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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Magical Vegas
Welcome Bonus 100% up to £300 + 300 Free Spins Activate using code: MAGICAL
Casino Highlights
  • Great selection of games from the industry’s best providers
  • Generous welcome bonus
  • Rewarding loyalty program
1st dep. of £20-£300, max bonus £300 on selected slots, 50x wagering on the sum of deposit bonus applies. Max convertible 5x bonus amount received. Free Spins: Use code: MAGICAL when depositing in the cashier. 5 Batches of 10 FS Daily. Winnings capped at £10 per batch. T&C’s Apply. 18+, Full T&C apply.
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Grosvenor Casinos
Welcome Bonus Bet £20 get £50
Casino Highlights
  • Bet £20 get £50
  • Fantastic game selection
  • Jackpot titles

NEW CUSTOMERS ONLY. MIN DEPOSIT £20. MAX BONUS £30, BONUS AMOUNT NON-WITHDRAWABLE, PLAYABLE ON SELECTED GAMES ONLY. 5X WAGERING FOR £30 BONUS. EXPIRES WITHIN 30 DAYS.*T&C’s Apply

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Kaiser Slots Casino
Welcome Bonus 100% Up To £50 & 100 Spins
Casino Highlights
  • Deposit £10 and get £50 in bonus
  • 100 spins on Starburst
New Players Only 18+. Minimum Deposit: £10. Maximum Offer: 100% Bonus up to £50 & 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: 100SPINS. Withdrawal & full T&Cs apply. Valid until 31/12/2022. www.begambleaware.org.
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Mr Green
Casino Highlights
  • High-quality games
  • Loyalty scheme
  • 50 Bonus spins!
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Yeti Casino
Welcome Bonus 100% up to £111 +100 Extra Spins
Casino Highlights
  • Up to 100 Extra Spins
  • 23 extra spins on registration

#AD New customers only, 18+, min deposit £10, wagering 60x for refund bonus, max bet £5 with bonus funds. Free Spins bonus has x40 wagering. 23 free spins on registration (max withdrawal is £100). 100% refund bonus up to £111 + 77 spins on 1st deposit. No max cash out on deposit offers. Eligibility is restricted for suspected abuse. Welcome bonus excluded for players depositing with Skrill or Neteller. Full T&Cs apply. BeGambleAware.org.

 
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Slots n’Play Online Casino
Welcome Bonus Up to £100 and 150 extra spins
Casino Highlights
  • Great welcome offer
  • Huge game selection
  • Mobile first
18+. New players only. Terms and conditions apply. Valid over 4 deposits. Minimum deposit £20. 35x wagering. Begambleaware.org
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MrQ Casino
Welcome Bonus 70 No Wager Free Spins Activate using code: FISHKING70
Casino Highlights
  • 70 Free Spins with Bonus Code
  • No wagering requirement on bonuses ever!
  • Great for bingo fans as well as slot gamers
18+. Code needed: FISHKING70. First deposit only. Min deposit & spend £20. Max 70 spins on Fishin Frenzy Jackpot King at 10p per spin. Spins credited upon spend of £20. Full T&Cs apply. BeGambleAware.org.
9
STS Casino
Welcome Bonus Deposit £20 for 50 free spins Activate using code: CWFS50
Casino Highlights
  • Solid welcome offer
  • Great game selection
18+. New depositing on STSbet.co.uk customers only. Promotion from 02/08/2022 until further notice. Once the deposit is made the Free Spins are activated. Deposit method restrictions apply. Bonus code required during the first deposit CWFS50, min £20 deposit. The offer consists of 50 Free Spins in selected Slots. Bet value per spin is set to the min bet level. Free Spins winnings wagering requirements x35 within 7 days on selected slots only. Individual bonus funds bets £2 max. Full T&Cs apply. Full T&Cs apply. BeGambleAware.org
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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.

11
Win British
Welcome Bonus Win up to 500 Free Spins on Starburst Spin the Mega Wheel
Casino Highlights
  • The chance to win up to 500 free spins
  • Leading game suppliers
  • Wide range of gaming options
18+. New Players Only, Min Deposit £10, £8 Max Win Per 10 Spins, Max Bonus Equal To Lifetime Deposits (Up To £250), 65x Wagering Requirements And Full T&Cs Apply. BeGambleAware.org.
12
Casiplay
Welcome Bonus Get up to £200 as a bonus + 100 Extra Spins
Casino Highlights
  • 100 extra spins on 4 deposits
  • Bonuses up to £200
  • Great games selection
18+. New players only. Offer valid upon 4 deposits. Min deposit £20. Welcome package split over 4 deposits, 35x wagering applies. Full T&Cs Apply. BeGambleAware.org
13
Playluck Casino
Welcome Bonus Bonus up to £200 + 100 Extra Spins
Casino Highlights
  • 1st deposit 100% matched to £50
  • Bonuses over your first 4 days
  • Launched in 2020 ?
Full terms and conditions apply. Offer valid upon 4 deposits. New players only, 18+. Minimum deposit £20. Welcome package split over 4 deposits, 35x wagering applies. BeGambleAware.org.
14
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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NetBet Casino
Welcome Bonus Up to 500 Free Spins on Your First Deposit Activate using code: NBWELCOME500
Casino Highlights
  • Quality slots
  • Great welcome offer
  • Bonus code: NBWELCOME500
This offer is available to new NetBet Casino players only. £10+ deposit required, no e-wallets/prepaid cards, 50x wagering on Vegas Free Spins, 40x wagering on Casino Free Spins. Bonus code required: NBWELCOME500. T&Cs apply. BeGambleAware.org
16
100% up to £50 21.co.uk
Welcome Bonus + £6 free in live casino chips
Casino Highlights
  • Varied welcome bonus
  • Excellent games library
  • Great mobile app
18+ BeGambleAware.org, Full T&Cs apply. New players only. 7 days to claim offer with a further 7 days to wager on Live casino. Wagering contributions vary. £6 bonus has 3 day expiry to use on selected Evolution games. Minimum deposit £10.
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PokerStars
Welcome Bonus Deposit £10 And Get 100 Free Spins Activate using code: CASINO100
Casino Highlights
  • 100 Free Spins on Your 1st Deposit
  • Promo code: CASINO100
  • Casino and Live Casino Races
New PokerStars Casino registered players only. 18+. Min. £10 deposit with code ‘CASINO100’, debit card only. 7-day Free Spins expiry. Free Spins valid on 7 slots only. All spins must be used before cashout allowed. Any winnings credited as cash. Full T&Cs apply. BeGambleAware.org.
18
Pink Casino
Welcome Bonus Up to £150 and 50 Free Spins on Starburst
Casino Highlights
  • Deposit bonus up to £150
  • 50 Wager-Free Spins Available
  • Great array of slots
18+ . Full T&Cs apply. New player only. 7 days to claim offer and deposit a min of £10 with a further 7 days to wager 35x. Cash stakes only and wagering contributions vary. Max reward £150. 50 wager-free spins 0.10p each on Starburst awarded after wagering complete, winnings paid as cash. 3 day expiry. www.begambleaware.org.
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Casumo
Welcome Bonus 100% up to £25 + 20 Bonus Sahara Riches spins
Casino Highlights
  • 100% up to £25 + 20 Bonus Spins on Sahara Riches
  • Great selection of games
  • Multi-awarded casino
18+. New UK customers only. Opt-in required. 20 Bonus Spins on “Book of Dead” and 100% Deposit Bonus up to £25 on first deposit. Min deposit £10. 30x wagering requirement for Bonus Spins and 30x wagering requirement for Deposit Bonus (game weighting applies). Max £5/spin or £0.50/line or £10/round (live casino). 30 days expiry. T&C’s Apply. Please gamble responsibly • www.begambleaware.org 
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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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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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Betfred Casino
Welcome Bonus Stake £10 + get 100 Free Spins Activate using code: CASINO100
Casino Highlights
  • Stake £10 to unlock 100 free spins
  • Household name
  • Great slots
New customers only. 18+. Promo code CASINO100. £10 min transfer and stake on Slots at Betfred Casino within 7 days of registration. Minimum 5 game rounds. Game restrictions apply. Max 100 Free Spins. 50 Free Spins on Lucky Emeralds or Blue Wizard followed by 50 Free Spins on selected games within 48 hours. £0.10 per spin. Free Spins must be accepted within 3 days. 7-day expiry. Payment restrictions apply. SMS validation may be required. Full T&Cs apply BeGambleAware.
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Temple Nile
Welcome Bonus 100% up to £300 + 60 bonus spins
Casino Highlights
  • Great theme
  • Generous welcome bonus
  • Huge games offering
18+. New players only. Min. deposit £20. Max. bonus bet is £5. Bonus spins on selected games only and must be used within 72 hours. Winnings from Bonus spins credited as bonus funds and capped at £20. Bonus funds expire in 30 days, unused bonus funds will be removed. Welcome Offer is 100% match up to £300 plus 60 Extra Spins on your 1st deposit. Bonus funds are separate to Cash funds, and are subject to 40x wagering the total bonus & cash. Only bonus funds count towards wagering contribution. Affordability checks apply. Terms apply. Please gamble responsibly. 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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All British Casino
Welcome Bonus 100% up to £100 + 10% Cashback Always
Casino Highlights
  • 100% bonus up to £100
  • Always 10% cashback no wagering

#AD New customers only, min deposit £20, wagering 35x, max bet £5 with bonus funds. Max bonus is 100% up to £100. No max cash out on deposit offers. Welcome bonus excluded for players depositing with Skrill or Neteller. Cashback is cash with no restriction. Full T&C’s apply.

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.

slotsia

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.

slotsia

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.