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Find your ideal online casino to play and enjoy slots right here. We tested more than 100 fully licensed sites to bring you our top recommendations, featuring diverse gaming options and the most popular slots, plus the highest payout rates and best value slots bonus offers.
In the table below you’ll find our favourite casino sites for playing slots online. Each of these sites has been tested and reviewed in detail. We have given them our seal of approval because they offer slots gaming variety, mobile compatibility, trusted payment methods, and responsive customer support, giving you safe and enjoyable options to choose from.
Full T&Cs Apply. 18+. New Casino players only. Deposit required. Bet £10+ on qualifying games. 40x wager reqs (bonus only) on selected games. Accept Bonus within 14 days. Bonus valid for 30 days. Certain deposit types excluded. Player restrictions and T&Cs apply.
Full T&Cs apply. 18+. New players in GB only. 100% deposit bonus up to £100. Min. deposit: £20. Max Bonus wins: £500. Max bet with active bonus: £2. Wagering requirement: 30x sum of deposit + bonus. 100 Free Spins applicable to Book of Dead only: 20 Free Spins per day for 5 days. Daily login required. Maximum Free Spins winnings: £100. Winnings credited as bonus money with a 45x wagering requirement. Game restrictions apply. Games contribute differently when wagering a bonus. First deposit only, no expiration date. Deposit bonus expiration: 30 days if not wagered. Free spins expiration: 3 days. One bonus per person/address/device/IP. Own payment methods only. www.gambleaware.org
Full T&Cs Apply. 18+. New Casino players only. Deposit req (certain types excluded). Bet £10+ on qualifying games to get a £50 Bonus (selected games, 40x wag req, accept within 14 days, valid for 30 days).
Full T&Cs apply. New customers only aged 18+. Minimum deposit £10. Get a Casino Bonus matched to your first deposit, up to £100, after you stake £20 on slots, credited within 48 hours. Bonus expires in 7 days and has a 40x wagering requirement. Additional T&Cs apply. Please bet responsibly.
#AD Full T&Cs Apply. New members only, must opt-in. Min £10 deposit & wager. 30-day expiry from deposit.18+. Free Spins: on MONOPOLY Paradise Mansion. 1p coin size, max lines. Bingo: Advertised ticket value based on £1 tickets. Game availability & restrictions apply. GambleAware.org
Full T&Cs Apply. 18+. New players only. One bonus offer per player. Minimum deposit £20. Max bonus bet is £5. Bonus spins on selected games only and must be used within 72 hours. Bonus funds must be used within 30 days otherwise any unused bonus shall be removed. Bonus funds are 100% match up to £300 on your 1st deposit. Bonus funds are separate to Cash funds, and are subject to 35x wagering the total bonus & cash. Only bonus funds contribute towards any wagering requirements. Terms apply. GambleAware.org.
Full T&Cs Apply. New customers only. Min deposit £20 (exc paypal). Max bonus £30, bonus amount non-withdrawable, playable on selected games only. 30x wagering for £30 bonus. Expires within 30 days. Max win £2,000.
We take a detailed approach to testing and evaluating online slot casinos, focusing on what matters most to players. Each site is tested for slots gaming variety, fairness, bonus value, payout speed, and mobile performance. We make sure you have all the most important information to hand.
Ladbrokes has more than 3,900 online slots to choose from
King Kong Cash slot at Ladbrokes with Jackpot King cash pot and features
Ladbrokes offer many deposit payment methods including Apple Pay, Visa, PayPal, and PaysafeCard
Our Ranking Criteria
Bonus offers and promotions with genuine value for slots players
Convenient deposits and fast withdrawals via trusted payment methods
Slots from leading developers including Pragmatic Play, NetEnt, Play’n GO, Games Global, and more
Gameplay options featuring different styles, themes, and mechanics, plus regular addition of new slot releases
Slots that are verifiably fair, with RTP rates certified by independent testing agencies
Availability of responsible gaming tools including session timers and spending limits
Games are fully optimised for desktop and mobile devices
We have refined our usual testing approach to better reflect the needs of slots players, placing more weight on gaming quality and variety, safety and fairness, plus the value of bonus offers. To see how this compares with our broader approach, check our guide covering how we choose the best casino sites.
Our Favourite Online Slot Games to Play in the UK
As you would expect, we test hundreds of slots online each year, whether it’s playing the latest new releases or updated classics. This gives our team of slots experts unique insights, allowing us to share our genuine thoughts and opinions based on gameplay, features, RTP rates and volatility.
Together, we have chosen some of our favourite online slots, which you’ll find below, highlighting what we most enjoyed about playing them. This is actually a useful way for us to share our own experiences directly with you, especially if you’re looking for specific types of slots to play.
Note: Under UK Gambling Commission regulations, the maximum bet amounts for online slots are £2 for players aged 18-24, and £5 for players aged 25 and over.
Book of Dead
Book of Dead – Egyptian Treasure Adventure
Book of Dead by Play’n GO takes you deep into ancient Egypt alongside the daring explorer Rich Wilde. With its iconic Free Spins feature and expanding symbols, this slot delivers classic, high-volatility excitement. I love how every spin feels like uncovering a hidden relic of fortune, making this a timeless favourite for adventurous players.
Book of Dead features a classic 5 reels and 3 rows display for simple gameplay.
Hitting a big win after triggering the free spins round is always fun!
The paytable for Book of Dead clearly explains all the features and symbol values.
Game Overview
RTP:
96.21%
Volatility:
High
Hit Frequency:
23.77%
Min Bet:
£0.10
Max Bet:
£2 to £5
Big Bass Bonanza
Big Bass Bonanza – Reel in the Wins
Big Bass Bonanza by Pragmatic Play delivers cheerful fishing action with its lively Free Spins feature and Fisherman Wilds help to reel in the prize catches. The upbeat theme and simple yet rewarding gameplay make it easy to enjoy. I like how every bonus round feels like a lucky fishing trip, and how one great catch can change everything.
Simple fishing fun with 5 reels and 3 rows, backed by cool animations and the catchy soundtrack.
Hit 3 or more Scatter symbols to trigger the free spins round, where you can catch some of the biggest wins.
The paytable for Big Bass Bonanza shows all the winning symbol combinations, including Scatters and Wilds.
Game Overview
RTP:
96.71%
Volatility:
Medium to High
Hit Frequency:
12.66%
Min Bet:
£0.10
Max Bet:
£2 to £5
Starburst
Starburst – Timeless Space Spinner
Starburst by NetEnt is a dazzling space-themed slot known for its vibrant expanding wilds and both-ways win mechanic. The sleek visuals and hypnotic soundtrack bring cosmic replayability. Still hugely popular with slots fans, it remains one of my favourites thanks to the feel-good vibes, more than 10 years after its original release.
The star theme has become iconic with the NetEnt hit.
Wilds can expand and trigger exciting wins in the Starburst slot by NetEnt.
Helpful detail in the Starburst paytable, explaining how the Wild symbol works.
Game Overview
RTP:
96.09%
Volatility:
Low
Hit Frequency:
22.60%
Min Bet:
£0.10
Max Bet:
£2 to £5
Bonanza Megapays
Bonanza Megapays – Explosive Prize Mining
Bonanza Megapays by Big Time Gaming combines the legendary Megaways slots mechanic with exciting Megapays progressive jackpots. Set in a mine rich with gold and gems, lucky spins can trigger cascading wins and huge payouts. I really enjoy the mix of high-energy gameplay and big-win potential, and mining for prizes has never felt this rewarding.
Bonanza Megapays adds progressive jackpots to this iconic slot, which also features the Megaways gameplay mechanic.
The mining cart brings extra symbols to the Megaways mix, triggering explosive reactions to enhance winning chances.
The paytable in Bonanza Megapays clearly explains how the Megapays jackpot feature is triggered.
Game Overview
RTP:
96.40%
Volatility:
High
Jackpot:
Yes
Min Bet:
£0.20
Max Bet:
£2 to £5
Gonzo’s Quest Megaways
Gonzo’s Quest Megaways – Treasure Awaits the Bold
Gonzo’s Quest Megaways by Red Tiger updates this iconic slot with the powerful Megaways slots gameplay mechanic. The falling Avalanche Reels design and rising multipliers keep every spin feeling dynamic, filled with potential combinations. Aside from the updated gameplay, I love the animated Spanish conquistador, who gets excited whenever treasure is revealed on the reels.
Avalanche Reels make each spin unique and captivating, with symbols exploding to drop more combos.
Fortune and glory awaits Gonzo when you trigger the free spins round, with up to 15x multipliers offering the biggest winning combos in the game.
The paytable explains symbol values, plus gameplay mechanics like Megaways, Avalanche Multipliers, Unbreakable Wilds, Free Fall, and the Earthquake feature.
Game Overview
RTP:
94.66%
Volatility:
High
Megaways:
Yes
Min Bet:
£0.10
Max Bet:
£2 to £5
Gates of Olympus
Gates of Olympus – Spin with the Gods
Gates of Olympus by Pragmatic Play unleashes thunderous excitement with its Tumble feature and powerful multipliers up to 500x your bet. Zeus reigns over every spin, ready to strike with divine wins. My favourite part’s the all-ways-pay system and explosive visuals, making this godly slot bold, dramatic, and highly rewarding.
Gameplay is enhanced by the Tumble Feature in Gates of Olympus, with new symbols falling from above after winning combinations are paid.
Scatter symbols unlock the Free Spins round, opening your way to the biggest prizes that Zeus can offer in Gates of Olympus.
Pragmatic Play designed clear paytable and info pages for Gates of Olympus
Game Overview
RTP:
96.50%
Volatility:
High
Hit Frequency:
28.82%
Min Bet:
£0.20
Max Bet:
£2 to £5
Sweet Bonanza
Sweet Bonanza – Sugary Spins & Big Wins
Sweet Bonanza by Pragmatic Play serves up colourful fun with the Tumble feature and juicy Free Spins round packed with random multipliers. The candy-filled reels and upbeat design make it instantly cheerful. The sweet spot for me is the medium volatility and solid hit frequency, so every spin has the potential to unwrap a sweet surprise.
Thanks to the 50% hit frequency and medium volatility, Sweet Bonanza gameplay is popular among slots fans who are keen to see their funds go further.
Hitting the Free Spins round opens a new screen, with multipliers boosting the chances of getting big wins.
The paytable and info pages in Sweet Bonanza explain slot symbol values, free spins triggers, and how multipliers work.
Game Overview
RTP:
96.48%
Volatility:
Medium
Hit Frequency:
50.00%
Min Bet:
£0.20
Max Bet:
£2 to £5
The Goonies
The Goonies – Spin for Pirate Gold
The Goonies by Blueprint Gaming brings the classic 80s film to life with a treasure reels full of bonus features and wacky surprises. From One-Eyed Willy’s Treasure to character-led modifiers, it’s packed with nostalgic charm. What I most enjoyed was the bonus mini-games, featuring memorable characters and their iconic movie quotes.
Any spin can trigger special features with enhanced gameplay in The Goonies slot.
Everyone’s favourite Goonies character swings across the screen, during his very own Sloth’s Win Spin bonus feature.
Winning symbols and bonus triggers are explained in The Goonies paytable, with mini-game features also clearly detailed.
Game Overview
RTP:
96.00%
Volatility:
High
Hit Frequency:
36.63%
Min Bet:
£0.10
Max Bet:
£2 to £5
Chili Fusion
Chili Fusion – Spicy Reels, Hot Wins
Chili Fusion by Blueprint Gaming cranks up the heat with fiery symbols, sizzling Free Spins, and a vibrant Mexican fiesta theme. Mixing bold colours and lively music keeps the energy high from the very first spin. Hitting the Free Spins bonus wins had me burning up with pleasure, helped by those animated chilis that never stop grinning.
Chili Fusion gameplay is filled with hot flavour and features, plus Grand, Major, Minor, and Mini jackpot prizes.
Spicy win amounts are possible in the Free Spins feature of Chili Fusion.
In the Chili Fusion paytable and information pages, developer Blueprint Gaming covers all the symbol values and features available.
Game Overview
RTP:
94.05%
Volatility:
High
Hit Frequency:
26.58%
Min Bet:
£0.20
Max Bet:
£2 to £5
Yogi Bear
Yogi Bear – Grab the Picnic Prizes
Yogi Bear by Blueprint Gaming brings the classic cartoon favourite to the reels with bright animation and entertaining bonus rounds, with plenty of picnic mischief and cheerful energy. The mix of humour and nostalgia made it a real treat for me to play, especially knowing that Yogi is smarter than the average bear, bringing his capers to the spinning reels.
Fun gameplay makes Yogi Bear appealing to fans of branded slots.
Trigger the Bonus Spins feature, Yogi Bear will help fill your basket with respins and bumper wins.
Smarter than the average bear, Yogi always recommends checking out the paytable, covering symbol values and bonus feature triggers.
Game Overview
RTP:
95.00%
Volatility:
Medium
Wilds:
Yes
Min Bet:
£0.10
Max Bet:
£2 to £5
All Online Slots We Have Tested
If you’re keen to check some of the most popular slots that we have tested and reviewed, along with recommendations for online casinos where they’re available to play, feel free to browse our list below. To aid your search, we added useful filters and sorting options.
Great online slots wouldn’t exist without innovative game developers creating them. Below, you’ll find our list of the top software companies that are partnered with reputable UK casino sites. I’ve also chosen my own favourites, explaining what I like most about the slots they’ve launched.
“Pragmatic Play raise the bar for new releases, Play’n GO for immersive themes, and Big Time Gaming for popular gameplay mechanics. These three studios are my top choices for the most entertaining slots.”
Types of Online Slots
There’s much more to online slots than just spinning reels these days. While classic reels and video slots tend to be the most common types, game developers are continually delivering new ways to engage and entertain players, creating a wider variety of gameplay mechanics and styles to enjoy.
Below, you can take a closer look at some of the most popular types of slots you’ll find at online casinos. Scroll through the images to see what style of gameplay and features you can expect.
The fun thing about slots developers is that their creativity seemingly has no limits. Personally, I’m looking forward to slots with enhanced social gaming features, virtual reality slots, and slots with increased skill-based mechanics or story-driven gameplay. These innovations are already well on the way, and I believe they’ll be game-changing additions and really exciting to follow.
Playing Online Slots with Real Money: RTP, Volatility, Limits
If you’re playing online slots with real money, it’s important to understand a few key factors that affect how each game plays and pays. Knowing these will help you choose slots that match your goals, budget, and playing style.
RTP (Return to Player): The average percentage of total bets a slot pays back to players over time. High RTP slots generally mean better long-term returns.
Volatility (Variance): Describes how often and how much a slot pays out. High-volatility games offer larger, less frequent wins, while low-volatility slots provide smaller, more regular payouts.
Betting Limits: These are the minimum and maximum amounts you can stake per spin. In the UK, the maximum limits are £2 for players aged 18-24, and £5 for players aged 25 and over.
By knowing what to expect, you can make smarter choices when playing slots for real money and enjoy a safer, more enjoyable experience. Mindful of these factors, and based on our opinions, we’ve also listed some of the best value online slots below:
Real-Money Online Slots
Slot Game
RTP
Minimum Bet
Volatility
Hit Frequency
Book of 99
99.00%
£0.10
High
29.83%
Blood Suckers
98.00%
£0.25
Low
41.00%
White Rabbit Megaways
97.24%
£0.20
Medium
27.60%
Jimi Hendrix
96.90%
£0.20
Low
30.10%
Book of Dead
96.21%
£0.10
High
23.77%
Slot Glossary: Hit Frequency & Other Important Terms
Before playing slots with real money, we always recommend making sure you understand how they work. This includes knowing common terms involving slot features, gameplay, payout rates, and more. Our glossary below can help improve your knowledge of the spinning reels, so you know what to expect and can play with confidence.
Helpful Definitions
Paylines
Lines across the slots reels that determine winning symbol combinations.
Return to Player (RTP)
The percentage of total wagered money a casino game returns to players over time, indicating the expected payout rate and fairness of the game.
Volatility (Variance)
A measure of how frequently and how much a game pays out, indicating the level of risk and potential size of wins over time.
Hit Frequency
How often the slot game results in a win.
Megaways
Originally developed by Big Time Gaming, offering players 117,649 ways to win across paylines in slots games.
Progressive Jackpot
A jackpot that grows incrementally as players make bets, accumulating until a player hits the winning combination to claim the increasing prize. Most often found in slots, and other networked online casino games.
Free Spins
Spins that don’t cost money, usually from bonus triggers.
Cluster Pays
Wins are formed by symbol clusters touching horizontally or vertically, rather than using paylines.
Not all slots are created equal and some can have their RTP (Return to Player) percentage adjusted by the casino site operator. That’s why it’s vital to play only at licensed online casinos, where game RTPs must be published and verified through regular independent audits.
Before playing online slots with real money, always check the game rules, information page or paytable to confirm its actual RTP rate. Look for trusted security seals such as the UK Gambling Commission (UKGC), eCOGRA, or iTech Labs, which indicate the casino is properly licensed and the games are tested for fairness and safety.
UKGC
eCOGRA
iTech Labs
Real-Money Online Slot Payments
Reliable payment methods are essential when playing online slots for real money. We’ve reviewed and tested a range of banking options to find the safest and most convenient choices for UK players. Our recommended payment methods offer fast deposits, secure withdrawals, and trusted processing, so you can focus on enjoying the games.
Alongside online slots, you can enjoy a wide range of other games at online casinos. The most similar options include video poker and instant-win games, which also combine quick gameplay with chance-based outcomes. You’ll also find classic table games like roulette, blackjack, and baccarat, offering different styles of play for when you want a break from spinning the reels.
Slots have never been more exciting or more accessible. Whether you love Megaways, jackpot chases, or classic reels, the casino sites we recommend will give you the safest and most entertaining options in the UK. These are some of our key highlights based on our in-depth slots casino reviews:
Every site listed on this page is licensed and UKGC-approved
We only recommend casinos with verified RTPs and fair play
You’ll find thousands of slot titles and new releases added weekly
Safe payments, mobile compatibility, and quick withdrawals matter
Bonuses and promotions have been tested for genuine value
Top game developers include Pragmatic Play, Play’n GO, Big Time Gaming
My final tip is to keep control of your budget and play smart. Look for the types of slots you most enjoy playing based on the gameplay and features available, remembering to check the paytable and game information pages, before you start spinning the reels.
Heath Chesters
Casino Expert
About the Author
“Moving into the iGaming industry was a natural progression for Heath, initially focusing on sports betting content for major brands. Following a trip to Las Vegas, that interest evolved to embrace online casinos, using his journalism background to explore and study gambling and gaming in fascinating depth.”
Frequently Asked Questions
How do you pick the best UK slot sites?
We only recommend sites with a full UK Gambling Commission (UKGC) licence. We verify the quality and quantity of their slots, assess payment security, check for tested and fair RTPs, and evaluate the true value of their bonuses and promotions.
Can I play online slots for free in the UK?
Yes, you can play free demo slots at casino sites, but first you must verify your age. Under UKGC rules, free-to-play or demo gambling games cannot be offered without age verification, whether they are a licensed online casinos, game developer websites, or slot review sites.
What are slot tournaments and how do they work?
A slot tournament is a competition where players compete on specific slot games for a chance to win extra prizes. Players earn points based on their gameplay and are ranked on a leaderboard. The highest ranked players at the end of the tournament share a total prize pool.
What is the difference between a slot's RTP and its Volatility?
RTP (Return to Player) is a percentage indicating the theoretical long-term payout (e.g., 96% RTP). Volatility determines the risk involved, so high volatility means infrequent but large wins, while low volatility means frequent yet smaller wins.
Are winnings from UK online slots taxed?
No. According to current UK laws, any money you win from online slots or other forms of gambling is completely tax-free. This is because the tax is levied directly on the licensed gambling operators, not on the individual player's winnings.
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Written By Heath Chesters
