Best online slots UK - top slots casinos for 2025
Find and play the best online slots in the UK right here on this page. Uncover our list of top-rated online slots casinos and learn valuable tips on how to win online slot games for real cash.
Top UK online slots casinos for real money
- 1Pub CasinoRead reviewWelcome Package
100% match up to £100
Games: 1,500+
Win Rate: 98.76%
Payout Speed: 24 hours
Pros and cons
Top quality customer service
Extensive live casino section
Limited table games
Bonus offer
Wagering requirements 40x Valid for 30 days Max cash out No max cash out Payment Options
18+ | New UK players only | Maximum bonus is 100% up to £100 | Minimum deposit is £10 | No max cash out | Wagering is 40x for bonus | Maximum bet with an active bonus is £5 | Eligibility is restricted for suspected abuse | Skrill & Neteller deposits excluded for welcome bonus | Cashback when offered, applies to deposits where no bonus is included | Cashback is cash with no restrictions | Gambling is addictive, please play responsibly | T&C Apply, 18+
- 2All British CasinoRead reviewWelcome Package
100% up to £100 + 10% cashback
Games: 1,200+
Win Rate: 96.85%
Payout Speed: 24 hours
Pros and cons
Fast 24-hour withdrawals
Welcome bonus worth up to £100
Not many withdrawal options
Bonus offer
Wagering requirements 35x Valid for 30 days Max cash out Unlimited Payment Options
18+ | New UK players only | Maximum bonus is 100% up to £100 | Minimum deposit is £20 | No max cash out | Wagering is 35x for bonus | Maximum bet with an active bonus is £5 | Eligibility is restricted for suspected abuse | Skrill & Neteller deposits excluded for welcome bonus | Cashback when offered, applies to deposits where no bonus is included | Cashback is cash with no restrictions | Gambling is addictive, please play responsibly | T&C Apply, 18+
- 3JackpotCity CasinoRead reviewWelcome Package
100% up to £100 + 100 free spins
Games: 450+
Win Rate: 97.43%
Payout Speed: 1 working day
Pros and cons
Established and secure casino
24-hour payouts
Limited selection of payment methods
Bonus offer
Wagering requirements 50x Valid for 7 Days Eligible games Jackpot City Gold Blitz Payment Options
18+ | New UK players only | Maximum bonus is 100% up to £100 | Minimum deposit is £20+ | 50x wagering applies (as do weighting requirements) | Offer valid 7 days from registration | Free Spins: Awarded on Gold Blitz once staked £20 on any Games Global game | Spin value is £0.10 each. No wagering requirements on free spin winnings | Gambling is addictive, please play responsibly | T&C Apply, 18+
- 4Duelz CasinoRead reviewWelcome Package
£100 + 100 free spins
Games: 2,000+
Win Rate: 97.00%
Payout Speed: 0-2 working days
Pros and cons
Fun and large games library
Great live casino platform
Fees applied to some deposits
Bonus offer
Wagering requirements 45x Valid for 30 days Max cash out £500 Eligible games Book of Dead Payment Options
18+ | New UK players only | Maximum bonus is 100% on first deposit up to £100 + 100 Free Spins on Book of Dead | Minimum deposit is £20 | Max cashout from welcome bonus money winnings is £500 | Max cashout from free spins winnings is £100 | Wagering is 30x for bonus money and 45x for free spins | Maximum bet with an active bonus is £2 | 100 Free Spins are given out 20 per day on Book of Dead for 5 days in a row, log in each day is required | 30-Day Bonus money expiry | 3-Day free spins expiry | Some games may not be played with a bonus. Games may contribute differently when wagering a bonus | Gambling is addictive, please play responsibly | T&C Apply, 18+
- 5Fun CasinoRead reviewWelcome Package
100% up to £123
Games: 1,500+
Win Rate: 97.02%
Payout Speed: 1-3 working days
Pros and cons
1,500+ games from top software providers
Generous welcome offer
Mobile platform has no app and only features slots
Bonus offer
Wagering requirements 50x Valid for 30 days Payment Options
18+ | New UK players only | Maximum bonus is 100% up to £123 | Minimum deposit is £10 | No max cash out | Wagering is 50x for bonus | Maximum bet with an active bonus is £5 | Eligibility is restricted for suspected abuse | Skrill & Neteller deposits excluded for welcome bonus | Gambling is addictive, please play responsibly | T&C Apply, 18+
- 6WinomaniaRead reviewWelcome Package
100% match up to £100 + 100 bonus spins
Games: 900+
Win Rate: 97.06%
Payout Speed: 2 working days
Pros and cons
Welcome bonus of up to £100 + 100 bonus spins
Solid live casino options
No native mobile app
Bonus offer
Wagering requirements 40x Valid for 30 days Max cash out 3x Bonus Eligible games Big Bass Splash Payment Options
18+ | New UK players only | Maximum bonus is 100% on first deposit up to £100 + 100 Free Spins on Big Bass Splash | Minimum deposit is £10 | Max cashout is 3x the bonus | Max cashout from bonus winnings is £100 | Wagering is 40x for bonus money and bonus spins | Maximum bet with an active bonus is £2 | 30-Day Bonus money expiry | 24-Hour bonus spins expiry | Bonus is valid for selected games only | Gambling is addictive, please play responsibly | T&C Apply, 18+
- 7Betway CasinoRead reviewWelcome Package
Stake £10 get 125 free spins
Games: 450+
Win Rate: 98.28%
Payout Speed: 1-2 working days
Pros and cons
Reputable casino with 15+ years of experience
Regular bonuses and promotions
Live chat not easily accessible
Bonus offer
Wagering requirements 50x Valid for 7 days Eligible games Big Bass Bonanza Payment Options
18+ | New UK players only | Make a successful £10 deposit and £10 stake on Casino, Vegas or Live Casino, and get 125 free spins on Hold and Spinner | Free spins come with a value of £0.10 per spin | No wagering requirements on free spin winnings | Debit Card deposit only (exclusions apply) | This offer is valid 7 days from the new account being registered | Gambling is addictive, please play responsibly | T&C Apply, 18+
- 8CoralWelcome Package
Bet £10 & get £50 + 1,000 Coral Coins
Games: 2,000+
Win Rate: 95.80%
Payout Speed: Instant
Bonus offer
We're working on getting bonus deals with this casino, stay tuned!
Payment Options
18+ | New Casino Players Only | Deposit Required (excluding certain types) | Minimum £10 bet on qualifying games | £50 Bonus on selected games | 40x wagering requirement | Bonus must be accepted within 14 days, valid for 30 days | Additional 1000 Coral Coins awarded | Player restrictions and T&Cs apply. T&C Apply, 18+
- 9Hippodrome CasinoWelcome Package
100% up to £100 + 100 bonus spins
Games: 450+
Win Rate: 96.33%
Payout Speed: 2-5 days
Bonus offer
We're working on getting bonus deals with this casino, stay tuned!
Payment Options
- 10Grosvenor CasinoRead reviewWelcome Package
Play with £50 when you deposit £20 + 100 Free Spins
Games: 600+
Win Rate: 97.80%
Payout Speed: Instant
Pros and cons
Trustworthy brand licensed by UKGC
15-minute withdrawals
Limited table game selection
Bonus offer
Wagering requirements 30x Valid for 30 days Max cash out £2,000 Payment Options
New Customers by invite Only || Min Deposit £20 (exc PayPal & PaySafe) || Max Bonus £30 (30x wagering & max wins £2000) & 100 Free Spins @10p playable on selected games (1x wagering on wins, max wins £500) T&C Apply, 18+
- 11Lottoland CasinoWelcome Package
Deposit £20 & Get 100 Free Spins On Big Bass Bonanza
Games: 4500
Win Rate: 97%
Payout Speed: 0-5 days
Bonus offer
We're working on getting bonus deals with this casino, stay tuned!
Payment Options
18+ | £20 min deposit | New players only | Valid until 14/02/26 | 30-day expiry | No wagering requirements | Real money stakes only | Free spins on Big Bass Bonanza | One claim per player | Opt-in required | Full T&Cs apply | T&C Apply, 18+
- 12Luna CasinoWelcome Package
100% up to £50 + 50 free spins
Games: 2,700+
Win Rate: 98.31%
Payout Speed: 1-2 working days
Bonus offer
Wagering requirements 30x Valid for 30 days Max cash out N/A Eligible games Book of Dead Payment Options
18+ | New UK players only | Maximum bonus is 100% on first deposit up to £50 + 50 Free Spins on Book of Dead | Minimum deposit is £20 | Wagering is 30x for bonus money and 60x for free spins | Max bet is 10% (min £0.10) of the free spin winnings and bonus amount or £5 (lowest amount applies) | 30-Day bonus expiry | Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos | Spins must be used and/or Bonus must be claimed before using deposited funds | Bonuses do not prevent withdrawing deposit balance | Gambling is addictive, please play responsibly | T&C Apply, 18+
- 13Monopoly CasinoWelcome Package
Spend £10, get 100 Free Spins on Monopoly Paradise Mansion
Games: 450+
Win Rate: 97.27%
Payout Speed: 1-2 days
Bonus offer
Valid for 30 days Eligible games Monopoly Paradise Mansion Payment Options
- 14Yeti CasinoRead reviewWelcome Package
100% up to £111 + 100 free spins
Games: 2,500+
Win Rate: 96.00%
Payout Speed: 0-1 working day
Pros and cons
2,500+ games
24-hour withdrawals
Limited payment options for withdrawals
Bonus offer
Wagering requirements 60x Valid for 30 days Eligible games Book of Dead Payment Options
18+ | New UK players only | Maximum bonus is 100% on first deposit up to £111 + 100 Free Spins on Book of Dead | Minimum deposit is £10 | No restrictions while playing with cash | Wagering is 60x for bonus money and free spins | Maximum bet with an active bonus is £5 | Eligibility is restricted for suspected abuse | Skrill & Neteller deposits excluded for welcome bonus | 30-Day bonus expiry | Gambling is addictive, please play responsibly | T&C Apply, 18+
- 15Casino77Read reviewWelcome Package
100% up to £77 + 77 free spins on Big Bass Bonanza
Games: 5,000+
Win Rate: 97.15%
Payout Speed: 1 working day
Pros and cons
Huge library of 5,000+ games
Generous welcome offer including deposit match and free spins
Withdrawal fee of 1% up to £3 applies
Bonus offer
Wagering requirements 40x Valid for 30 days Payment Options
18+ | New players only | Opt-in Required | Wager from real balance first | 40X wager the bonus and the winnings from free spins | 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 for the bonus | Max conversion for free spins: £100 | Limited to 5 brands within the network | Excluded Skrill and Neteller deposits | Withdrawal requests voids all active pending bonuses | Full Terms Apply T&C Apply, 18+
Online slot sites – our top 5 picks
Knowing which online casino offers the best experience can make all the difference when you play slots online. After vetting dozens of gambling sites in the UK for game selection, graphics, bonuses and more, our experts have ranked the following operators as the best online slots casinos:
| 🎰 Best for classic slots | |
| 👾 Best for video slots | |
| 💰 Best for progressive jackpots | |
| 🤑 Best for high RTP slots | |
| 🤩 Best for Megaways slots |
Please note that you must be aged 18 or older to play our games.
Highest paying slot games for UK players
Not all online slots are created equal, with some offering better chances of a payout than others. While there’s no way of guaranteeing a win, choosing slot games with higher return to player percentages (RTP) will theoretically give you a better chance at winning real money.
RTP is displayed as a percentage and indicates how much of your money you can expect to get back when playing a casino game over time. The industry average is 96%, but the best online slot payout percentages are 98% and higher. Give these high-paying slots a try to increase your chances of winning when you spin the reels:
Best online slots for real money
While RTP has a significant impact on gameplay, UK players also love slots with high maximum win potential and exciting bonus features. Check out the top 10 best online slots for real money gaming below:
| Slot game | Provider | Release | RTP | Reels | Paylines | Volatility | Max. win | Betting limits |
|---|---|---|---|---|---|---|---|---|
Book of Dead | Play’n GO | 2016 | 96.21% | 5 | 10 | High | 5,000x | £0.01 - £50 |
Big Bass Bonanza | Pragmatic Play | 2020 | 96.71% | 5 | 10 | High | 2,100x | £0.10 - £250 |
| NetEnt | 2012 | 96.09% | 5 | 10 | Low | 500x | £0.01 - £100 | |
Cleopatra | IGT | 2012 | 95.02% | 5 | 20 | Medium | 10,000x | £0.20 - £200 |
| Pragmatic Play | 2022 | 96.71% | 5 | 10 | High | 5,000x | £0.10 - £250 | |
Rainbow Riches | Barcrest | 2009 | 95% | 5 | 20 | Low | 500x | £0.20 - £500 |
Dead or Alive | NetEnt | 2009 | 98.08% | 5 | 9 | High | 13,888x | £0.09 - £18 |
| Microgaming | 2011 | 96.86% | 5 | 243 | Medium | 12,000x | £0.30 - £30 | |
Gonzo’s Quest | NetEnt | 2011 | 95.97% | 5 | 20 | Medium | 2,500x | £0.20 - £50 |
Break Da Bank Again | Microgaming | 2008 | 95.43% | 5 | 9 | Medium | 37,575x | £0.01 - £22.50 |
1. Book of Dead
Rich Wilde is the main character in this Indiana Jones-style slot. Book of Dead is a fan favourite, boasting a decent 96.21% RTP, and in-game bonuses including wilds, scatters and a special expanding symbol that will trigger a payout worth 5,000x your stake when it covers the entirety of the reels!
2. Big Bass Bonanza
Big Bass Bonanza is so successful that it’s spawned numerous sequels, including our all-time favourite Bigger Bass Bonanza. The original has a fun fishing theme, immersive soundtrack and various bonus features, including scatters, free spins and re-triggers to enhance gameplay.
3. Starburst
Set against a cosmic backdrop, Starburst is an iconic slot from leading slot provider NetEnt. The 5-reel, 10-payline slot has a 96.09% RTP and is optimised for play on all devices, including iPhone and Android. While it’s classic in style, it remains a top pick for gamblers thanks to its simple gameplay and low volatility, meaning you’re likely to enjoy small but frequent wins.
4. Cleopatra
Cleopatra is a popular ancient Egyptian-themed slot featuring classic cultural symbols such as the Sphinx, river Nile and hieroglyphics. While it has a mid-range RTP of 95.02%, the max win of 10,000x your bet makes it hard to pass up on. You can boost your payout by triggering the various unique features, which include wilds, scatters and free spins.
5. Big Bass Splash
Big Bass Splash is one of the most popular titles in the ‘Big Bass’ series from Pragmatic Play. On this fishing adventure, you’ll need to hook the various symbols to land a payout. The wild and the scatter are the most valuable, with five scatters triggering a free spins round that could see you win 5,000x your bet.
6. Rainbow Riches
Rainbow Riches appeals to high rollers and casual players alike due to its wide betting limit. You can spin the reels for as little as £0.20 all the way up to £500 per spin. The game offers three different bonus games – Road to Riches, Wishing Well and Pots of Gold – all of which offer a top prize of 500x your stake. There’s also an autoplay feature for those of you who want to watch the reels play out without lifting a finger.
7. Dead or Alive
Released in 2009, Dead or Alive is an innovative NetEnt slot with a gunslinger theme. Prolific outlaws such as Jesse James and Billy the Kid are the slot’s special symbols and will appear on ‘Wanted’ posters. These wilds become sticky during the free spins bonus game to offer wins of over 13,000x your stake!
8. Immortal Romance
Immortal Romance is a fun vampire-themed game with top-notch graphics and a higher-than-average 96.86% RTP. There are 243 ways to win in this Microgaming slot, which also features a Wild Desire bonus that could pay out 12,000x your bet.
9. Gonzo’s Quest
Join Gonzo in his quest to uncover the lost city of Eldorado in this popular NetEnt slot. The 5x3 reels feature Peruvian-inspired symbols, high-quality graphics, an immersive soundtrack and plenty of bonus features. The Free Fall bonus is where the real fun begins, with an Avalanche feature that applies multipliers of up to 15x, leading to potential wins of 37,500x.
10. Break Da Bank Again
Break Da Bank Again is a popular Microgaming slot with a mid-range RTP of 95.43%. The money heist-themed slot has low betting limits of £0.01 to £22.50 per spin, making it an ideal choice for budget bettors. There’s also a rewarding free spins bonus game that can award 15, 20 or 25 free spins based on whether three, four or five scatters are in view.
Types of online slots
There are several types of online slot machines, each offering a different experience when you spin the reels. Here are the most popular online slot types in the UK:
Classic online slots usually comprise three reels and are reminiscent of land-based casino slot machines, so expect to see symbols such as fruits, sevens, bars and bells on the reels. Most players enjoy these online slots for the nostalgic feel and simplistic gameplay.
You’ll find thousands of video slots online covering various themes and storylines. While they typically play out on a 5x3 grid and have 10 to 20 paylines, it’s not uncommon to find video slots with hundreds of paylines, such as Immortal Romance. These slot types also boast tons of exciting bonus features, including wilds, scatters, mini-games and free spins.
If you want a chance to win life-changing sums when playing online slots for real money, progressive jackpot slots are worth a try. These slots take a percentage of your wager and add it to a prize pool, which increases whenever a bet is placed until the jackpot is won. Iconic titles like Mega Moolah have paid out seven and eight-figure cash prizes to lucky players!
Developed by Big Time Gaming, the Megaways reel mechanic helps boost your payout by offering more ways to win – usually between 243 to 117,649 ways for each spin. However, some slots like Gorilla Gold Megaways have over 470,000 paylines!
Penny slots are a popular choice for beginners and budget bettors, as they allow you to spin the reels for as little as £0.01 per payline. These slots usually have low RTPs, but if you find a title with low volatility, you could enjoy small wins regularly.
Slingo is an exciting hybrid of slots and bingo. A standard game takes place on a 5x5 grid reminiscient of a traditional bingo card and features a set of reels beneath. To win, you must match the numbers on the reels with the numbers on the grid.
Play 16,500+ free slots online
Please note that you must be aged 18 or older to play our games.
Online slot game features
We’ve already mentioned some of the key features you’ll come across when playing UK online slots, such as symbols and wilds. In this section, we’ll breakdown what each of those mean:
Symbols are the icons that land in place after you spin the reels. Most slot games feature playing cards (Jack, Queen, King and Ace) as lower-paying symbols, while the high-paying symbols typically mirror the slot’s theme. You’ll also find bonus symbols, such as wilds and scatters in modern slots.
Paylines are the invisible lines on which a payout is awarded based on a winning combination of symbols. Classic online slots typically have 10 paylines, but you can find new online slots with hundreds of thousands of paylines. You’ll usually need to match three or more symbols on an active payline to secure a payout.
Online slots with free spins are some of the most-played slot games, as they offer you the chance to spin the reels risk-free. Moreover, a game’s max win or jackpot can usually be triggered during a free spins bonus. Typically, three or more scatter symbols will activate a free spins round, but this will vary depending on the software provider.
Wilds are a special type of symbol that can substitute for all other symbols (except the scatter) to help you land a winning combination. In some games, these can also transform into expanding or sticky wilds to boost your payout.
Scatter symbols can trigger a variety of bonus features. As the name suggests, they don’t need to land on a fixed payline to activate, but can appear scattered across the reels as long as the required number is showing (usually three).
Bonus online slots are incredibly fun to play as they trigger mini-games such as pick-me, spin-the-wheel, respins and more. These games provide additional gameplay to help you maximise your winnings and land instant cash prizes.
Top UK slot software providers
Best online slot bonuses
The best real money casinos offer bonuses and promotions that you can use on hundreds, if not thousands, of slot games to get extra value from your bankroll. Discover some of the most common casino bonuses for online slots in the UK:
Welcome bonus: Exclusive to new players, a welcome bonus is often the most generous offer. It is usually awarded as a deposit match bonus or free spins and can be activated after registering and making a qualifying deposit.
Free spins: A free spins bonus is tailored specifically to online slots. Each free spin will be assigned a fixed value (usually £0.10), which you can use to play your favourite games.
No deposit bonus: The no deposit bonus allows you to play selected slot games risk-free. In most cases, you’ll only need to register an account to claim a no deposit online slots bonus.
Real money slots vs. free slots
While nothing beats the excitement of playing slots for a chance to win real money, there are advantages to playing free slots first. Check out the pros and cons for free and real money slots below:
| Real money slots | Free slots |
|---|---|
| ✅ Chance to win real cash prizes | ✅ Risk-free gaming |
| ✅ Can play using a casino bonus | ✅ Familiarise yourself with gameplay |
| ✅ Access the casino’s full slots library | ✅ Test new strategies |
| ❌ Must create a casino account for real money play | ❌ Can’t win real money |
| ❌ Chance of losing real money | ❌ Not all slot games are available for free |
How to play slots online
Playing slots online in the UK is easy. Learn how in our simple step-by-step guide:
Select your chosen casino from our list of recommended online slot sites.
Tap the ‘Sign-up’ or ‘Register’ button to create an account. Then, complete the registration form by submitting your name, email, address and date of birth to verify you’re of legal gambling age.
Deposit funds via your preferred method. You can also claim the casino’s welcome bonus at this stage.
Head to the game lobby and choose a slot game that suits your preferences.
Place your bet using the game controls to adjust your stake amount, and hit ‘Spin’ to set the reels in motion!
How to win online slots
There’s no way to guarantee a win when playing online slots, as they all use random number generator (RNG) technology to ensure that outcomes are unpredictable and fair. That said, these expert tips will help maximise your playing experience:
Choose the right slot: When getting started, play slots with high RTPs and bonus features, as this will help boost your chances of winning a payout.
Practice for free: There are plenty of demo slots that you can play for free online. Playing for free will help familiarise yourself with a game’s mechanics before you place real money bets.
Stick to your budget: Responsible gambling means never betting what you can’t afford. Set a budget and stop playing once you reach it.
Claim casino bonuses: Bonuses and promotions will boost your bankroll and extend your gaming session.
Check the paytable: All slots have a unique paytable showing the values of the symbols featured in the game. Study this so you know which ones are the most valuable.
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FAQs
Online slots work by awarding a payout for a winning combination that lands after the reels are spun. You simply have to place your bet and hit ‘Spin’ to set the reels in motion.
Grosvenor Casino, All British Casino, Mr Mega, MagicRed and LeoVegas are our experts’ top-rated online slots casinos.
Yes. If you play online slots for real money, you can win an actual cash payout. This will be instantly rewarded after a winning spin.
Absolutely. Most mobile casinos in the UK provide online slots, which you can play from your smartphone browser or the casino’s dedicated app if it has one.
Payout percentages are another term for RTP and refer to the amount of money you can expect to receive back when playing an online slot over time. For example, a slot with 98% RTP will theoretically pay out £98 for every £100 wagered on average.
Of course, many Brits have won life-changing amounts playing online slots. Jon Heywood won £13.25 million on Mega Moolah 25 minutes after registering a casino account back in 2015. More recently, in 2023, a lucky player in Newcastle won £5.4 million playing King Kong Cashpots from just a £1.40 wager!
On 23 February 2024, the UK government introduced new stake limits for online slot games as part of the white paper on gambling reform. From September 2024, gamblers over 25 will be limited to £5 per spin on online slots, while those aged 18-24 will have a £2 limit. The white paper outlined several other measures, including a statutory levy for research, prevention and treatment of problem gambling and financial risk checks.
Lauren has been working in the iGaming industry for several years. She has considerable experience writing about the gambling industry, covering different markets, including the UK. Lauren enjoys playing blackjack or trying out the latest slot games in her spare time.
