Jackpot Slots

In the online casino realm, a few games are as popular as progressive jackpot slots. These games provide the exciting gameplay of online slots while also giving you the chance to win significant prizes. Because jackpots keep growing until someone wins, it's possible to win millions on progressive slots without spending too much money.

If you love online slots, there's no doubt you want to play the best progressive slots for a chance to win huge jackpots at a single spin. That's why our team of experts at Gambling.com has reviewed the top online casinos, from which we selected the most exciting progressive online slots for you to play. Our slots experts take a spin on every online progressive slot that is available in Ireland. We look for the best bonus features, biggest prizes, and best odds to win a jackpot.

Read this complete guide to progressive slots, and discover everything you need to know about playing the most exciting type of online casino games. Although the odds may be slim, who knows, perhaps the next jackpot has your name on it? So read on and start playing the best progressive jackpot slots today!

Recommended Progressive Slots Sites

Bell Icon
Affiliate Disclosure: At Gambling.com, we want to ensure that players are matched with the right casino and sportsbook offers for them. For this reason, some of the recommended site links are affiliate links. This means that if you visit a website through our link and make a deposit, Gambling.com will receive a commission payment at no extra cost to you. At Gambling.com, we want to ensure that players are matched with the right casino and sportsbook offers for them. For this reason, some of the recommended site links are affiliate links. More
  1. Regular Cashback Bonuses & Prize Draws
    Live Chat Support Available 24/7
    Loyalty Program with First 500 Points Free
    Bonus Code
    The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    The number of times you have to play through your bonus before you are able to withdraw any winnings
    35x
    Payout Time
    The average withdrawal processing time
    1-2 Days
    Slot Games
    The total number of online slot games available
    1386
    Jackpot Slots
    The number of jackpot slot games available
    70
    Slot Providers
    The number of different slot game software providers
    103
    Casimba Casino has been a 'roaring' success since launching in 2017. The site is fully optimised for mobile and offers players a slick and smooth user experience, plus plenty of promotions.
  2. Regular Cash Giveaway Draws
    Multiple Blackjack Games with 99.63% RTP
    VIP Club with a Salon Privé for Elite Players
    Bonus Code
    The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    The number of times you have to play through your bonus before you are able to withdraw any winnings
    35X
    Payout Time
    The average withdrawal processing time
    1-5 Days
    Slot Games
    The total number of online slot games available
    1421
    Jackpot Slots
    The number of jackpot slot games available
    107
    Slot Providers
    The number of different slot game software providers
    112
    Dream Vegas Casino aims to recreate the magic and excitement of the Vegas strip and is fully optimised for mobile use. Their generous sign-up bonus is split over your first three deposits.
  3. Majestic 'Lion' Themed Casino Site
    Second & Third Deposit Bonuses & Free Spins
    5-Tier 'Premier Club' - up to 40% Cashback
    Bonus Code
    The code required to claim this sign-up bonus (if any)
    FDB100
    Bonus Wagering
    The number of times you have to play through your bonus before you are able to withdraw any winnings
    50x
    Payout Time
    The average withdrawal processing time
    3-5 Days
    Slot Games
    The total number of online slot games available
    50
    Jackpot Slots
    The number of jackpot slot games available
    60
    Slot Providers
    The number of different slot game software providers
    14
    Premier Casino, as the name suggests, seeks to offer an unrivalled online casino experience and you'll find subtle 'lion' symbolism throughout, including for each tier of their VIP Premier Club.
  4. Dual Casino & Sportsbook Platform
    Exclusive Branded Megaways Slots
    Live Chat Support Available 24/7
    Bonus Code
    The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    The number of times you have to play through your bonus before you are able to withdraw any winnings
    35
    Payout Time
    The average withdrawal processing time
    1-3 Days
    Slot Games
    The total number of online slot games available
    1183
    Jackpot Slots
    The number of jackpot slot games available
    53
    Slot Providers
    The number of different slot game software providers
    13
    BetVictor were one of the pioneers of the online gambling industry and their online casino, launched in the UK back in 2000, is fully licensed in Ireland.
  5. Awarded 'Live Casino of the Year' 2019
    Daily 'Must Win' Live Casino Jackpot
    Part of the William Hill Group
    Bonus Code
    The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    The number of times you have to play through your bonus before you are able to withdraw any winnings
    35x
    Payout Time
    The average withdrawal processing time
    3-5 Working Days
    Slot Games
    The total number of online slot games available
    490
    Jackpot Slots
    The number of jackpot slot games available
    468
    Slot Providers
    The number of different slot game software providers
    44
    Mr Green Casino has been the recipient of multiple gaming industry awards for innovation and social responsibility and was acquired by the prestigious William Hill Group in 2019.
  6. 'Best Casino Operator' 2015, 2019 & 2021
    Listed on London Stock Exchange Since 2005
    Exclusive In-House Live Casino Tables
    Bonus Code
    The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    The number of times you have to play through your bonus before you are able to withdraw any winnings
    30x
    Payout Time
    The average withdrawal processing time
    2-5 Days
    Slot Games
    The total number of online slot games available
    945
    Jackpot Slots
    The number of jackpot slot games available
    45
    Slot Providers
    The number of different slot game software providers
    5
    888casino is a multiple award-winning online casino that boasts a huge range of top games, including over 1000 online slots, plus exclusive in-house games.
  7. Part of Award-Winning Leo Vegas Group
    Super-Fast Withdrawal Process
    Win Over €5 million with the GoGoJackpot
    Bonus Code
    The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    The number of times you have to play through your bonus before you are able to withdraw any winnings
    35x
    Payout Time
    The average withdrawal processing time
    1-5 Days
    Slot Games
    The total number of online slot games available
    1186
    Jackpot Slots
    The number of jackpot slot games available
    27
    Slot Providers
    The number of different slot game software providers
    26
    GoGo Casino is part of the LeoVegas Gaming group and offers a fruity experience to players in Ireland, who can try their luck at the exclusive four-level €5,000,000 GoGoJackpot.
  8. Refreshingly Simple Mobile First Casino
    Regular Slots Tournaments & Prizes
    Weekly Live Casino Reload Bonus
    Bonus Code
    The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    The number of times you have to play through your bonus before you are able to withdraw any winnings
    35x
    Payout Time
    The average withdrawal processing time
    1-5 Days
    Slot Games
    The total number of online slot games available
    2430
    Jackpot Slots
    The number of jackpot slot games available
    140
    Slot Providers
    The number of different slot game software providers
    112
    CasinoDays has a clean and easy-to-use mobile first interface which no frills - ideal for players who just want to get stuck into the action.
  9. Regular Prize Draws with Big Cash Prizes
    Exclusive 'Must Go' Jackpot Slot Games
    Live Chat Support Available 24/7
    Bonus Code
    The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    The number of times you have to play through your bonus before you are able to withdraw any winnings
    30x
    Payout Time
    The average withdrawal processing time
    1-5 Days
    Slot Games
    The total number of online slot games available
    2589
    Jackpot Slots
    The number of jackpot slot games available
    56
    Slot Providers
    The number of different slot game software providers
    130
    Spinland Casino offers players in Ireland a welcome bonus spread over multiple deposits, including free spins on selected slots. They also host a huge portfolio of games, which includes live poker, Must Go Jackpot slots, scratch cards and more.
  10. 15% Weekend Cashback Boost
    9 VIP Levels with Cash Prizes
    Super-Fast Registration Process
    Bonus Code
    The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    The number of times you have to play through your bonus before you are able to withdraw any winnings
    17.5x
    Payout Time
    The average withdrawal processing time
    1-2 Days
    Slot Games
    The total number of online slot games available
    2622
    Jackpot Slots
    The number of jackpot slot games available
    156
    Slot Providers
    The number of different slot game software providers
    24
    Arcanebet Casino rewards players with regular promotions, from tournaments with extra prize pools to cashback and bonus offers. They are one of the few online casinos to accept cryptocurrencies, including Bitcoin, Litecoin, Ethereum, Dogecoin, Tron & Tether.
  11. 11
    Rant Casino
    Established 2020
    More Details
    Stylish Pop Art Comic Theme
    Up to 25% Weekly Cashback
    Daily Missions for Bonus Prizes
    Bonus Code
    The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    The number of times you have to play through your bonus before you are able to withdraw any winnings
    35
    Payout Time
    The average withdrawal processing time
    3-5 Days
    Slot Games
    The total number of online slot games available
    3470
    Jackpot Slots
    The number of jackpot slot games available
    38
    Slot Providers
    The number of different slot game software providers
    40
    Rant Casino is a cleverly designed platform with regular promotions, including weekly cashback and 'Ranters Quests' - a series of daily missions and tournaments for you to win free spins and cash prizes.
  12. Vibrant Cabaret Themed Casino
    Up to 15% Weekly Cashback Insurance
    Weekly Free Spins Reload Bonus
    Bonus Code
    The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    The number of times you have to play through your bonus before you are able to withdraw any winnings
    35
    Payout Time
    The average withdrawal processing time
    1 - 3 Days
    Slot Games
    The total number of online slot games available
    2500
    Jackpot Slots
    The number of jackpot slot games available
    386
    Slot Providers
    The number of different slot game software providers
    52
    At Winota Casino you collect 'Winota Coins' as you play and progress in their 'Cabaret World', unlocking prizes at each new level as well as collecting 'Cabaret Star Cards' to change your avatar.
  13. Dual Casino & Sportsbook Platform
    50 Free Spins Weekly Reload Bonus
    Up to 25% Weekly Cashback
    Bonus Code
    The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    The number of times you have to play through your bonus before you are able to withdraw any winnings
    35x
    Payout Time
    The average withdrawal processing time
    1-5 Days
    Slot Games
    The total number of online slot games available
    3925
    Jackpot Slots
    The number of jackpot slot games available
    200
    Slot Providers
    The number of different slot game software providers
    100
    Oh My Spins Casino provides Irish players with a clean and easy-to-use platform featuring a huge variety of traditional casino games and live casino tables.
  14. Dual Casino & Sportsbook Platform
    Regular Slots Tournaments & Prizes
    Quick & Simple 2-Step Registration
    Bonus Code
    The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    The number of times you have to play through your bonus before you are able to withdraw any winnings
    30
    Payout Time
    The average withdrawal processing time
    1-3 Working Days
    Slot Games
    The total number of online slot games available
    1800
    Jackpot Slots
    The number of jackpot slot games available
    256
    Slot Providers
    The number of different slot game software providers
    60
    ZetBet Casino has a clean and fresh looking games lobby with a healthy selection of traditional games and slots including classics such as Book of Dead, Starburst and Rise of Merlin.
  15. VIP Program Rewards & Special Privileges
    Daily Slot Races with Cash Prizes
    24/7 Live Chat Customer Support
    Bonus Code
    The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    The number of times you have to play through your bonus before you are able to withdraw any winnings
    40x
    Payout Time
    The average withdrawal processing time
    3 - 5 Days
    Slot Games
    The total number of online slot games available
    3775
    Jackpot Slots
    The number of jackpot slot games available
    404
    Slot Providers
    The number of different slot game software providers
    66
    Spinia Casino is a vibrant and user-friendly Ireland online casino with regular rewards for frequent players, including a weekly reload bonus.
  16. Awarded ‘Casino of the Year’ 2017 & 2018
    Win Prizes in Daily Slots Tournaments
    Official Partner of F1 McLaren Racing Team
    Bonus Code
    The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    The number of times you have to play through your bonus before you are able to withdraw any winnings
    35x
    Payout Time
    The average withdrawal processing time
    1-2 Days
    Slot Games
    The total number of online slot games available
    1445
    Jackpot Slots
    The number of jackpot slot games available
    248
    Slot Providers
    The number of different slot game software providers
    9
    Part of the multinational gaming group Entain, Party Casino offers a huge range of progressive jackpots and exclusive slots tournaments, with 24/7 support. All of which makes them one of the very best Irish online casinos.
  17. 'Online Casino of the Year' 2018-2022
    'Mobile Casino Product of the Year' 2021
    Exclusive 'LeoJackpot' Slot Games
    Bonus Code
    The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    The number of times you have to play through your bonus before you are able to withdraw any winnings
    25x
    Payout Time
    The average withdrawal processing time
    1-5 Days
    Slot Games
    The total number of online slot games available
    2028
    Jackpot Slots
    The number of jackpot slot games available
    92
    Slot Providers
    The number of different slot game software providers
    58
    Leo Vegas Casino has won multiple industry awards, including 'Online Casino of the Year' at the Global Gaming Awards five years in a row (2018-2022).
  18. Part of Award-Winning Leo Vegas Group
    Royal Panda Loyalty Club Exclusive Perks
    'Bamboo Bonus' - Weekly 50% Deposit Match
    Bonus Code
    The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    The number of times you have to play through your bonus before you are able to withdraw any winnings
    35x
    Payout Time
    The average withdrawal processing time
    1-3 Days
    Slot Games
    The total number of online slot games available
    2300
    Jackpot Slots
    The number of jackpot slot games available
    45
    Slot Providers
    The number of different slot game software providers
    91
    Royal Panda offers an intuitive and aesthetically pleasing dual casino and sportsbook platform rich with features. Aside from the usual bonuses on offer, for every deposit you can claim a 5% bonus top-up which has a low 3x wagering requirement.
  19. Medieval Arthurian Themed Casino
    Regular Promotions & Free Spins
    50% Lucky Weekend Bonus
    Bonus Code
    The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    The number of times you have to play through your bonus before you are able to withdraw any winnings
    40x
    Payout Time
    The average withdrawal processing time
    1 Working Day
    Slot Games
    The total number of online slot games available
    2100
    Jackpot Slots
    The number of jackpot slot games available
    320
    Slot Providers
    The number of different slot game software providers
    110
    Avalon78 Casino takes you on a mythylogical journey back to the time of Arthurian legend, with a VIP program in which you can climb up the ladder and become King Arthur himself.
  20. Play New 'Vinnie Jones Roulette'
    Flexi Bonuses - Cash Out Any Time
    Wide Selection of Jackpot Slots
    Bonus Code
    The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    The number of times you have to play through your bonus before you are able to withdraw any winnings
    30x
    Payout Time
    The average withdrawal processing time
    24h
    Slot Games
    The total number of online slot games available
    305
    Jackpot Slots
    The number of jackpot slot games available
    37
    Slot Providers
    The number of different slot game software providers
    26
    Betway has long been considered a first-rate casino and sportsbook worldwide. In 2012 a customer won a record £13.2 million on the Mega Moolah slot at Betway Casino - just 25 minutes after signing up.
Show More
Showing 20 of 77

Progressive Slots Casino Tips

Top 13 Halloween Slot Games To Play Now
Top 13 Halloween Slot Games To Play Now
Slot games can be plenty of fun. Many of them are charming and bright, providing players with a them...
Summer Slots Games: Top Titles to Play June, July, August
Summer Slots Games: Top Titles to Play June, July, August
With summer just around the corner, here's a list of the top six slots to take in along with the sun...
Tips for Competing in an Online Casino Tournament
Tips for Competing in an Online Casino Tournament
Every player dreams of million-dollar payouts. Here's the essentials from someone who's done it.

What are Progressive Slots and How do they Work?

While the core gameplay of progressive slots is the same as on a regular online slot, prizes are paid differently.

As the name suggests, progressive slots do not have a fixed prize but rather a jackpot prize that progresses and grows with every wager placed on the slot. Thus, unlike standard online slots that feature prizes based on each player's wager, progressive slots feature a jackpot which is a community prize that increases with every wager made on the game.

Jackpot Prize Components

The progressive slot developer, or in some instances the casino operator, fund the initial jackpot with a certain amount of prize money that is called the Jackpot Seed. Also, a certain amount from every wager a player makes on the progressive slot is added to the jackpot that will keep growing until a lucky player will land the winning combination of symbols and trigger the jackpot. Once won, new seed money is placed, and the jackpot will start growing/progressing again. So the longer a progressive slot goes without a win, the bigger the jackpot grows.

In many cases, progressive jackpots are not only linked to one slot game but run across a casino website, a network of sites, or series of slot games. By spreading the jackpot across many sites and games, developers and casinos can provide truly massive jackpots.

It's also worth noting that the game developer builds an insurance component into the jackpot. Specifically, a small portion of each bet goes towards maintaining the Jackpot Seed and prize liquidity. Doing so ensures that the developer is always able to pay out prizes once the jackpot is won.

Jackpot Superstitions

There's a lot of superstition around progressive slots. Some gamblers will never play a progressive slot game if the jackpot has just been won, believing it is impossible to trigger the jackpot again. That's a false assumption because there is no truth behind the online slots' pattern. Every progressive slot is regulated by an RNG (Radom Number Generator), which assures that every spin's outcome is random. Although, you should remember that it's always better to wait for the jackpot to build up before playing a progressive slot game that has recently reset.

Standalone Progressives

Standalone progressive slots are perhaps the simplest variant of progressive jackpot slots. These slot games are not connected to a network or other casinos. Instead, it's a traditional online slot that takes a fraction of each bet to increase the jackpot. Because of the more limited scope for increasing the jackpot, a standalone progressive slot game won't have prizes comparable to other progressive slots online.

With standalone progressive slots, each machine will feature its own jackpot, which can only be won at that machine. In contrast, a local progressive jackpot could be won playing any of the machines in a network as they are all connected.

Local Progressives

A local progressive is similar to a standalone progressive slot because it accumulates stakes from a single casino and not a network. Sometimes the progressive jackpot will increase from several slots hosted at the same casino instead of just a single game. Still, the idea is the same, as there is no network of games allowing jackpots to increase to astronomical levels.

For example, let's assume that casino A and casino B have the same progressive slot machine. Despite being the exact same game, the jackpot will vary from one to the other. That's because only bets made at casino A will count towards the progressive jackpot. Likewise, only bets made at casino B will count towards that jackpot.

Wide Area Network Progressives

Wide area network progressive jackpot slots take a cut from bets made from a slot game across several different casinos. For example, if casinos A, B, C, and D all offer the same progressive jackpot slot, then all stakes will go towards the same prize pool. This also means that players at casinos A, B, C, and D will compete for the same jackpot.

A network may be a group of casinos, all casinos hosting the progressive slot in a country, or even a global network. Playing wide area network progressive slots online means you could win a truly large sum of money.

Most Popular Online Progressive Jackpot Slot Games

Progressive slots are amongst the most popular games in the online casino world, so developers reserve some of their best titles and features for progressive games. There's a lot of variety to choose from, with games providing different features, jackpot sizes, payment methods, and more.

Check out our jackpot tracker to monitor the prizes as they increase to unbelievable sums. It will tell you when the best time is to play a game. For example, you don't want to play progressive slots online if the jackpot has just been won. There will be no money accumulated, so it's better to wait a while. Equally, if a game has accumulated a massive prize fund, now could be the time to play.

There are many great progressive slots available to play online. But to get you started, we listed below 10 of our favourites:

Mega Moolah - Perhaps the most famous and popular progressive jackpot of them all and known for generating some of the biggest online casino wins of all time. The jackpot game is triggered randomly, with increased chances when placing the maximum bet. Players get the chance to spin a wheel, which will point to a sector. It can land on Mini, Minor, Major or the millionaire Mega jackpot. Naturally, Mega Moolah also has fixed winning combinations like any other regular slot. Due to its popularity, Mega Moolah's online progressive jackpot tends to grow rapidly.

Mega Fortune - This slot by NetEnt is also known for some of the biggest progressive jackpot wins online. Its bonus round is triggered by lining up three or more bonus symbols. Players get the chance to spin the Wheel of Fortune. This bonus game has three different circles. Landing on any number results in an instant win, but not the big progressive jackpot prize. To do that, you'll need to line up three arrows on the three circles.

Hall of Gods - Another popular progressive slot game by NetEnt, Hall of Gods draws inspiration from Nordic mythology. The prize round is triggered by lining up three Bonus symbols. Players need to break shields, lined up in a 5x3 format. Once three of the same symbols are matched, the bonus game ends. You must line up three Mega Jackpot symbols to scoop the big prize in the Hall of Gods.

Jackpot Giant - Unlike the other games in this list, Jackpot Giant by Playtech has a regular bonus round. It's a simple game in which players pick a volcano, which will then reveal the prize. How do you play (and win) this progressive slot? It's more basic than some other progressives, paying out the jackpot when five Wild symbols line up.

Arabian Nights - Another progressive jackpot online slot for NetEnt, Arabian Nights is one of the company's first progressive titles and has remained popular at the best online casinos. Thanks to its high RTP, Arabian Nights gives you plenty of chance to win its progressive jackpot, triggered by five Wild symbols from a maximum bet. You'll also find plenty of cool features, such as a free spins round.

Mega Fortune Dreams - NetEnt cemented its reputation for making amazing progressive online slots when it launched Mega Fortune Dreams back in 2014. Since then, the game has been popular with slot fans thanks to its 10x multiplier, re-spins round, and sticky wilds feature. Of course, the reasons players return to Mega Fortune Dreams is for its Mega Jackpot progressive prize, which you can win via the Bonus Wheel round.

Empire Fortune - Yggdrasil Gaming takes the progressive online slot concept to the next level with Empire Fortune, a game that features three progressive jackpots. Among the features is a Free Spins bonus that delivers 30 spins with a 10x multiplier. If you want the big prize, you'll need to trigger the Jackpot Wheel that could see you win a cash prize 500 times your initial wager. You can also trigger the Fireworks bonus to gain 12 rockets that could propel you to one of the progressive jackpots.

Beach Life - When you spin the reels of Beach Life, you get a breezy summer-themed slot that carries a massive progressive jackpot. Playtech's colourful online slot brings you 5-reels and 20 adjustable pay lines. It's worth noting this has a lower RTP than average, but you do get to play for a huge prize. In fact, the Beach Life jackpot routinely heads into six figures.

Major Millions - Microgaming is known for its huge progressive jackpot slots, and while Mega Moolah usually grabs the headlines, you should not ignore Major Millions. This comic military-themed 5-reel slot is relatively simple without many additional bonus features. However, it does have its massive progressive jackpot, which means you should always bet the maximum bet on Major Millions.

Joker Millions - Yggdrasil Gaming delivers plenty of fun and monster prizes with Joker Millions, one of the best progressive jackpot slots available. This basic 4-reel and 10 payline online slot uses a Joker as a sticky special symbol. Whenever you fill the pay lines with this Joker sticky, you get the progressive jackpot win.

Biggest Progressive Slot Wins

Mega Moolah holds the current record for the biggest progressive jackpot slot win, highlighting why it is one of the most popular online slots ever. Microgaming's game holds seven of the top ten highest-ever progressive jackpot wins, with NetEnt's Mega Fortune taking the other spots. Whichever of these games you choose, if you win, you'll be smiling all the way to the bank.

The biggest online progressive jackpot ever paid went to an anonymous player on September 28, 2018. Grand Mondial Casino hosted the win, which was claimed on Mega Moolah. Because the player decided to remain anonymous, no information is known about their nationality or name. Their prize was a massive €18,915,721.

Mega Moolah also provided the second-largest progressive slot payout of all time, handing an anonymous Canadian player CA$20,057,734 million at Zodiac Casino.

On October 6, 2015, a British player named Jon Heywood won a £13,312,882 progressive jackpot at Betway. The Guinness Book of Records recognized Heywood's record. His prize was the largest online jackpot payout in history at the time. Since then, Heywood's sizeable win has dropped to number 3 on the list. But we doubt that he is complaining.

In 2013, NetEnt's Mega Fortune delivered a massive prize of €17,860,868 to an anonymous Finnish gambler playing at Paf Casino. Despite being won over eight years ago, this remains the fourth biggest jackpot ever.

Progressive slots are the best way to win big prizes at online casinos. With constantly growing jackpots, prizes are often in the seven figures. And, as we can see here, they can even grow into eight-figure prizes that create multi-millionaires!

Now that you know how to play progressive slots, don't you think it's time to try for yourself? Choose from our list of progressive slots and start spinning now!

Progressive Slots Game Developers

While there are many online slot developers, the best progressive jackpot slots still come from some of the online casino industry's most prominent software developers.

Below is a list of the top online slot developers in the world:

Microgaming – Arguably the biggest name in the online slot world, Microgaming is also the longest-standing developer of casino games. Since opening its doors in 1994, the company has been creating some of the most famous online gaming titles available. From cult classics to true blockbuster slots, Microgaming has done it all. Still, the Mega Moolah and Major Millions progressive jackpot slots are perhaps the most famous of all Microgaming's software.

NetEnt – Once a pretender to Microgaming's crown, NetEnt is now equal to its rival thanks to its innovative approach to online slots. Notable for its ambitions and unique games, NetEnt also has some of the best progressive jackpot online slots. Mega Fortune is the best known of the company's progressive slots online and was once famous for paying out some of the biggest jackpots.

Playtech – One of the leading online casino game developers globally, Playtech has an extensive catalogue of slots, including some of the best progressive slots online. Playtech slots are well-known for giving players a lot of control over paylines. Of course, in a progressive jackpot game, you'll want to be betting the maximum amount, but it's still nice to have the option to choose wagers more dynamically if needed.

Yggdrasil – Compared to its more established rivals, Yggdrasil is still a newcomer in the world of online slots. Since debuting in 2013, the Swedish company has wasted no time creating some all-time classic games. With its progressive jackpot slot titles, Yggdrasil has become known for leveraging the latest technology to deliver memorable game experiences. The result is fresh online slots that still provide massive prizes.

Mobile Progressive Slots and Games

One of the best things about online casinos is that you can play them on the move. The industry has moved with the mobile revolution, bringing casino games to smartphones and tablet on iOS and Android. That includes progressive jackpot online slot games that you can access on a mobile device.

However, there are some things you should consider when looking for a progressive slot game to play on mobile.

Make sure that the online casino or slot app you choose is reliable and works properly. This ensures the site you use is secure and does not have any performance problems. One way to guarantee the best mobile progressive slot game experience is to select one of our recommended mobile online casinos.

We highlight the best online casinos that have fully optimized mobile casino experiences that are available in one of two forms:

Mobile browser – If you want to play progressive jackpot slots on mobile, you can do it directly through the browser on your smartphone or tablet. It is very close to the desktop experience, although the site will be optimized for different mobile devices and screen sizes. You may also see some changes to the graphics, menus and features depending on the device you are using. Casinos available on mobile browsers can be accessed through Android, iOS and Windows Phone devices.

Apps – Many online casinos and slot developers have a dedicated mobile casino app. While this means you need to download the software to your mobile device, there are some great benefits to mobile slot apps. For example, with a dedicated app, you will get an online casino experience designed from the ground up for mobile devices. An app usually offers superb connectivity, ultimate mobile usability and device notifications. Mobile slots apps are available to download for iOS and Android devices, and can be found on casino websites and app stores.

Who Pays Progressive Slot Winnings?

One question we see often is: how can slot developers afford to pay the massive progressive jackpots? However, it's not really the developer who pays the winnings. Remember, a progressive jackpot is funded from a percentage of each bet made by players. In other words, it is you and other players who really pay the jackpot.

So, what about cashing out your prize if you win big? Let's not forget that some players have won millions playing progressive jackpot online slots.

If you win a smaller amount, the online casino you played at will usually handle the payout. However, online casinos have a maximum withdrawal amount, limiting how much of your winnings you can cash out. For example, your online casino may only allow you to take out €10,000 each month from your account. If you win significantly more, you will have to receive your winnings over months or even years.

For the biggest progressive jackpot wins, the software provider issues the payout. When this happens, the prize is usually given in a single lump sum. Sometimes the developer will offer a single lump sum and then annual instalments. Whether it's a payout from the casino or developer, it's always best to read the terms and conditions to understand a slot game's payment structure properly.

Progressive Slot Games – Betting Maximum and Checking T&C

While online slots vary significantly from game to game, you usually must wager the maximum bet to be able to win a progressive jackpot. "Bet Max" means you wager the highest possible coin value on each spin of the reels. That means playing progressive slots can be expensive, but the rewards can be huge.

If you don't want to bet the max amount, it's arguable you should avoid playing a progressive jackpot slot altogether. However, all progressive jackpot games provide base games with other prizes, which allows you to play them like a regular online slot game.

Mega Moolah is probably the most famous progressive jackpot game, but you don't always need to Bet Max to win big. That's because this game has some other monster prizes, such as other jackpots that can run as high as €1 million without needing to bet the maximum wager.

As always, you should read the Terms & Conditions for the progressive online slot you are going to play. By doing so, you'll learn about betting limits, withdrawal terms, and any casino bonuses. If you play progressive slots regularly, you will be spending a lot of money, so you need to protect your investment. Understanding the game rules means you know exactly where you stand and won't have any nasty surprises in the future.

Progressive Slots Fairness and RNG

Progressive jackpot slots are popular because they offer people the chance to win large sums of money. The best developers and slot games will always give you a fair chance of success, and the leading online casinos will provide a secure environment to play. We recommend all the online casinos and slot games independently tested by independent regulators to ensure they provide fairness to gamblers.

We strictly review and then choose the leading casinos with the best progressive slots online. Every casino site we recommend is fully licensed by the UK Gambling Commission. This ensures that the games are always fair, you are always protected and you will always be paid your winnings.

Remember that like any form of gambling progressive online slots are meant for entertainment only, and winnings are based purely on luck. So always gamble responsibly, never try to chase your losses and keep a close eye on your bankroll. In case you feel things are getting out of control, take a break and seek help. Always make sure you gamble responsibly, so you can come back for your chance of a winning spin on a progressive slot.

FAQ


Yes they are. All the casino operators we feature on gambling.com are fully licensed by the UKGC. Therefore all the games they feature, including progressive slots are tested, certified, safe and 100% legal. Still, it is important to always gamble responsibly.

Yes you can. Many progressive slots will offer different wager thresholds to quality for winning jackpot prizes. Although most progressive slots will allow you to win with one spin, you may be required to place the maximum bet possible. It is recommended to check the casino and slot's Terms & Conditions to avoid disappointment.

Not exactly. Although a progressive slot's prize will reset once the jackpot has been won, the casino or software developer will contribute every time a Jackpot Seed which is an initial prize sum. So even though the jackpot will be relatively lower soon after someone wins it, it will still not start from zero.

Some of them do. But most progressive slots will not offer free spins, given that a free spin will not contribute to the jackpot prize pool, which means the casino or slot developer will need to cover that cost. Even in the unlikely case of a progressive slot offering free spins, these will usually not be qualified to win the jackpot.

Because the prizes may be worth millions, and the jackpot gets bigger as time goes by, frequent wins would not enable casinos and software providers to cover the costs, and they will not allow the jackpots to grow to significant sums. Therefore, the odds of winning a jackpot on progressive slots are not huge. However besides the jackpot, progressive slots also offer other prizes with better odds.

The RTP (Return to Player) is the portion of wagers paid back to players as winnings over time. Although progressive slots feature significantly larger prizes, all jackpots are derived from the wagers placed. Therefore progressive slots RTPs vary and would not be categorically different from other online slots.

Not very often, progressive slots are rarely offered for free as real money wagers must contribute to the jackpot prize pool.

At the time of writing this page, the biggest ever online jackpot was paid in 2018 to an anonymous player. It was won on Microgaming's Mega Moolah, with the whopping sum of €18,915,721 (over £16 million) paid.

If you win a progressive jackpot slot, winnings will be paid by the casino operator in case it's a local or network jackpot, or by the software provider if it is a jackpot prize tied to a specific game or series of progressive slot titles. Usually, jackpots will be paid by a lump sum, however in some cases jackpots are paid in instalments. Check the game's Terms & Conditions for more information.

There is no tax on gambling winnings in Ireland. However, if you win a jackpot or any other prize in another country, you may be liable to pay tax on your winnings, even if you are a Irish resident. It is therefore always strongly recommended to check the tax rules at your jurisdiction.

More Progressive Slots Tips

What Type of Slot Player Should You Be in 2018?
What Type of Slot Player Should You Be in 2018?
From cautious low-risk players to those betting big in the hope of a huge payout, there are distinct...
Top 7 Best New Online Casino Games 2018
Top 7 Best New Online Casino Games 2018
We know you're looking forward to game releases planned for later this year but don't forget the awe...
Top 5 Best Virtual Reality Casino Games
Top 5 Best Virtual Reality Casino Games
Technology: it’s a wonderful thing. More than a decade ago, innovations in superfast broadband and t...
Top 10 Free Casino Games
Top 10 Free Casino Games
Prior to parting with your hard-earned cash, it really does make sense to get to know the litany of...
Auto Spin Slots with the Best Odds of Winning
Auto Spin Slots with the Best Odds of Winning
Many online slots now offer a function called Auto Spin, or Auto Play, which is normally easy to fin...
Top 5 Biggest Progressive Slot Jackpots Available Now
Top 5 Biggest Progressive Slot Jackpots Available Now
If you like your gaming low risk but with the potential for high reward, then progressive jackpots a...

Contributors

Contributors

Hi, I'm Lee James Gwilliam

"With over 10 years as a poker player and 5 in the casino industry I’m here to share my experience and passion."

Interests
  • Poker
  • Online Slots
  • Casino

Reviewer since February 2016

×