Slots rank as the most popular type of game among casino enthusiasts worldwide, and players from the UK are no exception. The slots offered by online casinos impress with immersive sound effects, crisp graphics, realistic animations and a myriad of special features, not to mention that some titles give players the opportunity to pocket a life-changing progressive jackpot that increases by the minute. Some progressive prizes often escalate to seven-figure sums, as they are linked to wide-area jackpot networks in which thousands of players contribute to the pools.
If you are a UK player interested in testing your luck at progressive jackpot slots, the following article may be of interest, as it contains detailed information on how to choose a reliable UK-friendly casino and which progressive jackpot slots are the most lucrative.
Choosing UK Casinos to Play Jackpot Slots at
There are literally hundreds of casinos available online, but the question many UK players are probably asking is how to choose an online gambling provider they can trust. There are several key criteria to look for prior to opening an account at any online casino.
First and foremost, UK players are recommended to make sure their preferred online casino welcomes customers from their country. The good news is all of the online casinos we have reviewed welcome players from the United Kingdom.
Before you complete your registration, it is advisable to first check which regulatory bodies have issued the licences of your casino of choice. This information is typically displayed at the bottom of the casino’s homepage, so if you see the UK Gambling Commission listed there, this would mean the gambling operator is legitimate. Other stringent and well-respected regulatory authorities to look for include the Gibraltar Gambling Commission, the Malta Gaming Authority and the Alderney Gambling Control Commission, among others.
It is always a good idea to check which methods of payment the online casino accepts and whether or not they are suitable for UK players. Some of the most widespread payment solutions, recommended for UK players, include Visa, MasterCard, PaySafeCard, Neteller, Skrill and PayPal. Checking whether or not your preferred casino processes payments in GBP is a must, as using your own currency will help you avoid currency conversion fees. When it comes to withdrawals, it is always a good idea to opt for an online gambling operator that is well known for its quick and hassle-free cash-outs.
It is always worth checking which software developers the gambling operator has partnered with. Reputable online casinos typically team up with some of the leading names in the industry to ensure their players enjoy a seamless, high-quality gaming experience without any issues or glitches. Some of the most respected software suppliers to look for include giants like Microgaming, Playtech, NetEnt, Betsoft and IGT.
Sometimes players may face issues when managing their accounts or may simply require more information on certain matters. That is why it is best to register an account at an online casino that respects its customers, caters to their needs, and offers them adequate and time-efficient customer support via a dedicated live chat facility. All reputable operators in the industry typically have friendly support agents on standby around the clock to answer players’ questions or help them resolve any ensuing issues.
The last two criteria that define established UK casinos are mobile compatibility and the bonuses on offer. Typically, renowned casino operators reward both new and existing players with various promotional offers and free spins. And the best part of all is that you get to keep the winnings you have accrued with the bonus funds.
Finally, if you insist on being able to play on the go, make sure you check that you are opening an account at an online casino that is mobile-responsive. This way, you will be able to load the games directly on your portable device’s browser. Some established casino operators offer dedicated iOS and Android applications that are available for free download, so installing these apps is yet another convenient option.
Popular Progressive Jackpot Slots at UK Online Casinos
As the number of progressive slot titles is indeed imposing, we have sifted out twenty of the most popular progressive slots to look for at renowned online UK casinos. The progressive prizes on these games are known to reach mammoth heights, so make sure you check them out.
UK Casino Jackpot Slots
Choosing Online Slots
How to Play Winning Slots
Progressive Slots
The Most Popular UK Slots
Jackpot Giant
Jackpot Giant comes courtesy of respected software developer Playtech, and it is fair to say this truly shows, judging by the impressive visuals, fantastic animations and vibrant sounds. What the slot has to offer are 50 paylines, spread across five reels. Slot fans will also benefit from stacked wild symbols and scatters, not to mention the bonus “pick-me”-styled game where players are guaranteed to scoop additional cash prizes.
The slot’s name is anything but misleading, as the game has a colossal progressive jackpot attached to it. However, to qualify for the huge prize, players are required to bet the maximum amount allowed, which is £4 per spin on all available paylines. The prize is awarded to those who succeed in landing five wild symbols on payline number 1. The game can be found at well-known casinos such as William Hill, BGO and EuroGrand.

Mega Moolah
Microgaming’s Mega Moolah is frequently referred to as the “millionaire maker”, and there is good reason why. The slot carries mind-blowing winning potential and has rewarded slot fans with tens of millions in winnings many times. There are several variations of the game that contribute to the accumulation of the pools, as the titles are all linked to Microgaming’s progressive jackpot network. These include the original Mega Moolah, Mega Moolah Isis, Mega Moolah 5-Reel Drive and Mega Moolah Summertime.
The African-themed variation of the slot enjoys the greatest popularity among players. It features five reels and a total of 25 adjustable paylines. Those who opt for Mega Moolah can expect rounds of 15 free spins with 3x multipliers, useful wild and scatter symbols, and profits of 250,000 coins in the base game. However, what all players are hoping for is to collect one of the four progressive jackpots. The Mega jackpot is the biggest, as it seeds at the staggering amount of €1 million. The wheel game that awards one of the four jackpots is triggered at random, but players are advised to place the highest bet to increase their odds of winning.

The Incredible Hulk
Playtech’s The Incredible Hulk is part of the developer’s Marvel Mystery Jackpot series, where several Marvel-branded titles contribute to the accumulation of the jackpot pools. The game, which in itself is a masterpiece, was inspired by the popular superhero film from 2008. You can expect fantastic animations, footage from the actual film, and a nice range of special features, including the Smash Bonus game and up to 10 free spins.
The slot employs five reels and offers 25 adjustable paylines. Please note that all slots from the Marvel series are linked to four different progressive prizes, namely the Power, Extra Power, Super Power and Ultimate Power jackpots. These are triggered at random and all players can qualify, regardless of their bet size. However, betting the maximum amount per spin will significantly increase your chances.

Funky Fruits
Funky Fruits is yet another progressive Playtech offering, suitable for fans of old-school fruit machines. However, unlike most classic slots, the game has amazing graphics to offer and features a 5×5 reel grid. Some of the symbols Playtech has used include melons, pineapples, oranges and lemons. In order to win, players are required to land five identical fruits that are adjacent to one another.
The Funky Fruits progressive jackpot seeds at £100,000, and if you want to win the whole amount, you are strongly advised to place the maximum bet allowed per spin. Smaller wagers of £1.00, £2.00 or £5.00 will earn you 10%, 20% or 50% of the prize, respectively, provided that you land at least eight adjacent cherry symbols on the reels.

Monty Python’s Spamalot
Developed by the well-known software supplier Playtech, Monty Python’s Spamalot already has plenty to recommend it. Players can expect five reels, 20 adjustable paylines, rounds of 10 free spins and four different bonus games.
Apart from the fun animations and visuals, the game offers two progressive jackpots – the Holy Grail and the Slightly Less Holy Grail prizes. In order to win the Holy Grail jackpot, players are required to first collect five jackpot game symbols during the rounds of free spins. This will unlock a six-tier jackpot game where you need to reach the sixth level in order to be awarded one of the two jackpots.

Beach Life
Beach Life is a name all enthusiastic slot fans are well acquainted with. This five-reel slot with 20 paylines, courtesy of Playtech, successfully recreates a festive and vibrant summer atmosphere thanks to the colourful and rich graphics the leading developer has incorporated into the game. The latter has plenty of advantages to offer, including wild and scatter symbols, a bonus game and, of course, a huge progressive prize that often reaches a seven-figure sum.
The question all players ask themselves is how to collect the massive prize. Well, in order to do that, one is required to land five sun wild symbols on the 20th payline. Those who line up the wilds on any of the other nineteen paylines will be awarded the consolation prize of 100,000 coins.

Thor: The Mighty Avenger
Thor: The Mighty Avenger is yet another Playtech slot from the Marvel Mystery Jackpot series. As you can imagine, this five-reel game, with its 30 paylines, is superb in terms of visuals and animations, not to mention it has plenty of cool features to offer, including re-spins, bonus games, rounds of free spins, wild and scatter symbols.
Similarly to other titles in the series, Thor is also linked to four different progressive prizes, the Mega jackpot being the prize all slot fans covet. Generally, it is possible to trigger the jackpot with any spin, of any amount, but if you wish to boost your chances of doing so, you should definitely bet a higher amount per spin.

Major Millions
Microgaming is the name behind the Major Millions progressive slot with a fun military theme. It comes in two variations – a classic three-reel slot and another title, which features five reels and 15 paylines. Whichever of the two you decide to play, you are guaranteed a seamless and hassle-free gaming session thanks to the great graphics and intuitive gameplay.
If the progressive jackpot is what you are after, and you most probably are, the giant prize will be awarded to you as long as you line up five symbols with the Major Millions logo on payline number 15. As is usually the case, you are advised to bet the maximum amount, which is £3.00.

Age of the Gods
Inspired by Ancient Greek mythology, Playtech’s Age of the Gods slots are linked to the same progressive jackpot pool and all titles contribute to the accumulation of the gargantuan prize. It does not matter which title you choose, as King of Olympus, Fate Sisters, Prince of Olympus, Goddess of Wisdom and Furious 4 all carry massive winning potential and boast an impressive number of lucrative special features. Each game comes with state-of-the-art visuals and is dedicated to different Greek gods or goddesses.
The number of paylines varies between 20 and 25, depending on which game you opt for. There are four different progressive jackpots that are randomly triggered, but which one players win depends entirely on their luck.

Gladiator
The Gladiator slot is yet another masterpiece we have Playtech to thank for. The game is played on five reels and offers 25 adjustable paylines. Needless to say, the game is based on the iconic 2000 film, so players will see some of their favourite characters come to life as symbols on the reels.
Apart from its immense visual appeal, the Gladiator slot has plenty of fantastic features to offer. These include the Coliseum scatter symbol that unlocks the bonus game, free spins, and a Gamble feature that allows you to double your winnings. The progressive jackpot is won by players who pick nine gold helmets in the jackpot bonus game.

X-Men
X-Men is yet another slot title from Playtech’s Marvel-branded series. Players have two versions to choose from – with 25 or 50 paylines. The game offers some of the highest-quality graphics and animations one can hope to see in an online slot, not to mention it comes with a number of perks. We assure you the Heroes vs. Villains free spins and the X-Feature with 5x multipliers on winnings are definitely worthwhile.
There are four progressive jackpots that are won at random, as practically any spin can trigger the bonus jackpot game. Once this game is unlocked, players are guaranteed to win one of the four prizes, but which one they collect is based purely on their luck.

Arabian Nights
Slot fans have leading software developer NetEnt to thank for the first-rate progressive slot that is Arabian Nights. This enticing game will transport players to an exotic Arabian world, full of hidden treasures. The slot offers 10 adjustable paylines that are spread across its five reels. Some players complain that Arabian Nights lacks features, but this is not entirely justified, as there are scatter symbols capable of unlocking up to 15 free spins, as well as a wild symbol that can land you either the huge progressive prize or a consolation prize of up to 10,000 coins.

Mega Fortune
Mega Fortune is among the most popular slots in the gaming collection of software supplier NetEnt, which is hardly surprising because the game offers one of the largest progressive jackpots you can possibly win online. The Mega Fortune slot utilises five reels with a total of 25 paylines. Some of the special features include free spins with up to 5x multipliers on all wins, wild and scatter symbols.
Mega Fortune offers one giant pooled jackpot that can potentially reach £4 million, as well as two smaller, local jackpots. Players are required to line up three bonus wheel symbols in order to unlock the bonus game that will reward them with one of the three progressive prizes.

Hall of Gods
NetEnt’s Hall of Gods progressive slot was inspired by Norse mythology and features various Nordic gods and goddesses as symbols on its five reels. These include Idun, Thor, Odin, Freya and Loki, who are the highest-paying symbols in the game. There are 20 fixed paylines. Throughout their gaming session, players will encounter the Midgard serpent, which is an expanding wild, and Odin’s ravens, which serve as the scatter symbol and can trigger up to 25 free spins.
Hall of Gods is in high demand among players as it offers three different progressive prizes, namely the Mini, Midi and Mega jackpots. In order to collect one of those, players are expected to activate the bonus game by lining up three hammer symbols on the reels.

Cat in Vegas
Playtech introduces players to the likeable feline character, Felix, in this five-reel slot, which offers 20 paylines, three different scatter symbols, rounds of free spins, and a mini game. The graphics and animations are indeed very sleek. The game begins with an engaging intro that features the eponymous cat preparing for a tour of Sin City.
Yet, most players are attracted to this slot because of its colossal progressive prize. Everyone has an equal chance of collecting the huge jackpot, as there are no minimum wagering requirements in the game. You can bag the prize even if you do not play the maximum bet amount per spin.

Mega Glam Life
The progressive Mega Glam Life is courtesy of English software developer Betsoft and features a total of 20 adjustable paylines across five reels. Boasting a luxury theme inspired by the lifestyle of the wealthy, this slot aims to prepare players for what is to come should they collect one of the three progressive prizes – the Big, the Huge and the Mega jackpots.
The scatter symbols can reward you with up to 16 free spins, while the wild triggers a re-spin each time it helps you complete a winning combination. Players who simultaneously land three bonus symbols on the second, third and fourth reels get to spin the Money Wheel for the chance to win various cash prizes or one of the three jackpots.

Cleopatra
Cleopatra is among the most sought-after titles in the portfolio of software developer IGT, as it provides players with the opportunity to potentially walk away with a life-changing progressive jackpot. The game is played on the standard five reels and has 20 adjustable paylines. This vibrant and colourful slot was inspired by the iconic Egyptian queen and has become an all-time classic.
The game allows for re-triggering of free spins, not to mention players can potentially win up to 180 of those. The jackpot can be triggered even during the free rounds, provided the spin results in five Mega Jackpots symbols positioned on the centre payline. IGT boasts that a single spin can change players’ lives. Fair enough, but remember you are required to bet the maximum amount per spin to become eligible for the said life-changing prize.

Gold Rally
Slot fans have industry leader Playtech to thank for the launch of Gold Rally. This slot is more suitable for fans of traditional reels, as it is a bit more simplified in comparison with other titles in Playtech’s collection. The game was originally available in a three-reel format, yet Playtech decided to revamp it in 2012 and the result was a brand-new Gold Rally slot with enhanced visuals, 8 paylines and a huge progressive jackpot.
Gold Rally is not entirely lacking in features, as it offers a “pick-me”-styled mini game that can further increase players’ profitability. However, it is the progressive jackpot all players are after, as it often escalates to reach a life-changing amount. The jackpot is awarded to the player who manages to cover the entire reel grid with scatter symbols. What is more, you can win as you go, since Gold Rally has been adapted for mobile play on Android and iOS-based devices.

Treasure Nile
Microgaming’s Treasure Nile is a five-reel slot with nine adjustable paylines and was obviously inspired by Ancient Egypt. The visuals appear to be a bit outdated, but this is something we all can live with, considering the game comes with a hefty progressive jackpot. Microgaming launched the slot in 2004, yet it continues to attract players to this day, as it offers wild and scatter symbols that can further boost their profits.
In order to land the progressive prize, players are required to line up five symbols with King Tut’s golden mask on payline number 9. Please note that you are not allowed to complete this particular combination with the help of wild symbols. Also, in order to qualify for the jackpot, you need to play the maximum bet amount of 4.50 credits. Otherwise, the five King Tut symbols will earn you only 6,000 coins.

Isle O’Plenty
The Isle O’Plenty slot is linked to the Mega Jackpots network of software developer IGT, so the progressive prize attached to it often escalates to reach half a million credits or more. This vibrant game takes players on a magical journey across five reels with 40 fixed paylines. Spinning the reels is accompanied by Irish music playing in the background.
As the name suggests, the slot has plenty of attractions to offer. These include a maximum of 240 free spins, a wild symbol that can spread to the reels below and, of course, the huge jackpot all slot fans are hoping to win. The progressive jackpot is awarded to the player who manages to land four symbols with the Mega Jackpots logo on the third reel in the base game or during a round of free spins.
