Most players will perform an internet search when looking for the best online slots at a reputable and trustworthy casino website. The problem is that even the most rudimentary search will return thousands of results, so a team of experts has narrowed the search down and listed the best places to play slots online to save you the hard work.

Some of the Best Online Slots and Where to Play Them

  1. All British Casino (Book of Ra Deluxe) – Enjoy the best online slots
  2. Fun Casino (Major Millions) – The best of British fun
  3. Great Britain Casino (Gonzo’s Quest) – Generous bonuses and promotions
  4. BritainBet (Irish Luck Jackpot) – Spiffing good fun
  5. Slots n’Play (Fire Joker) – A top-notch online casino
  6. 10bet (Wild Wild Riches) – Filled with winning numbers
  7. PlayOJO (Blood Suckers) – Spin the reels and win
  8. Spin and Win (Cleopatra) – The slot winner’s choice
  9. Grosvenor (Fishin' Frenzy) – The UKs finest casino brand
  10. Casumo (Book of Dead) – Great variety of top tier slots
  11. Betway (Immortal Romance) – Grab yourself a bonus
  12. Magic Red (Wolf Gold) – Landing on lucky pay lines
  13. 32Red (Mega Moolah) – The colour of money
  14. Unibet (Big Bass Bonanza) – A passion for the slots
  15. Slots Magic (Fluffy Favourites) – Pulling wins out of a hat
  16. William Hill (Pixies of the Forest) – Unmatched UK slot variety
  17. Mr Green (Thunderstruck II) – The man with a slots plan
  18. Betfred (Age of the Gods) – Slots with High RTPs


All British Casino (Book of Ra Deluxe) – The Best Online Slots Overall

Eastern Daily Press:

Welcome bonus for new players only. Maximum bonus is 100% up to £100. Minimum deposit is £20. No max cash out. Cashback is cash with no restrictions. Full T&Cs apply.

With the iconic red post-box and telephone box, All British Casino wears its Britishness for all to see. The casino’s selection of the best online slots comes from some of the world’s top software game developers. These include titles like Book of Ra Deluxe, Thunderstruck II, and Dead or Alive from the likes of NetEnt and Microgaming. There’s also a choice of progressive jackpot slots, with Mega Millions offering a massive payday for a lucky winner.

The welcome bonus of 100% up to £100 is pretty ordinary. However, it’s worth noting that the wagering requirements for withdrawals are relatively low at just 35x. There are also plenty of ongoing promotions, including a cashback of 10%, as well as a generous on-request VIP scheme. The website is easy to navigate, with few fancy features. For mobile players, there’s no need for a separate mobile app.


  • Fast payouts
  • Many top-tier software providers
  • Huge selection of slots


  • Few bonuses and promotions

Fun Casino (Major Millions) – All Fun and Games

Eastern Daily Press:

Welcome bonus for a new players only. Maximum bonus is 100% up to £123. Min deposit is £10. No max cash out. Maximum bet while playing with a bonus is £5. Note that full T&Cs apply.

As the name implies, Fun Casino is a bright, breezy, and colourful website. The vast majority of games on its roster are the best online slots, with a total of 163 titles to choose from. These are provided by developers like Novomatic, Microgaming, IGT, and Pragmatic Play. For players looking for even bigger wins, there are plenty of progressive games to choose from, including Major Millions, Tunzamunni, and Treasure Nile. Fun Casino has two reputable licenses, one from the UK Gambling Commission and the other from the Malta Gaming Authority.

There’s a matched welcome bonus of 100% up to £123. Because of the focus on slots, there are ongoing tournaments as well as monthly slot challengers. However, there’s no loyalty program to reward VIPs. Those using their mobile devices use an app that works well on iOS and Android devices. Even better, players can try out all the best slots online in demo mode.


  • Many popular slots
  • Great bonus offers
  • Many slots with high RTPs


  • No VIP loyalty program

Great Britain Casino (Gonzo’s Quest) – Putting the Great into the Casino Slots

Eastern Daily Press:

New players only. £10 min fund. 65x bonus wagering requirements. Max bonus conversion to real funds equal to lifetime deposits (up to £250). Full T&Cs apply.

Having a regal crown as its symbol, Great Britain Casino isn’t shy about letting UK players know it’s a place where they can feel at home. In fact, slots lovers will find over 400 of the best online slots here. These come from a long list of software game providers, including NetEnt, Microgaming, Blueprint, and Pragmatic Play, to name just a few. As for the games, all the most well-loved titles, such as Gonzo’s Quest and Starburst are available.

Great Britain Casino has a huge number of generous bonuses and promotions. The welcome bonus for new sign-ups making their first minimum deposit of £10 is up to 500 free spins on the Starburst slot. Then there is the Turbo Wheel, a means of winning between 5 - 50 free spins, Prize Draws, Trophy Rewards, PRO Free Spins, Cash Drops, GoPro Giveaways, and Summer Giveaways. Take note that the rollover requirements are high at 65x. Mobile players have their own mobile website, guaranteeing a faster and more stable playing experience.


  • Massive selection of slots games
  • Optimised website for mobile play
  • 24/7 live chat customer support


  • No mobile casino app

BritainBet (Irish Luck Jackpot) – Over 800 Slots to Choose From

Eastern Daily Press:

New players only. Wager from real balance first. 50X wager the bonus. Contribution varies per game. Selected games only. Bonus valid 30 Days from receipt. Full terms apply.

BritainBet is a licensed website better known for its sportsbook. However, this best online slots library is well-stocked, with over 800 titles from some of the most well-known and trusted game developers in the world. Not only are there everyone’s favourites like Gonzo’s Quest and Starburst, but also plenty of jackpot games like Irish Luck Jackpot and Temple of Iris Jackpot.

All new players are rewarded with a generous first deposit bonus of 200% up to £50 for a minimum deposit of £20. There are no free spins. Other promotions include a weekly Slots Warriors Leader Board reward, VIP program, cashbacks, Saturday Spinner reward, and a Sunday-Funday bonus of up to £500. As for payment options, both fiat and cryptocurrencies are welcome. Mobile players don’t need a separate app to play as the website is optimised.


  • Many banking methods
  • Great welcome bonus
  • Easy-to-use website design


  • Long withdrawal wait times

Slots n’Play (Fire Joker) – Home to All Slots Lovers

Eastern Daily Press:

New players only. Offer valid upon 4 deposits. Min deposit £20. Welcome package split over 4 deposits. Max bet limitations per spin apply: £4. Full terms and conditions apply.

First launched in 2021, Slots and Play has a couple of first-class gaming licenses, one from the UK Gambling Commission and the other from the Malta Gaming Authority, meaning players’ funds and data are protected. Additionally, all games are tested to ensure outcomes are fair. Slot players will find over thirty software developers like Evolution, Microgaming, NetEnt, and Pragmatic Play, resulting in a massive selection of the best online slots covering all types of themes.

New players receive a welcome bonus across the first four deposits. All in all, these add up to £100 plus 100 Free Spins. There are also rewards like free spins, faster withdrawal times, and monthly cashback prizes. Slots players that prefer mobile to play games don’t need to download a separate app, as all the slot tiles play smoothly on their mobile.


  • Lots of top slots games
  • Many payment options
  • Games from top-tier providers


  • No 24/7 Live Chat support

10bet (Wild Wild Riches) – Fully Licensed and Secure Slot Site

Eastern Daily Press:

New Customers only. Wager bonus 40x within 15 days. Max winnings = 10x bonus. Free spins validity: 7 days. Free spins max. winnings = £100. See full terms here.

Though 10Bet casino is based in Malta, it has gaming licenses from both the Malta Gaming Authority and the UK Gambling Commission. Over 690 of the best online slots are available, ranging from well-known classics to cutting-edge 3D graphic slots from providers like Evolution, Pragmatic Play, NetEnt, and Red Tiger Gaming. Microgaming also provides the lion’s share of over 25 progressive jackpot slots.

New players looking for the welcome bonus will need to sign up with their debit cards in order to be eligible. The minimum withdrawal is just £10, as is the minimum deposit. There’s also a reload bonus and a free spins promotion. As for a loyalty program, 10Bet offers the Ten Club. However, it’s aimed at high rollers and, as a result, is by invitation only.


  • Lots of top software providers
  • 128-bit data encryption
  • Mobile app for iOS and Android


  • Few bonuses and promotions

PlayOJO (Blood Suckers) – A Massive Number of Slot Games

Eastern Daily Press:

First deposit only. 50 Free spins on Book of Dead slot. Free spin valued at £0.10. Full terms and conditions apply.

Having launched in 2017, PlayOJO has amassed a huge selection of the best online slots. In fact, there are an astounding 700+ games, including a number of progressive jackpots. All these games come from top-notch providers that include Merkur, Microgaming, Yggdrasil, and NetEnt. Players can enjoy some old favourites such as Starburst, Blood Suckers, and Big Bass Bonanza.

As far as the welcome bonus goes, it’s rather on the small side. However, it comes with zero wagering requirements. Among other promotions, there are a number of exciting offers, including a ClubOJO tiered Loyalty Program, PlayOJO Kickers Daily Bonuses, and the Reel Spinoff Slot Tournaments. The PayOJO website is as easy-to-use as it is easy on the eyes. All the menus are practical, and the site navigation is first-class, with simple headings and titles.


  • Lots of progressive jackpot slots
  • Both 3-reel and 5-reel games
  • Slots from many top game producers


  • Lack of telephone customer support

Spin and Win (Cleopatra) – An Excellent Slot Platform

Eastern Daily Press:

First deposit only (min £10). Max bonus £500. Valid 7 days on selected slots. 40x wagering on the sum of deposit. Full T&Cs apply.

Spin and Win is a basic but good-looking website that hosts over 200 of the best online slots. With a well-represented cross-section of top game providers, like Evolution, NetEnt, Microgaming, and Play’n GO, it’s possible to find some of the most popular slots in the world. These include favourites like Cleopatra, Gonzo’s Quest, Raging Rhino, and Fluffy Favourites.

Players can sign up and make a minimum deposit of £10 using one of many banking options. All new players making their first deposit are rewarded with a welcome bonus of 100% up to a very generous £500. There’s also a constantly changing roster of bonuses and promotions, which can be seen on the website’s Promotions Page. There’s no separate app for mobile players. Spin and Win are a top choice of UK slot casinos thanks to their great withdrawal speeds, prompt and efficient customer support, and excellent selection of slot games.


  • Excellent for playing mobile slots
  • Live Chat customer support
  • Quick withdrawals


  • Few ongoing promotions

Grosvenor (Fishin' Frenzy) – The Experienced Casino Brand

Eastern Daily Press:

New customers only. Min deposit and max bonus apply. Playable on selected games. Wagering requirements apply. Max win £2000. See full terms here.

Grosvenor is a well-known and respected brand throughout the UK, thanks to a number of land-based casinos on their books. However, when it comes to online gaming, they have built a stellar reputation as being a great place for UK slots payers to spend some time. After all, all the biggest game developers are represented, with the likes of Microgaming, IGT, NetEnt, and Novomatic providing the best online slots. These include Fishin’ Frenzy, Rick and Morty Megaways, Gonzo’s Quest Megaways, Jammin’ Jars, and Book of Ra.

First-time players will need to make a minimum deposit of £20 to receive the welcome bonus of £30. As for other promotions, there are daily and weekly offers. A Game of the Week Promotion gives participating players free money on pre-selected slot games. The website of Grosvenor Casino is classy and has an air of sophistication. Thanks to an optimised website, no separate app is required for mobile players.


  • Huge number of the most popular slots
  • Generous loyalty program
  • Slots from top game developers


  • Small welcome bonus

Casumo (Book of Dead) – A Galaxy of Slot Options

Eastern Daily Press:

New UK customers only. Opt-in required. 20 Bonus Spins on “Sahara Riches Cash Collect” and 100% Deposit Bonus up to £25 on first deposit. Min. deposit £10. Full terms and conditions apply.

Without a doubt, Casumo casino is a fan favourite when it comes to enjoying the best online slots playing experience for UK players. The website is bright and colourful with a pizazz that stands out from other casino sites. The selection of slots has over 2,000 titles. The best-known include Book of Dead, Big Bass Bonanza, and Gonzo’s Ques. There are also many progressive jackpot games like Mega Moolah, Immortal Romance, and Sweet Bonanza. The majority of their best online slots come from the leading game developers NetEnt and Microgaming.

Though the welcome bonus is nothing special at 100% up to £25 plus 20 bonus spins, there are a ton of other promotions to take up the slack. These include Daily Cash prizes, Daily Drops and Wins, as well as generous giveaway programs. For the best mobile playing experience, simply log on to their main website and begin playing.


  • Many high RTP slots
  • All slots have demo mode
  • Great mobile app


  • No telephone customer support

Betway (Immortal Romance) – A UK Slots Institution

Eastern Daily Press:

New customers only. Opt-in required. 100% match bonus up to £50 on first deposit of £10+. This offer is valid for 7 days from your new account being registered. Full terms apply.

As one of the biggest gambling brands in the UK, Betway offers their players a great selection of over 200 exciting slots from game providers like Microgaming and NetEnt. The best online slots, like Immortal Romance, Game of Thrones, and Thunderstruck II, all come with generous RTPs. There are also plenty of progressive jackpot slots for those players dreaming of the biggest wins, including the well-known favourite Major Millions.

The welcome bonus comes in three stages for new players making their first deposits of at least £10. The loyalty program, BetwayPlus, allows players to earn “Tier Tickets” that can be later redeemed for additional bonuses. The Betway website is both good-looking and easy to navigate. Mobile players can utilise a mobile app, though all games work perfectly well when played directly over the internet.


  • Popular casino brand
  • Games rated by eCOGRA
  • 400+ slots


  • Wagering requirements on the high side

Magic Red (Wolf Gold) – Win with the Dark Arts

Eastern Daily Press:

New players only. Min deposit £20. Offer valid for 24 hrs. Wagering requirement x35. See full terms here.

Magic Red has all themes covered for players looking for a huge selection of the best online slots. With all the popular titles coming from top providers like NetEnt and Microgaming, there’s something here to keep everyone immersed and happy. In addition, all games feature excellent graphics and soundtracks.

The welcome bonus is worth up to £25 plus 25 free spins. Magic Red Casino has two gaming licenses – one from the UKGC and the other from the MGA. Banking methods come with many options, with both minimum deposits and withdrawals being just £10. Mobile gaming works so well within the mobile’s own browser that there’s no need to install a separate app.


  • Easy-to-navigate website
  • Lots of banking options
  • Many top slots


  • Lack of 24/7 live chat customer support

32Red (Mega Moolah) – For the Easy-Going Slots Player

Eastern Daily Press:

New accounts only. Min. £10 deposit. 50x wagering on bonus. Super Spins wagering 30x. Game contributions vary. Max stake applies. 7 day expiry. See full terms here.

With a roulette-inspired name, 32Red offers an easy-to-use website interface that allows players to find their way around easily. The online casino launched in 2002 and has a gaming license from the Government of Gibraltar. Some of the best-known providers, including NetEnt, offer over 320 titles. Whether a player is looking for classic 3 or 5-reel slots or completely up-to-date progressive jackpot machines like Mega Moolah and Major Millions, there’s a game here for every taste.

New players that make a first deposit of a minimum of £10 with a debit card receive a welcome bonus of 150% up to £150. There’s an invite-only tiered loyalty program called “Club Rouge”. Apart from debit cards, there is a good selection of banking methods for both deposits and withdrawals. For example, Visa, paysafecard, and Entropay. 32Red Casino is a great option for players looking for the best online slots.


  • Plenty of progressive jackpot slots
  • Both 3 and 5-reel slot machines
  • Offer some high RTP slots


  • Relatively small welcome bonus for new players

Unibet (Big Bass Bonanza) – A Slots Selection Second to None

Eastern Daily Press:

New customers only. Min deposit £10. Money back as casino bonus. Bonus expires after 30 days. Wagering requirements apply - 50x. Further T&C's apply.


  • Well-known casino brand
  • Promotions every day
  • Super-fast withdrawals


  • Few progressive slots

SlotsMagic (Fluffy Favourites) – Casting Winning Spells

Eastern Daily Press:

First deposit only. Min. deposit: £10. Max. bonus £50. Game: Rich Wilde and the Book of Dead, Spin Value: £0.10. Max Extra Spins: 50. Full T&Cs apply.


  • License from the Malta Gaming Authority
  • Mobile friendly website
  • 24/7 live chat customer support


  • Few withdrawal methods

William Hill (Pixies of the Forest) – A Reliable Casino Name

Eastern Daily Press:

New customers only. Opt in required. 1x per customer. Golden Fields only. Min £10 stake. Max 100 Free Spins at 10p per spin. Max redeemable £30. See full terms here.


  • Well-respected casino brand
  • All slots have free play
  • Excellent mobile app


  • Few software game providers

Mr Green (Thunderstruck II) – A Slot-Playing Cheeky Chappie

Eastern Daily Press:

New UK customers only. Opt-in required. 1x per customer. Free spins on Lucky Mr Green only. Max 20 free spins at £0.10/spin with 35x wagering. Spins expire 72 hours from issue. Full terms apply.


  • High-tech games and software
  • More than 200 slot machines
  • Large number of bonuses and ongoing promotions


  • Not many banking methods

Betfred (Age of the Gods) – The Casino Veteran

Eastern Daily Press:

New casino customers only. £10 min transfer & stake on casino slots within 7 days. Max bonus 200 free spins on selected games. Free spins expire after 7 days. Full T&Cs apply.


  • Superb loyalty club
  • Useful betting app for mobile
  • Big progressive jackpot slots


  • Minimum withdrawal times of 48 hours

Choosing our Best Online Slots – All You Need to Know

Every online slots player is looking for the best bang for their buck. However, choosing from a massive selection of slot sites, each with its own multitude of options, is no simple task. So to help make the correct decision, below are listed the most important elements all players should check before depositing any funds into a new online casino site.

Find a High RTP

As mentioned by, the optimal way to play the best online slots is to ensure the bankroll lasts as long as possible. One means to guarantee a longer-lasting gaming session is to check the slot’s RTP%. This will give players an idea as to how much of their spent funds might be returned as prizes.

Choose a Reputable Games Developer

It’s always a good idea to check the most popular slots from each software provider. This gives an idea of the quality to be expected across a company’s range of slot offerings.

Look at the Slot Categories

Scanning all the best online slots available in any casino’s games lobby to find a slot to play can be a time-consuming task. That’s why it’s a good idea to break the slots down into themes or categories. By narrowing down the selection to bite-sized chunks, finding the perfect slot games is going to be a lot easier.

Variety of Slots

With their simple gameplay and straightforward betting, it’s no surprise that the best online slots are the most popular genre in the online casino industry. All players can find a theme to their liking. These cover every possible option, including ancient civilisations, Marvel comics, fishing, myths, and animals to name a few.

Play for Free

Many of the best online slots can be played for free in demo mode. Though it’s not possible to win any real money prizes, free play represents a great means of getting to know the slot’s functions, bonus rounds, and payout potential.

Our top 5 Online Slots

Though choosing the best online slots is going to be pretty subjective, there are, nevertheless, some important factors to keep in mind. To start with, it’s essential to choose a slot with a high RTP%. Secondly, games with a higher number of paylines have a greater chance of winning. You should also check out the slot’s volatility. With that in mind, here are five of the best slots available to UK players.

Gonzo's Quest

Way back in 2013, NetEnt came out with a winning slot that took the online casino world by storm.  Though by today’s standards, the graphics are starting to show their age, the exciting game still offers players a thrilling adventure as they follow the plucky conquistador Gonzo as he searches Central America for hidden gold. Instead of regular reels, the game has an Avalanche feature whereby the symbols fill empty spaces as they fall from above. With a pretty average RTP of 95.97%, there’s a possible x2500 max win with this medium volatility game.


Without a doubt, the Starburst slot from NetEnt is one of the most popular slots in the world, with its 3D graphics and cool soundtrack. Featuring the standard 5-reels, 3-rows and 10 pay lines, Starburst has a minimum betting limit of £0.01. Though the volatility is low, and the RTP is slightly below average at 96.09%, it’s possible to win the largest payout of 50,000 coins.

Dead or Alive 2

With its Wild West theme and famous characters from the era, including Billy the Kid, Della Rose, and Jesse James, this is one of the best online slots from NetEnt and has all the makings of a great game. Featuring the classic layout of 5-reels and 3-rows with 9 pay lines, its above-average RTP of 96.82% gives players a chance of winning 100,00 times their bet. There’s a free spins feature that rewards players with multiplying Wilds.

Big Bass Bonanza

Pragmatic Play has produced a doozy when it comes to this fishing-themed slot. Symbols are all fishing related and include tackle boxes, fishing rods, and various types of fish. The bass itself is the Scatter symbol and rewards players with a free spins bonus round. The 5-reels, 3-rows and 10 pay lines can be played with a minimum bet of just £0.01. Having an RTP of 96.7%, this high volatility slot allows up to 46656 possible ways to win.

Wolf Gold

A night below the starry skies of North America in the sacred lands of the native tribes is the setting for this 5-reel, 3-row slot with 25 pay lines. Apart from the low-paying playing card symbols, there are eagles, pumas, and a stallion; the lone wolf is the Wild and can pay out a prize of 500 coins. In addition to being able to land up to 250,000 coins, there are three jackpots on offer, the Mini, Major, and Mega.


What are the best online slots to win money on?

Perusing the games lobby of any of the above online casinos will literally reveal thousands of excellent slot machines. However, the perfect one is going to be subjective. Some players enjoy a narrative to their game. Others are looking out for bonus games and free spins. Providing the slot offers a high RTP% and comes with a generous bonus for new players, then it’s a worthwhile pursuit.   

What are the best slot sites?

With so much competition between online casinos to attract and retain players, many promote more or less the same bonus types and cash incentives when it comes to promotions. Do check that the site has games from favoured software providers, as this guarantees your chosen game titles will be available to play.

What is a good RTP for slots?

Though many players are beguiled by the theme and design of a particular slot, it’s best to ignore everything but the RTP% (Return to Player). The RTP% is the single most important factor in how much bankroll gets returned over time. The higher the RTP, the greater the chance of receiving more cash back.

What is a payline in a slot game?

By spinning the reels of a slot machine, a player hopes that when they stop, the symbols will align in a certain pattern. One that hopefully leads to a payout. This is the “pay line.” Years ago, slots were simple affairs and had but a single pay line. However, with advancing technology, today’s slot machines come with multiple pay lines.

Responsible Gambling: Due to the high stakes and adrenaline-inducing nature of gambling, some gamblers fall into problem gambling and addiction. After all, the rush from winning can be a powerful incentive to keep playing. The term “responsible gambling” is often used throughout the iGaming industry that informs players of the tools online casinos offer those gamblers with difficulties. These include setting spending and time limits, self-exclusion, and prominent warnings about the adverse effects of problem gambling. In the UK, organisations like GambleAware and GamCare can be contacted for practical and sympathetic advice.

DISCLAIMER: Only gamble if you are of legal age in jurisdictions where gambling is completely legal. Never gamble with more than you can afford. Once you’ve exhausted your bankroll, end your session. Always gamble responsibly.

This article is brought to you by Amici IT and does not necessarily represent the views of The Herald.