Play Online Slots

Online Slots UK

Here at Slots UK, we offer some of the world’s best online slots. We have a selection of over 1,000 slots for you to play online, with a variety of exciting themes.

Each game offers its own style with exciting bonus features and potentially lucrative rewards. With over 1,000 online games available at Slots UK, we have something to accommodate all types of slot players, whether you like 3 or 5 reel games, low or high volatility or online slot games with bonus rounds.

New customers are in luck too. When you make your first deposit with us, you could win up to 500 free spins to use on some of the best online slots, with top titles such as; Fluffy Favourites and Starburst (Full Ts & Cs Apply).

This offer provides you with an excellent first online slot gaming experience at our epic online casino!

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Online Slots vs Land-Based Slots

There are two main types of slots: online and land-based ones. While both kinds serve the same purpose, they have slight differences. 

You can play slot games using your computer, laptop, smartphone, and tablet in an online casino. Online casinos let you play slots anywhere as long as your device is connected to the internet. Although land-based casino slots can be fun, online slot games enhance the overall gaming experience.

However, just like online slots, land-based casinos offer a wide variety of slot machines. Slot machines take the form of gaming cabinets you sit (or stand) on and play. Moreover, slot machines in land-based casinos are usually screen-based video slots, but some may not have screens at all.

The reels are attached to a large drum; you must pull a lever to spin the reels. Furthermore, online slot machine games have fun, interactive graphics, while land-based casino slot machines have a static design.

Another plus when it comes to online slots is that they offer engaging and exciting themes. Additionally, online slots often have five reels instead of the traditional three. And more reels means more chances of potentially winning.

The History of Slot Machines

Slot machines have a history that dates back almost a century. As soon as word about their existence got around, nearly everyone wanted to try them. 

With the first machines, a lever-operated the reels which showed faces on a deck of cards, making similar combinations that could be played in a poker hand.

In those days, winners were not rewarded cash as a prize. Instead, the first prizes were drink tokens. Then, later on, flavoured chewing gum was added to the mix. 

As technology progressed and electricity became a part of our everyday lives, slot machines came with sound, lights and other effects. Video slot machines were first invented and played in the Las Vegas Hilton Hotel in 1976.

In other words, these video slots were the predecessors to the online slots you find on most online casino sites today, complete with features like scatters, wilds, and multiple paylines. 

How to Play UK Online Slots?

Deposit online at our online slots site to play the best UK slots. Now that you know where online slots originated from, you may want to go ahead and spin a few reels of your chosen games. But, if you’re new to playing online UK slots, you may not know how to play them.

Slots do not require any special knowledge or skill to play, but understanding the game’s mechanics will help you form a more practical spin game strategy. So, here’s what you need to know:

  • Paylines determine whether or not a player wins in a real money slots game.
  • Each game has its own arrangement and number of paylines.
  • A typical game has 9 to 30 paylines.
  • Paylines mean that a game has X amount of different ways to win. For example, a 30 payline slot means that there are 30 different ways you can potentially win.
  • Some paylines run straight across the reels, while others appear to zigzag randomly.

Choosing how many paylines to bet on will most likely be your first step before every spin. If you decide to bet on a single payline, each additional payline will increase the price of your wager. The number of lines you bet on is the only thing you can choose, not which lines you want to win.

As you select how many lines to bet on, your wager will be multiplied by that number. To land a winning combination, you must line up at least three identical symbols on one or more paylines.

In most online casino games, the symbols do not need to be exactly next to one another, but they must be on a single line. For example, only two matching symbols are required for the line to win with a Wild symbol. 

Many UK online slots have scatter symbols that award either coins, free spins, or other slots bonuses.

What are the Best Online Slots you can Play?

The best online slots have a number of similarities including;

  • Unique themes
  • Strong graphics
  • Bonus features and rounds
  • Competitive RTP rates
  • Easy to play

#1 Starburst Online

Starburst slot

Starburst is one of our most popular online casino slots, with thousands of daily players. You may recognise it from featuring in our generous welcome offer, so you could find yourself playing this one with up to 500 free spins.

This online video slot has been produced by the developers over at NetEnt and has long been their most successful slot. Offering a competitive RTP of 96.1%, this game is viable for an array of different gambling budgets.

With a space-themed backdrop, this slot game offers a collection of excellent visuals as you race through space to collect as many winnings as possible in this online UK slot.

#2 Fluffy Favourites Slot

From the team at Eyecon Gaming this time, Fluffy Favourites has been a long-standing classic for many years within the online slot site community.

The game’s theme features a fairground setting with all your favourite childhood animals, really taking you back in time. This five-reel slot offers an RTP of 95.38%, which is worthwhile considering how fun this UK online slot has proven to be.

With exciting bonus features such as the Toybox bonus to look out for, this game never gets boring! Check it out now.

#3 Bonanza 

There is nothing better than playing Bonanza. This online UK slot offers a lot of depth and variety to the gameplay. It was developed by Big Time Gaming - an award-winning producer of new online slots.

Bonanza also offers an RTP of around 96%, similar to the last two slots. With exciting graphics and top-rated slot gameplay, this is one for anyone enthusiastic about slot games to try for themselves. 

Popular Online Slot Games Terms

While slots do not require you to have a high IQ to master, they do come with some tricky terms if you’re not familiar. Please do not fret. We are here to help. The following is the list of terms you might come across when playing online slot games:

Online Bonus Slots

Bonus rounds are special features included in most slot games. In addition, bonuses can appear anytime, and they come in all shapes and sizes.

A slot can offer a variety of bonuses, including random ones, character-based bonuses, free spins, and progressive multipliers. 

Certain symbols must appear on the reels to trigger a bonus round, usually wild symbols, scatter symbols, and bonus symbols.

Free Spins

As we have already mentioned above, there are several types of bonuses, one of which includes free spins. 

When you land three specific symbols, as well as scatters, you’ll usually trigger free spins. The number of spins varies according to how many symbols you land.

Wild Symbol

Wild symbols play an essential role in forming winning combinations. When it appears, it can replace any symbol to form winning paylines. 

These symbols can also appear in free spins and bonus rounds. However, wild symbols cannot replace scatter symbols.

Scatter Symbol

In a slot game, the scatter symbol is often regarded as a player's best friend as it can unlock a number of fun bonus features.

When a scatter appears on a reel, instead of having to line up a payline to win, it will trigger free spins, mini-games, or other bonuses. The scatter symbol is typically one of the highest paying symbols in a slot game, and its graphics will typically match the theme of that particular title.

Online Jackpot Slots

Jackpot slots are games that could payout the jackpot prize, which is typically the biggest payout. Moreover, jackpot slots come in a variety of shapes and sizes. 

You will find progressive jackpot slots, fixed jackpot slots, local jackpots, and network or pooled jackpots. 

  • A progressive jackpot - is made of an extensive network and grows with each player’s bet.
  • Fixed jackpots -  mean they don’t change and are not influenced by players. 
  • Local jackpots  - in local jackpots, all prizes are generated by bets made in one particular casino. The prize pool for these is usually smaller since fewer players contribute to the total and can only be won by registered players at a specific casino.
  • Network or pooled jackpots -  have the biggest payouts. The top prize is accumulated by wagers placed across various casinos on a specific pooled jackpot game.


Generally, the RTP (Return to Player) of a game is the percentage of stakes it returns to the player over a million plays. Therefore, a game’s performance is gauged by this method.

For instance, with an RTP of 94%, the game is expected to return 94p of every £1.00 staked over more extended periods. Various games offer different RTPs, some better than others.

However, a high RTP does not necessarily equate to big wins since games with lower RTP rates typically have more bonus features.

*All values (Bet Levels, Maximum Wins etc.) mentioned in relation to this slot game are subject to change at any time.

What Online UK Slots are available on Mobile?

Mobile offers the same type of online slots as desktop, and in some instances even more. Although mobile slots and online casino slots may look the same, they have distinct advantages and differences. The mobile slot games are standalone applications made for smartphones and tablets. On the other hand, online slots can be played on multiple devices, including PCs and laptops.

Using mobile slots allows players to access any casino game through a Wi-Fi or cellular connection from anywhere they can access the internet.

Online slots real money games require some internet connection, while some mobile slot games don’t.

At Slots UK, we offer our players the ability to play our fantastic slot games on mobile devices through any of your web applications. We recommend you download our Android app if you’re interested in playing slots on your mobile device. All our games are available to you on the app.

What types of Online Slots are Available?

Online slots can be found in thousands of variations. What makes them so popular is their diversity. Here are some of the major categories they fall under:

Classic Slots

Some slots mimic the earliest machines that were first available decades ago. Slot machines referred to as ‘classic slots’ are usually played on grids up to three by three or smaller and have no special features.

What appeals to many players about classic slots is their simplicity. Several providers offer classic slots online. Although they have more basic gameplay, they are designed with high-quality graphics and sounds, like other slot machines available today.

A few providers add a few additional features to their classic slots to be more appealing to today’s online gamblers.

Online Video Slots 

The term “video slots” refers to any online slot machine that uses computer-generated video animation. Virtually all online slots fall into this category.

As a matter of fact, any slot machine with a screen can be classified as a video slot. The video slot is also a type of slot machine you find in a land-based casino that uses a screen.

One of the most exciting things about video slots is that they are constantly improving both in design and gameplay.

3D Slots

A 3D slot, as the name suggests, is a game created with 3D graphics. Slots with 3D graphics are more immersive and provide a more engaging gambling experience than 2D graphics.

Moreover, these slots have excellent attention to detail and a high design standard. Their graphics also make these slots very attractive. Additionally, they also have enough features to make them worth playing.