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Best Payout Slots - Top Payout Online Slots UK

By Marcus Lawrence on

TopRatedCasinos.co.uk is dedicated to helping customers find the best place to play online. Your safety and well-being is a priority, which is why all of our expert casino reviews are 100% honest and unbiased, and we highlight the key terms and conditions of every casino bonus we advertise. Whilst we accept commission from the casinos on our list of recommendations, and this may affect where they’re positioned on our lists, we only recommend casinos that we truly believe are safe and fair.

TopRatedCasinos.co.uk is dedicated to helping customers find the best place to play online. Your safety and well-being is a priority, which is why all of our expert casino reviews are 100% honest and unbiased, and we highlight the key terms and conditions of every casino bonus we advertise. Whilst we accept commission from the casinos on our list of recommendations, and this may affect where they’re positioned on our lists, we only recommend casinos that we truly believe are safe and fair.

When it comes to online casinos, slots are known to offer the highest potential winnings of all games. We’ve lined up a list of the very best slots to play for high payout percentages—otherwise known as high RTP—so you can easily locate the most generous games on the market. 

 

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UK Map Progressive Jackpot Slots Icon

A few lucky players turn low-stakes spins into big wins, but progressive jackpot games aren’t the highest paying slots by frequency. 

We’ve also covered exactly what it is that makes a high paying slot, as well as how to identify them so that you can easily find and enjoy the highest payout slots at online casinos.

The 10 Best RTP Slot Games - Our Picks - December 2023

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Rank Slot Game Reels Paylines VARIANCE RTP Claim Bonus
1
Reels
3
Paylines
5
VARIANCE
High
RTP
99%
Claim Bonus
at All British Casino
Developed by NetEnt, and with an incredible return to player (RTP) rate of 98.9%, Mega Joker is comfortably one of the best payout slot games for UK players. The 98.9% RTP rate is well above the industry average, and it's a video slot with low variance. Payout rates are frequent, but the prizes tend to be small when they land. Mega Joker has a 3x3 playing grid, five paylines, and a maximum win of £30,000. Mega Joker slot review.
AVAILABLE AT:
2
Reels
10
Paylines
100
VARIANCE
Medium
RTP
98%
Claim Bonus
at 32Red
RTP rates on Barcrest’s Rainbow Riches Reels of Gold vary according to how bold players are in their wagers. Any bet under £2 is considered conservative by this video slot, generating an RTP of 92%; wagers higher than this mark steadily raise the RTP to 96%, while the bravest wagers will push the RTP up to 98%. With a jackpot of 500x the stake and 100 different paylines in play, this leprechaun-themed classic is a favourite of many online casino players. Rainbow Riches Reels Of Gold slot review.
AVAILABLE AT:
3
Reels
5
Paylines
15
VARIANCE
High
RTP
97.04%
Claim Bonus
at Play Frank
NetEnt’s Steam Tower comes with five reels, 15 paylines, and an RTP of 97.04%, making it one of the best paying slot games in the UK. Bet limits range from £0.15 to £150, with the biggest jackpot win paying out at 2,000x the stake. During the free spins bonus round – triggered by stacking Wild icons – all bet lines are subject to the in-play multiplier, which updates prior to each free spin and according to the level players are on. Steam Tower slot review.
AVAILABLE AT:
4
Reels
5
Paylines
243
VARIANCE
High
RTP
96.86%
Claim Bonus
at Play Frank
In recent years, Microgaming’s Immortal Romance has been one of the best slots for winning. There are 243 different ways to win on this 5x3 video slot, producing an RTP rate of 96.8%. Wagers range from 30p to £30, with a jackpot payout of 12,150x the stake. Immortal Romance is a high variance slot – big wins are extremely hard to come by, and players should expect frequent but smaller payouts instead. In fact, Immortal Romance’s hit frequency of 31.21% means that on average, players will find a winning combination almost every three spins.
Immortal Romance slot review.
AVAILABLE AT:
5
Reels
6
Paylines
10
VARIANCE
Medium
RTP
99.07%
Claim Bonus
at Spin Rio
Playtech’s Ugga Bugga is a 2013 slot with a massive RTP rating of 99.07%. Although this RTP is way above the average, Ugga Bugga is a low volatility slot, meaning that payouts are frequent but small. This slot game has a unique layout, with icons appearing on a 10x3 grid, generating a maximum payout of 1,000x the stake. With a wager range of £0.10 to £250, this means players can stand to win a max jackpot of £250,000.
AVAILABLE AT:
6
Reels
5
Paylines
10
VARIANCE
Medium
RTP
99%
Claim Bonus
at All British Casino
2015’s Ooh Aah Dracula by Barcrest is a ten payline, medium volatility slot that takes place on a 5x3 grid. Players wager coins rather than cash in this game, with betting ranges stretching from 0.01 to 50, and a max win of 250,000 coins. The game incorporates two RTP rates: for the base game this stands at 96%, but if players sink their fangs into the High Roller bonus, the RTP is bumped all the way up to an impressive 99%. Ooh Aah Dracula slot review.
AVAILABLE AT:
7
Reels
3
Paylines
5
VARIANCE
High
RTP
98.9%
Claim Bonus
at Barz
NetEnt’s Jackpot 6000 is a nostalgic nod to the fruit machines of the past, seemingly taking place in a physical casino. Released in 2014, this is a high volatility slot with five paylines and a base RTP rate of 95%. Betting limits are strict, with a maximum bet of £2 and a maximum payout of 6,000 coins. If players want to make use of the slot’s Supermeter mode, they’ll raise the RTP to 98.9%. Jackpot 6000 slot review.
AVAILABLE AT:
8
Reels
5
Paylines
9
VARIANCE
Low
RTP
98.1%
Claim Bonus
at Play Frank
The Catfather aligns Garfield with Don Corleone in this unusual slot by Pragmatic Play. The game was released in 2016 to much acclaim, with players enjoying the quirky theme and high RTP rate of 98.1%. The Catfather is a low volatility slot with nine paylines that takes place on a 5x3 grid, where all kinds of felines look to build winning combinations. Pragmatic even had fun with the betting limits, which begin at £0.09 and rise to £45; max payouts are set at 5,000x the stake. The Catfather slot review.
AVAILABLE AT:
9
Reels
5
Paylines
25
VARIANCE
Low
RTP
98%
Claim Bonus
at Rialto Casino
NetEnt’s gothic-themed Blood Suckers is considered one of the best games in recent online casino history. Released in 2013, Blood Suckers’ strong theme and high RTP of 98% has endeared this game to slot fans. The game has a low volatility rating and there are 25 paylines on the 5x3 grid. Bets can be placed between £0.25 and £50, and there’s a maximum payout of 30,000 coins.
AVAILABLE AT:
10
Reels
5
Paylines
10
VARIANCE
High
RTP
98%
Claim Bonus
at LeoVegas
This high volatility slot from Yggdrasil is known for being one of the best payout slots available. Jokerizer features an RTP range of 88-98%, a £60,000 maximum win, and 10 paylines across its 5x3 reel structure. Hitting a win sends players to the Jokerizer mode, with the chance to land a mystery win. If you secure two joker symbols during this round, the mystery prize will drop with a potential 6,000-coin payout. Bets range from 10p to £2. Jokerizer slot review.
AVAILABLE AT:

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Best Payout Slots Explained

Looking for the best payout slots? You’re in the right place. On this page, we’ve got everything you need to know in order to find slots that meet this description — but what exactly qualifies as the ‘best’? 

Slot payouts can be measured in a number of different ways. Many players will be looking for the highest RTP or ‘return to player’ — the percentage of stakes a slot pays back out as winnings. Others will be seeking slots with a certain size or frequency of payout, which is known as volatility. And some players are simply looking for the biggest potential win, often found in games with progressive jackpots. Keep reading and we’ll dive into each of these slot payout factors in more detail.

Return to Player

The Return to Player or RTP of a slot is a characteristic that describes the percentage of money paid in that’s paid back out as winnings. Take a slot with 95% RTP, for example. For every £100 bet on the slot by players, £95 is returned as winnings. So — broadly speaking — the higher the RTP, the ‘better’ the payouts. 

A related concept is house edge, which is essentially the inverse of RTP. A game with 99% RTP could be described as having a house edge of 1%. 

It’s important to keep in mind that RTP numbers are mostly theoretical. They’re calculated by slots developers over millions and millions of spins, so you’ll never see them bear out during your own play session. Nonetheless, it’s a good idea to pick a slot with higher RTP if you’re seeking the best payouts. 

How to Find a Slot’s RTP

Usually, developers are required to publish RTP numbers for their slots. You can often find this information in the help section of the slot or on the developer’s own website. Sometimes there are two figures — the ‘expected’ RTP is theoretical, while the ‘actual’ RTP is based on the slot’s historic payout performance.

While RTP gives us an idea of how much a slot pays out over time, it’s only one part of the picture. Volatility — or variance — is the second payout characteristic to consider, and describes the size and frequency of payouts.

  • Low volatility slots tend to pay out more frequently but in smaller amounts. 
  • Medium volatility slots offer a mix of big and small wins at varying frequencies.
  • High volatility slots may pay out less frequently, but often in larger amounts.

The slot variance you prefer depends entirely on your own playstyle. It can also be helpful to consider your budget — those with less to play with may prefer to rack up some smaller wins before burning through their bankroll, while larger budgets can allow you to weather the long dry streaks more common in high variance slots.

How to Work Out a Slot’s Variance

Some developers will include the volatility in the help files of the slot, but this isn’t always the case. Thankfully, it’s fairly easy to work out for yourself — just take a look at the paytable. Seeing lots of low-paying symbols and just a few high-paying ones? It’s likely the slot has low volatility. The reverse also holds true, with high volatility slots tending to have more high-paying than low-paying symbols. 

The third characteristic to consider is the maximum payout. Quite simply, this is the largest amount you can win on the slot. You can think about max payout in a few ways:

  • Maximum base game payout is the max stake multiplier per payline. For example, Starburst’s maximum base game payout is 250x your bet, which requires landing five of the Bar symbols on a payline. 
  • Maximum bonus round payout is a separate maximum that applies during bonus rounds. Book of Dead has a max payout of 5,000x your stake in the bonus round, for example.
  • Maximum overall payout is a fixed ceiling on what you can win, although it’s not found in every slot. If you exceed this amount, the round ends and the payout is added to your balance. 
  • Jackpots are separate prizes that are won when the player fulfils a specific requirement. Many jackpot slots feature different tiers of prize, while some are progressive and increase with every bet. Mega Moolah, for example, has paid out jackpots worth tens of millions in the past.

How to Find the Maximum Payout of a Slot

Again, you’ll often find the max payout of a slot within the help files. If not, it’s simple enough to calculate yourself. Take a look at the paytable and find the highest-paying symbol. Multiply the payout by the maximum stake allowed in the game. 

For example, Gonzo’s Quest has a max payout of 2,500x in the base game and a max stake of £50. So theoretically you could win a maximum of £125,000 if you fill the board with the highest-paying symbol.

Pros and Cons of Playing the Best Payout Slots

High payout slots are great for those looking for the best RTP rates, but they won’t be to every player’s taste. Here’s a brief round-up of the reasons for and against playing these slot games.

Pros
  • Play slots with the highest RTP rates – The best payout slots will offer the best RTP percentages of any slot games, so will in theory offer frequent prizes, but remember that any one session can provide big fluctuations in the advertised figure
  • Sample the best game developers – All of the industry's best slot developers have created high payout slots, so you can enjoy a varied experience when playing these games
  • Enjoy slots across a range of styles – High payout slots can take many different forms – from classic slots with one payline, to Megaways titles with hundreds of thousands
  • Make use of bonus features – Many of the best payout slots will deploy a mix of in-play bonus features, such as multipliers, wilds, free spins, picking games, and additional bonus rounds
  • Suitable for players with small budgets – Since these slots pay out at increased rates on average, players can often spin their reels with small wagers – sometimes as low as a penny
  • Play on mobile – The best payout slots are all mobile compatible, so you can spin the reels on the go
Cons
  • Frequent but small wins – Most high payout slots compensate for the frequency of their payouts by issuing small amounts when players win
  • Strict game weightings – Since high payout slots offer players frequent wins, online casinos often limit contributions to the wagering requirements – check the terms and conditions for a full breakdown of game weightings
  • No guarantee of winning – Although your chances of winning on a high payout slots are increased, there are never any guarantees in gambling

How to Choose a Casino with Best Slot Payouts

With so many options on the table when it comes to best payout slot sites, it can be hard to choose. Follow this quick guide for a helping hand.

A woman holding up a checklist. STEP 1
Browse our List of Best Payout Slot Sites
At the top of the page, you’ll find a handy comparison table summarising the different casinos with best payout slots, along with details like bonus offers. If one catches your eye, click through to our detailed review to find out more, or head straight through to the site using the ‘Claim Bonus’ button.
Two people where one is holding a magnifying glass up to the other. STEP 2
Browse Games and Features
Take a look through the library to see what games are on offer, or read our casino review for an in-depth breakdown. If you’re specifically looking for high RTP slots, you’ll find plenty of inspiration further down the page.
Two people having a conversation. One is holding a card with a question mark on it. STEP 3
Review Bonus and T&Cs
All the top payout slot sites feature a welcome bonus to get you started, but which is best? While size is certainly important, it’s not the only factor to consider. It’s worth reviewing the bonus T&Cs so you understand the limitations and requirements. For example, free spins may only be valid for one or two specific slots.
A man holding a piggy bank. STEP 4
Deposit, Sign Up, and Claim
Once you’ve singled out the perfect best payout slot site, head to the homepage to sign up. Enter your details to create your account, and make your first deposit to claim your welcome bonus. From there, simply select a title from the games library to start playing!

Top UK Casinos with Best Payout Slots in December 2023

Name Slot games Bonus Score Claim Bonus Review Terms and conditions Information
Slot games :
571
WELCOME OFFER

100% up to £50 + 50 Free Spins

Our Score
8.5/10
Reviewed by James Langley
  • Launched: 2019
  • Slots: 571
  • Progressive Jackpot Slots: 20
  • Payout: 96.5
  • Wagering: 30
  • Payout Speed: Instant - 5 days
  • Payment Methods: 10
The design of the VoodooDreams casino homepage makes seeing what’s available a hassle-free experience. I found the registration process simple, and I got my 100% up to £50 bonus and 50 free spins on Book of Dead as soon as I made my qualifying deposit. There are more than enough slots here to keep even diehard slots enthusiasts happy, and I feel that most will also find the site’s unique loyalty scheme loads of fun. The program is magical-themed and involves casting spells to collect free spins and cash rewards! Instant payouts to most banking options round off the perks at VoodooDreams, leaving the only concerns the wagering requirements attached to the sign-up offer and the absence of a mobile app.
18+ new players only. Maximum £50 bonus. Minimum deposit: £20. Deposit Bonus wins are capped at £500. Max bet with active bonus: £2. Wagering requirement 100% match deposit bonus: 30 times sum of deposit + bonus. Winnings from Free Spins are credited as Real Money without wagering requirement. Some games may not be played with an active bonus. Games may contribute differently when wagering a bonus. Deposit Bonus expires after 30 days if wagering requirement has not been met. Free Spins expire after 3 days. One bonus allowed per person, address, device, IP. www.begambleaware.org For full bonus terms and conditions, please read below. Responsible Gaming 18+ Please Gamble Responsibly. Click 'Claim Bonus' to view the full terms and conditions.
Voodoo Dreams games library
Pros
  • Matched deposit and free spins for new players
  • Free spins winnings paid as cash
  • Impressive selection of best payout slots
  • Unique loyalty scheme
  • Instant payouts to all withdrawal methods bar debit cards
Cons
  • Huge wagering requirements of 60x deposit and bonus
  • No mobile app available
Slot games :
1600+
WELCOME OFFER

100% up to £100 + 10% Cashback

Our Score
9.5/10
Reviewed by James Langley
  • Launched: 2013
  • Slots: 1600
  • Progressive Jackpot Slots: 17
  • Payout: 97.5
  • Wagering: 35
  • Payout Speed: Instant - 5 days
  • Payment Methods: 8
Setting out to discover if All British Casino was a good pick for UK players, I was pretty impressed by what I found. Signing up was simple, and I was able to claim the 100% up to £100 matched deposit bonus and dive into the slots collection in just a few minutes. I was wowed by the range of software providers that contribute to the library. This included the likes of NetEnt, Thunderkick and Nolimit City, so I feel confident in thinking that most players will be as pleased as I was by the choice of games. The mobile app, tested on iOS, also hit the spot, offering a smooth playing experience and access to plenty of best payout slots.
#AD New customers only, min deposit £20, wagering 35x, max bet £5 with bonus funds. Max bonus is 100% up to £100. No max cash out on deposit offers. Welcome bonus excluded for players depositing with Skrill or Neteller. Cashback is cash with no restriction. Click here for full T&Cs
18+ Please Gamble Responsibly. Click 'Claim Bonus' to view the full terms and conditions.
All British Casino Landing page
Pros
  • 100% up to £100 welcome bonus with no winning cap
  • 10% cashback every week
  • Great selection of games
  • Mobile app available
  • Many payout requests processed same day
Cons
  • 35x wagering on bonus amount
  • Skrill and NETELLER excluded from bonus