Online Jackpot Slots

In this modern age, the world of casinos, slots, and gambling has quickly transformed to meet you where it is convenient—and what is more convenient than playing slots from the comfort of your own home? With the advent of online spaces that let you wager regular slots, a combination game has emerged—jackpot slots. Put simply, a jackpot is the large cash reward you win from slot machines, and there can be many different kinds—most notably, the progressive jackpot slots. 

These slots allow you to win big, perhaps as big as seven figures, even on the smaller wagers. While you can still hit the jackpot on regular slots, this is typically at a cap amount—meaning there is usually a fixed upper limit to how much someone can win at the regular slots. With jackpot slots, as more people join in and place their bets, the winnings grow, with no upper cap on how much can be won. The game's lucrative nature draws in various players who are excited to win big rewards, placing bets that go up to the millions each week.

Best Jackpot Slots Casino to Play

How Do Jackpot Slots Work?

Before we delve into how jackpot slots can differ from each other, it is absolutely essential to understand how these machines work. Let’s start with the basics—the jackpot. This is the cash reward that you can win at a casino or online game when you hit the winning combination.

This understanding is crucial for every person partaking in the jackpot slots to know what decisions are the smartest to make when playing. For some kinds of slot games, the jackpot is collected through crowdfunding—meaning the total amount is collected through the wagers placed by all the players—which could cover a particular casino, region, or even the entire world. When all the wagers are placed, the slots spin and the lucky winner can win cash prizes that go up to the millions.

Different Kinds of Jackpot Slots

Now that we understand what a jackpot is and how the slots typically work, the next step is to understand the various types of jackpot slots. The next few headings explain these slots and how they work in detail.

What Are Progressive Jackpot Slots

Progressive Jackpot Slots are the infamous slot machines that often steal the show and lead to rewards that make headlines. The basic idea behind these kinds of slots is that every time a player makes a bet, a percentage of the bet goes toward a pool for the giant cash prize. The relative popularity of this kind of game works in its favor, resulting in many bets a day and a massive final cash prize. While this can seem exciting, the only downside is that this game's immense popularity makes it harder to hit the jackpot across a network that could be regional or even international.

How Do Fixed Jackpots Work

Fixed Jackpots (also known as non-progressive jackpots) are the regular slots you see in best casinos and online games. While you can still win huge prizes by placing wagers on these slots, the upper limit of the prize that you can win has already been decided. Theoretically, even if you were to have more people placing wagers, the prize amount will not change because there is a limit to the total cash prize.

Unlike progressive slots, no matter how much time there is between jackpots, the prize money will not change, and the amount has usually been fixed, e.g., a certain amount of money for certain combinations at the slot.

Understanding Must Drop Jackpots

A major disadvantage of progressive jackpot slots is that there can sometimes be so much time between jackpots dropping that the amount gets too big, making it harder and harder to win. An alternative to this is the newly emerging must drop jackpots.

These progressive slot rewards have a unique condition—the jackpot must be hit before the total cash reaches a certain amount, perhaps USD 1,500. In this way, if more people were to join the slot with a jackpot, they can hit the condition faster, meaning there will be more frequent jackpot drops for more people, albeit ones with smaller amounts.

How Local Jackpots Function

Local Jackpots work just like progressive jackpot slots. The only catch is, the game is localized—this means that the progressing value of the jackpot can only increase because of wagers at that particular casino. While this varies from one casino to the next, there will most likely be up to ten games collecting bets for the slot with a jackpot. This connects in an interesting way with the luck of the game—the more the games, the more the money accumulated.

However, there is a catch: the bigger the jackpot, the harder it will be to hit the winning spin. So even if games at two casinos may be exactly the same, the jackpot that you can win can vary drastically from one to the other because the kind, type, and number of bets will invariably differ between both casinos.

Network Jackpots and How They Work

If what you’re looking for in a game is the chance to win the biggest prize possible, you will want to look for a network jackpot to spin the wheel of luck on. The method to this is simple—different players across different casinos (most often from the same jackpot slot provider) will often play for the same jackpot.

This means that any one of them can hit the jackpot should they get the right combination at the free slot with the jackpot. The potential payout for hitting the jackpot can be substantial, but at the same time, it can become harder to hit the right combination to result in getting the jackpot.

Hitting Multiple Jackpot Slots

Some jackpot slot games, such as Mega Moolah, will allow the player to have the chance to win multiple jackpots. This is a lucrative deal from the game—the game gives players chances to place bets that can give them a shot at winning multiple jackpots at the same time. For example, game developers may offer their players the chance to play a ‘bonus’ wheel jackpot, which may even be triggered at random by the game developers.

What Are Jackpot Slot Bonuses

When playing progressive slots in online gamesmultipliers and bonuses can become your best friend. This in-game bonus can help increase your chances of winning or increase the amount you can potentially win. Multipliers are available in most games, but the most commonly found ones can be seen in free spins. Others may be wild multipliers, meaning they can seriously boost the reward to huge amounts.

Just as progressive jackpots have a place in this game, so do progressive multipliers—getting them can mean that each time you do a specific action, the multiplier progressively increases in value. Finally, bet multipliers can be found by hitting a pre-determined number of scatter symbols or hitting more symbols than what was initially required to get a bonus. 

Bonuses are an essential part of the jackpot slot world, allowing users to get extra rewards and benefits and taking the stakes of the game all the way up to the exciting headline-making jackpots all players want a chance to win. There is no set rule for how often bonuses are triggered or what they will be, as this differs from one provider to the next. However, most of them include an element of free spinsmultipliersre-spins, or a spin on the ‘wheel of fortune’.

Top 5 Jackpot Slots

Now that we know everything about how the gameplay works, let's look at some of the best progressive jackpot slot games and non-progressive jackpot games and their features.

Mega Moolah Jackpot Slot

Mega Moolah is a jackpot slot game created by Microgaming, which features progressive jackpots of many forms—mini, minor, major, and mega rewards, the last of which starts at one million pounds. The current highest amount won in a jackpot was collected through this game. Players of this game can also take advantage of free spins and other bonus features, along with chances to win large amounts of money on the four jackpots.

Play Mega Moolah Slot for free.

Mega Fortune Jackpot Slot

Mega Fortune is an online casino game by NetEnt, which also boasts some of the biggest wins by players, along with its innovative slots, exciting prizes, and engaging and dynamic graphics. What sets this game apart from some of the rest is the chance to win huge rewards at the bonus games, including the Mega Fortune Wheel, a set of three wheels that can lead a player straight to the mega reward. It also utilizes various wild symbols to astronomically increase rewards. Mega Fortune features three jackpots: the rapid jackpot, the major jackpot, and the mega jackpot.

Play Mega Fortune Slot for free.

Starburst Jackpot Slot

As one of the most recognizable online games from Net Entertainment, Starburst continues to dazzle players with its valuable gemstone-themed interface. The game is also medium variance. Even though it happens not to feature in-app bonus features, it continues to be one of the top games played by users. 

Play Starburst Slot for free.

Book of Ra Deluxe Jackpot Slot

Another game from Novomatic focused around Norse mythology is known as Book of Ra deluxe. This online game, in the jackpot edition, features three (mini, midi, and mega) jackpots, which hit rewards of hundreds, thousands, and millions of euros, respectively. The game has a substantial potential for wins and features excellently designed graphics and mobile-friendly gameplay.

Play Book of Ra Deluxe Slot for free.

Immortal Romance Jackpot Slot

Standing out as an innovative spin on the traditional slot game, Immortal Romance from Microgaming features engaging characters and a fascinating storyline that is perhaps made more exciting with the presence of a fixed jackpot of a huge 3,645,000 coins. It also lets users win multipliers in bonus rounds, and gives them a better shot of hitting the jackpot, even if it's not the progressive kind. 

Play Immortal Romance Slot for free.

Megabucks Jackpot Slot

Mehabucks is probably the most famous online slot in Las Vegas, when it comes to online jackpots. With this online slot you can win million of dollars. There is not an online version of Megabucks, but, in the US online casinos, this game can be played everywhere.

Check out the Megabucks Slot review.

Other Jackpot Slots

Aside from some of these popular games, there is a range of new and emerging slot games coming out every now and then, with each one bringing expert graphic designing, artwork, and storytelling to the world of fixed and progressive slots. However, if you are looking to start playing a new jackpot slot game, you should ensure that the game is legit and that there is a chance of a decent return on the amount you're investing from your budget.

Jackpot Sizes

Jackpot Game

Maximum Jackpots (€)


Mega Moolah



Mega Fortune



Jackpot Giant



Arabian Nights



Joker Millions



Hall of Gods



Jackpot Slot Providers

For people around the world, the following game developers have created some of the most influential games whose names you might recognize.

Microgaming Jackpot Slots

One of the oldest names in the business, Microgaming has a reputation of helping people win huge jackpots that are far into the millions. Thanks to the success of games such as Mega Moolah, Microgaming has broken records around jackpot wins and has launched various other games, such as spin-offs of Mega Moolah, Major Millions, and Treasure Nile. Microgaming has hit 6,650 wins in the last 11 years and has paid out a massive 687.4 million dollars to jackpot winners around the globe. 

Check out all the Microgaming slots.

RTG Jackpot Slots

Real Time Gaming or RTG studios is a game developer also working in the casino space. Some of their notable games include Aztec’s Millions, Jackpot Piñatas, and Shopping Spree. Since 2009, they have recorded 5,700 jackpot wins, and paid out a total of 46.7 million dollars.

Check out all the RTG slots

Netent Jackpot Slots

NetEnt (or Net Entertainment) is another major name in the online casino business that has been making cutting-edge gaming content for decades now. Over this time, they have released numerous games, including Mega FortuneHall of GodsCosmic Fortune, and Arabian Nights.

Check out all the Netent slots

Yggdrasil Jackpot Slots

Yggdrasil is an online jackpot slot provider whose name is inspired by the Old Norse mythology of a mysterious mythical tree with the power to connect the realms. This provider is well known in the gaming space for their excellent design and gameplay and features slots with a jackpot such as Joker MillionsEmpire Fortune, Jackpot Riders, and Ozwin’s jackpots.

Check out all the Yggdrasil slots

How to Win the Jackpot

Jackpots, like any and all casino slots, are triggered randomly. Although there is strategy involved in choosing the right kind of place to bet at, at the end of the day, winning a jackpot is majorly based on chance. This is because all legitimate jackpot slot providers use something called a random number generator to select a particular combination at complete random to drop the jackpot. Even though some trackers claim they can predict which way the jackpot will go based on previous records, the best they can do is create an estimate or prediction. The final drop will always be random.

There isn’t a cheat code you can use to win, but there are certain ways of budgetingselecting slots, and making financial decisions that can help you pave the path towards larger jackpot wins. So the question arises, is this all just dumb luck? Is there no way you can increase your chances? In fact, there are certain measures you can take to improve the possibility of you triggering the jackpot, where jackpot trackers come in handy in understanding the timing of playing the slots. The more the prize has accumulated, the more chances there are that it will drop, so that is an excellent place to start. 

It will always help to know what you’re up against, so go in knowing important information about the game, such as how big the jackpot gets on average, the volatility (a measure of how frequent payouts are, how much amount has been paid out, and how risky the game is to play), and the Return to Player value or RTP (to measure how much any player could potentially lose by taking part in the jackpot)

Largest Jackpots Ever

Jackpots often find their way to the mainstream news channels because of the enormous amounts that people can win simply because of the principles of progressive jackpot slots. Some of the biggest jackpots ever hit were seven to eight figures—the largest of all being around 18.9 million euros on a game of Mega Moolah, followed by 17.86 million euros on Mega Fortune, and another 11.7 million euros on a game of Mega Fortune.

As progressive slots are played more and more commonly, these jackpots are becoming bigger and bigger. In the last decade alone, there have been eleven jackpots paid over the threshold of ten million dollars, and they are only bound to grow. As more and more gaming platforms provide space for large-scale jackpot accumulation, there is no doubt we'll see more and more multi-million cash prizes in the future.

Largest jackpot won with slots in the us

The highest jackpot in the US, has been won at the Excalibur hotel casino from a 25 years old software engineers from Los Angeles. 

The game he played was Megabucks and he won the incredible amount of $39,713,982.25 - the biggest prize in history. Apparently, he won this amount of money by playing this slot machine with only $100 in his pockets. For sure, one of the luckiest (and richest) players in history.

How to Claim My Jackpot

Many players may not think of this, but hitting and winning the jackpot is not the end of the story for you. If you happen to win the jackpot, the next step is to claim it. The first and foremost thing you should do is to recheck everything to make sure you did, in fact, win what you think you won—you may want to go over all the details, collect screenshots, re-read the total amount, etc. Once you are absolutely sure that you won, you will have to undergo the process to claim the win. This includes a number of steps, the first of which is verification.

The casino that you played at will have to ensure that no cheating or fraud was happening that resulted in a win, so they will also verify your win and make sure everything was done legitimately. This is also why it is always recommended to use a valid debit card and your full name while you play to avoid hassle later on. In most cases, the casino reaches out to the winner using the phone number provided and may ask for an interview for their social media.

Now that verification is all done, the next step will be the payout. This is where the casino’s rules come into play. For some platforms such as Microgaming ones, you will receive the entire amount in your bank account in a certain amount of time, e.g., two weeks. For others, you may have to rely on monthly or weekly withdrawals, which means while you still get your total winnings, you may receive them over the course of months or even years. This makes reading the details of what casinos offer even more important, and something you should do before placing a wager on any of their jackpots. Check out these games with some free spins on us!

How to Pick a Good Jackpot Slot

There are a lot of factors to consider before you decide to play a particular jackpot game. For example, you should consider what your total jackpot budget is for that gameplay time. It is also a good idea to consider what exactly you’re aiming for in terms of rewards. For example, playing for a mega reward might seem like a smart idea, but there is a greater risk you will lose your money because there are probably more people trying to win that jackpot.

Other than this, factor in information about jackpot slots that you can gather online—this can include averages, the total amount that has been collected right now, and how often the jackpot is triggered to get a better idea of when the right time is to play on your favorite jackpot slot.

Here are some quick tips you can use to make sound decisions about choosing your next slot game:

  • Look for bonus features: as the world of online jackpot slot games grows, each game offers its players more and more features that can give them a push in the game. Bonus games, re-spins, wilds, multipliers, etc. will all work to make your gaming experience all the more rewarding.
  • Consider the jackpot: as you look into the game, research further into the kind of jackpot it offers. Is it progressive, fixed, spread over a network, or localized? All of these factors can change the kind of returns you can get while playing the game.
  • Look into RTP and volatility: RTP and variance can both impact your spending in the game, so it is a smart idea to consider how close the game is to your expectations and your overall budget. Variance or volatility helps you understand how much risk there is in playing the game, which can be essential depending on your budget. High variance indicates high risk, but also a chance at a huge reward—in contrast, low variance indicates low risk, but smaller rewards. RTP helps you understand what the chances are that you will be returned the money throughout the gameplay—high RTP means there's a greater chance you will make a good return on your money, whereas low RTP can indicate a smaller chance of returns.
  • The tie-ins excite you: if you're putting your money into something, it should end up being something that excites you and something you're passionate about. Let's say you're a big fan of corgis—why not go for a game that features what you love? Of course, it shouldn't be all you think about when you're deciding, but it can be an important factor.

At the end of the day, the right jackpot slot game for you is out there, but in order to find it at the right time, you need to know more about what you are looking for from the game itself.

Tips for Jackpot Slots

  • Always read the fine print from the jackpot slot game for details about the casino’s rules before you start playing. This will prepare you for any potential bumps down the road and will also ensure that you know exactly how to claim rewards.
  • Stick to your self-assigned budget for the jackpot: do not go in without any strategy. It's always best to make a strategic decision about what your budget will be for each game and stick to it to reduce the chances of a major loss.
  • Make careful decisions about which slot to play in: big jackpots may be exciting, but they also have lower chances of being hit because of the number of people placing their wagers. You have to strategically work to find slots that have a sizeable jackpot and are also feasible.
  • Use the demo mode to learn about how the game is played before jumping into the live gameplay without any background knowledge.
  • Utilize bonuses and multipliers wherever: These in-game benefits can help you hit the jackpot faster and increase your chances of taking home a bigger reward.
  • Do your research well beforehand. Jackpot tracking sites and other informational research can really help you as you make your jackpot strategy for the slot you are playing.

Other Progressive Games

Winning some progressive jackpots it's not all about online slots.

In the world of online gambling, there are several games offering progressive jackpots to win. Worth mentioning these amount are usually lower compared to the ones can be win with slots, but still interesting. Let's have a look at these games and how to play them.

Progressive Blackjack

Blackjack is one of the best alternatives to win a progressive jackpot. This game can be found only on the web and not at the brick-and-mortar casinos.

It's a fun variant of the original game, and a jackpot between €120.000 and €140.000 can be won. This amount won't be higher than this, due to the limited popularity of this game.

Progressive Video Poker

This is the closest variant to the online jackpot slots. They work in the same way: hit the highest combination to enter the bonus round and get your chance to win the huge jackpot.

This is a must to try for the video poker lovers, as there are chances to win an higher amount of money. The jackpots can be anything between €15.000 to €50.000 in most of the cases.

Progressive Caribbean Stud Poker

Even the poker lovers will be able to find some good jackpots out there. This game gives the opportunity to win a big bag of coins, due to the large prize, usually between €50.000 and €80.000 - not so bad for a poker game, eh?

A part of that, Caribbean Stud Poker is very fun, and playing with other people make the time flying. Try this game yourself, to get the most amazing experience with a card-based game with jackpot.

Progressive Keno

If you are a fan of lotteries, this progressive Keno is something you must try!

Yes, prizes a bit lower than the classic lottery, but there are more chances to win. Usually the prize for the progressive Keno, is something between €100.000 and €250.000. Very high compared to the other, except the jackpot slots, but easier to play and instant.

Progressive Bingo

Classic Bingo has never been so fun! Playing Bingo with a progressive jackpot add a layer of adrenaline to it. This is a completely casual game, where luck decides the 99% of the game outcome.

The amount of the jackpot depends by the amount of people involved in playing this game, and can be between €30.000 up to €300.000. Not bad, for one of the oldest casino games out there, right?

Final Words

The most fascinating and enticing aspect of playing jackpot slot games has always been the element of risk—you won't always get the money that you have put in back, but you might just get a prize that will make it all worth it in the end. Risk doesn't make or break it entirely, though.

As humans, we are always drawn to the idea of playing with what we understand of luck, and so it is only natural we wonder how likely we are to win huge jackpots worth millions. At the end of the day, the jackpot will have an element of reliance on luck and randomness, and it is precisely that which makes the game so challenging, unique, and interesting. So while we cannot ever know exactly what will happen in a jackpot, we can always make smart decisions that help improve our chances of becoming the big winner.

Best Jackpot Slots FAQ

How to win a progressive jackpot?

To win a progressive jackpot, you should understand when a game is ready to pay. To understand this, you need to start playing slowly, gradually increasing the stake.

What are progressive jackpots?

You may not notice the difference between progressive and non-progressive jackpots at first glance, since most of the gameplay and the aesthetics of both slots can be similar. However, the major difference between the two can be understood when we look at the jackpot itself. When you’re playing a non-progressive jackpot slot, the reward you receive is fixed. For example, if you hit three sevens, you may get a cash reward of USD 1,000. On the other hand, if you are playing a progressive slot, there is no fixed amount. Based on the number of people playing the game and the amount of money being used as wagers, the jackpot will progressively keep increasing until the jackpot drops, which means it can go up to six or seven figures.

What are fixed jackpots?

Fixed jackpots are rewards you can win from non-progressive slots with jackpots, also known as regular slots. These have a fixed reward amount reserved for certain specific combinations and bonuses and are not dependent on the number of people playing or the pool of money collected per se. Instead, there is an upper limit on what can be won.

What’s the most you can win from a jackpot slot?

The incredibly dynamic nature of progressive jackpot slots means the upper limit for wins changes every single game—meaning there is no fixed rule for how much you can win. However, to this date, the highest amount won by anyone playing jackpots were won in 2018 by an anonymous user. This user managed to win a whopping €18,915,872.81 (around $21.7 million) by scoring Mega Moolah’s Mega Jackpot at the Grand Mondial Online Casino.

Can I use bonuses on jackpot slots?

Yes! In most slots with jackpots, you can win bonus rounds and features that help you get an extra nudge towards the jackpot. Bonuses are most often earned by making extra special combinations and can result in free spins, re-spins, and multipliers being won by the player.

This page was written in 2015 and is now maintained by Daniel Hardman. Should you have any questions or see any discrepancies on this page, feel free to reach out to him. The casino list at the beginning of the page is revised each month, to ensure we only offer the best casino sites with roulette to our readers. Let's have a look at some handpicked references you may find interesting.