Online Slots UK

Welcome to the dedicated online slots section of Slotsia – here is where you can browse a selection of some of the best slot games around. These are from a range of the best providers and casinos and we have taken care to ensure that there are many different genres for you to pick from.

Should you find a top slot title that takes your fancy, head over to our no deposit bonus section and try it out with a great bonus offer!

Best Online Slot Casino Sites

You will not come across any major online UK casino that does not have online slots. However, the range of games and providers will vary depending on where you choose to play – below you will find our hand-picked list of the best sites to play at as a UK player, with each offering a unique welcome bonus.

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Mr Green
Welcome Bonus Get 50 Free Spins on Lucky Mr Green When You Sign Up
Casino Highlights
  • High-quality games
  • Loyalty scheme
  • 50 Bonus spins!

18+. Play Safe. New UK customers only. Opt-in required. 1x per customer. Free spins on Lucky Mr Green only. Max. 50 free spins at £0.10/spin with 35x wagering. Spins expire 72 hours from issue. Game, country, currency, player restrictions and terms apply.

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Kingdom Ace
Welcome Bonus 100% up to £100 + 10 Free Spins
Casino Highlights
  • Over 4,700 games
  • 24/7 live chat support
  • Loyalty Club
  • Support from top game providers
18+. New players only. Full terms and conditions apply. A minimum deposit of £10 applies. Free spins are available for 24 hours. 50x wagering applies. Always gamble responsibly. Begambleaware.org
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Bluefox Casino
Welcome Bonus 50% up to £100 + 25 Free Spins
Casino Highlights
  • Tiered welcome bonus
  • Over 2,700 games
  • 24/7 customer support
New players only. Opt-in Required. 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 from receipt/ free spins valid for 7 days from issue. Max conversion: 3x the bonus amount or free spins: $/€/£20. Excluded Skrill and Neteller deposits. Withdrawal requests voids all active pending bonuses. Full Terms Apply.  
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Fortune Mobile Casino
Welcome Bonus 200% up to £ 500 + 150 free spins
Casino Highlights
  • Tiered welcome bonus
  • Games from top providers
  • 24/7 customer support
  • Loads of reload bonuses
First 3 deposits only. Min deposit £10. Max total bonus £500 and 150 spins. 30x wagering (dep + bonus). 30x on spins, 4x conversion, bonus and spins valid on selected slots Full T&C’s apply.
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Videoslots
Welcome Bonus Up to £200 + 11 no wager spins on 1st deposit
Casino Highlights
  • 11 no wager spins on first deposit
  • 100% deposit bonus up to £200
18+. New players only. 11 Welcome Spins Wager-free and 100% up to £200 on your 1st deposit. Min. deposit £10. 7 days to activate the spins. Bonus spins expire 24 hours after activation. Activate the Welcome Bonus within thirty (30) calendar days under the ‘My Bonuses’ section. 100% bonus up to £ 200 will be paid out in 10% increments to Main Account balance. 35x wagering. Play Responsibly. Full T&Cs apply. BeGambleAware.org
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Betfred Casino
Welcome Bonus Stake £10 + get 200 Free Spins
Casino Highlights
  • Stake £10 to unlock 200 free spins
  • Household name
  • Great slots

New customers only. Opt In required. £/€10 min stake on Casino slots within 30 days of registration. Max bonus 200 Free Spins on selected games credited within 48 hours. Free Spins expire after 7 days. iOS app restrictions may apply. Email/SMS validation may apply. Not available in NI. Full T&Cs apply.

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Duelz Casino
Welcome Bonus Deposit match up to £100 + 100 Free Spins
Casino Highlights
  • Deposit match and free spins
  • Huge games library
  • Live casino experts

18+ new players only. Min deposit: £20. Max £100 bonus. Max bet with active bonus: £2. Wagering required 100% match bonus: 30x deposit + bonus. Max win from welcome bonus: £500. 100 Free Spins are given out 20 per day on Book of Dead for 5 days in a row. Max Free Spins winnings: £100. Free Spins winnings credited as bonus money with 45x wagering & 3 days expiry. Deposit bonus & Free Spins wins are forfeited 30 days after bonus is credited if the wagering is not met. Game weighting and restrictions apply. Play Responsibly www.begambleaware.org. Full T&C’s apply.

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Casushi Casino
Welcome Bonus Get £50 Bonus + 50 Bonus Spins on Book of Dead
Casino Highlights
  • £50 Welcome Bonus
  • 50 Bonus Spins on Book of Dead
  • Loyalty Rewards for Regular Players!

18+. New players only. 100% bonus on first deposit up to £50 plus 50 Bonus spins (30 spins on day 1, 10 on day 2, 10 on day 3 for Rich Wilde and the Book of Dead slot only. Min first deposit £10. Max bonus £50. Max bonus bet £5. Max bonus cash-out £250. 40x wagering requirements. Bonus expiry 30 days. Bonus spins expiry 2 days. Game restrictions apply.  Further Terms Apply. BeGambleAware.org.

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FruitKings
Welcome Bonus 100% up to £50 + 100 spins on Book of Dead
Casino Highlights
  • Great gamification
  • Generous welcome package

18+. New Players only. 100% bonus on first deposit up £50 & 100 Bonus spins (50 spins on day 1, 25 on day 2, 25 on day 3) for Book of Dead slot only. Min first deposit of £10. Max bonus £50. Max bonus bet £5. Max bonus cash-out £250. 40x wagering requirements. Bonus expiry 30 days. Bonus spins expire after 48 hours. Game restrictions apply. Further Terms Apply

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Electric Spins
Welcome Bonus 100% Up To £20 & 100 Free Spins Activate using code: GET100
Casino Highlights
  • Up to £20 & 50 Free Spins
  • Promo code: GET100
  • Casino launched in 2021
First-time depositors only (18+ country restrictions apply). Min deposit: £20. Max offer: 100% Bonus up to £20 Games Bonus & 100 Free Spins (on Starburst). 20 Free Spins will be credited per day, across 5 days. Promo code: GET100. Any Games Bonus winnings, if applicable, must be wagered 60x before withdrawal. FS are valid for 7 days and any winnings must be wagered 99x 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 & full T&Cs apply. Valid until 31.12.2022.
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Atlantic Spins
Welcome Bonus 100% Up To £100 & 100 Spins
Casino Highlights
  • £100 and 100 bonus spins in bonus
  • Over 400 games
New Players Only 18+. Minimum Deposit: £20. Maximum Offer: 100% Bonus up to £100 & 100 Spins on Starburst. Players will be credited with 20 Spins per day, across 5 days. Bonus & Spins winnings must be wagered 35x before withdrawal. Spins expire after 5 days. Promo Code: PLAY100. Withdrawal & full T&Cs apply. Valid until 31/12/2022. www.begambleaware.org.
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Viva Fortunes
Welcome Bonus 100% Up To £10 & 50 Free Spins Activate using code: GET50
Casino Highlights
  • 200% bonus for new players
  • Deposit £10, play with £30 + 30 free spins
  • 500+ slot games
First-time depositors only (18+ country restrictions apply). Min deposit: £10. Max offer: 100% Bonus up to £10 Games Bonus & 50 Free Spins (on Starburst). 10 Free Spins will be credited per day, across 5 days. Promo code: GET50. Any Games Bonus winnings, if applicable, must be wagered 60x before withdrawal. FS are valid for 7 days and any winnings must be wagered 99x 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 & full T&Cs apply. Valid until 31.12.2022.
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Amber Spins
Welcome Bonus 200% Up To £20 & 50 Free Spins Activate using code: SLOTS50
Casino Highlights
  • Attractive site
  • Regular promotions
  • All the top providers
First-time depositors only (18+ country restrictions apply). Min deposit: £10. Max offer: 200% Bonus up to £20 Games Bonus & 50 Free Spins (on Starburst). 10 Free Spins will be credited per day, across 5 days. Promo code: SLOTS50. Any Games Bonus winnings, if applicable, must be wagered 60x before withdrawal. FS are valid for 7 days and any winnings must be wagered 99x 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 & full T&Cs apply. Valid until 31.12.2022.

Types Of Online Slot Machines And Games

Online casino games and slots specifically come in all sorts of different varieties. Whether you are after a straightforward and more simplistic time or a narrative-driven modern title, you have so much choice as a UK player.

Below are the main types of slot games that you will come across online:

Three Reel Slot Classics

These titles are slots stripped down to their most basic form and have a 3×3 reel layout. Generally, three-reel slots forego complicated gameplay and features, focusing instead on the simplicity of trying to match symbols across the paylines.

This makes it open to players of all experience levels, keeping the charm of the land-based machines from which inspiration was drawn. Similarly, themes and graphics are kept simple, so fruit slots are very often created in this style. Mega Joker by NetEnt is a terrific example of this.

Multi-Payline And Multi-Reel Slot Games

The polar opposite of slots with three reels is those with multiple paylines and reels. These are different in basically every way but the simple distinction to make is that you have plenty more paylines to bet on.

Perhaps the most drastic example of this is with the Megaways mechanic developed by Big Time Gaming – in titles that include Megaways, up to 117,649 paylines are possible which can result in some massive returns.

Finally, slots with multiple reels and paylines are generally very varied with plenty of bonus games to enjoy.

Video Slots

The term ‘video slots’ covers basically every type of online slot that you can play online. These offer an exhilarating time from any device and, with thousands available, they make up the bulk of a casino’s games library.

There are also hundreds of different themes to choose from, with Egyptian and animal titles especially popular. The features on offer are what make video slots, with free spin rounds and multipliers offering big win potential; furthermore, no previous experience is necessary and stake limits start very low.

Progressive Jackpot Slots

Progressive jackpots are a unique brand of jackpot slots that can result in some truly huge payouts. These are readily available and these have top prizes that keep growing until they are won, which in some cases is millions of pounds.

Iconic games such as Mega Moolah are classics of the genre and are still incredibly popular to this day with many casinos linked in so-called networked jackpots – these often result in some massive wins being up for grabs with the pot being funded through multiple websites. All major providers have some progressive jackpot slots, with fresh releases becoming increasingly common.

The Best Payout Slots

We have handpicked five of the best slots around to play if you are looking for high payout rates – each has above-average RTP as well as gameplay with fantastic depth.

What To Expect At A Top Slots Casino Site

As mentioned, every UK casino that you come across will have a range of online slots, and some will be available to play with free spins. However, there are certain things you can look out for to separate the best from the rest.

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A Large Range Of Demo Slots, Perfect For Practice

Demo slots are widely available. These are full versions of the slot that will let you play with virtual funds. Of course, you will not be able to convert any of this into real cash, but it will still give you a good idea of how certain features work and see how often wins are likely to be.

So, keep an eye out for casinos that offer demo play so that you can get up to speed without any financial risk.

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Fantastic Online Slots Game Software With Maximum Security

With this, every UK-licensed casino should have you covered as they must all conform to the highest standards, but it is still worth repeating: make sure that the site that you are using is partnered only with casino software brands that have the correct security and encryption levels.

In short, only play at brands that can be trusted and are licensed by trusted bodies; this will ensure that your play-time is both safe and fair.

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Top-Quality Customer Service

If anything goes wrong or you simply want clarification on what is happening with your bonus or payment, then it is always a relief to know that you are covered by first-class customer support options. Therefore, before choosing a casino to play at, read our full review at Slotsia so that you know what to expect; if a site has limited or no live chat option then you may want to give it a swerve.

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Great Welcome Bonuses To Use On High Payout Slots

Casino welcome bonuses are everywhere nowadays but if you are willing to be patient then you can ensure that you are getting a good one. Top slot casinos will all have a free spins element so that you can try out a top title and potentially win some money. Always keep an eye on the wagering requirements to ensure that this is a realistic prospect.

Online Slots Tips And Tricks

Online slots are perhaps the simplest game mode Online slots are perhaps the simplest game mode at casinos and no prior knowledge or skill level is necessarily required – this is also one of their main attractions. But, if you want to know how to win at slots then we have five tips for you to take on board.

1Play demo mode

Demos allow you to determine whether a slot is fun to you, the most important aspect of all. You’ll also be able to accurately tell how a slot’s volatility affects your winning chances over a certain number of rounds and a few more questions might be answered. Even though it may not be possible to develop a real strategy, as slots depend on luck and not on player skill, you can still test what’s possible at a slot with the budget you have and discover strengths and weaknesses.

2Analyse features

Bonus features are the way that you are going to land big wins on slots, so it is always a good idea to see what specific elements a title includes before you play. Free spins are, of course, very common but you may also wish to see if scatter symbols and wilds are there to increase the likelihood of a win. Similarly, if you want a straightforward time on the reels then you may want to find a game that has only basic features.

3Note RTP and volatility

You will probably already be aware of these terms, but both RTP and volatility are crucial to understanding the type of experience that a slot provides. The latter especially will have a material impact on how frequently the game pays out – low volatility will shed smaller wins and often, with higher volatility games doing the opposite.

4Utilise bonuses

As this page shows, it is very straightforward to get hold of a casino bonus that lets you play on slots. Arguably the best way to do so is through grabbing an offer that both increases your deposit by a certain amount and also provides free spins. You will then have the chance to play some hugely popular titles, though terms and conditions will need to be fulfilled if you want to make a cash withdrawal.

5Be realistic

Though our tips can help you to get the most out of your online slot session, it is imperative that you are realistic about your chances of winning big. Progressive jackpots, for example, can offer some tantalizingly big wins but the reality is that very few players get close to claiming one. When playing slots it is important to gamble responsibly by sticking to your budget and not chasing losses – especially as this game mode is entirely down to luck.

Real Money Vs. Free Online Slot Games

There are clearly a great number of similarities between playing slots in demo mode (also known as playing for free) or at real money casinos. Depending on your requirements and experience level, it may make sense to choose one rather than the other, so why not read our summary below to see which is the best fit for the next time you head to a casino?

slotsia Real money slots
  • You can win and withdraw real money
  • Can be played with bonus funds
  • Incredibly varied themes
  • Can suit all budgets
  • Real losses are possible
slotsia Free online slots
  • No financial risk
  • Try out all the gameplay features
  • Lets you see the payout frequency
  • You can’t keep winnings

Frequently Asked Questions

We are sure that you will have plenty more questions around online slots – why not see if our answers below will help you gain a better understanding?

Yes, you will almost certainly need to make an account at a casino in order to play a slot game – even in demo mode. This is so that the casino can ensure that you are of legal age. It should not take long, though.

Online slots revolve around the reels and pressing the spin button. The ultimate aim is to match certain symbols on a spin, which will multiply your stake by a predetermined amount. Most modern games also have extra features and bonus elements and no previous skill or experience is needed to play.

Yes, you absolutely can, and that is the major attraction of slots. You will need to play for real money, though, which means that a deposit has to be made. If you prefer to check out a game without any of the financial risk, then we recommend that you give demo mode a go; this will allow you to see if you like the look of a specific slot.

As a new player at a casino, you are likely to be offered a welcome bonus. This will ordinarily see your first deposit boosted by 100% or even more, and it may also include free spins so that you can check out a slot as well. If you fulfil wagering requirements and other conditions then you can then withdraw winnings as real cash.