Top Slots

Software: Blueprint Gaming
Reels & Pay lines: 5/20
Slot RTP: 95%
Software: NetEnt
Reels & Pay lines: 5/3125
Slot RTP: 96.96%
Software: Barcrest
Reels & Pay lines: 5/20
Slot RTP: 95%
Software: Random Logic
Reels & Pay lines: 5/5
Slot RTP: 96%
Software: Novomatic
Reels & Pay lines: 5/9
Slot RTP: 95% - 97%
Software: Playtech
Reels & Pay lines: 5/25
Slot RTP: 94.1%
Software: Microgaming
Reels & Pay lines: 3/5
Slot RTP: 91.5%
Software: Novomatic
Reels & Pay lines: 5/20
Slot RTP: 95%
Software: Playtech
Reels & Pay lines: 3/10
Slot RTP: 99%
Software: Barcrest
Reels & Pay lines: /510
Slot RTP: 96% - 99%

The UK online slot scene is now a multi-billion pound market, with consumer choice at an all-time high. As you will have ascertained from the above, there are various options available for the player to consider. Whilst the thrill of jackpot slots appeal to many, others prefer the more basic approach. Moreover, if bonus features are more your thing, then this is also covered.

Nevertheless, if jackpots are your thing, there are now dozens of different slot games that offer the possibility to win prizes in the millions of pounds! Moreover, even if you play the minimum bet size – which often starts at 25p, you have just as much chance of winning the jackpot against somebody that plays higher stakes.

If you are unsure which slot game to try first, we would suggest checking out our guidance on welcome packages and free bet promotions. This allows you to boost your deposit balance in the form of additional credit. This way, you can trial a good proportion of the many games currently being offered by UK online casinos.

Ultimately, if you are looking for the very best slots available at any given time, it is always worth checking our website for the most up-to-date recommendations. Don’t forget, we at Slotbettors are an impartial platform that only suggest the very best. Our stringent review process covers all the important aspects, ensuring that you only gamble funds with the most reliable and credible operators.

To help you throughout your online slot endeavors, we have compiled an informative and up-to-date portal, detailing some of the best slots currently available to play. As a result, there is no longer any need to visit your local pub, betting shop or land-based casino to access a slot machine, Instead, playing a top slots game can be done in the comfort of your own home and even on the go!

How do we determine the best of the best?

Attempting to ascertain the top slots in the online casino industry is no easy feat. There are literally tens of thousands of different games available, each with their own pros and cons. In order to compile a list detailing the very best, we decided that the only way to do this was to actually try the games out ourselves. To further illustrate the criteria we employed as part of the review process, we have broken this down for you below.

Popularity amongst the masses

One of the first things we looked for was what games are causing a buzz in the online slot community? The internet is full of UK based forums, whereby keen gamblers like to discuss an array of topics linked to the online casino industry. This allowed us to first target the most popular games according to those who know best – the players!


We felt that one of the most important aspects to determining whether top slots should make our list was the actual gaming experience. Although some operators claim to have the greatest slot software, we found that certain providers offered games that fell short of our expectations. There is nothing worse than playing a slot game that looks like it was created using a Windows 1995 personal computer!

Therefore, we are big fans of slot games that that use clean and crisp colors, fully supported by innovative, modern and highly interactive graphics. We also gave a small bonus point to the slot games that have bespoke music and sound effects, such as the noise you hear when you’ve won the jackpot! However, if you prefer to play in silence, you can always click that ‘mute’ button!

top slots

Bonus features

When playing online slots, there is no better feeling that seeing the bonus feature activate. This can include multiple free spins, line multipliers and even a separate board where each roll of the dice awards you additional winnings. To make the cut for our top slots list, the game in question must offer a highly entertaining and sought-after bonus feature.


One of the most appealing aspects to online slots is the opportunity to win a life-changing amount of money. Competing casinos often link a selection of their games so that they can pool their resources together, subsequently building a significant jackpot for the player to tackle.

When we engaged in our exploration for the very best slots, we ensured that we included games with the best jackpots on offer.

What are the biggest jackpot slots on the internet, in the history of online gambling?

The UK online casino sector is home to some of the largest jackpot payouts in the world! As of 2018, the largest ever win to date is £ 17,861,800. The lucky UK based player won this on a slot game called Mega Fortune. Once a jackpot is won on Mega Fortune, it averages a new payout every 11 weeks and it is almost certainly in the millions of pounds. This shows just how popular jackpot slots really are.

In second place, the award goes to the Mega Moolah slot game, whereby a UK based player won the grand total of £13,230,200! Just like Mega Fortune, this particular game is also hugely popular, with the average jackpot payout coming out at just over £4.3 million, with an average payout duration of 17 weeks.

Another thing to consider when discussing the largest UK slot jackpots is the maximum amount you can win from free spins that are won as part of a bonus feature. For example, if you were playing Immortal Romance - a popular slot game provided by Microgaming, a stake of £1 a spin could generate a maximum payout of £202,000! Moreover, the biggest 'theoretical' win available to UK slot players is on Gladiator. Playtech supported Gladiator allows a maximum bet size of £1,250 a spin, with a free spin bonus potentially paying up to an uncanny £225 million!

So now that you have a good understanding of the types of jackpots on offer at online slot casinos, we are now going to give you three of the best slot games of 2018, along with a description of their top features.

Epic Monopoly II

In our opinion, the Epic Monopoly II slot game offers one of the most interactive and enjoyable gaming experiences in the online slot industry. Provided by software developer WMS Gaming, the slot offers a maximum of 100 pay-lines, giving the player a consistently good chance of spinning a winning combination.

The visualization is centered on the classic Monopoly board game, with all of the traditional symbols playing a role. The game is jam-packed with bonus features, keeping the player on the edge of their seat at all times.

The Epic Wheel bonus is activated when three of more scattered bonus symbols appear, with the symbols only available across reel 1, 3 and 5. When this comes in, there are various features available. This includes:

  • 7, 10 or 20 free spins
  • 2, 5 or 10 dice rolls on the hallmark Monopoly bonus board
  • 2x multiplier

Another really cool feature is the Wild symbol bonus. During normal gameplay, if you hit a Wild symbol on any reel, the rest of the reel will turn Wild, allowing it to be substituted for any other symbol.

The minimum amount that can be staked per spin is 50p, with the maximum coming out at £50. The pre-defined pay-out ratio is 96.01%, which is hugely competitive.


Mega Fortune

Mega Fortune is one of the most popular jackpot slot games and is provided by software developer NetEnt. The visualization of the game focuses on a life of luxury, with reels covered with champagne, limousines and yachts! Each spin is supported by 25 pay-lines across 5 reels.

At the time of writing, Mega Fortune has an average jackpot win of over £4 million, which is hit approximately every 11 weeks.

The game has various other bonus features for the player to enjoy, such as the wild Yacht symbol, which can be substituted for any other symbol. If you hit three of more Wheel of Luck symbols, it activates the bonus game.

Moreover, if you get three or more Champagne symbols, then you activate the free spins bonus. During the free spins round every time you hit an additional Champagne symbol, your free spins increase in size!

Mega Fortune has one of the highest pay-out ratios at 96.6%, giving the player a great chance of walking away a winner.

The minimum bet size is 1p, meaning that your total bet size across 25 lines is 25p. At the other end, the total maximum bet size is £50.

Mega Fortune is available to play through most web browsers, as well as being compatible with both Android and iOS mobile devices.


Book of Ra Deluxe

The hugely popular Book of Ra Deluxe slot game was originally reserved purely for land based casinos, however it has since transited in to the online sector. Supported by software developer Novomatic, the slot offers a basic, yet highly smooth and clean gaming experience.

The gaming visualizations are based on ancient Egyptian adventures, with the user playing the role of an archeologist. The slot has five reels with a maximum of 10 pay-lines. In terms of symbols, 10, J, Q, K represent basic pay-outs, with larger wins represented by various Egyptian artefacts.

Although the Book of Ra Deluxe is perfect for those who prefer basic game play, there is also a free spins bonus feature. To activate it, simply hit three of more Book of Ra symbols, anywhere across the entire reel screen.

Another interesting feature is that the slot offers the player the chance to gamble a win. Based on a 50/50 chance, you have to predict whether the next card is going to be red or black. If you are correct - your win is doubled, however on the contrary, a wrong decision results in you losing your win in its entirety!

The minimum total bet size is 20p, with the maximum coming out at £50.  In terms of the 50/50 bonus gamble feature, the most that can be staked is £5,000.

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