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The Best Slot Sites in the UK for 2023

Online slots have become a popular pastime for UK casino players, offering a thrilling and entertaining gaming experience from the comfort of their own homes. With a very vast selection of interesting games available at the click of a button, it can be overwhelming to navigate the world of slots online.

Best casinos to play:

Atlantic Spins

200% Bonus & 30 Spins

Read Review

New Players Only 18+ (UK only). Minimum Deposit: £10. Maximum Offer: 200% Bonus up to £30 & 30 Spins [Starburst]. Bonus & Spins winnings must be wagered 35x before withdrawal. Spins expire after 24 hrs. Promo Code: PLAY30. Withdrawal T&Cs apply. Valid until 31/12/2023. View Full T&Cs. ...
18+ Gamble responsibly. BeGambleAware.org
New Players Only 18+ (UK only). Minimum Deposit: £10. Maximum Offer: 200% Bonus up to £30 & 30 Spins [Starburst]. Bonus & Spins winnings must be wagered 35x before withdrawal. Spins expire after 24 hrs. Promo Code: PLAY30. Withdrawal T&Cs apply. Valid until 31/12/2023. View Full T&Cs. 18+ Gamble responsibly. BeGambleAware.org
Jaak Casino

100% up to £10 + 10 Free Spins

Read Review

New players only. 18+. Min Deposit is £10. Max Dep. Max Bonus is £10 & 10 Spins on Starburst. Wagering requirements apply 35x. Promo Code: Jaak. Full T&Cs apply. ...
18+ Gamble responsibly. BeGambleAware.org
New players only. 18+. Min Deposit is £10. Max Dep. Max Bonus is £10 & 10 Spins on Starburst. Wagering requirements apply 35x. Promo Code: Jaak. Full T&Cs apply. 18+ Gamble responsibly. BeGambleAware.org
Grosvenor Casinos

Deposit £20, play with £50

Read Review

New Customers Only. Min Deposit and Max Bonus apply. Playable on selected games. Wagering requirements apply .Max win £2000. Full T&Cs apply. ...
18+ Gamble responsibly. BeGambleAware.org
New Customers Only. Min Deposit and Max Bonus apply. Playable on selected games. Wagering requirements apply .Max win £2000. Full T&Cs apply. 18+ Gamble responsibly. BeGambleAware.org
PriveWin

100% up to £100 + Free Spins

Read Review

New Players Only. Wager from real balance first. 50X wager the bonus. Contribution varies per game. selected games only. Wager calculated on bonus bets only. Bonus valid 30 days / Free spins valid 7 days from receipt. Max conversion: 3x the bonus amount or from free spins: ...
£20. Withdrawal requests void all active/pending bonuses. Excluded Skrill and Neteller deposits. Full T&Cs apply. 18+ Gamble responsibly. BeGambleAware.org
New Players Only. Wager from real balance first. 50X wager the bonus. Contribution varies per game. selected games only. Wager calculated on bonus bets only. Bonus valid 30 days / Free spins valid 7 days from receipt. Max conversion: 3x the bonus amount or from free spins: £20. Withdrawal requests void all active/pending bonuses. Excluded Skrill and Neteller deposits. Full T&Cs apply. 18+ Gamble responsibly. BeGambleAware.org

Fear not, this article will guide you through the most generous online slot bonuses, the most popular slot games of all time, and common methods of payment on slot websites, among a couple of other things.

Whether you’re an experienced slot machine player or a total newcomer to the world of online slots, this article has something for everyone. We’ve browsed the web to bring you the top slot websites in the UK, which is why you should now sit back, relax, and let us take you on a journey through the exciting world of online slots.

In this article, Gamblorium will transport you to the realm of online slots and provide valuable insights on:

  • Why slot machines are the most favoured game of all time
  • Recommendations on the best casinos with a wide selection of slots featuring bonus games and jackpots.

Everything You Need to Know About Online Slots: Why Play Casino Slots Online?

There are many advantages to playing slots online over traditional land-based casino slots. One of the main advantages is convenience – online slots can be played from anywhere at any time without the need to travel to a physical location.

Additionally, online slots offer a wider variety of games than their land-based counterparts, with a seemingly endless selection of themes, features, and bonus rounds. This variety ensures that there is something for everyone, regardless of personal preferences.

When choosing an online slot UK website, there are several important factors to take into consideration, such as safety and security, fairness of the games, and bonus offers. It’s important to choose a reputable and licensed online casino to ensure that your personal and financial information is protected and that the games are fair and random.

Our Methodology for Rating the Top Online Slots Sites

As the online gambling industry continues to grow, it becomes increasingly important to have a reliable and trustworthy way to evaluate the best online slot sites. That’s where our methodology comes into play, as we’ve developed a very comprehensive system for rating online slots websites based on a variety of criteria. Let’s take a look at them:

Safety and Security
This is perhaps the most important factor to us when evaluating online slot sites. We carefully review the security measures that are in place, such as SSL encryption and firewall protection, to ensure that players’ personal and financial info is always absolutely safe and secure. We also investigate the casino’s licensing and regulatory status to ensure that they are operating legally and ethically.
Fees and Limits
Another key consideration is the fees and limitations associated with each slot website. We examine factors such as deposit and withdrawal limits, processing times, and any associated fees.
Promotions
Casino slot players are always on the lookout for promotions, and we consider a range of factors when evaluating each site’s offerings. These include welcome bonuses, free spins, no-deposit bonuses, and ongoing promotions to ensure that players have access to a good variety of incentives and rewards.
Game Variety
Of course, the selection of games available is a critical factor when choosing an online slot site. We examine the variety of games on offer, including classic and video slots, progressive jackpots, and other popular casino games, to ensure that players have access to a wide range of options.
Mobile Play
As more players shift to mobile gaming, we evaluate each site’s mobile app and mobile play options. We consider factors such as compatibility, usability, and functionality to make sure that players can easily access their favourite games everywhere they go.
Payment Methods
The ease and convenience of methods of payment are other very important factors when rating online slots websites. We must always check and evaluate the range of payment options available, including credit and debit cards, e-wallets, and bank transfers, and assess the speed and security of each payment method.
Design & User Experience
The overall design and user experience of each online slot site are also critical to its success. We evaluate factors such as site speed, usability, and ease of use to ensure that players have a seamless and enjoyable browsing and gaming experience.
Customer Support
The quality of customer support is something that we must pay close attention to. We check the customer support availability, response times, and the helpfulness of the staff.

Top Online Slots Bonuses UK

Slot MachineOne of the most common bonuses found in online slots is the slot deposit bonus, which typically offers players a percentage of their deposit amount as a bonus. For example, a player who deposits £100 might receive a 100% bonus, giving them a total of £200 to play with.

Another common type of bonus is the slots signup bonus, which is offered to new players when they create an account with an online casino. This bonus can take many forms, such as free spins, no-deposit bonuses, or match bonuses, and is designed to encourage players to try out the casino’s offerings.

Other bonuses that are commonly found in online slots include reload bonuses, which offer players a bonus on their subsequent deposits, and loyalty rewards programs, which offer players perks and bonuses based on their level of play.

Best Welcome Bonus Slots Sites UK

Swift Casino

Free Spins

100% up to £50 / 50 FS

First deposit only. Min. deposit: £10, max. bonus £50. Game: Book of Dead, Spin value: £0.1. WR of 30x deposit + bonus amount and 60x Free Spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings & bonus amount of £5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds. First Deposit/Welcome Bonus can only be claimed once every 72 hours. Bonus Policy applies. Full T&C's apply. 18+ Gamble responsibly. BeGambleAware.org
Electric Spins

Free Spins

200 / 100 FS

First-time depositors only (18+ country restrictions apply). Min deposit: £10. Max offer: £20 Games Bonus & 100 Free Spins (on a game of our choice). Promo code: SPINIT. Any Games Bonus winnings, if applicable, must be wagered 60x before withdrawal. Any Free Spins winnings, if applicable, will be credited as bonus funds and capped at £10. FS are valid for 7 days and any winnings must be wagered 40x before withdrawal. Games Bonus win cap: £100 + original bonus amount. Wagering contribution varies by game. We reserve the right to deny bonuses based on abusive bonus activity across sites operated by the Company. Deposit balance is available for withdrawal at any time (UK only). General withdrawal restrictions apply. Valid until 31.12.2023. View Full T&Cs. 18+ Gamble responsibly. BeGambleAware.org
Spinzwin Casino

Free Spins

100 FS

New players only. Min deposit is £10. 1st deposit: 50 Free Spins on Starburst slot, 2nd deposit: 225% up to £200, 3rd deposit: 50% up to £200, 4th deposit: 25% up to £600, 5th deposit: 50 Free Spins on Turn Your Fortune slot. 50X wager the bonus. Bonus valid 30 Days from receipt/ free spins valid for 7 days from issue. Max conversion: 3x the bonus amount. Excluded Skrill deposits. Withdrawal requests void all active pending bonuses. Full T&C's apply. 18+ Gamble responsibly. BeGambleAware.org

The Most Common Online Slot Features

There are many features that make online slot machines exciting and engaging for players. Here are some of the most common features found in online slot games for UK players:

  • Wild symbols: They are a very common feature in slot machines. They substitute for other symbols on the reels to create winning combinations, increasing the chances of hitting a big payout.
  • Multiplier symbols: Multiplier symbols can also be found in many UK slot games. They multiply the payout of a winning combination by a certain amount, typically 2x or 3x.
  • Free spins: Free spins are another popular feature in online slot games. They offer players the chance to spin the reels without having to place a bet, and any winnings earned during free spins are typically subject to a multiplier.
  • Scatter symbols: Scatter symbols are unique symbols that do not need to appear on a payline in order to trigger a payout. Instead, they can appear anywhere on the reels and still trigger a payout or a bonus feature.
  • Bonus games: Bonus games are often triggered by scatter symbols or other special symbols, and offer players the chance to earn additional prizes or payouts. These bonus games can take many forms, such as pick-and-win games or spinning wheels.

Best Online Slots Sites

Looking for the best online slots to play? With so many options available, it can be tough to know where to start. That’s why we’ve compiled a list of the online slot websites based on various factors. Let’s take a look at it now!

Monster Casino

Free Spins

£1000 / 100 FS

Experts` pick
New players only. Min dep £20. Wager from real balance first. 50x wager the bonus. Contribution varies per game. Selected games only. Wager calculated on bonus bets only. Bonus valid 30 days. Free spins valid 7 days from receipt. Max conversion: 3x the bonus amount or from free spins: £20. Withdrawal requests voids all active/pending bonuses. Excluded Skrill deposits. Full T&C's apply. 18+ Gamble responsibly. BeGambleAware.org

Rise Casino

Free Spins

100 / 50 FS

Experts` pick
First-time depositors only (18+ country restrictions apply). Min deposit: £10. Max offer: 100% Bonus up to £10 Games Bonus & 50 Free Spins (on Fruit Blast). Promo code: GET50. Any Bingo Bonus winnings, if applicable, if applicable, will be credited as bonus funds and capped at £5. FS winnings must be wagered 40x before withdrawal. FS are valid for 7 days. Games Bonus win cap: £100 + original bonus amount. Wagering contribution varies by game. We reserve the right to deny bonuses based on abusive bonus activity across sites operated by the Company. Deposit balance is available for withdrawal at any time (UK only). General withdrawal restrictions & full T&Cs apply. Valid until further notice. 18+ Gamble responsibly. BeGambleAware.org

Jonny Jackpot

Free Spins

500 FS

Experts` pick
New players only. One welcome package per player. Min dep £20. All spins are on Book of Dead only. Spins winnings credited as bonus funds. Max winnings from BS are equivalent to the number of spins awarded. Bonus funds + spin winnings are separate to cash funds and subject to 35x wagering requirement (bonus only). £5 bonus max bet. Bonus funds valid for 30 days, spins valid for 10 days. Full T&C's apply. 18+ Gamble responsibly. BeGambleAware.org

When it comes to playing slot games online in UK online casinos, there are many different types of slots to choose from. Here is an overview of some of the most popular types:

Video Slots
Video slots are the most common type of online slot game. They typically have five reels and many paylines, and often feature exciting bonus features like free spins, multipliers, and wild symbols.
Jackpot Slots
Jackpot slots are similar to video slots, but they offer the chance to win much larger payouts, often through a progressive jackpot system that builds over time.
Megaways Slots
Megaways slots are a newer type of online slot that features a dynamic reel system, with the number of symbols on each reel changing on each spin. This can create thousands of potential paylines and lead to big payouts.
Grid Slots
Grid slots are a unique type of online slot machine that uses a grid-based system rather than traditional reels and paylines. Winning combinations are made by matching symbols in clusters.
Mobile Slots
Mobile slots are designed specifically for playing on mobile devices, with simple controls and intuitive gameplay.
No Deposit Slots
No deposit slots are online slots that can be played without the need to make a deposit. These are often used as a way for players to try out new games or online casinos without risking any money.
Classic Slots
Classic slots are based on the original mechanical slot machines and often feature simple gameplay and fewer paylines than video slots.
Branded Slots
Branded slots are online slot games that are themed around popular movies, TV shows, or other brands.

mobile-casino-appsIf you’re searching for the absolute best games on UK online slot sites or brand-new slot sites that accept UK players, here are a few mega-popular titles you might want to check out:

  • Book of Dead: This ancient Egypt-themed slot from Play’n GO is a favourite among many players, with its high volatility and potentially lucrative free spins bonus round.
  • Avalon: Microgaming’s Avalon is a classic online slot game that has stood the test of time. With its Arthurian legend theme and simple gameplay, it’s a great choice for beginners.
  • Big Bass Bonanza: This fishing-themed slot from Pragmatic Play has become increasingly popular in recent months, with its entertaining bonus features and potential for big payouts.
  • Who Wants To Be A Millionaire Megaways: Based on the popular TV game show, this online slot from Big Time Gaming features the Megaways reel system, which can create thousands of potential paylines.
  • Age of the Gods: Playtech’s Age of the Gods series includes several popular online slot games, all with a Greek mythology theme and exciting bonus features like free spins and multipliers.

What is a payout percentage?

A payout percentage, also known as a return-to-player (RTP) percentage, is the amount of money that an online slot game pays out to players in relation to the amount of money that has been wagered. For example, if a slot game has a payout percentage of 95%, this means that for every £100 wagered, the game will pay out £95 in winnings.

When playing online slot games, it is a good idea to look for games with higher payout percentages, as these offer better odds of winning. Many online casinos and slot game providers will publish the payout percentages of their games, making it very easy for players to compare and choose the best options.

Online Slot Sites Software Providers

The online slots industry is home to a number of software providers, each offering a unique range of games and features. Here are some of the most popular software providers in the industry:

Pragmatic Play Pragmatic Play has become famous for its fantastic graphics and very engaging gameplay. They offer a range of slot games, including classic slots, video slots, and jackpot slots.
Netent NetEnt is one of the most well-known software providers in the industry, offering a range of games with cutting-edge graphics and innovative features. Their games include classic slots, video slots, and progressive jackpot slots.
Microgaming Microgaming is another leading software provider, with a reputation for producing high-quality games with unique themes and features. They offer a wide range of games, including classic slots, video slots, and progressive jackpot slots.
Blueprint Blueprint Gaming is known for its unique and innovative approach to slot game development. They have a wide selection of games, including classic slots, video slots, and progressive jackpot slots.
IGT IGT is a leading software provider with a long history in the industry. IGT has many interesting games, including classic slots, video slots, and progressive jackpot slots.

Online Slots For Real Money Sites

Playing online slots for real money can be both exciting and risky. While there is the potential to win big payouts, there is also a risk of losing your money. However, the entertainment value of playing online slots can provide hours of fun and excitement. It’s important to be aware of the risks involved and to gamble responsibly when playing real money slots online.

Slot Site Tournaments

A slot site tournament is a competition among players at an online casino, where they play selected slot games and compete for a chance to win prizes. Different formats of the tournament may include timed or limited spin sessions, and the prizes can range from cash rewards to free spins, bonus funds, or even physical prizes such as holidays or gadgets. The goal is to accumulate the highest number of points by achieving the best possible results during the tournament.

Slot Sites Payment Methods

BankingThere are several popular payment methods available for playing online slots, including credit cards, e-wallets like PayPal, Skrill, and Neteller, bank transfers, prepaid cards such as Paysafecard, cryptocurrencies like Bitcoin, and mobile payment options like ApplePay and GooglePay. Let’s discuss all of them now.

  • Credit cards: are one of the most common payment methods, and they provide an easy way to deposit funds into online slot casino websites. However, certain credit card companies may charge fees for online gambling transactions.
  • E-wallets: like PayPal, Skrill, and Neteller offer a fast and secure way to deposit and withdraw funds. They provide an added layer of security and anonymity, but may also come with certain fees.
  • Bank transfers: are secure and reliable, but may take much longer processing times. They are a good option for larger deposits and withdrawals.
  • Prepaid cards: like Paysafecard provide a way to control spending and limit risk but may have limitations on the maximum amount that can be deposited.
  • Cryptocurrencies: like Bitcoin, Ethereum, and Litecoin provide anonymous and decentralized transactions, but can be volatile in value and may not be accepted at all online slot sites.
  • Mobile payments: like ApplePay and GooglePay are increasingly popular for their ease of use and speed. However, they tend to have limitations on the maximum amount that can be deposited.

The Best Slot Sites That Accept Paypal

If you’re looking for a safe and convenient way to deposit and withdraw funds at online slot websites, using PayPal is a great option. This e-wallet is widely accepted and offers fast and secure transactions. To make things easier for you, we’ve compiled a list of the best slot sites that accept PayPal.

Leo Vegas

Free Spins

100% / £100 / 50 FS

New reg only. Opt in & deposit £10, £25 or £50 within 7 days & further 7 days to wager cash stakes 35x to unlock reward (£50 on 2 deposits). 3 day exp. Wagering/game contributions vary. 25 wager-free spins x10p to added to Big Bass Splash with each qualifying deposit, 3 day expiry. Full T&Cs apply. 18+ Gamble responsibly. BeGambleAware.org

Captain Spins

Free Spins

520 FS

New players only. One welcome package per player. Min dep £20. All spins are on Book of Dead only. Spins winnings credited as bonus funds. Max winnings from BS are equivalent to the number of spins awarded. Bonus funds + spin winnings are separate to cash funds and subject to 35x wagering requirement (bonus only). Only bonus funds count towards wagering contribution. £5 bonus max bet. Bonus funds valid for 30 days, BS valid for 10 days. Full T&C's apply. 18+ Gamble responsibly. BeGambleAware.org

Megaways Casino

Welcome

18+ Gamble responsibly. BeGambleAware.org

High-Stake vs. Low-Stake Slots: Pros and Cons

Online casino slots come in different stakes, with high-stake and low-stake slots being two of the most popular. High-stake slots require players to bet larger sums of money for a chance to win bigger rewards, while low-stake slots require smaller bets for smaller rewards.

High-stake slots have a higher maximum payout and are suitable for players who enjoy taking risks, whereas low-stake slots are ideal for players who prefer playing for longer periods with smaller bets. The advantage of high-stake slots is the chance to win big, while the advantage of low-stake slots is their affordability.

However, both types of casino slots online provide entertainment and excitement.

Free Slots vs Real Money Slots in the UK

Free slots and real money slots are two options available at all top slot sites. Free slots are games that can be played without wagering real money, whereas real money slots require actual bets to be placed.

Pros:

Cons:

The advantage of free slots is that they provide risk-free entertainment, while the advantage of real money slots is the chance to win actual money. The disadvantage of free slots is that they cannot lead to actual winnings, while the disadvantage of real money slots is the risk of losing money.

New Slot Sites in the UK

Casino Lab

Free Spins

100% / £100 / 50 FS

New uk players only. £10 min deposit. £5 max bet using bonus. Max bonus £100. 40x wagering req. Issued bonus valid for 14 days. 50 spins credited instantly upon qualifying deposit on pre-selected game(s). Credited spins valid for 72 hours from. Max free spins winnings £100. Ewallets excluded. Full T&C's apply. 18+ Gamble responsibly. BeGambleAware.org

QueenPlay

Free Spins

£200 / 100 FS

New depositing players only. Min dep £10. Welcome Package split over 3 deposits. 35x Wagering requirement applies to match up bonus. 100 spins split to 20 spins a day for 5 days. Spins credited in specific games. Spins expire after 24 hours. 50x Wagering requirement applies to spins. Full T&C's apply. 18+ Gamble responsibly. BeGambleAware.org

Bonus Boss

Free Spins

300% / £300 / 100 FS

New depositing players only. Welcome 300% match up to £300 deposit bonus available via 2 deposits. Min deposit for a bonus is £10. Also, you can get up to £5 of no deposit funds. 40x wagering requirement for all types of bonuses. Bonus funds expire after 30 days. Full T&Cs apply. 18+ Gamble responsibly. BeGambleAware.org

How To Find And Choose Casino Slots Sites

When looking for the best UK online slots sites, it’s important to consider several crucial factors before making your decision and joining one of them. Firstly, make sure that the website is licensed by a reputable authority in the gambling industry.

Check for reviews and ratings online to check its reputation and trustworthiness among players. Also, the very best online slot websites should offer an excellent variety of games from top providers, as well as lucrative bonus offers and other promotions for their new and existing members.

Lastly, you should also consider trying out brand-new slot sites, as they may offer fresh and innovative games and promos. By considering these factors, you can find the best online slot website that suits your preferences.

FAQ

How do I know if an online slot site is safe and secure?

You can check for a valid SSL certificate, look for licensing information, read reviews from other players, and ensure that the site uses reputable payment methods.

Can I win real money playing online slots?

Yes, many online slots offer real-money payouts.

What is a random number generator (RNG) and how does it work in online slots?

An RNG is a computer algorithm that generates random outcomes in online slots to ensure fairness and randomness.

How do I make deposits and withdrawals at online slot sites?

You can typically use credit/debit cards, e-wallets, or bank transfers to make deposits and withdrawals at online slot sites.

Are online slot games fair and regulated?

Yes, reputable online slot sites are regulated by independent agencies that ensure the fairness and randomness of the games.

What is a wagering requirement and how does it affect bonus offers?

A wagering requirement is a condition attached to bonus offers that require players to wager a certain amount before being able to withdraw their winnings.

Can I play online slot games on my smartphone?

Yes, many online slot sites offer mobile versions of their games that can be played on smartphones and tablets.

Can I try out online slots for free before playing for real money?

Yes, many online slot sites offer free play versions of their games that allow players to try them out without risking any money.

How do I know if an online slot site is licensed and regulated?

You can check for licensing information on the website itself or on the website of the licensing authority.