Jackpot Slots

You can play on some of our top slots and the Jackpot will just keep rising until a player lands the correct symbols to trigger the jackpot. If you prefer our other online casino offerings you can browse through our casino games for a range of different slots with many different features.

In order to win the Jackpot King Progressive Jackpot, you'll need to enter the Jackpot King Bonus Round. Find 5 Golden Crowns on the reels after any spin, and the Bonus Round will begin. You'll then be shown the Super Reels, where you'll have to find even more Golden Crowns. The more Golden Crowns you find, the higher up the Cash Trail you will go, taking you closer to the Wheel King Bonus. Along the way, you'll also find pieces of the Kings Treasure, which will give you cash prizes, or even Free Spins. When you reach the top of the Cash Trail, you'll begin the Wheel King Bonus. Here, you will spin the Wheel to win up to a 1000x multiplier, or who knows, you might even win the Jackpot itself!

But how does the Jackpot King increase? 0.13% of each stake is added to a reserve pot. When the Jackpot King is won, it will reset to the reserve pot value. The Jackpot begins with a seed fund initially. Then, 0.86% of each stake placed is then added to the progressive pot. Then remaining 0.13% is added to the reserve pot.

Of course you could win the whole Jackpot King but 21.co.uk has also introduced 2 more jackpots for the ultimate winning opportunity. Our Royal and Regal jackpots give you more chances to play for those big wins.

Romeo and Juliet Jackpot King Slot at 21Romeo and Juliet

See if you can find love with 2 of the most recognisable names around; Romeo and Juliet. Keep your eyes peeled for the Jackpot King symbols and if you land one on every reel then you have the chance to win the Jackpot. The Romeo & Juliet jackpot slot gives you many reasons to fall in love with the game. Play now and find out for yourself!

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Top Cat Jackpot King Slot at 21Top Cat

Top Cat is the first of our slots that gives you the chance to win the Jackpot King Progressive. Visit Top Cat and the gang to play along with 5 huge Bonus Rounds, and there's a chance to trigger the Jackpot King Bonus on any spin! Don't worry if you don't get the Jackpot, there's plenty of other chances to win big in this slot.

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Diamond Jackpots King Slot at 21Diamond Jackpots

James Bond is an icon and a symbol of the modern British man, and we all know about his taste for classic suits and especially diamonds. The Diamond Jackpots online slot gives you the chance to win its Jackpot King Promotional Pot. Once you unlock the Wheel King feature you will take either The Big Total Bet Multiplier or the Jackpot King Promotional. Shake things up and have a go at claiming the top prize.

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The Pig Wizard Jackpot King Slot at 21Pig Wizard

If you love magic, then see if the Pig Wizard can grant all your Jackpot wishes. To win the Jackpot King, The only way you can win the Jackpot King promotional pot is during the wheel king bonus feature. You can enter the wheel king feature by accumulating 15 crown symbols whilst spinning the reels in the jackpot king bonus.

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Naked Gun Jackpot King Slot at 21The Naked Gun

The Naked Gun is a slot that is full of bonus features and roaming wilds, as well as a chance to take home a jackpot. This online slot game has clips from the classic movie, along with enough features to make sure a win is never far away. To win the Jackpot King, you'll need to find 5 Jackpot symbols on the reels, giving you access to a unique bonus round. Keep on spinning for your chance to spin the Wheel King and take home a jackpot.

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Deal or No Deal: What's in Your Box? Jackpot King slot at 21Deal or No Deal: What's in Your Box?

Our Jackpot King slots are always popular amongst our players, so we expect the Deal or No Deal slot to be no different. Face off against the Banker and play in the Deal or No Deal studio in the slot based off the classic TV show. Enter the Jackpot King Bonus by finding special overlay symbols on the reels. Take a spin on the Wheel King Bonus and you could be taking home a jackpot.

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Worms Reloaded Jackpot King Slot at Pink CasinoWorms Reloaded

Worms Reloaded has arrived at 21.co.uk and gives you another chance at winning the Jackpot King Progressive! Look out for Bonus symbols and the exploding Worms Grenade for your chance at triggering 1 of 8 unique bounses. To try and win the Jackpot, look out for 5 Golden Crowns landing on the reels. Then spin the Gold Reels, reach the Wheel King Bonus and you could be spinning for the Jackpot King!

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Star Spinner Jackpot King Slot at 21Star Spinner

Never underestimate the power of a classic arcade-style slot. Star Spinner online slot is a jackpot slot with the potential to trigger the most lucrative of prizes - the Jackpot King Progressive. Any spin could produce Golden Crown symbols, find as many as you can to progress through the Cash Trail. What lies at the end of the trail? The ticket to a staggering sum of money - the Wheel King Bonus. Play Star Spinner online slot for the chance to snap up the Jackpot King!

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Super Spinner Bar X Jackpot King Slot at 21Super Spinner Bar X

Super Spinner Bar-X is the next slot that offers the amazing Jackpot King Progressive Jackpot. The slot is based on a traditional slot machine, and is full of classic casino symbols. When 5 Golden Crown symbols land on the reels, the Jackpot King Bonus Round will begin. The Jackpot King can be won on any round, so come and give this slot a spin now!

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Slots O' Gold Jackpot King Slot at 21Slots O' Gold

If Top Cat isn't for you, then maybe the traditional Irish themed Slots O' Gold will win you over. Packed full with leprechauns and four leaf clovers, you're sure to fall in love with this slot. Just like Top Cat, there is a chance to trigger the Jackpot King on any spin.

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Angel Princess Jackpot King Slot at 21Angel Princess

You could be feeling like you’re on cloud nine in the Angel Princess slot game. Angel Princess is our latest slot game that joins the Jackpot King games and offers you the chance to win big. With a thrilling Free Spins feature and the new Jackpot King bonus features, you could be flying off the reels with a big win.

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Paws of Fury Jackpot King Slot at 21Paws of Fury

Our range of Jackpot King Slot games are getting bigger and better and don't we have a treat for you. We present to you Paws of Fury slot that's action packed and thrilling with bonus features such as the juicy Jackpot King feature. Receive 5 Golden Crowns anywhere on the reels to be awarded with the Jackpot King Bonus. See if the fantastic panda can kick-start them reels and reward you with the Jackpot King Bonus feature.

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Vikings of Fortune Jackpot King Slot at 21Vikings of Fortune

Helmets at the ready and prepare for action as we bring you another Jackpot King slot game, Vikings of Fortune. With fantastic Free Spins and a juicy jackpot Vikings of Fortune Slot is packed full of action to provide you with the thrill you deserve. Receive 5 Golden Crowns anywhere on the reels to be awarded with the Jackpot King Bonus.

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Count Duckula Jackpot King Slot at 21Count Duckula

Trick or Treat? Well we have a treat for you. Introducing the Ducktacular slot game, Count Duckula that is now joining the Jackpot King team. Receive 5 Golden Crowns anywhere on the reels to be in with a chance of entering the Jackpot king rounds.

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Blueprint Progressive

Aswell as the Jackpot King Progressive, there is also a chance to win the Blueprint Progressive Jackpot. More slots offer the chance to win this jackpot, meaning that the Jackpot will rise even faster.

Just like the Jackpot King Progressive, this Jackpot will start at £10,000 and will increase each time anyone spins the reels. Each game offers a different way to win the Jackpot, so make sure to give each game a try to see which one you fancy to give you the best chance.

Genie Jackpots Blueprint Progressive Jackpot Slot at 21Genie Jackpots

The first slot that offers the Blueprint Progressive Jackpot is Genie Jackpots. In this slot, you'll have to find the Progressive Jackpot symbol in any of the 3 Power Spins that can be won in the game. Find just one of these symbols to win one of the biggest Jackpots that slots can offer.

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Super Diamond Deluxe Blueprint Progressive Jackpot Slot at 21Super Diamond Deluxe

Maybe Genie Jackpots isn't for you. Don't worry, Super Diamond Deluxe might be more up your street. Full with gems and jewels, Super Diamond Deluxe is any diamond lovers dream. Find 5 Golden Reels on a spin to win the whole Progressive Jackpot. Golden Reels can be found on any spin, so play now for your chance to win.

Winstar Blueprint Progressive Jackpot Slot at 21Winstar

Winstar will take you on a journey through outer space, hunting for Jackpots all along the way. Similar to Super Diamond Deluxe, you'll have to find 5 Golden Reels all at once to take the Jackpot home with you. But still, the Jackpot can be won when playing with any stake, so have a go now.

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Beehive Bedlam Blueprint Progressive Jackpot Slot at 21Beehive Bedlam

If you want to fatten up your wallet then Beehive Bedlam online slot is the latest slot to offer the lucrative Jackpot Progressive. Beehive Bedlam is perfect for those looking to get their hands on the jackpot spoils. The jackpot progressive is activated during the Free Falls, which are triggered when you connect 3 or more Free Fall symbols. For your chance at winning the jackpot enter this crazy online game that'll open up different worlds and bonuses for bigger wins and jackpot glory.

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£10 free - No deposit required

T&Cs apply. New players only. 99x wagering requirement. £5 max stake with bonus. £50 max withdrawal for non-depositors. 7 day expiry. Not all games contribute. 18+ Begambleaware.org

100% First Deposit Bonus

T&C's Apply. 40x wagering requirement on bonus. Max claim £50. £5 max stake with bonus. 30 days expiry. Not all games contribute. 18+ Begambleaware.org

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