Popular Online Slots: Play Your Favourite Slot Games at Slot Boss

At Slot Boss we love bringing you the latest and greatest from the world of online slots and we’re always adding brand new online slots to our collection. Whatever you fancy playing, we’ve got everything from top progressive jackpot slots to UK live casino games.

Quality: How Do We Decide Which Online Slots to Offer?

We do the legwork so you don’t have to. Our team of casino experts select our range of UK online slots through a careful selection process that looks at the RTP, variance, theme, bonus mechanics, jackpots and mobile compatibility.

From Classic Slot Machines to the Latest Online Slots

From retro classic slot machines to the modern masterpieces, Egyptian slots to Irish-themed slots, there’s something for everyone at Slot Boss. Our team of experts are always on the lookout for up and coming games as well as making sure our huge range of casino slots features all of your favourites.

So whether you’re looking for the best Megaways slots, or even a few games of Slingo, the hit bingo and slots crossover, then you’ve come to the right place.

Why Play Slot Games at Slot Boss?

When it comes to playing slot games online, there’s no better place to play your favourites than Slot Boss. With our massive selection of fan favourites like Fruit Party, Deal or No Deal Megaways and Genie Jackpots Wishmaker as well as unique exclusives carefully selected by the Slot Boss casino experts, you’re sure to find something that takes your fancy.

Got a prefered slots theme? No problem - we’ve got you covered with everything from Viking-themed slots to Monopoly slots and everything in between. All of our slots are mobile-friendly, giving you the choice of where and when you play.

We understand that it’s our players that make Slot Boss great. That’s why we love offering our players bonuses and promotions, from free spins to bonus funds - keep an eye out for these in your ‘My Promotions’ page.

Our Customer Service team is available to you 24/7 all year round, so if you ever encounter any issues while playing at Slot Boss, simply head to our Live Chat page, where our team will be more than happy to help.

Online Slot Promotions

Check out our range of offers on our casino bonuses page.

That’s not all!! Earn up to £150 cash and 50 wager-free spins when you make your first deposit within your first 7 days. Simply opt-in for the offer from your My Promotions page, make your deposit and wager this amount 35x for a matched cash reward and 50 free spins. Use your free spins on the popular player-favourite Book of Dead.

FREE Online Demo Play

Found a slot you like the look of? Take it for a test spin with our Demo Play mode available on many slots at Slot Boss. All you need to do is register with Slot Boss and head to the slot you’d like to try. From there, you’ll have the option to play for real money, or alternatively, you can select Demo Play.

Play Online Slots on Your Mobile

We put the power of choice in your hands. You decide where and when you want to play. All of our games are available to play on desktop, tablet or mobile devices. Check out our mobile casino app. Alternatively, play through your browser by head to our website.

Online Slots FAQ

How To Win Playing Slot Games Online

Wins in online slot machines come in various ways. Matching symbols along paylines is possibly the most simplistic method, but there are a range of new mechanics, including clusters, Megaways, and bonus rounds that can prove valuable as well if you win!

Popular Bonus Features Include:

Free Spins - Rainbow Riches Free Spins, Deadwood or Wolf Gold

Cluster Pays: Reactoonz, Reactoonz 2 and Jammin’ Jars

Re-Spin: - Temple Tumble Megaways, Iron Bank and Aztec Bonanza

Bonus Games: - Safari Gold Megways, The Goonies Jackpot King and Money Train 2.

If you’re ever in doubt about a game’s features, you can always navigate to the game’s menu to find out more information regarding symbol values, paylines or bonus features.

Are slot games REALLY random?

Unlike table games such as poker and blackjack, there’s very little inherent skill involved in playing online slots. Game providers utilise a system called a ‘Random Number Generator’ on every single spin to determine which symbols are displayed. The use of RNG ensures that each player has the same chance to either win or lose on every spin.

What is RTP?

RTP stands for ‘Return to Player’. This is a universal metric across the slots industry and gives a mathematical indication of how much return a player can expect from a prolonged period of play.

Whilst a game may advertise its RTP as 96%, indicating that if a player played £100 worth of spins they should expect around £96 in returns; it’s important to understand that RTP is calculated as an average across a large number of simulated spins and it’s entirely possible for an individual player across a play session to both return more than 96% or much less.

If you are unsure about a game’s RTP, the value is often displayed within the game’s menu.

Is there any way to increase your chances of winning on slot games?

A question that often occurs from players is ‘how can I increase my chances of winning on slot games?’. In short, there are no ways to affect the outcomes of your play. The Random Number Generator discussed above ensures that gameplay is completely random and is not open to manipulation from players.

However, despite this, there are a number of tips that can be employed to help make your play session last longer. The first and most basic is to always play at an appropriate stake limit to your budget. Slots offer a choice of how much you wish to stake per single spin, ranging from £0.20 or less up to £20 and occasionally higher. Whilst larger spin values can naturally result in larger wins, this can deplete your cash balance quickly. Many bonus features have a low probability of triggering, therefore playing at a smaller stake amount, whilst not guaranteed to trigger a bonus feature, will allow more spins and in turn increase the probability of triggering the feature, albeit at a lower payout.

How do I know which is the best slot to play?

There are lots of different factors to consider and questions to ask yourself when choosing which slot to play. First, how important is the theme or genre to you? The theme is made up of the aesthetics, sounds and even symbols present within the game. For example, if you fancy an Irish-themed slot, you may wish to check out Rainbow Riches, or alternatively, if you’re in the mood for an Egyptian-themed slot, you may be inclined to check out Eye of Horus.

If it’s mechanics you’re after, then look no further. We have everything from Slingo Rainbow Riches and Fishin’ Frenzy Jackpot King to Reel King Megaways and Bonanza. Take a look at our casino games page to find out more.

Alternatively, you may wish to make your choice based on the max payout or multiplier. Each game has a unique maximum payout or multiplier, which can be found within the game’s menu. If you’re looking for big payout slots then you might consider Return of Kong Megaways or Who Wants to Be a Millionaire Megaways

Don’t forget you can always test run a game by playing the demo mode to see if it’s up your street before wagering real cash.

Are there any online slots that are good for newbies?

New to slots? There are plenty of games which might appeal to you as you’re learning the ropes. Immortal Romance is a fan-favourite on account of its simplistic yet engaging gameplay. There’s very little in the way of bonus mechanics and the straightforward symbols and paylines make it a top choice for new players.

For those new to the world of online slots but familiar with traditional pub fruit machines, there are a host of pub fruits which have migrated from the pub to the internet! Games like 7’s on Fire provide a familiar gameplay experience for players who enjoy traditional fruit machines.

Can I play online slots for free at Slot Boss?

You can play online slots for free by selecting the Demo Mode of eligible slots at Slot Boss. There may also be the opportunity to take advantage of the current Casino Bonuses.

What are the best slots to play online?

With such a huge range of slots available to play at Slot Boss, selecting one to play can be a difficult choice - luckily, our team of casino experts are on hand to help you!

If you’re looking for a real casino classic with a modern graphical appeal and a fantastic range of bonus features, you should look no further than Red Tiger’s Piggy Riches Megaways. Offering the chance to bag some huge wins alongside the timeless theme of NetEnt’s original Piggy Riches, this casino slot has proven a real hit with our players.

If you’re looking for something a little more lighthearted and cuddly, you may want to check out Fluffy Favourites. Featuring the lowest minimum stake size at 1p per spin as well as the potential to bag a nice 100x return in the Toy Box bonus feature, Fluffy Favourites has become a fan-favourite for good reason.

On the spookier side of the spectrum, Book of Dead is a mainstay of most brick and mortar casinos as well as their online counterparts. New players at Slot Boss can unlock up to 10 Free Spins on Book of Dead. With its engaging range of features and reputation as a cult casino classic, it was a no brainer when deciding which game to offer our new players free spins on.

Which online slots payout the most?

If you’re wondering which slots offer the highest payouts, there’s a couple of things to consider. If you’re looking for huge progressive jackpot slots, Jackpot King slots offer players the chance to trigger the Jackpot King Wheel on any spin of any value. These jackpots range from the thousands of pounds right up to the millions - could you become a slots millionaire off a single spin?

The other way to potentially bag a huge win is by playing a large multiplier. Games such as Starburst feature a maximum multiplier of up to a massive 50,000x your stake, while the ever-popular Monopoly Megaways, through its bonus feature, offers players the chance to win up to 14,700x their stake to a maximum value of £250,000!

What are paylines?

A payline, in its simplest terms, can be described as a ‘winning line’. The value of the win can depend on the symbols present or even the order they appear on the reels. The first physical slot machines featured three rows with a single reel and offered a single payline, which simply required players to match three symbols on that row, with the payout determined by which symbols were matched.

Slots have evolved massively since this time, adding further complexity to the humble single payline slots of the past. The extra reels found on many of today’s slots have increased the number of available paylines; where in the past, matching three symbols in a single row returned the player a win, nowadays it’s common to have paylines in a variety of shapes such as diagonal, triangular or diamond,

You can always view a game’s menu to find out information about its paylines and symbol values.

Other games

If you fancy something a bit different from online slots, you can also play a range of classic casino table games like Blackjack, Poker or Roulette. For those of you seeking live play, try Lightning Roulette, Crazy Time or Monopoly Live

**100% Deposit Offer up to £150 and 50 Free Spins on Book of Dead **

Full T&Cs apply. New player only. 7 days to claim offer and deposit a min of £10 with a further 7 days to wager 35x. Cash stakes only and wagering contributions vary. Max reward £150. 50 wager-free spins 0.10p each on Book of Dead awarded after wagering complete, winnings paid as cash. 3 day expiry.

Full Terms and Conditions