SlotBossSlotBoss
Welcome Offer
100% Deposit Offer
+ 50 Free Spins

Opt-In Required. New players, single deposit of £10+. Cash & wagering conditions vary. Max reward £150. 7 days to claim + further 7 days to wager 35x. 50 FS 10p each awarded on Big Bass Splash after wagering, 3 day expiry. 18+. Exclusions & T&Cs Apply

Gigantic Jackpots
Over £24 Million
Could be yours

Opt-in required within eligible game. Portion of each stake added to progressive jackpot value. Minimum £0.10 game stake & £0.09 jackpot stake required. Winner is picked at random. Progressive jackpot amounts shared across the LeoVegas network. RTP of 70%. 18+. T&Cs Apply

Popular Games
MEGA

£24,450,137.35

MAJOR

£39,370.49

MINOR

£222.49

MINI

£15.20

Win prize pots on over 800 Games
New Slots & Games
Table Games
MEGAWAYS SLOTS
Jackpot Slots
Live Casino Games
Slingo Games

Why Slot Boss?

Fast withdrawals
Fast withdrawals

Win, click and get your money sent over in a jiffy!

Licensed casino
Licensed casino

Superior player protections and limits guaranteed.

24hr customer service
24hr customer service

Available for you 24/7 and will solve all things 'online casino'. Reach out. Whenever.

play here
visa mastercard paypal ss-payments gambleaware

Play Online Slots On Slot Boss

Here at Slot Boss, we have a wide range of slots and casino games that can be played with the brilliant bonuses available. Our most recent slot machine to be added is the Slingo Casino slots. Slingo combines slots and bingo to create an innovative style of slot machine that is one of the most unique games on Slot Boss. If you’re looking to play Slingo Slots, we recommend checking out Monopoly Slingo and Rainbow Riches Slingo, which are some of our most popular slot games.

We have plenty of slots online available for players covering a range of themes, styles and features, which means that as a UK online slots provider, we have one of the grandest selections of the best slot games and fruit machines. There are plenty of amazing slots online such as 9 Masks of Fire and Deadwood slot to name but two, and even quality wizard slots.

We’re sure you will find something that catches your eye, whether that would be the popular Egyptian theme where Cleopatra slot is our most popular game, or something else like Irish, Fantasy or our retro slots.

You Don't Need To Be An Expert To Play Online Slots

Online slots have become more creative with more immersive bonus features and in-game modifiers, sure, but the mechanics remain the same. All slot machines are built using standard reels that spin and land randomly. As soon as you hit the spin button, the combinations that the reels land on are completely randomly generated.

If you are new to slots online, then you can view our blog content as well as the game information pages on all of our slot games. These are in-depth instruction manuals to give you a better understanding of how to play the slot game you have selected, as well as a description of the bonus games, features and symbols to look out for. Each set of instructions has been written by our casino and slot writers to give you the most valuable information.

What Are Online Slot Machines and How Do They Work?

Online slot machines or online slots are types of real money gambling games with plenty of different themes and features. Firstly you set your stake and then spin the reels to match up symbols on winning paylines to win cash prizes. The reels will stop at random, and if they match on a pay line you could get rewarded with bonus features, free spins, multipliers or other forms of prizes.

At Slot Boss, we are all about slots, which is why we have some of the best slots online in the UK. Our slots include amazing graphics and new bonus features. Each slot game has different features, a wide variety of bets, a different amount of paylines and a range of different multipliers. They are designed to give each player the best slots experience.

What are the Best Online Slots?

There are three slots that have been widely regarded as the best online slots since their release, and what is good about these three slots is that they all have different themes. Our first slot is the Starburst slot game, which brings a traditional gem theme and is widely regarded as the master of the Free Spins bonus round, which our players can read more about in our blog.

Our second slot is the Book of Dead slot which takes a traditional Egyptian slot and improves the graphics, gameplay and bonuses to make Book of Dead our most popular Egyptian-themed slot.

The third and final of our Best Online Slots is the Rainbow Riches slot game, which is arguably the most well-known slot in history thanks to the numerous variations of the original slot available. Rainbow Riches is an Irish slot with high volatility and a number of bonus rounds, but is especially popular because players can play the game in multiple different ways thanks to the many Barcrest variants such as Rainbow Riches Free Spins.

The quality online slots titles don't stop there because we also have movie-themed games like The Goonies slot, TV show adaptations like Deal or No Deal Megaways, and more.

These are some of the most popular UK slot games, but that’s not all that we have to offer.

What Are The Best Online Slots Features?

We also have a special type of game, which is the Dream Catcher engine. This was originally used for the fantastic Live Dream Catcher game but became a lot more popular when incorporated with the brilliant Monopoly Live.

Finally, another one of our favourite styles is the Megaways mechanic. The Megaways mechanic has revolutionized the casino industry after being created by Big Time Gaming, releasing some of the most popular games in recent years with the brilliant Bonanza Megaways slot. Working with the best slots online, we can also bring you the famed Wish Upon A Jackpot sequel Wish Upon A Jackpot Megaways as well as the Gonzo's Quest special edition Gonzo's Quest Megaways.

Want to learn more about Megaways slots? Be sure to check out our blog for all the need-to-know information about the mechanics and detailed reviews about titles like Rainbow Riches Megaways.

Everything You Need To Know About Slots Online

Online slots are an innovative and modern-day answer to traditional slot machines and fruit machines. Originally made famous in Las Vegas and other land-based casinos, this popularity has now been moved online. The main differences between the classic style slots and the online slot machines are the bonus features, in-game modifiers and the reel engines. For example, these days slot games are usually played across 5 reels with a lot more win lines. You'll also see more scatters, wild symbols, bonus symbols and central characters.

We’ve seen a number of fantastic slot games released on Slot Boss, including another brilliant Rainbow Riches rendition in Rainbow Riches Cluster Magic, which has a plethora of fantastic features that completely change the complexion of Rainbow Riches and turns the game into a modern-day classic.

How To Play Online Slots

Online slots gameplay is similar to the physical fruit machines. You choose the amount to play with, how much you'd like to stake and watch as reels spin with the aim of matching the most lucrative symbols. The main difference to traditional fruit machines are the huge number of paylines, bonus features and ways to win. They're becoming more akin to video games.

However, here are a few steps to take when you're thinking about playing one of our slot games. You firstly want to settle on an amount of money you wish to play with and then set each spin. Firstly you must deposit your funds and then choose a slot game you wish to play. Then hit play to spin the reels and watch the game complete a spin. The reels will eventually stop in a random combination. You're aiming to create a matching combination, however, in the latest slot games there are many different ways this can happen with excessive amounts of paylines. Sounds good, right?

Safer Gaming

Here at Slot Boss, we believe in safety first, so you can set deposit limits in accordance with our Safer Gambling Policy. At Slot Boss, we are passionate about bringing our customers a safe and enjoyable user experience right through from your first deposit to your withdrawal. As part of our safer Gambling measures, it is vital that we help you manage your gambling to ensure Slot Boss remains a safe environment. 18+ begambleaware.org.

Welcome Offer

Learn more about our welcome offer by clicking the link here at Slot Boss.

FAQS

What are paylines?

Paylines are the ways in which you can win. The aim is to match winning symbols across paylines. In old fashion slot machines that's often horizontal and sometimes diagonal. In modern online slot machines there reel sizes are increased. That means there can be thousands of paylines that provide ways of winning. Notably, megaways slots have 117, 649 different ways to win.

Depositing has never been easier. We offer multiple ways in which you can deposit such as Visa, Visa Debit, Visa Electron and Mastercard with no fees attached. Slot Boss is also one of the casinos that accept PayPal which is ideal for online payment. If you're new to Slot Boss make sure to take advantage of our welcome offers.

We're sorry!

Unfortunately, SlotBoss isn't available in your country.