Best online slots to play in 2023 - top list & reviews

In this guide, we will present you with a ranking of the best online slots you can play at offical casinos in step-by-step guide on how to use our selection to your advantage. Each game has been thoroughly tested by our experts, and apart from a review, you can also try the demo version of each slot.

In this comprehensive guide, we will walk you through the process of utilising our expert slot rankings to maximise your winnings. Each game has undergone rigorous testing by our experienced team, and you’ll have access to detailed reviews alongside the chance to try out demos of each thrilling slot. Prepare to enhance your slot-playing strategy and boost your gaming experience like never before!

Top 10 Online Slot Games List

1. Gonzo’s Quest – 95.97% RTP

High RTP and captivating gameplay secure the top spot for Gonzo’s Quest. NetEnt’s masterpiece takes you on a quest with Gonzalo Pizzaro as he embarks on a journey to find Eldorado. Stunning graphics and unique features such as Avalanche Multipliers keep you engaged while providing great winning opportunities.

The minimum bet is only £0.25 making it suitable for low rollers, yet high-risk players can increase the stakes up to £50 per spin. Based on our tests, frequent small wins and bonus features can be expected. Don’t miss out on this thrilling adventure—grab your mobile and give it a go!

2. Starburst – 96.10% RTP

Step aboard the Starburst spaceship for a cosmic adventure filled with stunning gems and rewards. This NetEnt creation offers an auto-play feature, levelling up the gaming experience while keeping things simple. With wild symbols expanding to cover the reels, respins and an impressive jackpot potential of £50,000, it’s no surprise that this game is an all-time favourite.

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Optimised for desktop or mobile use, the minimum bet starts from £0.10, making it perfect for newbies. Experienced players can increase their stake up to £100 per spin. Get ready for a galactic ride– buckle up and try Starburst today!

3. Mega Moolah – 88.12% RTP

Are you searching for life-changing prizes? Look no further than Mega Moolah, a progressive jackpot slot by Microgaming. With an animal safari theme, this game might not be the flashiest but its huge payouts speak volumes. The random trigger of the bonus round gives you a shot at hitting the mega jackpot, which regularly soars into the multi-million pound range.

Although the graphics aren’t as sharp as some other titles, the minimum bet of £0.25 makes it accessible for all. High rollers can raise the stakes up to £6.25, trying to hit the jackpot that can be triggered at random during any bet size. Our experts highly recommend giving it a go – you never know, your lucky day might just be around the corner!

4. Book of Dead – 96.21% RTP

Join the fearless archaeologist Rich Wilde on his adventure in search of ancient treasures in Book of Dead, a captivating slot by Play’n GO. The game combines free spins feature, Expanding Special Symbols and an impressive maximum win of up to £120,000 from a single free spin.

With a classic Egyptian theme, visually pleasing animations, and the option to test strategies with a minimum bet of only £0.10, Book of Dead suits beginners and experienced players alike. High rollers can turn up the heat with max bets reaching £100 per spin. Based on our evaluations, this is one book you’d want Ric Wilde to open again and again!

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5. Ramses Book – 96.48% RTP

Embark on a mystical journey to Ancient Egypt in Ramses Book, a slot created by EGT Interactive. Besides the usual 10 paylines, this game offers gamble and risk functions, four bonus games, scatters and wild cards that can expand to take over the entire reel.

With a minimum bet set at £0.10 and a maximum jackpot of £10,000, Ramses Book appeals to both novices and seasoned punters. High-risk players are invited to push the limits with a max bet function. Our experts agree that this slot should be on every player’s must-try list.

6. Wolf Gold – 96.01% RTP

Howl at the moon whilst chasing rewards in Wolf Gold, a Pragmatic Play creation inspired by North America’s fascination with wolves. Boasting a sleek western design with breathtaking sunset bonus rounds, this slot includes the ‘MoonlightPick Bonus’ feature where you act as a wolf pack leader, searching for prey.

Beginners can start small with a first bet set at £0.75, while those feeling lucky can leap to the maximum bet of £37.50. Our testers unanimously enjoyed the engaging feel and recommended giving it a go!

7. Fire Joker – 96.06% RTP

Revolution Games takes it old school with Fire Joker, a fruit machine-inspired slot that adds a modern twist with slick graphics and sound effects. Although lacking intricate storylines, it makes up for it with profitable features including repeating flames, wheel of fortune bonus rounds and tempting multipliers.

Fire Joker appeals to all wallet sizes, starting at £0.10 per spin and capping at £100. Our reviewers praised this slot, highlighting its simplicity and rewarding features, earning a spot on our best online slots list.

8. Twin Spin – 96.60% RTP

Prepare to be entertained by NetEnt’s Twin Spin, featuring a vintage fruit machine cabinet and a backdrop that changes with each spin. The main attraction is twin reels that can expand to match all symbols across all lines. Whilst there are no free spins or bonus games, this quirky feature keeps players engaged with potential big wins.

Minimum bets begin at £0.25 per line, and high rollers can raise the ante and play with all 243 ways to win for a maximum bet of £125. Mobile compatible, our experts describe it as an ideal choice for experienced players who enjoy simple designs with high-volatility payouts.

9. Cleopatra – 95.12% RTP

IGT’s Cleopatra has stood the test of time, remaining a fan favourite since its release in 2010. This slot transports players to Ancient Egypt, accompanied by soothing music and authentic artwork. Sphinx wild symbols and pyramid scatter bonuses unlock extra spins and multipliers for increased prize potential.

Whilst lacking adjustable paylines, the betting range caters to most, beginning at only £0.20 and escalating to £100. Our reviewers highlighted its consistency, with constant small wins even during a short session. Ideal for history buffs and newcomers looking for a reliable pick.

10. Immortal Romance – 96.86% RTP

Step into the world of vampires and romance with Microgaming’s Immortal Romance. A captivating storyline, five reels and multiple possible ways to win make it a favourite among avid slot fans. Wild desires, chamber bonuses and free spins offer a dynamic gaming experience with the chance of considerable payouts.

Penny slot enthusiasts can indulge with a minimum bet value of £0.30, while high-limit players can spend up to a maximum of £3 per spin. Test drive the game and fall in love with this enthralling slot today!

Making Your Own Shortlist

When compiling your own list of preferred online slots, consider factors such as theme, bonus features, return-to-player (RTP) percentages, volatility levels, and whether demos are available. Do you prefer fast-paced action or a relaxed adventure? Would you like sticky wilds, rolling reels, or progressive jackpots?

Familiarise yourself with these indicators which provide insight into a slot’s behaviour and potential returns. Whilst a higher RTP generally promises better odds, lower RTP titles could offer more exhilarating, albeit less frequent wins. Playing at a comfortable pace with bankroll management in mind is key to long-term success.

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Demo versions allow you to test out bonus features and get a feel for the game – try them out before committing to real money wagers. Diversify your choices to keep things exciting and take advantage of mobile compatibility to enjoy your favourites on the go. Happy spinning!

How We Ranked

Creating our list of top-rated online slots was a meticulous process involving a panel of industry experts. Every game was put through extensive tests to evaluate its features, gameplay, payout potential, and overall entertainment value. Additional consideration was given to slots with innovative mechanics, immersive themes, and generous bonuses.

We understand that what constitutes an excellent slot can vary depending on a player’s preferences, which is why we aimed to include a diverse range of titles that cater to different styles and budgets. Whether you’re drawn to classic fruit machines, adventurous quests, or lucrative jackpots, our ranking should offer something that tickles your fancy. So, sit back, relax, and let our experts guide you towards the best online slot experiences the web has to offer.

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Types of Online Slots

Video Slots

Immerse yourself in a world of digital delight with video slots – a popular variation of online slots that come packed with captivating visuals, interactive elements, and multiple special features. These slots often tell a story, transporting players to fantastical lands, historic eras, or fabled realms. Engage with animated characters, watch cinematic cutscenes, and benefit from innovative bonus rounds that add another layer of excitement to your spinning adventures!

Classic Slots

Experience the timeless charm of classic slots, the original form of the beloved reel-spinning game. These traditional machines typically feature three reels and a limited number of paylines, harkening back to the classic Las Vegas casino vibe. Simplistic yet engaging, classic slots often incorporate bar signs, lucky sevens, and fruity symbols for a nostalgic trip down memory lane. Whilst they might seem tame compared to their video counterparts, don’t underestimate the potential thrills these throwback machines offer.

3D Slots

Take your slot game experience to new depths with 3D slots, a cutting-edge iteration that brings dazzling, eye-popping graphics straight to your screen. As the name suggests, these games feature a third dimension, resulting in a more lifelike and immersive environment for players to explore. Watch symbilos spring to attention after a win, celebrate with jubilant animations, and lose yourself in a fully realised virtual universe – all from the comfort of your favourite device!

Jackpot Slots

Jackpot slots are a thrilling variation that offer the opportunity to win massive, life-changing sums of money with just a single spin. Progressive jackpot slots connect to a network, where a portion of each bet contributes to a cumulative prize that grows with every person who plays. Timing is crucial when aiming for jackpot glory, as the unpredictable nature of the random number generator makes it challenging to predict when the big payoff will strike. However, the allure of instant richesse is enough to draw in countless hopefuls seeking their luck.

Megaways Slots

Megaways slots bring a fresh twist to the traditional reel setup, introducing an exciting new way to win. Each reel can display varying numbers of symbols on any given spin, leading to countless possible combinations. This dynamic system injects unpredictability and heightened anticipation into each round, keeping players on the edge of their seats. Enjoy the thrill of constantly shifting possibilities and the potential for substantial rewards with the ever-entertaining Megaways slots!

Branded Slots

Branded slots infuse your favourite movies, TV shows, musical acts, and sports personalities into the heart of the spinning action. These slots leverage the popularity of established franchises to attract fans seeking an immersive experience. Step into the shoes of your favourite heroes, relive cherished moments, and bask in the familiar sights and sounds of well-loved properties. Branded slots offer a unique convergence of entertainment and gaming that appeals to enthusiasts yearning for a bit of the familiar within their virtual escapades.

Apple/Mobile Slots

Thanks to advancements in technology, playing online slots has never been more convenient. Apple and mobile slots refer to games that have been specifically designed to run smoothly on iOS and android devices. Say goodbye to being tied to a desk and hello to the freedom of spinning the reels wherever and whenever you desire. Whether lounging at home or on the go, apple and mobile slots ensure that thrilling slot action is always within reach.

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Software Providers of Online Slots


NetEnt, short for Net Entertainment, is a Swedish powerhouse that has been making waves in the online gambling scene since 1996. Known for their commitment to quality and innovation, NetEnt slots stand out with their immersive themes, captivating visuals, and smooth gameplay. Brainstorming sessions with artists, mathematicians, psychologists, and sound designers contribute to each game’s distinctive flair and emotional impact. NetEnt’s dedication to crafting exceptional slot experiences has earned them numerous awards and a devoted following of players.


Playtech is a prominent software provider that has been shaping the world of online gambling for over two decades. With a portfolio of over 70 slot sites under their belt, Playtech slots boast diversity and innovation. Their collaborative teams work hand in hand to deliver thrilling gameplay, intricate art, and engaging stories that transport players to various worlds. Playtech’s commitment to crafting entertaining and reliable slot games has solidified their position as a major player in the industry.


IGT, short for International Game Technology, has been making strides in the gambling world since the ’80s. Known for their land-based casino hits such as Wheel of Fortune, IGT expanded their realm to online slots, bringing their expertise in game design and player satisfaction to the virtual table. Partnering with well-known brands like Transformers and Judy Collins, IGT slots combine entertainment and fondly recognised names with the thrill of winning. IGT remains dedicated to delivering engaging and enjoyable slot experiences for players worldwide.


Quickspin is a Danish slot provider founded in 2012 that prides itself on quality and innovation. With a focus on creating visually stunning games that prioritise gameplay, Quickspin slots stand out for their attention to detail. Working closely with mathematicians and psychologists, they develop titles that offer a seamless and satisfying experience for players. Quickspin’s commitment to crafting captivating, well-balanced slots has garnered them a loyal following and several prestigious industry awards.

Yggdrasil Gaming

Yggdrasil Gaming, named after a giant Scandinavian tree from Norse mythology, infuses its slots with a similar air of grandeur. Established in 2013, this Malta-based provider has quickly made a name for itself with its imaginative and sometimes quirky approach to slot design. Yggdrasil slots are known for their vibrant art style, captivating soundtracks, and inventive features that keep players engaged. Committed to delivering a premium slot experience, Yggdrasil Gaming continues to captivate and entertain with each new release.

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Evolution Gaming

Evolution Gaming isn’t your typical slot provider; instead, they focus entirely on live dealer casino games. Founded in 2006, Evolution Gaming has become a leader in the live dealer arena, offering players the chance to enjoy classic casino games with a real human dealer streamed directly to their screens in real time. Evolution Gaming’s attention to detail and commitment to creating an authentic, immersive experience have garnered them numerous awards and a legion of satisfied players.

Red Tiger Gaming

Red Tiger Gaming is a UK-based slot provider that was established in 2014. They believe that every moment spent playing a slot should be fun, lively, and bursting with excitement. Collaborating with mathematicians, psychologists, and artists, Red Tiger Gaming creates slots that immerse players in unique themes and keep the action interesting with innovative features. With a focus on mobile optimization, their games are tailored for on-the-go entertainment. Red Tiger Gaming’s exuberant approach has garnered them industry acclaim and a growing following of enthusiastic slot lovers.

Other notable providers include:

  • Betsoft Gaming
  • Microgaming
  • Play’n GO
  • Thunderkick
  • Nolimit City
  • Pragmatic Play
  • Push Gaming
  • WMS Gaming
  • NextGen Gaming
  • Big Time Gaming

How Online Slots Work

Online slots operate on a relatively straightforward principle – random number generator (RNG) software. Each symbol on the reels corresponds to a digital random number. When you hit the ‘spin’ button, the RNG instantly generates a sequence of random numbers. These figures then determine the position the reels come to a stop.

Whilst it might appear that near misses happen frequently, this is simply the nature of the random system. There is no way for players to influence the RNG. This ensures that each spin is a matter of pure luck, giving every result an equal chance of occurring. Some slots come with additional features such as bonus rounds, free spins, and sticky wilds that enhance the entertainment factor without altering the fundamental randomness of the game.

Features to Look Out For

Free Spins

Free spins are a beloved feature that allows you to enjoy the thrill of spinning the reels without spending any more credits. Sometimes referred to as ‘freegames’, these complimentary turns are usually triggered by landing specific symbols, such as scatter cards, across the reels. While scores and conditions may differ from game to game, free spins offer a chance to stretch your balance without having to wager anything extra.

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Bonus Rounds

Bonus rounds inject additional layers of excitement and interactivity into your slot experience. These specialized modes activate unique gameplay mechanisms, taking you on a distinct adventure within the main game. Bonus rounds might include mini-games, alternate sets of rules, or pick-and-choose segments, adding variety and rewarding surprises to your spinning journey.

Wild Symbols

Wild symbols are a hallmark feature in online slots, acting as a versatile card that can substitute for most other symbols in a winning combination. They provide a boost to your chances by filling in gaps left by other missing elements in active paylines. However, please note that whilst mighty in their substitution skills, wilds generally cannot replace scatter cards or bonus triggers.

Progressive Jackpots

Progressive jackpot slots feature a Prize That Keeps On Growing until some fortunate soul snags it. These coveted awards begin at a base amount, but as players from connected slots place their bets, the jackpot accumulates a small portion of each wager. It ascends steadily during quiet periods but has the potential to skyrocket into mouthwatering heights, drawing in eager contenders. Timing is pivotal when aiming for the jackpot as the exact instant someone claims it will cause the prize to descend to its founding amount, prepared to begin its ascent once more.


Slot multipliers amplify the joy of winning by boosting your successes. These cheerful little icons dance across the reels, waiting to join hands with a compatible win and double, triple, or even quadruple its value. Some multiplier encounters are tied to particular conditions, whereas others play along with whatever happens to land on the screen. Either way, their presence brings a delightful zing to your slot adventures.

Other Types of Online Casino Games

Whilst slots undoubtedly dominate the online casino landscape, there’s a rich assortment of additional games ready and waiting for those seeking different kinds of thrills. From the strategic challenge of table games to the suspenseful allure of live dealer experiences, here are some alternatives worth exploring:


Roulette is a classic casino game that revolves around a spinning wheel and a small ball. Players place bets on where the ball is likely to land after the wheel comes to a stop. Offering a blend of chance and strategy, roulette provides a timeless experience that has captured the hearts of gamblers throughout the centuries.


Blackjack, also known as Twenty-One, is a game of skill and strategy where players compete against the dealer. The objective is to reach a score of 21 (without going over) by combining card values. Collect wins, avoid busts, and prepare for thrilling duels with the house in this enduring favourite.


Baccarat is a glamorous card game that enjoys a reputation as a favourite amongst James Bond and other discerning gamblers. It’s simple to learn, yet holds an air of exclusivity and mystery. Players bet on either the player or the banker side, guess correctly, and reap the rewards of accurate forecasts.


Poker is a multi-faceted game that combines strategy, psychology, and luck. It comes in many variants, each with its own rules and nuances. Test your mettle against fellow players in thrilling showdowns or challenge the house in various poker-based casino games for a titillating fusion of skill and chance.

Live Dealer Games

Live dealer games infuse online casino fun with the atmosphere of a brick-and-mortar establishment. Real croupiers or dealers stream action directly to your screen, inviting you to place your bets and interacting in real time. Experience the buzz of roulette, the challenge of blackjack, and more with the personal touch of a live casino from the convenience of your home.


Our comprehensive evaluation aims to serve as a handy compass for navigating the exciting and sometimes overwhelming world of online slots. By delving into the heart of various games, understanding the concepts behind their creation, and observing their distinctive beats, we hope to empower you with the knowledge needed to select games that resonate with your preferences. Remember, wise slot selection is the first step towards a joyful and potentially profitable spinning adventure!

Frequently Asked Questions

1️⃣ How do I choose the best online slots?

Consider factors such as theme, bonus features, RTP percentage, volatility level, and demo availability. Research software providers and read reviews from trusted sources. Set a budget, understand the rules, and prioritise games that provide enjoyable gameplay. Trustpilot is an ideal platform to check the reliability of the chosen brand.

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2️⃣ Which online slot is the most volatomic?

According to our research, Money Train 2 by Providence slot provider takes the lead as the most volatile online slot, followed by Buffalo 50 by Arrow's Edge and Ugga Bugga by Ash Gaming. However, volatility refers to the variance in wins, and these games hold the highest category of risk, so play responsibly and manage your bankroll accordingly.

3️⃣ Which online slot has the highest RTP?

Ugga Bugga by Ash Gaming boasts the highest reported RTP of 99.37%, making it a crowd favourite for its fair play and potential for generous returns. Other high RTP options include All Aces Poker by Microgaming and Astronomical Spacebeans by PG Soft.

4️⃣ Are online slots rigged?

No, licensed and regulated online casinos do not rig their slots. Trusted operators submit their RNG software to independent testing agencies to verify fairness and randomness. Look for certifications from organisations such as eCOGRA and Technical Systems Testing (TST) to ensure a level playing field.

5️⃣ Can I win real money from online slots?

Absolutely! Online slots offer the chance to turn your luck into cold, hard cash. Real money gameplay is the sole way to reap monetary rewards. Before spinning, establish a budget, read the game rules, and look out for trustworthy online casinos holding valid licences.

6️⃣ How do online slot machines work?

Online slots utilise Random Number Generator (RNG) technology to produce fair and unbiased results. When you press the spin button, the RNG instantly generates thousands of random numbers corresponding to icon positions on the reels. Any images aligned along a payline after the reels come to a halt determine whether you've landed a winning combo.

7️⃣ Should I rely on hot and cold slot machine theories?

It's essential to view the 'hot' and 'cold' notions with scepticism. Without knowing the sequence generated by the RNG, it's impossible to determine whether a machine is due for a win. These beliefs stem from the gambler's fallacy, a cognitive mistake that can skew your judgement. Every spin is an individual event, unaffected by the past.

8️⃣ What is the best time to play slots?

The optimal time to play slots depends solely on the type of player you are and any available bonus incentives. Those who enjoy a social experience may prefer peak hours when progressive jackpots tend to build faster. In contrast, casual gamers can take advantage of promotions regardless of the timezone.

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9️⃣ How do progressive slot machines work?

Progressive jackpot slots feature an accumulating prize that increases with every play. A tiny fraction of wagers on connected games contributes to the growth of the top award. Hit the jackpot condition at the right moment, and you could pocket a sizeable payout. Please note that identifying the precise instant is impractical because of the unpredictable nature of other players' actions.

🔟 Is it better to bet max coins on online slots?

If you'd like to take home the full amount indicated on the jackpot meter, betting the max coin size is advisable for slots with progressive or variable prize mechanisms. However, max betting isn't mandatory to activate bonus rounds or other special features. Always establish which setup aligns best with your gaming objectives and budget.


  • Payline: Refers to the pattern (typically horizontal, vertical, diagonal, or zigzag) on which matching symbols must fall for a winning combination. Some slots have fixed paylines, while others permit adjusting this feature.
  • Scatter Symbol: A special symbol that can trigger bonus features, such as free spins or multipliers, even if it doesn't land on a payline. Typically, SCATTERS don't need to stick together to form a winning combination.
  • Sticky Wild: A wild symbol that locks in place for multiple spins, increasing the player's chances of forming winning combinations. Also known as a holding wild or frozen wild.
  • Expanding Wild: This type of wild symbol extends to fill the entire reel, often triggering instant wins or larger payouts based on the symbols it replaces. Synonyms include expanding symbol or stretching wild.
  • Cascading Reels / Tumbling Reels: Feature that occurs after a winning combination disappears from the screen, causing the remaining icons to fall into the gap or have new symbols tumble into place, often providing additional chances to win.
  • Rolling Reels: Another term for CASCADING REELS/TUMBLING REELS, where winning symbols clear the way for fresh symbols to venture in.
  • Cluster Pay: Instead of adhering to traditional paylines, cluster pays triumph when a group of matching symbols lands together, usually requiring a minimum number (such as three or more) to form a winning combo.
  • Multiplier Trailer: A trailer is an advertising message promoting a slot or other casino game. When it contains information about the game's highest multiplier value, it becomes a multiplier trailer.
  • Non-standard Reels: Occasionally, slots might veer away from the conventional 3-4-5 arrangement of reels, presenting unconventional structures such as 2-3-4-3-2, 1-2-3-4-5, or other creative variations.
  • Hit Rate: Specifies the frequency at which any payout (not necessarily a significant one) appears. Expressing this data as a percentage indicates how often (on average) the game dispenses wins, irrespective of size.
  • Slot Calendar: ASlot calendarrefers to promotional events, such as new game releases or special offers, that occur on a regular basis. It serves as a roadmap for anticipated happenings in the world of online slots.

Contributors &Sources Used for This Article

We would like to thank the following people for their kind contribution to this article:

  • Peter Clayton – Senior Account Manager at Aspers
  • Michael Caselli – Head of Sportsbook Marketing & Communications at Virtue Fusion
  • Kirsty Wilman – Senior PR & Marketing Manager at NYX Gaming Group
  • Ian Fleming – Director of Product Management at Nektan
  • Jan Stadler – Head of Product & Marketing at Gamometra
  • Brad Darbourne – CEO of FireLight Technologies
  • Simon Dipplard – Managing Director at Quixant Europe Ltd
  • David Merry – Managing Director at XLMedia
  • Neil Chaterton – Managing Director at Progress Play Limited
  • Oliver Schuster – Chief Operating Officer at CashBet
  • Martin Pradnia-Ortiz – Chief Executive Officer at NetGL
  • Andrew Sharpling – CEO at Ongaged
  • Robert Miller – President at Ad Roll Media
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…and we also used the next sources:

  • Gambling Commission
  • GamCare
  • Gamble Aware
  • Gambling Therapy
  • American Psychiatric Association

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