movies. The franchise model really came to life with the rise and fall of the Marvel slots. Despite Disney pulling the plug of the superhero games that proved such a big hit, the Marvel games proved that franchise slots had a place in this market.

Today, games such as Universal Studios’ Psycho and Game of Thrones reign supreme. These games tend to have a lower payout ratio than non-licensed slots due to the higher costs to software providers or using the official characters and branding.

How to Find the Best Payout Slots

Depending on whether you play slots offline or online, these casino games of chance can have lower or higher payout ratios. In terms of differences between software provides, there tends to be very little. Choosing a software provider is a matter of game preference and experience, rather than favourable RTPs. The same goes for mobile games. The payout ratio of a mobile slot is the same as it is when you play it on desktop. Slots payout ratios are particularly important if you are planning on playing slots for high-stakes, as you’ll want to find the best RTP possible to protect your significant risk.

If you want to check the slot payouts of online casinos for yourself, search the online casino site for possible reports from independent auditing firms. You can check the slot payouts at each casino by looking for reports from Technical Systems Testing (TST), a Gaming Laboratories International third-party auditing company. The company tests electronic gaming equipment and makes sure it produces random results. Regarding slots, it conducts rigorous tests on their RNG and ensures it creates fair outcomes. You can also look for reports from eCOGRA, an independent and internationally recognised testing company established in 2003 and based in the United Kingdom. The agency specialises in the certification of online gaming software and systems and some of its activities focus on fair gaming by evaluating the RNG and RTP of games, providing secure and safe gaming environment and preventing underaged and vulnerable players from gambling. Online casinos usually offer reports from TST or eCOGRA on their websites and display seals of approval on their homepages.

Discover Top Online Casino Slot Payouts

The competition in the online slots market is so intense that software developers and casinos are scrambling to create games that offer the best payout ratios possible, whilst still generating profit for the operators. Modern online casino fans are savvy, and gambling companies know this. RTP is becoming more and more of a common term amongst even casual fans, and we predict it will be a more prominent unique selling point for new games in the future.

A common question we get asked when talking to slots players on this subject is: Do some online casinos have better payout slots compared to others? The short answer is no. The payout rates are determined by the software provider. These RTPs are audited by third party companies and companies can get into big trouble for messing around with the random number generator or the game’s inner workings after it has been certified as fair and safe. One thing that can change from casino to casino, though, is the maximum bet and/or coin limits. These do not directly affect the percentage payout rate, though. It’s also worth remembering that even games that can be found both online and offline will not have the same payouts.

Where Are the Best Land-Based Casino Slot Payouts?

Bricks and mortar casinos work differently from online casinos in terms of operation, functionality and many other factors. When it comes to their payout ratios, at land-based casinos they are roughly between 84% 86% and they are calculated based on restrictions such as costs of development and manufacturing as well as costs of the massive overhead. These costs leave a big cut for bricks-and-mortar casinos and therefore, they have to offer lower payout ratios than those of Internet casinos to stay afloat.

For online casinos, the payout ratios of slots are much different. They are much higher or approximately between 90% and 97%. The biggest reason behind this is that the costs associated with running an online casino site are lower than the costs of running a land-based casino. Expenses connected with massive overheads or manufacturing are irrelevant for online casinos so no wonder why the payout ratios of games are higher. You can find land-based casino slots at any major high-street casino. Today, you’ll even find popular online games at your local branch. However, do be aware that despite the gameplay being the same, the payout ratio will be lower than it is online.

Curious Payout-Related Behaviour at Land-Based Casinos

There are some curious behaviour patterns that we’ve observed when playing land-based slots. There’s no telling how well these tricks and ‘hacks’ work – while some are simply quirky and potentially good for thwarting off boredom at a brick and mortar gambling joint, some verge on misleading superstitions. We’ve summarised our favourites below.

• Timing the machine: Some punters monitor a slot for when it pays-out, and dive in after a certain amount of time has passed
• Popularity contest: If others are staying away, the logic goes that it is for good reason
• Identifying patterns: Loitering around a slot, watching others play, and noting down the payout frequency
• Rotation: Avoiding sticking at the same machine because it surely must payout soon!
• High-limits: Punters pick slots that require higher wagers, but have higher payouts

It Is All Really Worth the Effort?

The important thing to take away from this guide to payout ratios is that nothing is permanent in this fast-moving market. The only way to really stay on top of the game is to take an interest in the industry as a whole. The best way to find the absolute highest RTP possible is to check out plenty of slots games and casino reviews. The other option, of course, is to forget about RTPs, payout ratios and all that technical stuff, and to just play the games and have fun. Remember, even the best payout slots ratio imaginable is still going to favour the house. With that in mind, it might be better to just enjoy the ride, have fun, and forget about trying to maximise your winnings. At the end of the day, whether you win or lose comes down to luck, just as it always has, and always will.

The benefit of playing any of the highest payout percentage online slots is of course that you are going to get, over the long term, many more winning spins on those slot and will always get more play time from your bankroll and a much higher percentage of your stakes being paid out to you as winning pay-outs.

However, I can tell you for sure, that when you do go on the hunt for the loose online slots that are available to all slot players you can spend many hours, if not days checking out the RTP’s of such slot games, and no player is going to want to waste their time.

Therefore what I have done in the following guide is to do all of the research for you, and as such I will now be presenting to you the highest RTP slots online, and will also let you know which game providers have launched and designed those slot games.

That will then put you in the position whereby you can track down any casino site offering those higher paying slot machines, and can pick and choose just which casino sites to play at, based on other factors such as bigger and better bonuses, generous comp clubs and rapid winning pay-outs too.

1. Mega Joker Slot – RTP 99.00%

With its certified RTP of 99.00% there really is a lot to like about the Mega Joker slot and whilst it is a slot with a 3 reel, 5 pay-line playing structure, it will be slot that you can always rely on to deliver you with plenty of winning pay-outs.

The Mega Joker slot can be found at all casino sites offering the ever-growing range of NetEnt designed slots, all of which are fully licensed and regulated by the way.

2. Jackpot 6000 Slot – RTP 98.90%

Having launched literally hundreds of great playing slot machines over the years, it will not surprise you to learn that the second top paying online slot by virtue of its RTP is another NetEnt designed slot, that being their Jackpot 6000 slot machine.

That slot, much like the one above has been designed as a basic playing 3 reel, 5 line slot, and you are bound to want to give it some play time sooner rather than later once you discover its long term expected pay-out percentage is a whopping 98.90%.

3. 1429 Uncharted Seas Slot – 98.60%

Whilst the first and second slots with the highest RTP’s are the older styled classical slots, there are plenty of video slot games that do come with above average pay-out percentages, and the next one worth tracking down and playing is the 1429 Uncharted Seas slot.

That is a slot on which some huge winning pay-outs can be achieved via both its base game and bonus game, which is a set of free spins, and it’s a multi denomination slot game too and one has been designed by Thunderkick and has a verified RTP of 98.60%.

4. Blood Suckers Slot – 98.00% RTP

Never be under the impression that you are going to have to pay the slots boasting the very highest pay-out percentage online for high stakes, and each of them do come with fully configurable staking options, that put you in full control over the stake levels you can play them for.

If you do find yourself playing at a casino site offering you the range of NetEnt designed slots, then do make sure that you give the Blood Suckers slot game a whirl, for by doing so you will be playing a Vampire themed slot and one with a high RTP of some 98.00%

5. Starmania Slot – RTP 97.87%

Low to medium variance slots are as popular as ever with slot players, as too are the range of NextGen Gaming designed slots, and you will find that all their slots have stunning graphics and some very highly advanced sound effects too.

You are not going to have to look too hard to find a casino site offering their range of slot games, but one that you should be making a beeline to play is the Starmania slot, which has been set to return to plays over the long term 97.87% of their stakes as winning pay-outs.

6. Kings of Chicago Slot – 97.80%

I do hope you have now got plenty of slot games to add to your list of higher paying online slots, however there are still plenty of other slots that are going to be worth checking out and playing, such as the Kings of Chicago slot game from NetEnt.

That slot is unusual in as much as the reel symbols are all playing card symbols, and I would advise you to read through its pay table to get an idea of the very unique winning combinations that can be spun in and formed when playing it online and the bonus game on offer too, for you will find it a fun slot to play and a higher paying slot too thanks to its 97.80% RTP.

7. Devil’s Delight Slot – 97.60%

When it comes to finding the best slots to play online, the devil is always in the detail, which is a great introduction for the next slot with a higher than average pay-out percentage that you can play online that being the Devils Delight slot.

A fun to play video slot that does of course offer players all the unusual play configurable option settings which include a speed play setting and auto play option, and one thing you will love about that devilishly good NetEnt designed slot games is its 97.60% RTP.

8. Retro Reels Extreme Heat Slot – 97.50%

There is no doubt in my mind, that many of you slot players out there will have played Microgaming designed video slots before, and probably do always tend to play them regularly too, and they can be accessed by a downloadable and instant play gaming platform and a mobile casino app too.

One slot that you need to get stuck into playing to have the maximum winning chances at any casino site offering Microgaming designed slot machines is the Retro Reels Extreme slot, as it is a video slot on which you will find an RTP of a fabulously high 97.50%.

9. Simsalabim Slot – 97.50%

It isn’t too unusual to find more than one online slot that has been set to return a pay-out percentage of the exact same amount as some other slot games over the long term, and as such allow me to introduce you to another slot that comes with the same RTP as the above slot.

That additional slot though is part of the NetEnt collection of video slots and goes by the name of the Simsalabim slot, it’s a slot also boasting a magic type of themes and its RTP of 97.50% should ensure you get a fair amount of play time out of your gambling budget too.

10. Jack Hammer 2 Slot 97.10%

There are now two slot games from NetEnt that make up the Jack Hammer series of slots, however I should point out that if you have only played the original version of that slot you really do owe it to yourself of play the second slot in the series instead.

The reason for me saying that is that the Jack Hammer 2 slot is a game that boast a slightly higher and much more appealing RTP than that of the original game, and for reference that long term expected pay-out percentage has been set at 97.10%.

Single Session Slot Game RTP’s

One final aspect to playing slot machines, including each of the top 10 slots with the highest RTP’s that all players do need to be fully aware of, is that those slots are completely random, and as such you could win or lose when playing them.

On any one single slot playing session, that does of course mean that even though for example a slot such as the Jack Hammer 2 slot has been set to return a pay-out percentage of 97.10%, you are unlikely to achieve that exact pay-out percentage on every session that you have playing it.

But over the long term the more that you do play any slot the much more likely you are to achieve its pre-set RTP, and you could of course achieve a pay-out percentage of over 100% or a pay-out percentage much lower than the one it has been set to return to players.

However, make no mistake about it, when you do set about playing low paying and higher paying slots you are soon going to notice the difference in the type of gaming session you do have, as you are much more likely to spin in many more winning combinations, and trigger many more potentially huge paying bonus game feature rounds when playing those slots with the highestpaybacks.

So make sure that you do have each of those slot games listed up above higher up on your list of slots to play online, when you next fancy spinning some slot game reels online, as they are the very best ones you can play currently.

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David is the editor-in-chief at casinosx.com and has been involved with the casino industry for 15+ years. Working on a number of sites he enjoys helping out other casino players with his guides and tips and tricks to help everyone get the best value for money when playing online.