Play Online Slots UK

Online Slot Games at 21.co.uk

Here at 21.co.uk, we have a list of the most popular slots in the UK that are fit to burst, with over 1000 slots online for you to play. Whether you’re preparing to embark on an Egyptian-themed journey to the Valley of the Kings in the Book of Ra slot or taking your chances of winning to brand new heights with sci-fi-themed titles, we have something to suit everyone in our repertoire - and it never stops growing.

For the choice of more traditional style games, we’ve got a great slot selection of classic titles for our players to enjoy. If you’re on the hunt for a more complex online slot, that’s not a worry! We have plenty of action-packed, bonus-led video slots too, from immersive storylines in titles such as Gonzo’s Quest and Centurion to brilliant bonus-filled ventures such as Wish Upon a Jackpot MEGAWAYS.

New online slots also make frequent appearances across our library of games, so make sure to keep an eye out for any new arrivals.

Everything You Need to Know About Online Slots UK

Online slot machines have rapidly evolved into one of the most popular types of UK online games, dominating the realm of both land-based and online gambling with their versatility and potential-packed gameplay. Online slots are the modern-day equivalent to the classic slot machines that were and remain extremely popular in bars, arcades and land-based casinos worldwide.

Access the best video slots in the UK anytime and anywhere from the device of your choice, whether that be spinning through the Vegas classics on your mobile, finding free spins on your tablet or discovering new slots on your desktop. Your favourite fruit machine or online slot games are never more than a click away.

Playing Slots Online

Online slots are simple to play:

• The first action in an online slot is setting your stake. Each game has a different minimum and maximum betting range, so check this before playing.
• After selecting your stake, you can click the spin button to place your bet and set the reels spinning once.
• The reels will eventually stop, revealing the outcome of the round. If you hit a winning combination, the payouts will be awarded accordingly.

Each slot game you play will have different rules and bonus features. You can use the in-game menu to navigate to the game rules, telling you everything you need to know about playing that specific slot.

For the most part, the core rules will always remain the same, with many online slots adopting a simple gameplay concept.

There is a lot of terminology to learn when it comes to slots, but our complete how-to-play guide has you covered with the finer details.

Examples of UK online slots you can play

There are hundreds of different online slots available from leading developers in the industry. You’ll find some of the best online slots in the world, including:

• Book of Dead
• Starburst
• Wish Upon a Jackpot MEGAWAYS

Or if you’re looking for something with more variety when it comes to the bonus feature on offer, check out some of the video slot machines we have in our collection, like The Goonies slot, which has up to 13 fantastic features and modifiers for players to unlock.

Maybe you want to stay loyal to more traditional, classic-style games. Don’t worry; we have you covered on that front too. Titles such as Reel King Mega are ready to play.

For our UK online slot players looking for an alternative to try out, we’ve introduced arguably one of the most innovative slot-inspired games in the business to our online collection - Slingo games.

Slot Providers for UK players

21.co.uk has dozens of fantastic online slot providers, some of which have been around for decades. Each of our providers is completely unique and has different focuses regarding the games that they create. We’ve created blogs to give you all the need-to-know information regarding our fantastic slot providers.

Slot Themes Available

If you're still looking for a slot for you, you can also explore our broad collection via individual themes.

Some themes have cemented themselves as staples in the world of online slots, and you're likely to find some of the most popular slot games that are part of those categories.

Browse the range of slot themes available at 21.co.uk to uncover some of the top titles across Anicent-Egypt, Fishing, Classic casino games and more.

Types of Slot Games at 21.co.uk

As online slots have evolved with the times, many different types of mobile slots have emerged onto the scene, and some have seized a fantastic level of popularity amongst players, offering up a variety of modern features and themes that pander to every preference. You can discover some of the best online slot games at 21.co.uk below.

MEGAWAYS: MEGAWAYS slots are one of the most innovative types of modern slot machines we’ve introduced to our online collection, presenting players with up to a colossal 117,649 possible ways to land a win each time you spin the reels. Not only that, but you can also find a bundle of bonus features waiting to be discovered. One of our favourite MEGAWAYS titles is the fabulous 88 Fortunes MEGAWAYS, which transports players back to the luxe 88 Fortunes.

Arcadic Fruit Machines: Following on from the popularity they formed in public houses and seaside arcades, fruit-themed slot machines have become solid staples of both land-based and online casinos. Adorned with arguably the most distinguishable symbols in the business, such as cherries, bells, 7s and bars, Arcade Fruit Machines stand as some of the most iconic and popular slots of all time - some of our favourites include the likes of 7s On Fire.

Mobile Slots: Online slots in the modern day are created for handheld devices such as mobiles and tablets. You can find all the crucial information surrounding these slots by checking out our mobile slots.

Cluster Win Mechanics: Cluster slots have become one of the latest crazes to take over the online slots world with titles such as the intergalactic Reactoonz and the fruity Jammin’ Jars. Like regular online slots, the idea is to match as many symbols as possible. They also take an aspect of cascading slots because as symbols are matched and disappear, more symbols fall in, allowing you to create consecutive winning combinations.

Cascading Reels: Cascading Reels slots (also known as Tumbling Reels) offer up extremely innovative, modern slot features that provide the chance for consecutive winning combinations. Each time a winning cluster is formed, the Cascading Reels feature works to remove all of the symbols involved in the win and allows fresh symbols to fall into their place. This will continue to occur until no more winning combinations can be made. We have numerous slots that include the Cascading Reels feature, with one of the most popular being Bonanza MEGAWAYS.