Best-Rated Slot Sites UK for 2024 | July 's Top 20 Sites

Compare Top 20 Online Slot Sites UK – 2024

With countless online slots sites today, finding one that fits your preferences is tough. Our KingCasinoBonus.uk experts identified and categorized the leading UK slot sites based on key criteria. Our highest-rated picks deliver great slot libraries and jackpots, and feature the finest software providers.

Dive into our breakdown of the UK’s finest slot sites, tailored just for you! We explore the ultimate online slots sites for every type of gamer. With his hefty seven years in the UK’s online casino industry, our CEO, Ionut Catalin Marin has curated a selection of sites that hit the mark for both newbies and old hands.

Rank	Casino	Rating	Slot Games	Min. Deposit	Payout Time
1	Monopoly Casino	4.1	1300	£10	1 day
2	Casushi Casino	3.8	750	£10	2 days
3	Bally Casino	4.0	430	£10	1 day
4	Playsunny Casino	4.0	1450	£10	2 days
5	Dragonbet	3.8	175	£1	1 day
6	FruitKings Casino	3.8	1000	£10	2 days
7	Betfred Casino	4.1	1000	£5	under 1 hour
8	Megacasino	4.0	5000	£10	under 1 hour
9	Fitzdares Casino	3.9	1127	£10	1 day
10	Grosvenor Casino	4.1	700	£5	under 1 hour
11	Midnite Casino	4.0	1700	£5	2 days
12	Lottomart	4.0	2005	£1	1 day
13	mr.play Casino	4.0	1000	£10	2 days
14	Gentleman Jim Casino	3.5	130	£10	2 days
15	MrQ Casino	4.1	800	£10	under 1 hour
16	MadSlots Casino	3.9	1000	£1	1-2 days
17	KnightSlots Casino	4.5	4660	£10	1 day
18	PokerStars Casino	4.5	1100	£10	under 1 hour
19	Pink Casino	4.0	578	£10	1 day
20	NYspins Casino	3.9	630	£10	2 days

1. Monopoly Casino Review

Monopoly Casino Rating

Rating4.1 / 5

Look & Feel

5.0 / 5

Payout Speed

4.0 / 5

Slot Games

5.0 / 5

Live Games

5.0 / 5

With a staggering selection of over 1300 games, Monopoly Casino is the undisputed best slot site for variety. Experience the most sought-after slots from giants like Pragmatic Play, NetEnt, and Microgaming. Newbies, rejoice: land 30 wager-free spins as a welcome treat, perfect for exploring the Monopoly-themed slots.

The site promises silky-smooth mobile gameplay and top-notch customer support, ensuring a premium slot experience for all. But, traditionalists be warned: the classic three-reel slot selection is on the lean side.

Pros:

• Massive 1300+ game library from top providers
• Great optimization for mobile slots play
• No wagering welcome bonus available on the Monopoly slot series

Cons:

• Selection can feel overwhelming for some
• The number of classic slots is quite limited

Alternatives:

Check out Monopoly Casino sister sites like Virgin Games or JackpotJoy.

Monopoly Casino Gallery

2. Casushi Casino Review

Casushi Casino Rating

Rating3.8 / 5

Look & Feel

4.5 / 5

Payout Speed

3.9 / 5

Slot Games

5.0 / 5

Live Games

5.0 / 5

Casushi Casino secures the silver spot in our UK slot site rankings, thanks to its hefty +750 slots from the crème de la crème of developers like NetEnt, Microgaming, and Red Tiger. Casushi is a playground of variety, covering everything from timeless classics to the latest video slots, megaways, and jackpots.

Dive into the Mega Moolah series for a shot at its progressive jackpots, now towering over £5 million. And while the new UKGC rules mean no bonus buy slots, there’s still plenty to explore, including about 50 megaways titles with 1000s of paylines.

Pros:

• 750+ games from major software developers, like Microgaming
• Intuitive mobile optimization for flawless slot play
• Classic titles alongside new video slots, megaways, and jackpots

Cons:

• Withdrawal times are slower than some sites
• Few progressive jackpot options

Alternatives:

See what Casushi’s sister sites have in store for you.

Casushi Casino Gallery

3. Bally Casino Review

Bally Casino Rating

Rating4.0 / 5

Look & Feel

5.0 / 5

Payout Speed

4.0 / 5

Slot Games

4.0 / 5

Live Games

5.0 / 5

Bally Casino is one of the best UK slot site, and what makes it the crown jewel of UK slot site is its collection of 430+ games from renowned providers like Pragmatic Play and NetEnt. Slot variety spans themes and features, from the latest video slots to classic three-reel games. While the number of titles may seem quite low, the collection is diverse, and the slots offer high-quality play. Despite the smaller number, our experts liked the library of slots at Bally Casino. However, this is why the site falls short of first place.

If you are a mobile player, you can rest assured. With a great mobile optimization common to the best Gamesys sites, you can enjoy all your favourite titles on the go. Bally Casino also carries the rare progressive jackpots, as well as Slingo titles, which are a combination of slots and bingo.

Pros:

• Leading software providers, like Pragmatic, Gamesys, and NetEnt
• Optimized gaming on all mobile devices
• Jackpots, Slingo, classic and video slots available

Cons:

• Smaller game selection than some sites
• No phone support available for users in need of help

Alternatives:

The best alternatives to Bally Casino include BetUK (no wagering free spins on Big Bass Splash and no monthly maximum cashout) and Lottomart (2005+ slots, up to £100 bonus and 20 Free Spins on Big Bass Bonanza).

Bally Casino Gallery

4. Playsunny Casino Review

Playsunny Casino Rating

Rating4.0 / 5

Look & Feel

4.5 / 5

Payout Speed

4.1 / 5

Slot Games

5.0 / 5

Live Games

5.0 / 5

Play Sunny emerges as a top slot site for fans of classic slots, with over 30 three-reel titles alongside its modern selection. Across over 1400 total games, Play Sunny brings a good amount of fruit and 7s slot games, which we appreciated. If you want to go from the classics to the other titles, know that you will find anything you’d like: video slots, megaways, as well as progressive jackpots.

Pros:

• 20+ beloved classic physical-reel slots
• 1400+ additional modern games
• Mega Moolah titles are available

Cons:

• Dated web design lacks visual appeal
• Slow payout processing speed of 2 days

Alternatives:

PlaySunny is optimized for mobile play, but we’ve seen better iOS casino apps in July 2024, such as Kwiff Casino.

Playsunny Casino Gallery

5. Dragonbet Review

Dragonbet Rating

Rating3.8 / 5

Look & Feel

5.0 / 5

Payout Speed

4.0 / 5

Slot Games

3.0 / 5

Live Games

5.0 / 5

Dragonbet Casino features a relatively limited yet highly qualitative collection of around 175 slots. All games are supplied by three developers: Pragmatic Play, Blueprint and LEAP. The selection encompasses most slot types, including classic, video, special features and megaways, with bets ranging from £0.10 to £100.

We would like to see the addition of more games and top providers to make the catalogue suitable for even more British gamblers.

Pros

• Most games come from premium providers, Pragmatic Play and Blueprint Gaming
• Most types of slots are available, including classic, video and megaways
• Great maximum bet of £100 on specific titles

Cons

• Under 200 slots
• Only 2 providers

Dragonbet Gallery

6. FruitKings Casino Review

FruitKings Casino Rating

Rating3.8 / 5

Look & Feel

4.0 / 5

Payout Speed

3.9 / 5

Slot Games

5.0 / 5

Live Games

5.0 / 5

With a choice of over 1000 slots, is a top contender where you can always find a suitable slot at FruitKings Casino and never play the same game twice. You can’t play slots from a downloadable app but can access them on any desktop and mobile browser.

UK players can use the ‘Search’ bar to find a particular game or provider. Unless you register on the platform, you cannot access the titles.

Pros

• You can explore a catalog of hundreds of more than 1000 slots
• Browse innovative slots from leading developers like Yggdrasil, NetEnt, Red Tiger, and more

Cons

• Not all the slots have the autoplay feature.

FruitKings Casino Gallery

7. Betfred Casino Review

Betfred Casino Rating

Rating4.1 / 5

Look & Feel

5.0 / 5

Payout Speed

4.6 / 5

Slot Games

5.0 / 5

Live Games

5.0 / 5

Betfred Casino stands out as the top slots site for fans of NetEnt slots, boasting a vast array of titles from the acclaimed developer. Dive into the heart of British slot culture with all-time favorites like the Starburst series and Gonzo’s Quest. Beyond the NetEnt galaxy, Betfred offers a rich selection of nearly 1000 games from various top-notch studios, with NetEnt leading the pack in volume.

The experience is enhanced with seamless mobile gameplay and a generous welcome offer: 200 spins. This bonus is among the most competitive in the UK scene, giving you a golden ticket to explore NetEnt’s finest with just a small investment.

Pros:

• Extensive NetEnt selection
• Great optimization for mobile play
• Great welcome bonus with up to 200 spins

Cons:

• Selection beyond NetEnt is quite bland
• Site design feels dated to some users

Alternatives

We recommend Barz Casino for a similar variety of NetEnt slots and bonuses.

Betfred Casino Gallery

8. Megacasino Review

Megacasino Rating

Rating4.0 / 5

Look & Feel

4.0 / 5

Payout Speed

4.0 / 5

Slot Games

5.0 / 5

Live Games

5.0 / 5

Megacasino boasts an impressive collection of over 5000 slots, and top iGaming developers like Pragmatic Play, NetEnt, Play’n Go, and Microgaming provide most of the titles. British players cannot test the slots beforehand in the demo mode.

That said, some jackpots on the platform have outstanding pots of around £2000000, even if you won’t find any progressive such games on the platform.

Also, Megacasino packs some of the most popular and in-demand games, such as Gonzo’s Quest, Starburst, Bonanza, and Book of Dead.

Pros

• An outstanding collection of over 5000 slots
• A few jackpots have £2000000 pots, which is impressive

Cons

• No progressive jackpot options
• There is no demo version of the games.

Megacasino Gallery

9. Fitzdares Casino Review

Fitzdares Casino Rating

Rating3.9 / 5

Look & Feel

4.5 / 5

Payout Speed

4.0 / 5

Slot Games

5.0 / 5

Live Games

5.0 / 5

Fitzdares Casino features an extensive catalogue of slots with over 1100 games from premium providers, including Microgaming and Blueprint. You will find most types of games available, including classic, video, megaways, bonus features, progressive and regular jackpots.

Pros

• Over 1100 slots
• More than 10 top providers
• Max bet of £100

Cons

• Lack of demo mode
• No games from NetEnt

Fitzdares Casino Gallery

10. Grosvenor Casino Review

Grosvenor Casino Rating

Rating4.1 / 5

Look & Feel

4.8 / 5

Payout Speed

3.5 / 5

Slot Games

5.0 / 5

Live Games

5.0 / 5

Review on Slots

The access to 700 slots you get on desktop and mobile is satisfactory as it allows you to try out multiple game types, such as video and classic slots, megaways, or jackpots. Moreover, top-notch providers like NetEnt, Play’n Go, Microgaming, and many others provide the games. It is also worth mentioning that Grosvenor Casino has its own iOS and Android apps with all the available games.

Lastly, if you click on the ‘i’ button in the upper right corner of each game, you can read additional details like description, how to play, and terms and conditions.

Pros

• All games are mobile-friendly
• Each title has an informational tab containing valuable details such as the payout rate, betting limits, and bonus features
• You can also play progressive jackpots

Cons

• The games aren’t available in demo mode.

Grosvenor Casino Gallery

11. Midnite Casino Review

Midnite Casino Rating

Rating4.0 / 5

Look & Feel

5.0 / 5

Payout Speed

3.3 / 5

Slot Games

5.0 / 5

Live Games

5.0 / 5

Slots Review

Among the 1700 slot games at Midnite Casino, you will encounter titles from 30 developers, including Play’n Go, NetEnt, and Wazdan. There are different categories, like Most Popular, What’s New, and Trending. If you press on ‘Game Providers,’ you can find the titles from a particular developer. For example, Blueprint offers 111 titles at the moment.

Unless you join the site, you cannot access the demo version of the titles.

Pros

• A great selection of 1700 slot games
• 30 iGaming providers, including renowned studios like Play’n Go
• Multiple game categories with over 70 megaways

Cons

• The site does not feature Microgaming titles
• You cannot play the games in the demo unless you sign up.

Midnite Casino Gallery

12. Lottomart Review

Lottomart Rating

Rating4.0 / 5

Look & Feel

4.5 / 5

Payout Speed

4.0 / 5

Slot Games

5.0 / 5

Live Games

5.0 / 5

UK bettors can play 2000 slot titles at Lottomart, and multiple software developers like NetEnt, Microgaming, and Red Tiger provide these games. Some of the most popular slots you should look at are Rainbow Riches, Mega Moolah, Starburst, and Fishin’ Frenzy Megaways.

Moreover, you can play over 50 progressive jackpots on the site.

Pros

• Many slot games – 2000
• Multiple top providers
• Different game categories

Cons

• The titles do not have a demo version.

Lottomart Gallery

13. mr.play Casino Review

mr.play Casino Rating

Rating4.0 / 5

Look & Feel

5.0 / 5

Payout Speed

3.5 / 5

Slot Games

5.0 / 5

Live Games

5.0 / 5

Our Review of Slots

If you want to play games only coming from essential providers, then stick to mr.play Casino. Its 1000+ slots are backed up by developers such as Microgaming, NetEnt, and Playtech, all three being innovative providers in the industry.

Pros

• More than 1000 slots are available
• Most games accept a minimum bet of at least £0.2
• You will find popular slot games like Starburst, 9 Pots of Gold, and Book of Dead
• Microgaming, NetEnt, and Playtech are among the providers

Cons

• A small variety of Jackpots and Megaways, with about 10 titles for each.

mr.play Casino Gallery

14. Gentleman Jim Casino Review

Gentleman Jim Casino Rating

Rating3.5 / 5

Look & Feel

5.0 / 5

Payout Speed

3.3 / 5

Slot Games

3.0 / 5

Live Games

4.5 / 5

Review on Slots

Gentleman Jim Casino has a small library of 130 slots from Pragmatic Play and Leap Gaming. The site includes 18 megaways, such as Big Bass Bonanza. Usually, bets start at £0.10.

As soon as you register on the platform, you can access the titles in the demo.

Pros

• Games from the popular Pragmatic Play
• Demo mode for the titles

Cons

• A small catalog of slots
• Only 2 developers

Gentleman Jim Casino Gallery

15. MrQ Casino Review

MrQ Casino Rating

Rating4.1 / 5

Look & Feel

5.0 / 5

Payout Speed

4.2 / 5

Slot Games

5.0 / 5

Live Games

5.0 / 5

We consider that MrQ Casino is one of the best sites for Microgaming, with one of the largest selections of titles from the software provider. Within this game collection consisting of 800 titles, you will also find Microgaming hits like Immortal Romance and Thunderstruck II. Another area we liked at this casino is the expansive 90+ jackpot selection.

However, the customer support at MrQ is where we had to draw some points. No phone support is available, which we typically recommend for urgent matters. Moreover, the live chat support is not available around the clock.

Pros:

• 800 slots in the collection, including Microgaming titles
• Solid additional selection from other providers
• 90+ jackpot options are available

Cons:

• Site navigation can feel unintuitive
• Customer support is not available 24/7

Alternatives:

The best Microgaming slot site alternative with a 24/7 customer support is LeoVegas. Other noteworthy options are NetBet and Pokerstars.

MrQ Casino Gallery

16. MadSlots Casino Review

MadSlots Casino Rating

Rating3.9 / 5

Look & Feel

4.8 / 5

Payout Speed

4.3 / 5

Slot Games

5.0 / 5

Live Games

4.5 / 5

Slots Review

MadSlots Casino’s slot catalog is quite diverse, and it holds 1000 titles from well-known providers, such as Play’n Go, Relax Gaming, Microgaming, and Pragmatic Play. The games have various themes and a wide range of features, such as cascading symbols, wilds, and clusters.

Once you create an account on the site, you can play the games in the demo mode and find out more details about each title by pressing the ‘info’ button.

Pros

• The slot collection has 1000 titles
• Popular providers, such as Pragmatic Play, Play’n Go, and Relax Gaming

Cons

• No games from NetEnt, Playtech, or Betsoft

MadSlots Casino Gallery

17. KnightSlots Casino Review

KnightSlots Casino Rating

Rating4.5 / 5

Look & Feel

5.0 / 5

Payout Speed

4.6 / 5

Slot Games

5.0 / 5

Live Games

5.0 / 5

Slots Review

KnightSlots offers its players a complete and extensive collection of slots with 4600 options and all game types available. The betting limits are also suitable for new and experienced players as they start at £0.10 and go up to £500. Furthermore, renowned developers provide most of the games.

Pros

• More than 4600 slots
• Over 60 providers
• Maximum bet of £500
• More than 240 jackpots

Cons

• Lack of games from Microgaming.

KnightSlots Casino Gallery

18. PokerStars Casino Review

PokerStars Casino Rating

Rating4.5 / 5

Look & Feel

5.0 / 5

Payout Speed

4.6 / 5

Slot Games

5.0 / 5

Live Games

5.0 / 5

Slots Review

Suppose you like a diverse and extensive library of slots. In that case, PokerStars Casino’s collection of 1100 titles is bound to satisfy your needs since it has different types, such as Classic Slots, Video Slots, Megaways, and Jackpots.

Furthermore, if you like to play jackpot titles, this gaming platform provides more than 200 options. The bets vary from £0.10 to £100.

Pros

• More than 1100 slot options are available
• Some of the most popular developers in the industry, such as NetEnt and Playtech
• You also have exclusive slots available

Cons

• There are no penny slots available.

PokerStars Casino Gallery

19. Pink Casino Review

Pink Casino Rating

Rating4.0 / 5

Look & Feel

5.0 / 5

Payout Speed

4.0 / 5

Slot Games

5.0 / 5

Live Games

5.0 / 5

Slots Review

Pink Casino’s gaming library is good for you if a compact but dense library is just what you are looking for or if you’re a newbie. This 578+ games selection has providers such as Microgaming, NetEnt, and Play’n Go and hosts games like Book of Dead and Mega Moolah variants.

Bets start at £0.10, and you can play over 40 jackpot titles.

Pros

• Microgaming, NetEnt, and Play’N Go provide the titles
• You can access popular games, such as Wolf Gold, Book of Dead, and Fishin’ Frenzy

Cons

• No bonus buy games are available.

Pink Casino Gallery

20. NYspins Casino Review

NYspins Casino Rating

Rating3.9 / 5

Look & Feel

4.0 / 5

Payout Speed

3.9 / 5

Slot Games

5.0 / 5

Live Games

5.0 / 5

Slots Verdict

NYspins Casino has opted for quality over quantity in its slot selection. Industry-leading vendors power each game, but more variety would improve the overall experience. Nonetheless, these slots have a wide bet range and varied themes, so options are provided to suit different preferences.

Pros

• Options provided by popular providers like Netent, Play’n Go, Microgaming, Evolution Gaming, and Thunderkick
• There are over 630 options provided, including Megaways and 3D slots

Cons

• The Auto-play feature is not available for all of the options
• The demo option is unavailable if you do not create an account on the site.

NYspins Casino Gallery

How We Review the Best Real Money Slots Sites UK

Our experienced gaming experts manually analysed each recommended slot site. Our reviewers followed our review criteria about bonus options, specific and general terms of use, responsible gaming, wagering requirements, banking, support, and gaming content.

Security of Slots Casino Sites

We considered several variables besides the UKGC licensing to determine a slot site’s security. For instance, a factor such as popularity and reputation can signify reliability.

If an operator has high and positive ratings across several reliable online review platforms and forums, you can take it as an indicator of trustworthiness.

Essential Third-party Game Testing Certificates

Many of our recommended UK slot sites have independent third-party organisations testing and evaluating their gaming software to ensure its fairness and functionality. To ensure the gaming quality is tested, we seek approval from eCOGRA, iTech Labs, Gaming Laboratories International (GLI), and similar testing labs.

Slots Variety from Trustworthy Software Providers

A wide range of slot games can make it harder to pick a single game but gives you more range and allows you to find a game tailored to your gaming style. We promote only UK slot sites that provide licensed content from industry-leading software providers with a proven track record.

Tested Online Slots Real Money Bonuses

• We examine the casino bonus offers and their wagering requirements
• We sign up and claim the bonus with a qualifying deposit or code
• We start wagering on qualifying games
• Once all bonus terms are met, we submit a request for a withdrawal
• Provide withdrawal verification documents (if necessary)
• Wait for the casino to approve the withdrawal and credit the bonus/winnings

We Manually Check Payment Methods

Alongside reviewing the availability of payment methods, we check the efficacy of each payment option. A few of the banking criteria include deposit and withdrawal limits, processing of transactions, and whether the casino or payment service charges any fees. At the very least, a casino should have the following payment methods available to all UK players:

• Visa
• MasterCard
• Boku
• Skrill or Neteller
• Pay by Phone
• Bank Transfer
• Neosurf
• PayPal

Keeping up to Date With the Latest Mobile Gambling Trends

We tasted several slot games in each of the three casinos using an iPhone 14 Pro Max and a Samsung s22, and the games worked exceptionally well, with no lags, crashes, or similar issues, on both devices. Of course, you can even have an older smartphone model and still enjoy optimal game performance.

Our experience has shown that most online casino players in the UK and beyond tend to play on mobile casinos. You should seek new mobile casinos if you want to play new mobile slots on their release date.

A mobile app is not necessary, but it may appeal to many mobile players.

At the very least, we ensure the slot site is compatible for use on mobile in-browser on all major operating systems: iOS, Windows, and Android. We recommend it only after manually testing a casino’s mobile functionality relating to gaming content, payments, support, security, and user experience.

Quick Slots Sites’ Bonuses Guide for Smarter Choices

• Choose UK Slot Sites With a Valuable Welcome Bonus: A valuable offer is a welcome bonuses with fair terms and acceptable wagering requirements, withdrawal limits and maximum bets. All our listed sign-up promos pass this test. For some offers, like the Barz Casino welcome bonus, the wager terms may seem slightly above average, but the bonus compensates with other favourable conditions.
• Compare Minimum Deposits: This way, you know whether your budget qualifies for any bonus. While there are many no deposit bonuses out there, many popular casinos impose a minimum deposit for slots bonuses (between 5 to 20 pounds).
• See Which Slot Games Qualify: Not all games will be playable with free spins, and some of the games will have different game weighting, which you should check out before playing with bonus funds (doesn’s apply with no wager bonuses).
• Check out Online Slots No Wagering Bonuses: For a small deposit of just £10, you can claim no wager bonuses at many of our listed casino operators, but PlayOJO is renowned for being a no wagering casino all-around. Regardless of the no-wager benefit, you should know the remaining conditions.
• Find Online Real Money Slots Sites with a Free Bonus for existing players: A casino can award you with a slots no deposit bonus for your active play, if you are a VIP member, or immediately after you create an account. The former case is to be found in any of UK’s casinos with VIP and loyalty programs. You’ll notice each of the no deposit bonuses above are cash bonuses (as opposed to free spins). But specified slot games qualify for each bonus, meaning you can play first-rate slot games and take advantage of the games’ features while redeeming your bonus at the same time.

You still need to read the terms for each slots deposit bonus.

King’s Top Tips to Choose Your Ideal UK Slot Site

Here’s what you should look at before you choose a licensed casino from our list of the best online slots real money UK sites:

1. Compare casinos to find a slot site with proper game filters
2. Look for medium-to-high volatility games
3. Find a casino with slots from leading providers
4. Check for slot-specific promotions, like free spins
5. The slots should have demo (fun) mode
6. Hit the Play button on this page when you’ve found a good slot site for your needs.

How to Sign Up on Slot Sites? Easy Start with a Free Bonus

Our expert guide helps you sign-up and start playing for free. Here’s how:

How to find online slots no deposit bonuses

Look for UK slots sites with no deposit free spins. Use our filter to select sign-up no deposit slot bonuses with favourable terms.  Note that as easy as the bonus terms may seem, you still have a limited amount of time (around 7 days, on average) to satisfy the remainder of the terms before the bonus expires.

With free spins for online slots, real money games can become a much better experience, because you have the opportunity to test the online real money slots sites yourself before depositing. No wagering and no deposit free spins give you the highest chance of walking away with an early positive bankroll.

If you choose from our selection of no deposit slots bonus offers, you are ensured to play on secure slot sites with free bonuses on sign-up and explore various slot games by top providers. These offers can result in a real money payout, but the fact that it doesn’t require a deposit generates a low expectation due to the equally low value of the spins bonus itself.

How to sign-up at online casino slot websites

1. Read our review and carefully choose your slots site
2. Prioritize independent slots online casinos for unique bonuses
3. Create a new account by filling the blanks correctly with your ID information
4. Complete the KYC (Know Your Customer) procedure

Why should you prioritize independent sites? Because with sister sites, there’s a chance you may get excluded from slot bonuses if you claim the same promotion twice or more across the network.

What is the best time to play online slots at UK sites?

There is no best time to play online real money slots because all games are governed by a Random Number Generator and pay out randomly. That being said, there is no way to uncover when a slot machine will pay other than hacking into the casino providers’ servers and manipulating something there.

The only way to improve your chances in slots is to play responsibly on safe, best-rated slot sites verified by KingCasinoBonus!

Types of Online Slots and Our Recommended Slot Sites

Slots come in all shapes and sizes these days: there’s an endless variety of types, from classic slots to video slots to progressive jackpots and Megaways. KingCasinoBonus experts introduce you to the most popular slot games by type, along with a variety of websites powered by the finest providers in the industry. Here are our recommendations:

Classic Slots

The original and simplest type of slot machine is the classic slot, which has three reels and symbols that remind of the classic one-armed bandit: fruits, bars, and sevens. Here are some of the best classic slots in UK online casinos and where you can find them:

• Fire Joker by Play’n GO – play at PlayOJO with no wagering bonuses or Mr.Q/MadSlots
• Book of Ra by Novomatic – BetFred welcomes you with 200 no wagering spins or try it at Luck casino with low wagering
• Cleopatra by IGT –  top IGT casinos like Bally Casino, Casushi Casino host it
• Double Diamond by IGT – Rainbow Riches has it (along with a top no wager bonus); also available at Buzz Bingo

Video Slots

Video slots have five reels and elaborate themes with cinematic cutscenes, bonus rounds, and special features. If you want to try out this type of slot, we compiled a list of top slot sites online in the UK that have them:

• Starburst (NetEnt) – found on virtually all NetEnt casinos and at PlanetSportBet, where you get low wagering spins for 20 pounds
• Gonzo’s Quest (NetEnt) – found at Monopoly Casinos, Luck Casino
• Immortal Romance (Microgaming) – available at Bally Casino
• Thunderstruck II (Microgaming) – Play at Wild West Wins casino

Progressive Slots

Slots with progressive jackpots have dynamic maximum pot sizes that increase in value as more players play until someone triggers the jackpot prize. Here are our picks:

• Mega Moolah by Microgaming – play at Zodiac Casino or Captain Cooks
• Divine Fortune by NetEnt – play at BetFred, Luck Casino
• Jackpot Giant by NetEnt –  MegaCasino has it

Megaways Slots

In Megaways Slots, symbols form across up to 117,649 paylines that make the reels change constantly:

• Bonanza (Pragmatic Play) – provided by BetFred
• Fishin Frenzy Megaways (Big Time Gaming) – available on Buzz Bingo
• Reel King Megaways – provided by Play Sunny Casino

3D Slots

3D slots use advanced graphics and animations to create an interactive and even more cinematic experience than video slots. Below, you can find the best examples of 3D Slots and where you can play them:

• Jack and the Beanstalk (NetEnt)- found in Mr. Q
• Steam Tower (NetEnt) – found at Play Ojo (no wagering free spins)
• Gorilla Go Wild (SG Digital) – found at Lottoland Casino

Top 10 Real Money Online Slots UK | KingCasinoBonus Rankings

The above table lists some of the most popular slot games with some of the best features and top game mechanics.

Book of Dead – best high-volatility slot

Book of Dead is our expert’s choice for the best high-volatility slot. Since UK players mainly seek this type of game, we selected Book of Dead, developed by Play’n GO, because it is packed with special features for real money players.

Key Features

• Expanding Symbol – Land a special symbol that expands across the reels.
• Free Spins – Landing 3 book scatter symbols awards 10 free spins with expanded special symbols.
• Gamble – Double your winnings up to 5x by guessing the correct card color.

With exotic Egyptian graphics, adrenaline-pumping gameplay, and huge payout potential, Book of Dead delivers an electrifying high-variance experience. You can retrigger the bonus round, which makes this a must-play high volatility slot.

Bonus Potential

If you’re a frequent Book of Dead player, we recommend taking advantage of slot bonuses with free spins on Book of Dead, like the one from 21 Casino giving 21 free spins on this game. This lets you experience all the bonus features with an average wagering requirement of 35x.

Starburst – best low-volatility slot

Starburst comes second in our top slots ranking, but it’s undoubtedly the best low-variance online slot game in the UK. Free sign-up bonuses on NetEnt’s slot make it a true classic.

Key Features

• Wild Symbol – The Starburst wild symbol appears on reels 2, 3 and 4 and expands to cover the entire reel.
• Re-Spins – Landing a wild symbol triggers up to 3 re-spins with sticky wilds in place.
• Bet Lines – With 10 fixed paylines, Starburst offers flexible betting options to suit all budgets.

With its cosmic theme, cascading reels and exciting re-spin feature, Starburst has cemented itself as one of the most popular low-volatility slots of all time. The vibrant graphics and synth soundtrack create an immersive, futuristic atmosphere. Frequent payouts make Starburst the perfect low-risk slot for both new and experienced players.

Bonus Potential

Regarding Starburst free spins bonuses, our expert recommends no deposit offers we tested, like the Starburst bonus at Space Wins. For a lower wagering requirement than Space Wins’ and an easier time, we believe PlanetSportBet’s bonus with a deposit of £20 is worth claiming (10x wagering).

Mega Moolah – best progressive jackpot slot

We chose Mega Moolah as the best progressive jackpot slot due to its popularity in the UK and beyond. Mega Moolah is a slot with multiple variations like Mega Money Wheel connected in the same network. All the games feature 5 reels, 25 paylines and the progressive jackpot slot fueled by Microgaming/Games Global.

Key Details

Key Features

• Four Jackpots – Mini, Minor, Major and Mega jackpots with various prize levels.
• Free Spins – Landing 3 or more scatters will trigger 15 bonus free spins.
• Wild Substitutions – The lion symbol acts as a Wild and substitutes for all symbols except scatters.

Explore the African wildlife on Absolootly Mad: Mega Moolah, the best progressive jackpot slot. Are you familiar with the record Mega Moolah has set? The game has awarded tens of millions in top prizes, including a record £17.9 million jackpot hit in 2022.

Bonus Potential 

Zodiac Casino has the most popular bonus for Mega Moolah: deposit £1 and get £20 to play the best progressive jackpot slot. Alternatively, you can check out Captain Cooks jackpot chances for £5.

What to Expect from Online Slots? Expert Insights

Set the right expectations from playing online slots. KingCasinoBonus have one key principle: approach the games responsibly and avoid chasing your losses, and you’ll have a great time! As experts, we aim to help you understand the random mechanics of online slot machines and the best ways to play them. Slots have low minimum bets and adjustable bet sizes, enabling you to stay within your budget if practised responsibly.

UK players may choose an online UK slot site for the following reasons:

• Custom experience: With a wide variety of themes and features, online slots can satisfy a wide range of UK player preferences;
• Beginner-friendly gambling: New casino players should start with simple games, and online slots are the most straightforward to play;
• 24/7 availability: Compared to their local counterparts, online slots are available 24/7;
• Mobile convenience: As they can be accessed from anywhere, they are very convenient for mobile players;
• New slot releases: Land-based slots are the same in every UK casino, while new online slot games are released every month;
• Engaging special features: Online real money slots possess unique symbols and game features like expanding wilds and progressive jackpots;
• Social ways to play: Online slots UK sites often facilitate social interactions through slot tournaments.

Best UK Online Slots Providers | Industry Giants Reviewed

Microgaming, NetEnt, Playtech, IGT, and Play’n GO are the industry’s most recognisable and most popular providers of slots. Each brand has a rich portfolio of online slots, and with each new release, they at least match, if not surpass, the quality of earlier games.

Players receive their games well for their grand visuals, sounds, and in-game mechanics and features. Some games, like Honey Rush, deviate from the traditional game layout and provide cluster pay.

Other games like Mega Moolah and Reactoonz have huge jackpots and are part of a game series that gets better with every new release.

#1 Microgaming/Games Global

Microgaming stands out as a titan in UK slot sites, with a vast array of video slot games that cater to every type of player, and record-breaking online jackpots, available at prestigious casinos like 32 Red, Grand Ivy, and Fun Casino.

Microgaming slots range from adventure-filled titles to relaxing, classic themes, whatever Microgaming casino you choose.

#2. NetEnt

A provider that consistently delivers dazzling games to UK slot sites is NetEnt. Their engaging video slots and jackpots like Divine Fortune are a mainstay in casinos like MrQ or mr.Play Casino.

The graphics, soundtracks and bonus features make NetEnt slots sites a top choice for UK players seeking premium online gaming.

#3. Play’n Go

Play’n Go revolutionized the UK slot site market with captivating TV-inspired themes and grid slots. Play’n Go slots like Book of Dead, Fire Joker, and Reactoonz have become must-plays for UK players.

Enjoy these thrilling games at the top Play’n Go casinos such as Betway, LeoVegas, and Casumo.

Recommended Payment Methods for UK Players

We additionally create and curate lists for casinos with specific payments:

• Boku casino list
• Pay by Phone casinos
• casinos with PayPal payments, and others.

Best Value in July: Slot Sites with Low Minimum Deposits

UK players looking for the easiest way to play slots should focus on low minimum deposit casinos. These allow you to spin real money slots starting from just 10p or 20p a spin. Get started with deposits as low as £5 or £10, and get more bang for your buck. Stretch low deposits into long slot sessions with bonuses with our selection of minimum deposit casinos for slots in July 2024:

1. Dragon Bet Casino – £1 minimum deposit casino with 175 online slots
2. Luck.com – best slot site with a £5 minimum deposit and 100 FSND on registration
3. Virgin Games – £10 deposit slot site with £25000 max cashout
4. Madslots – best slots bonuses with a £10 deposit
5. Monopoly Casino – no wagering slots with low deposit
6. BetUK – £10 minimum deposit, slots with no wagering
7. Voodoo Dreams – low deposit spins on Book of Dead

How to Play Slots Online Responsibly

1. Try the game for fun (if possible)
2. Give the game a test run with a small budget (£10-£50)
3. Place small bets
4. Ask a casino support assistant to help you set betting limits
5. Don’t start placing larger bets to compensate for losses
6. Play with a budget that you can afford to lose
7. Set gaming sessions (if possible)
8. Quit while you’re ahead
9. Don’t get carried away

Trusted and Tested: All UKGC-Vetted Slot Sites

The UKGC oversees all the best online slots real money UK sites we picked. Each operator complies with its Licence Conditions and Codes of Practice (LCCP) to ensure fair and quality gaming, player security, timely payouts, adequate player dispute resolution system, and user privacy protection.

The strict gaming and player protection standards and legal parameters the UK Gambling Commission set forth control every aspect of UK slot sites. Some operators hold multiple licenses, rendering them certified in payment security, account management, and gaming quality.

Pros and Cons of Online UK Slots Sites

Pros

• Guaranteed game quality
• UKGC-licensed
• Tailored bonuses for popular slot games
• Quick access to content from leading developers
• Vast choice of gaming content
• Suitable betting limits for casual players
• You can play slots for fun
• Claim personalised bonuses
• Earn points and rewards by simply playing

Cons

• Some casinos don’t offer a mobile app
• There’s a limited number of games on mobile casinos
• Gaming can become addictive

Become Slot Savvy with Our Glossary of Terms