Online Slot Reviews
If you need expert advice and guidance on online slots, CasinoFans.co.uk covers the entire topic here and throughout our website. Online slots are the modern version of the slot games you often see in land-based casinos and via the 'fruit' machines in pubs and amusement venues across the UK. Only today's online slots are designed with much better quality than their land-based counterparts.
Online slots offer better and more extraordinary entertainment thanks to their modern, new-age in-game features, design, and theming. There are thousands of slot game providers in today's online casino market, each offering their unique take on slot games and progressive jackpots.
Many notable providers supplying the UK's casino market with premium slot games include Netent, Microgaming, Playtech, Pragmatic Play, Fantasma Games, Hacksaw Gaming, Nolimit City, Thunderkick, Red Tiger, Play N Go, Elk Studios, and Eyecon. These game studios release new slots every month that constantly push boundaries, classic rules, and conventions, as we will explore below:
Online Slot Reviews by CasinoFans in 2025
What Are Online Slots?
Online Slots are games where you spin the reels to create winning lines called ‘paylines’. To win a prize, you must land matching symbols on that line. Online slots are based on physical casino slot machines and can be played on a desktop, mobile, or tablet. They are sometimes known as Fruit Machines or Fruities or in Australasia - Pokies.
The concept of online slot games is quite simple, but what makes them interesting is the various adaptations and innovations, particularly in newer slot games. A wide variety of slot themes and gameplay features give online slots a modern edge over traditional land-based slot machines, which are now often considered outdated.
Type of Online Slots
The most popular online casino sites offer thousands of online slots, but which are the most popular type of online slots among players in 2025? While personal choice mainly comes into play, some standout slot games are currently hugely popular in the UK. The reason they are popular is simple. These slots are designed with great graphics, offer tons of fun and exciting game features and, most importantly – offer you the chance to win huge jackpots.
Look out for the following types of slot games that are hot right now:
- Megaways Slots: Many well-known game studios have collaborated with Megaways creators Big Time Gaming to offer increased active paylines, which in turn helps create larger payouts and wins. This type of slots have become popular and can be found at most new slot sites in 2025 where they are listed in the game lobby as top slots.
- Classic Slots: Everyone loves a good old-fashioned classic slot now and then, don't they? Classic slots are akin to the land-based slot machine, which feature (most of the time) three reels and classic icons, including lemons, bars, cherries and watermelons on the reels. They're simple, but many players love them because they're nostalgic and, for the most part, are super easy to play.
- Must Fall Jackpots: Slots that offer large Jackpots that fall every day, sometimes randomly or when you're playing selected slots tournaments.
- Slingo Slots: Slingo slots are hugely popular because the main aim is to combine the best parts of online slots and online bingo.
- Monopoly Slots: This is another classic that needs no introduction, but plenty of Monopoly slots are available at leading UK online casinos
- Branded Slots: Many slot games take on a brand name or franchise after securing the licensing rights. You'll often widely recognise names and brands in a slot game format. Top branded slots include Vikings, Gladiator, The Terminator 1&2, Jumanji, Ted, Back To The Future, Grease, Bridesmaids, Game of Thrones, The Last Kingdom, Dirty Dancing, and so many more - we're confident you'll find one of your favourites when browsing a new slot site!
- Fluffy Favourites Slots: There are many versions of this UK must play! Top Fluffy Favourites slots include Fluffy In Space, Fluffy Favourites Megaways, and Fluffy Favourites Mega Tap.
- Double Bubble Slot: Double Bubble slots are hugely popular. Perhaps you have seen their interesting and alluring TV ads?
- Rainbow Riches: There is plenty of charm in these leprechaun-themed slots, and there are also many different game versions. Many people love Rainbow Riches slots because they're all easy to play. Top Rainbow Riches slots include Rainbow Riches Free Spins, Rainbow Riches The Original Rainbow Riches Slingo, Rainbow Riches Megaways and Rainbow Riches Pots of Gold.
- Sweet Bonanza Slots: If you love candy-inspired, sweet saccharine games, then make sure you check out the entire Sweet Bonanza series of slots, and even a live dealer game from Pragmatic Play.
- Progressive Jackpot Slots: When you bet on a progressive jackpot slot, a portion of the money contributes to the slot machine's jackpot. The jackpot keeps increasing until a lucky player hits the winning combination, at which point the progressive jackpot resets and begins to grow again. Progressive slots offer the highest profit potential among all casino games.
Key Aspects of a Good Online Slots
Below is some guidance on what we believe distinguishes a good slot from a mediocre one, and this is what we suggest you look for when making your choice of what game to play next at your chosen online casino:
- RTP & Volatility: Great slot games generally have a medium to high Return to Player percentage (RTP%). The higher the RTP, the better the payouts will be. Usually, a reasonable RTP is around 96% or higher (this is the industry average). Nonetheless, we recommend not disregarding online slots with lower RTPs, as there could be a good reason for it. For example, the slot might offer a large progressive jackpot, making it worthwhile to play even though it has a slightly lower house edge. Furthermore, some slots don't have a fixed RTP %, which means the RTP % will increase the more you play!
- In-Game Bonus Features: A good online slot should have various built-in bonus features to help you create winning paylines and provide an entertaining, if not exhilarating, gaming experience. Popular UK slots offer exciting bonus features such as free spins, re-spins, multipliers, wilds, scatters, avalanche reels, expanding reels, colossal symbols, win-both-ways paylines, slot machine features, cascade reels, pick-and-click features, gamble features, or 243+ ways to win and also the Megaways mechanics (more on that in a moment).
- These features create an exciting gameplay experience, which is why many 'classic' slots don't get a ‘look in’ these days; the modern slots player will opt for newer slots every time over classic, first-generation slots because the latest slots are, put simply - more fun and worth playing in today's standards.
- Thrilling Themes: An interesting theme can make a slot machine more exciting. Popular themes include fun and cute cartoons with characters, Viking/Norse themes, Magic and Mystical themes, Space and Sci-Fi themes, Christmas, Halloween, and Easter themes. Many options are available, from the legendary Book of Dead slot to other ancient Egypt-themed slots like the Book of Ra, Cat Wilde and The Incan Quest, Book of Atem, and so many more. Additionally, there are numerous branded slots based on popular TV shows, such as Gladiator Slot, Who Wants To Be A Millionaire Slot, Deal Or No Deal Slor, The Masked Singer Slot, Vikings Slot, Bridesmaids Slot, Game of Thrones Slot and Baywatch slot. Seeing your favourite TV characters immortalised in an online slot is really fun.
- Progressive & High-Value Jackpots: The primary goal of playing online slots is to have fun and win money. It's essential to check out the potential winnings of a game to increase your chances of getting a better payout. Who doesn't enjoy the thrill of hitting a multi-million jackpot while playing online slot games? Some jackpots, like Divine Fortune, Mega Fortune, Mega Moolah Jackpots, Wowpot Jackpots and all of the Age of The Gods Jackpots, offer life-changing sums. While smaller jackpots may seem less appealing, it's important to remember that big jackpots are won very infrequently. Therefore, playing various jackpot slots, even the smaller ones, is an excellent way to increase your chances of winning. A good tip here is to look out for the many “Drops & Wins” slots available at most UK online casinos, which are provided by Pragmatic Play and offer random cash drops in real time!
- Maximum & Minimum Bet: Minimum and maximum bets are important aspects to consider, too, even though they may seem obvious or straightforward. Online slots that offer a maximum bet are the ones you should pay attention to because many online jackpots can only be won with the maximum bet. Additionally, you often get a higher payout percentage when betting the maximum amount. However, always check the game rules, as this may vary from game to game.
Mobile Slots
Nowadays, all slot game providers create their games using HTML5 technology, ensuring the slots work perfectly on mobile devices. However, it is recommended to verify the availability of older slots as mobile slots, as not all are available "on the go."
Understanding What RTP % Means on Online Slots
"What does RTP % mean?" is a question that often arises for casino players. The Return to Player %, or RTP for short, is a crucial concept discussed in this article and throughout the website. RTP represents the average amount (in UK 5£) that players win back from the slot itself. A higher RTP percentage implies a greater chance of winning some funds back. While most slots have a fixed RTP that remains constant regardless of the wager amount, the slot's RTP can increase as you continue playing. Always look for slots with the highest RTP %.
Online Slot FAQs
We've done our best to cover a wide range of information about slots on this page. However, you may still have additional questions that need to be answered before you begin playing slots online. Below, we have thoroughly addressed some of the most commonly asked questions about online slots in the UK. If something still remains unclear, please feel free to contact us, as we would be happy to provide any additional information you may need.
Are Online Slots Rigged?
Many people wonder if online slots are rigged. The answer is no, as long as the slots you're playing are licensed by a recognised body such as the UK Gambling Commission or the Malta Gaming Authority. Also, to ensure you're playing legit slots make sure the casino site you are playing at is audited by third-party regulators and is licensed by the UKGC. Ensure you keep within these lines, and you'll never play a rigged online slot!
How Can I Win Real Money on Online Slots?
When playing online slots, it's important to understand that it's a game of chance, and skill doesn't play a role. The outcome of online slots is determined by built-in software known as the "Random Number Generator" (RNG). This RNG cannot be manipulated by the casino or the player. It's essential to note that there's no software or strategy that can help you win at online slots. However, you can improve your chances by playing online slots with the best odds, which are those with the highest Return to Player (RTP %) percentage. Another option is to try your luck with progressive jackpots, which offer four or more different jackpots for larger prize pools.
Can I Play Demo Slots?
If you live in the UK, you might have noticed that it's challenging to find entertaining free slot games and demos that offer a simulated version of a slot game with a fun money balance (free credits). It's also less common to come across free no-deposit bonuses. However, we have integrated some real demo games directly from each casino game studio, allowing you to try new slots for free while enjoying the real experience at no cost. Simply verify your age, and then play for free above.
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