Best Slots Jackpot Casino Sites November 2025
We’ll go right ahead and say it: all of the best Irish casino sites offer progressive jackpot slots. From the massive Mega Moolah games that can pay out tens of millions of euros, to smaller daily jackpots, there’s something for everyone.
Progressive jackpot slots offer the biggest payouts around, but they’re not difficult to play at all. Want to give these fun games a try for yourself? Before you do, read our full guide to jackpot slot games, where we’ll tell you where to play, how to claim bonuses and which games are the best.
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Best Jackpot Slot Games 2025
You can start playing all of the best progressive jackpot slots now and there’s no need to spend huge amounts of money to do it. Top €10 deposit casino sites offer lots of jackpot games and we’ve put together a few of our favourites here.
Mega Moolah
Mega Moolah is the quintessential progressive jackpot slot game, having paid out some of the biggest jackpots in history. All of the best sites have this game, for example Karamba Casino .
This safari-themed game is played on a grid of five reels and three rows, with 25 paylines. It comes with wild symbols and a bonus round of 15 free spins, but the progressive jackpot is the most interesting part. You can trigger the jackpot round randomly after any spin and you’ll have a chance to bag one of four progressive grand prizes. Just keep in mind that the slot machine jackpot odds are slightly against you here, because the RTP is only 88.12%.
Immortal Romance Mega Moolah
If you’re a big fan of horror, you won’t want to miss out on the vampire-themed progressive jackpot.
Immortal Romance Mega Moolah holds the same huge potential payouts as the other games in the series, so you could win up to eight figures. To stand a chance to bag a jackpot, you’ll need to collect special jackpot trigger coins as you play. The game also comes with multiple special features, including free spins rounds with multipliers and there are 243 ways to win every time you spin.
Lots of progressive jackpot slots casinos offer Immortal Romance Mega Moolah, but we’d recommend playing at Sushi Casino.
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Book of Atem WOWPot!
Book of Atem WOWPot! is one of the best progressive jackpot slots because the potential payouts can be huge when you give it a go at sites like TonyBet. This Games Global title is set deep in a luscious jungle and it comes with four progressive jackpot prizes.
The book symbol acts as both the wild and the scatter ,and if you get three of them you’ll open up the free spins round. During free spins, expanding symbols cover entire reels to give you more shots at a win. You’ll collect book symbols as you play and the more you get, the better your chances of randomly triggering the jackpot round. When you see the jackpot wheel, you’re guaranteed one of four progressive prizes.
Greedy for Gold Power Hit
This online slot game comes with a fun Irish theme and you might just get lucky enough to bag your own pot of gold. Give it a try right now at top casino sites like QuinnBet, but it's available at multiple online casinos.
The game comes with 576 ways to win, which increases to a huge 1,944 during the free games. Look out for scatter symbols which trigger the free spins round and multipliers which increase your wins. To win one of the progressive jackpot prizes, you’ll need to collect enough of the special gold coin symbols to fill up the entire screen. The best part of this game is that the progressive jackpot prizes increase as you play!
Wheel of Wishes
Wheel of Wishes is a progressive jackpot in the WOWPot! series and it comes with four potential prizes. The biggest progressive jackpot can regularly reach eight figures and it always starts at at least €2,000,000. To get into the jackpot round, you need to trigger the Power Spin feature by landing two scatters, which can in turn trigger the special bonus game wheel.
Even if you don’t bag the big jackpot, there are lots of ways to win by matching symbols on the 10 paylines. Look out for wild symbols which can substitute for others, to help complete winning combinations. Wheel of Wishes is available at lots of top casinos including Spinaro.
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Buffalo Rising Megaways
This jackpot slot online is available at a few of the casinos on our list, including Dublin Bet. Buffalo Rising Megaways is part of the Jackpot Royale series and you’ll have a chance to win one of three different jackpot prizes. Any of the jackpots can be triggered randomly on any spin. The Megaways mechanic makes this slot even more thrilling than most other progressive jackpots, because the number of symbols landing on each change changes every time you spin - giving you a total of up to 117,649 ways to win. There’s also a free spins round that comes with an unlimited multiplier!
Cash ‘n Riches WOWpot Megaways
This game comes with Megaways which means that your ways to win change every time you spin, plus there’s an extra reel to add more symbols and give you extra chances to land yourself a win. Interested? Give the game a go now at CashWin Casino.
The rolling reels feature removes winning symbols from the grid, so that you’ll have another chance to get a winning combination. Every time you spin, wild symbols are collected and once the rolling reels feature is completed, you’ll have a chance to trigger the jackpot round and other bonus features. The more wilds you have, the better chance there is of getting into the jackpot round where you could bag one of four cash prizes.
Crabbin’ For Cash Extra Big Catch
This Jackpot King game - made by Blueprint Gaming - features one of the most popular slot game themes: underwater adventures. Dolfwin is just one of the top casino sites where you can enjoy this progressive slot.
The slot is played on a simple grid with five reels and there’s a free spins round which triggers if you get enough scatters. Collect fisherman symbols for even more free spins, plus multipliers of up to 10x. The progressive jackpot might be around the corner at any time, as it can trigger randomly on any spin.
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Best Casino Jackpot Slots Apps
Ready to find out where you can play for your chance at a big online slots jackpot? We’ve listed some of our top sites here. Keep in mind that while some of these might be €5 deposit casinos, you may need to deposit a little more to get the bonus.
Dolfwin
Dolfwin is a top destination for jackpot slots. Not only is the game variety excellent, but you can look forward to high-quality desktop and mobile play, 24/7 customer support and guaranteed security. The welcome package at Dolfwin is simple: you can bag a 100% match up to €1,000 when you sign up and deposit now.
Some of our favourite games include Coins of Ra Deluxe and Cash Grotto, but keep in mind that a lot of the games are fixed rather than progressive jackpots. The site is also home to a fantastic selection of table games, video poker options and live casino tables.
Sushi Casino
If you’re looking for a modern online casino site with a clean look and feel, Sushi Casino is ideal. This is one of our best Skrill casinos and the site also accepts bank cards, crypto and paysafecard. There’s a section in the lobby just for jackpot games, where you’ll find top progressives like Immortal Romance Mega Moolah and Book of Mega Moolah.
Sushi casino’s welcome offer awards you with a 100% deposit match up to €1,000, plus there are 50 free spins waiting for you. Look out for seasonal promos, tournaments, free spins offers and special daily missions too.
CashWin Casino
We were hugely impressed with the range of progressive jackpot games at CashWin casino. try your luck at Mega Moolah or WowPot games, or have a go at a DreamDrop game. But there’s so much more than just jackpots here. You can also explore Drops & Wins slots, Book of games and titles with themes like mystery, fantasy and wealth.
Just like the Sushi casino welcome bonus, CashWin gives you a 100% deposit match up to €1,000 and 50 free spins. Come back at any time to claim instant cashback, reloads and more.
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Spinaro Casino
Spinaro is a really modern site, so it’s not surprising that it’s one of our top picks for the best Apple Pay casino out there. When you sign up, your first stop should be the jackpots section, which is home to all of the best games like Book of Goddess Mega Moolah and Queen of Alexandria WowPot, as well as fixed jackpot games.
The Spinaro casino welcome offer is similar to some other sites on our list. There’s a 100% match up to €1,000 up for grabs, along with 50 free spins. Spinaro is really generous with promos - you could even win a car!
QuinnCasino
The QuinnCasino welcome bonus isn’t the biggest, but it’s a good way to make the most of a small deposit. All you need to do is deposit €10 and you’ll get €10 in casino credits. This fast withdrawal casino usually processes requests within 24 hours.
If you’re keen on jackpots, try out one of the 20 or so Power Play Jackpot titles by Playtech. Some of our favourites include Egyptian Emeralds, Storms of Ice and Tip Top Totems. There are also slingo games, new releases, Megaways slots and all of the casino classics like blackjack and roulette.
LiveScoreBet Casino
LiveScoreBet is one of the best PayPal casino sites for slots, live dealer games and even sports betting. LiveScoreBet also has one of the best free spins casino offers we’ve seen - deposit just €10 now and you’ll bag a cool 300 free spins.
There are lots of fun games for you to explore at LiveScoreBet, from six-figure progressive jackpot prizes on games like Anubis Rising and Big Catch Bass Fishing, to thrilling Megaways games. If you want to try something different, have a go at one of the slingo titles like Deal or No Deal Slingo or Starburst Slingo.
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Karamba Casino
You’re sure to be impressed by the selection of slots and casino games at this paysafecard casino. Jackpots are one of the highlights - there are around 250 games to choose from, including the Mega Moolah and Jackpot Royale slots. While you’re here, be sure to check out the live casino, where you can find games like Lightning Roulette, One Blackjack and Crazy Time.
Karamba online casino offers a standard match of 100% up to €1,000 but there’s also a generous 250 free spins thrown in. Regulars also get weekly promos like free spins and prize draws.
DublinBet Casino
DublinBet Casino is made for Irish players and it’s one of the best crypto casino sites out there, accepting payments via Bitcoin, Litecoin and Ethereum, as well as bank cards. The site comes with some exciting special features, for example you can bet live with streamers.
The game selection at DublinBet is excellent, featuring top progressive Gold Money Frog and Mercy of the Gods. In fact, there’s a whole section dedicated to jackpots. Ready to give DublinBet casino a go? Sign up and deposit now to get a 100% match up to €1,000 plus 100 free spins to help you kick off.
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Best Payment Methods to Play Progressive Jackpot Slots
There are lots of different payment methods you can use to top up your account before you play progressive jackpot games. Some payment methods are a lot more common in Ireland, for example while online casino pay by phone bill sites are hard to find, almost everywhere accepts bank cards (including Revolut) and bank transfer online casino sites are also very common.
Bank cards are a great option if you value simplicity. It’s just like buying anything else online and you don’t need to set up any extra accounts. On the downside, bank card withdrawals take a few days to land in your account, unless the casino has an instant withdrawal feature.
If you want to avoid the waiting time (and fees), you can choose e-wallets like PayPal, Skrill or Neteller. This is a good way to keep your online gambling transactions separate from your main bank account and in general withdrawals tend to be instant. Prepaid paysafecards are also handy for small deposits, but they can’t be used to withdraw.
More and more Irish online casinos are starting to accept cryptocurrencies like Bitcoin. These payments are secure and instant and they support much higher transactions compared with fiat currency methods.
Jackpot Slot Game Online Casino Bonuses
While free spins on progressive jackpot games are almost impossible to find, some sites give you a deposit bonus that can be used on jackpots. The most important thing to do is check the T&Cs so that you know exactly what the offer is valid on and you can make the most of it. Just remember, if you’re playing at a €1 deposit casino site, you’ll probably need to top up with at least €10 to get your bonus.
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Progressive Jackpot Slot Free Spins
There are plenty of 50 or 100 free spins offers at Irish online casinos, but before you get too excited, it’s important to remember that these promos aren’t usually valid on progressive jackpots. It’s a great idea to claim the free spins and use them on the valid game and after all the wagering requirements have been met, you can use your winnings to play progressive jackpot games. Depending on the site, you could get the free spins as soon as you sign up, or after you’ve made a deposit.
Jackpot Slots Deposit Bonus
Most of the sites on our list offer a deposit bonus for new players, for example you could get as much as 100% up to €1,000 when you make your first deposit. This is an ideal way to boost your balance immediately. You might not be able to use your deposit match bonus on progressive jackpots online, so be sure to check the T&Cs in advance. There’s a chance you might need to use casino promo codes to get your bonus, so we’ll always list the best ones for you here at Bookies.com.
Jackpot Slots No Deposit Bonus
Free spins no deposit and casino credits offers can be a little difficult to find, but they’re always worth it. Who wouldn’t want to spin totally for free? Some casino sites hand out five or 10 free spins as soon as you sign up, but we’re yet to come across an offer that’s valid on progressive jackpots. Instead, you should approach it like any other promo - make the most of the offer and then use your winnings to play jackpot slots of your choice.
Casino Cashback on Jackpot Slots
What if there was a way to turn your losses into wins? Well, there is. Some online casino apps and sites give you up to 100% cashback on your net losses after the promo period. This means that even if you don’t get lucky the first time, you won’t have lost all your cash and you can try again for a win. It’s possible that mega jackpot slot games might be excluded from casino cashback offers, but in general these promos are a bit more favourable than deposit match offers or free spins.
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How to find New Progressive Jackpot Slot Games
Irish casino sites release new progressive jackpot slots every now and then, but in general this is less frequent than standard video slots. While some game providers make up to five new games every month, very few of these are actually progressives. The best thing to do is keep an eye on both the jackpots section and the new games section at your chosen online casino to see all the latest releases. New games are usually marked with a tag in the lobby so they’re easy enough to identify.
If you’re not signed up anywhere yet, or you’re simply looking for a new online casino Ireland site that offers great progressives, you should check this page at Bookies.com regularly. We keep our list updated when new progressive jackpot slots sites launch, or if any existing sites add fantastic new titles to their game selection.
Progressive Jackpot Slots vs Fixed Jackpot Slots
Most online slots Ireland sites offer both fixed and progressive jackpot games and there are a few key differences between the two. Although there are more fixed jackpots available, progressives tend to offer a much more thrilling experience.
If you’re playing a fixed jackpot slot machine jackpot, the maximum win amount is always a set value based on your stake amount. For example, you might be able to bag a jackpot of 5,000x or even 10,000x your stake, which is particularly good news if you’re playing for a high stake value.
Progressive jackpots online, on the other hand, don’t have a set maximum payout (although it might be capped if it gets high enough). Every time someone spins on the game, a small percentage of the losing stake is added to the prize pot. Because these games are available at hundreds of casinos all over the world, the prizes can get really huge, unlike standard slot games. Just be aware that the Return to Player percentage of progressives isn’t always the best - even at the best payout casino sites, the RTP of progressive slots is generally lower.
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How to Play Progressive Jackpot Slots Online
All progressive jackpot slots online are slightly different, so the best thing to do is have a quick look at the paytable and game info as soon as you open up a slot. This will give you an idea of how the jackpot round works, which symbols award the biggest wins and how to to get free spins or multipliers.
Gameplay usually works like any other slot game. You can use options at the bottom of the screen to set the number of paylines (if it’s adjustable) and your stake value. Then simply click on the spin button to watch the symbols land and see if you get lucky.
Triggering the progressive prize isn’t the only way to win on jackpot slot games. You can also get normal line wins if you land matching symbols on adjacent reels on one of the paylines as you would on standard slot games. A lot of progressive jackpot slots also have free spins rounds, which you can trigger by landing enough of the scatter symbols on the grid. However, the jackpot prize usually can’t be won during free spins.
Most progressive jackpots can be triggered randomly at the end of any single spin in the base game at online casino Ireland sites. Sometimes, a special jackpot wheel will open up, which you’ll need to spin to see which progressive prize you win. Some jackpot slots - like Mega Moolah - give you a better chance of winning the jackpot if you play for a higher stake value.
Progressive Jackpot Slots FAQs
What are progressive jackpot slots?
A progressive jackpot slot game has a prize that increases all the time. Every time someone spins on the game, a little bit of the losing stake is added to the jackpot prize, which is why they can reach dizzying heights.
What slot has the biggest jackpots?
What are the slot machine jackpot odds?
Where to find the best progressive jackpot slots?
What are the best progressive slot machines?
How do I win an online slots jackpot?
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