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New players only, £10 min fund, £200 max bonus, 65x Bonus wagering requirements, max bonus conversion to real funds equal to lifetime deposits (up to £250) full T&Cs apply

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New players only, £10 min fund, £200 max bonus, 65x Bonus wagering requirements, max bonus conversion to real funds equal to lifetime deposits (up to £250) full T&Cs apply

Welcome to the Best Slot Sites in the UK for 2023

Slot Sites Welcome Offer Rating Secure Link
Wizard Slots Logo Up To 500 Free Spins on Starburst 5 Star Rating Visit
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Today, there is massive competition among online casinos. All these operators want the most significant chunk of players on their website and do everything possible to reel them in. Some do this by offering the best online slots, while others use amazing bonuses, and others can go as far as letting players play for free with free spins offers.

These are only a few tactics used to reel in players, and these can be confusing. This is because some UK slot sites do it only to lure players in and go back to their default setting when players have registered. Fortunately, we, at Slot Sites UK, do things differently.

We offer a collection of the best slot games, amazing 24/7 customer support, numerous payment options, and unique promotions that players can benefit from every week, not just when they first sign up (Full Ts & Cs Apply)

Register on our platform today and enjoy all your favourite online slot games for real money on PC and mobile devices. For more details on our games, promotions, license, banking methods and the best online slots in the UK, keep reading this page.

Types of Games Available at the Best Slot Sites

Because of how popular online slots are among players, there have been many variations created today. It is imperative to understand each of them, so you know the right one for you. Some of the common variants you will find in the best UK slot sites include:

Classic Slots:

These are also referred to as 3-reel slots, and they have existed since 1899 in land-based casinos. The online variant of this game keeps the classic look and feel of the game. It typically comes with 3-reels and some symbols. This is an ideal option for players who want to play fast games or games without complexities on UK slot sites. Some popular classic slots in online casinos include Break Da Bank and Super Nudge 6000.

5-Reel Slots:

These slot games are share lots of similarities with the classic slots. They are also prevalent among players in most slots site. However, they have more reels, paylines, along with improved sounds, graphics, and visuals. Many players enjoy playing these slots on UK slot sites because they are easy to understand, like the classic slots, but give more chances of winning because of the additional reels and paylines. Games with 5 reels include Thunderstruck and Wild Panda.

Video slots:

Video slots are different from the typical classic slots. These slots place a massive emphasis on modern gameplay instead of the simplicity of the classic slots. Most online slots today belong to the category of Video slots, and they typically come in 5-reels, but you will find others having up to 30 or more. In addition to immersive gameplay, Video slots tend to have fantastic bonus features, wilds and scatter symbols that make slots highly entertaining. Great examples of video slots include Starburst and Gonzo’s Quest.

3D Slot Games:

3D slot games are like video slots in terms of bonus features, wilds, and scatters. However, slots in this category make games more interactive using sound effects and life-like animations aligned with the game theme. They also come with unique storylines that tend to keep players occupied.  If you love games that offer interaction, then these slots are right for you. Popular 3D slots you will find on any top slot site include titles like Robin Hood and Marvel Slots.

Progressive Jackpot Slots:

Slot games typically come with a fixed jackpot prize that players will win during gameplay. However, progressive jackpot slots do things differently since the jackpot prize is not fixed. Here, the price increases gradually as any player plays the slot game in any online casino. This works because progressive jackpot slots are linked via a network which means as any players wagers, a part of it is deducted and added to the jackpot prize.

Once a player wins the jackpot, the counter resets and begins from scratch. Progressive jackpot slots offer the largest payouts to players in UK slot sites running into millions. Popular progressive jackpot slot games you will find on any leading slot site include Mega Fortune and Mega Moolah which currently holds the record for the largest payout ever.

Branded Slots:

These are slot games linked to game shows, movies, sports teams, music, and other popular brands. Games in this category come with better graphics since they have a successful brand behind them. They are ideal for players loyal to specific brands and want to play a slot game relating to these brands on a slot site. Common branded slots you will find on any top slot site include Ted and The Dark Knight.

We offer all these slot variants on Slot Sites UK. Register today and make your pick from the tons of options available. You will also be eligible for our welcome offer where you can receive a 100% match bonus of up to £200 with your first deposit (Full Ts & Cs Apply).

Best 10 Online Slots to Play in 2023

There are tons of online slots available today, and it will be impossible to play each one to find the best one. Fortunately, Slot Sites UK has done the hard work for you, and we have put together a list of slot games you can play for real money on our platform or other leading online slot sites. Check out the table below for details on each of these games.

Best Slot Game Title


Rows, Reels, Paylines





3 rows, 5 reels, 10 paylines



Gonzo's Quest


3 rows, 5 reels, 20 paylines



Wolf Gold

Pragmatic Play

3 rows, 5 reels, 25 paylines



Bonanza Online Slot

Big Time Gaming

4-7 rows, 6 reels, 117, 649



Book of Dead

Play'n GO

3 rows, 5 reels, 10 paylines



Big Bass Bonanza

Pragmatic Play

3 rows, 5 reels, 10 paylines



Legacy of Dead

Play'n GO

3 rows, 5 reels, 10 paylines



Gonzo's Quest Megaways

Red Tiger

7 rows, 6 reels, 117, 649



Avalon II


3 rows, 5 reels, 243 paylines



Thunderstruck II


5 reels, 243 paylines



You can play all these games and many more from the same software providers on Slot Sites UK. Register today and claim our welcome bonus of a 100% match bonus up to £200 on your first deposit (Full Ts & Cs Apply).

How to Play Online Slot Machines

Online slots work in a simple manner. When you want to play slots online, all you need to do is place your desired bet amount, spin the reels, and hope you land a winning combination. Simple right?  Well, not really. Online slots consist of many important aspects that make them work. To get the best chances when playing online slots on online slot sites, you need to understand these parts and what they do. Here are the most important:

  • Reels: These are the columns that consist of symbols or Icons. Reels come in an average of 3-5 but could be more in most cases.
  • Paylines: This is the pattern on the reels that determine if you get paid. It is usually predetermined, and landing the right number of winning combinations triggers a win. Paylines tend to differ and range from 1- 100 or more, depending on the game. Other slot games with multi-payline features could have as high as 117,000 winning ways.
  • Wager/Bet: Before you can spin the reels on a slot, you will first be required to place a bet. Every slot game allows different minimum and maximum wagers, which you need to understand before you play.
  • RTP: This is also known as the Return to Player, and it is crucial when choosing a slot game. It is the number that shows the total amount that comes back to players in slots through prizes. This number is written in percentage and ranges from 88% -99%. To get the best result, you need to go with slot games with an RTP of 96% or more.
  • Volatility: This is the level of risk attached to a slot game. This could range from low, medium, or high volatility. Low volatility slots have low risks, while high volatility slots have higher risks. But it is also important to note that the higher the volatility, the higher the prize attached.

Online Slots Bonuses & Special Features

To ensure slot games remain entertaining for players, software providers incorporate many special features to make them fun. Here are a few of the features you will commonly find in online slots when playing on the best slot sites:

  • Wilds: This feature replaces any standard symbol in the game to help complete a winning combination. Wilds could come in various forms, including cascading wilds, sticky wilds, stacked wilds, etc. This is usually dependent on the slot game you play, but they all serve the purpose of boosting your wins when you play slots online.
  • Scatters: This is a special symbol that can trigger a win, bonus game, or free spins. However, you will need to fulfill special conditions for it to work, and these differ depending on the slot game. In most slot games, you will need to land 3 scatters or more to get the associated rewards.
  • Multiplier: This is a special feature that helps boost your winnings by a specified amount. Multipliers range from 2x to as much as 500x or more!
  • Free Spins: This feature allows you to spin the reels for free on a slot site just as the name suggests. You can trigger it during the base game or when you land the required number of scatter symbols. In most cases, the free spins come with multipliers and wild symbols, all of which help boost your wins.
  • Gamble Feature: There are slot games that come incorporated with a gamble feature. This feature offers you the opportunity to double or quadruple your win. However, if you lose, it might affect your entire winnings.

Highest Paying Online Slots UK

Now that you know a bit more about how to navigate around slot sites and games, let’s go deeper into the mechanics of slot machines. The RTP or Return to player of a slot game you choose on a slot site has a lot of influence on how much comes back to you.

Like we stated earlier, this number ranges from 88% - 99%, and the higher the better. Simply put, if you want to get the best returns for your wager, you will need to play slots with high RTPs. In the table below, you will find a list of the highest RTP slots you can play on the best online slot sites.


Software Providers

Rows, Reels, Paylines



Ugga Bugga


10 rows, 3 reels and 10 Paylines



Mega Joker


3 rows, 3 reels, and 5 Paylines



Book of 99

Relax Gaming

3 rows, 5 reels, 10 paylines



Ooh Aah Dracula


3 rows, 5 reels, 10 paylines



Jackpot 6000


3 rows, 3 reels, 5 paylines





3 rows, 5 reels, 10 paylines



Some other high payout slots that you can on Slot Sites UK include Jack Hammer, Blood Suckers, Beverly Hills, White Rabbit and Uncharted Seas. Join us and play the above with our welcome offer (Full Ts & Cs Apply).

Top Mobile Slot Sites

Almost everyone today has a mobile device, and more people are starting to delve towards mobile casino games. Now, many games can be accessed on mobile devices, and the online slots sites are starting to take a cue.

Now, most online casinos have a mobile platform that allows players to play on Android on IOS devices. These platforms can run flawlessly using the mobile browser or by downloading the associated app. The great part is that they run without compromising the quality of games as they can adapt to any type of screen.

Check out the table below for some of the top mobile online slot sites you can play in today.

Casino Name

Minimum Deposit

 Welcome Bonus Offer

Slot Sites UK


1st Deposit: Receive 100% match bonus up to £200. (Full Ts & Cs Apply)

Barbados Bingo


Spin the Mega Reel for a chance to win amazing prizes, including 500 free spins for various slot games.

Slots Baby


A chance to spin the Mega Reel for an opportunity to win fantastic prizes. These include 500 free spins on various slots.

Wizard Slots


Spin the Mega Reel to win amazing prizes, including 500 free spins.

Easy Slots


Spin the Mega Reel for a chance to win various prizes, with up to 1000% slots bonus. 

Software of UK Slot Sites

Online slot sites do not create the slot games they offer by themselves. Instead, the games are powered by software developers who specialize in creating casino games. There are tons of developers today, but some of them have been able to perfect their art better than others. Here are a few of the leading developers you will find on a slot site:


This is another top developer that was developed in 1999 and has continued to grow since then. Now, there are hardly any online slots sites today without game releases from this developer. Playtech’s collection consists of numerous titles, including branded slot titles like The Dark Knight.


This is a reliable software developer that runs its operations from the Isle of man. It has been existing since 1994 and has managed to become a force to reckon with today. The developer is known for tons of leading online slot games, including progressive jackpot slots like Mega Moolah, known for its life-changing payouts.

You can expect to find amazing features in Microgaming slot titles, including wilds, scatters, and free spins. The game releases from this developer also come with amazing graphics and sound effects that players can't do without.


This is another popular software developer that has been developing slots for online slots sites since 1996. It is backed by a ton of experienced developers and runs its operations from Sweden. The team behind NetEnt ensures that players get amazing games that will help keep them entertained.

This developer has a detailed collection of jackpot slots that have various themes and amazing graphics. Some of the most popular releases from this developer include Mega Fortune, Starburst, and Gonzo’s Quest.


IGT, also known as International Game Technology, is a top name in the gaming sector. It was developed in 1990, which makes it one of the oldest software developers. IGT has a huge collection of slot games based on TV shows, movies, and many more.

IGT offers instant games that work without any downloads for players who don't like to download games. Games from this developer come with great storylines, amazing graphics, bonus features, etc. Some popular titles from this developer on online slots sites include DaVinci Diamonds and Cleopatra.

Yggdrasil Gaming

This company was only developed in 2013, making it more recent than many others on the list. However, they have been able to make themselves one of the top names within this short period. It has tons of games in its collection, including slot titles like Blood Moon Wilds and Valley of the Gods.

Other software developers that you can enjoy when you sign up on Slot Sites UK are:

  • Play N’ Go
  • ELK Studios
  • Novamatic
  • Aristocrat
  • Blueprint Gaming
  • iSoftBet, etc.

How to Register & Start Betting on Slots

Online slots are very straightforward, and a slot site like Slots Sites UK makes it easy to play. If you are thinking of playing on Slot Sites UK, the steps below can help:

  • Register on the platform. This is the first thing you need to do regardless of the site you choose. You will need to input your phone number, name, and email.
  • A link will be sent to your email, which you will click to verify your email.
  • Input your username and password.
  • Make a 1st deposit of no less than £10, so you can be eligible for the welcome bonus offer (Full Ts & Cs Apply).

After you have registered, you can now begin to play using these steps on our mobile slot site:

  • Hold on until the game loads. After it loads, you should be directed to the bet area.
  • Choose your preferred coin value and paylines. The figure may differ depending on the slot you choose and the amount you are comfortable betting.
  • Once you have determined this, decide your bet level
  • Crosscheck again to ensure everything is as you want.
  • If you are satisfied, hit the spin button and wait to see if you will land a winning combination.
  • The number of symbols you will need, and other important information will be available in the paytable. Make sure you go through it anytime you play a slot game on any slot site.

You may not win the first time, but this is normal when playing slots. Remember to always play responsibly and just for fun!

Deposits & Withdrawals

When you play real money games on a slot site, your goal is to win real money. After you win, the next step is to withdraw your earnings, and slot sites offer you tons of payment methods to help with this. To this end, here are the top payment methods you can find when you play at Slot Sites in the UK:

Debit Cards: These are the most common payment methods you will find on the best online slot sites. They include cards like MasterCard, Visa, Maestro, etc. Deposits with debit cards are instant, but it can take 1-5 days to process withdrawals, depending on the casino.

e-Wallets: These are ideal for people who want to get their money out quickly because deposits are instant, while withdrawals require 24 hours or less. Payment methods in this category include Skrill, Neteller, PayPal, Entropay, etc.

Cryptocurrencies: Cryptocurrencies are still a new payment option, but they are becoming more popular in the UK each day.  Options like Bitcoin are beginning to become more widely accepted in online casinos. They are fast and can help you stay anonymous when you make payments in online casinos.

Bank Transfers: This is the best option for anyone who is about safety. It is one of the safest options of payment and is accepted in almost every slot site. However, it is extremely slow since most online casino platforms require a long time to process payments made with this option.

On our site, you can find the following payment gateways only:

  • Debit Cards
  • PaySafeCard
  • PayPal
  • Pay by Mobile Casino

Best Slot Site Bonuses & Free Spins Promotions in 2023

The best online casinos offer players numerous types of bonuses to ensure they keep playing. Some of the most common ones you can find include:

Welcome bonus

The best online slots sites offer players a welcome bonus immediately after they make their 1st deposit. Slot Sites UK, for instance, offers players a welcome offer of a 100% Match Bonus of up to £200. However, they need to make a 1st deposit of at least £10 (Full Ts & Cs Apply).

Deposit/Match bonus

This is similar to the welcome bonus as players get it after making a deposit on an online casino site. These bonuses tend to come with a wagering requirement before you withdraw. The wagering requirement could be 35x wagering the total amount and could be as high as 50 times depending on the real money site.

Free spins

As the name implies, players get extra spins to play slots on casino sites in the UK. Free spins no deposit eradicates the need for real money and could range from 30 free spins, 50 free spins, to as high as 500 free spins.

Cash bonus

The cash only bonus funds is offered to players in the form of cash to play games of their choosing. Similarly, we provide all players with the opportunity to win a cash bonus through our weekly tournaments on slots and bingo!

Timed bonus

This is a bonus that expired within a specific time frame. For instance, within 72 hours bonus expires within 72 hours of getting them. Bonus funds must be used within the time frame, or they are removed.

Why Should You Play at New Slot Sites UK?

Many online casinos allow you to play online slots today. However, to get the best from slot games, you will have to choose the best slot sites. Failing to do this will leave you with a fraudulent casino that may offer you horrible services and even swindle you. Here are some of the reasons you should play at the best slot sites:

Safety and Security

The best online casino websites are licensed and regulated by the appropriate bodies. These regulatory bodies ensure that you enjoy fairness and safety anytime you play. Slot Sites is properly licensed and regulated by Alderney Gambling Control Commission and UK Gambling Commission. These bodies are the best in the business, and make sure you are always safe and secure.

Mobile Functionality

The best slot sites are easily accessible via mobile devices. This will ensure you can play on the move from any location via your Android or IOS devices. You can choose to install an application or play directly from the mobile browser.

24/7 Customer Support

The best slot sites understand the need for a quick response when you run into a hitch in online casinos. This will ensure you can quickly go back to playing your game. We understand this fact, and that is why we have an efficient customer support team that you can reach out to 24/7.

Tonnes of Payment Options

The best slot sites offer numerous payment options so that you can deposit and withdraw earnings without a hitch. Some common options available on the leading sites include MasterCard, Neteller, PayPal, etc.

Great Bonuses and promotions

Some online casinos offer bonuses that come with shoddy wagering requirements. Ultimately, you realize that you are unable to fulfill the wagering requirements to get the bonus winnings. The best slot sites do things differently, which is why we have a welcome offer a 100% match bonus of up to £200 on your first £10 deposit (Full Ts & Cs Apply).

It comes with reasonable wagering requirements, and you may never find any offer better in the UK. We also offer many more ongoing promotions for existing and loyal players.

Slot Sites UK is a platform that ticks all the boxes above. Register today and start to enjoy your favourite casino games for real money. Nonetheless, it is essential to note that the best online slots are very addictive and can result in gambling problems. To avoid this, please play responsibly.

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

New players only, £10 min fund, £200 max bonus, max bonus conversion equal to lifetime deposits (up to £250), 65x wagering requirements and T&Cs apply.

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