What Is the Most That Someone Has Won on Online Slots?

Players at Irish casinos flock to slot machines to win a mega fortune that will change their lives. Relying heavily on luck, people spin to score jackpots and become winners - an opportunity afforded to the lucky few. 

Slot machines are some of the most played casino games in the United States. They are popular in online gambling as well as offline. Becoming a jackpot winner is a dream held by many. People flock to slot games instead of strategy-based games like video poker and other table games because it relies mainly on only one thing: luck. Defeating the house edge in slots is practically impossible with slot games. In addition, some of the best real money online slots come with bonuses like promotions and free spins. 

Since bagging a jackpot win is a dream for almost everyone, how many jackpot winners are there worldwide? In this article, we will closely examine some of the biggest jackpot wins in history at an online casino. 

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This page is written by
Seánie O'Brien
Seánie O'BrienCasino Adviser
Fact checked by
Rebecca Mackay
Rebecca MackayHead of Content
According to our Editorial Guide

Some win big, while others win really big. So big that they're splashed across national news! In this engaging video from our very own Seánie, casino expert & tipster, he recounts stories of the biggest monumental jackpot wins ever - both online and land-based casinos. From the USA to Europe, these lucky winners have lived out every gambler's dream. So brace yourself because these wins will floor you!

Quick Answer

Here is a quick rundown of what this article is all about.

  1. Our primary slot game recommendations are Mega Moolah, Mega Fortune, and Absolutely Mad Mega Moolah, as these have the highest wins among all slot games. Mega Moolah is the game with the most wins. 
  2. Winners hail from a number of countries, including Belgium, Norway, Finland, the UK, Canada, and the US. Everyone has a chance at online slots. 
  3. Winning at slots needs luck more than anything. Strategy is helpful, but rarely. 
  4. The most someone has won at an online casino is €23.4 million($24 million). The lowest amount recorded on this list is €8.76 million ($8.75 million). Most wins are double figures and are life-changing amounts of money. 
  5. The latest recorded win is from 2021, a total of €23.01 million($23.6 million). 
  6. Other winning sums include €23.01 million ($23.6 million), €19.5 million ($20.1 million), €16.8 million ($17.3 million), €16 million  ($17 million), €11 million ($11.6 million), €9 million ($10 million), and €12.7 million ($13.2 million).

The Most Money Players Have Won On Online Slots

Some were accidents for newbie gamblers, while others were born out of built strategies aimed at winning millions at jackpot slots.

Millions Payout from Absolootely Mad Mega Moolah

Absolootely Mad Mega Moolah has the greatest sum amongst casino jackpot winners. The largest sum won by a player is €23.01 million. A man from Belgium won this at Napoleon Sports and Casino in April of 2021. The man placed a bet of €15 and left with  €23.01 million. Absolootely Mad Mega Moolah is a game adaptation of Alice in Wonderland. This version of the game has 5 reels and a whopping 243 ways to win. The game operates with Microgaming software and has some of the largest payouts in casino history. It has a 92.02% return to player rate, which is a fairly low amount compared to other options.

This lucky Belgian is among the Guinness World Record holders in online casino jackpot wins. His lucky streak has won him many casino wins. Let's see if he has more chances of winning in the future.

Mega Moolah Win from Only 25 Pence

This is another rags-to-riches gambling story. A soldier from the UK became a millionaire by chance in 2013. His name is Jon Heywood. He was a veteran who had returned from Afghanistan, and he happened to play a Mega Moolah slot machine in a Betway online casino based in Canada. As a twist of fate would have it, the slot machine bent to his advantage, and he ended up winning a  €19.5 million jackpot slot, which is worth €12.7 million now.

Unlike many other casino players, Heywood did not attempt to recreate the experience of winning casino jackpots. Mega Moolah has some of the biggest jackpot wins. It has a fairly low return-to-player rate at 88.12%, so the odds are pretty low. The game allows players to place a fairly low bet, amounting to a spectacular sum of cash. The game also offers excellent bonus features. 

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A Large Spin at the NetEnt Mega Fortune

Mega Fortune is a well-established online slot launched in 2008 by NetEnt. It offers eye-watering jackpots boasting large amounts of money. Mega Fortune is a 5-reel slot with 25 individual pay lines. The game offers a 96.6% return-to-player rate. You can bet with a small amount of money to win a highly progressive jackpot. 

This one happened to a man from the country of Finland. The Finnish player preferred to keep his identity anonymous, but his success at a slot game made waves. He turned a 25-cent spin into a whopping €23.4 million at Net Entertainment in 2013. This amounted to €16 million back then and is considered one of the biggest casino wins ever. 

Arabian Nights Winnings in 2011

Arabian Nights is another popular slot game, and the biggest sum that has ever been won in this game is €16.8 million. The game has around 10 pay lines and a return-to-player rate of 95.6%. The game is a classic 5-reel video slot with free spins, multipliers, and bonus features to give you a fair shot at prizes. Anyone can get lucky thanks to the way it is set up. 

It is easy to walk away with a modest sum of money after having a go at the game, provided that you bet a maximum amount every time with the game in auto mode. Generally, the jackpot in this game is 10,000 coins. In this case, however, a Norwegian player walked away a champion with €16.8 million in the bag.

Smaller Wins, Notable Games 

Some games aren't as popular, but they have resulted in huge jackpot wins for some. 

Matamata Gambler Conquers Mega Moolah 

A gambler from New Zealand won the jackpot online at Casinoland. Rawiri Pou is from Matamata and comes from humble beginnings. He won €9 million in 2016. While this is a smaller win than others on the list, it is still notable as €9 million is life-changing. Surprisingly, he advised players to build strategies to win in a game of luck and chance.

Mega Moolah does it Again 

MG from Canada won an  €11 million jackpot at Mega Moolah in 2016. He was the first person to win at Yako Casino and is amongst some of the top winners in the world. 

Hall of Gods Jackpot Win 

An elderly woman from Sweden won €8.4 million in 2012 at the Hall of Gods slot game. She used the prize to pay off all her loans and travel to Thailand with her loved ones.

Major Jackpots Wins in Lotteries and Casinos

Now that we've covered the biggest wins online, let's look at some major wins in real-life casinos. 

2018 Mega Millions Jackpot

Mega Millions is a multi-state lottery with one of the biggest lottery prize pools. You can participate by purchasing a ticket for $2 and filling out five numbers between 1 to 70 and 1 to 25. The more numbers you have correct when the numbers get drawn, the more money you will earn. Every ticket purchase contributes to the overall prize pool creating a gigantic jackpot. 

Mega Millions has broken the billion-dollar jackpot barrier twice in the last decade. Only one of these has ever gone home to a single winner. This win occurred in 2018 when an anonymous ticket holder from South Carolina took home a whopping €1.48 billion. 

Palace Station Las Vegas 

In 1998, an anonymous retired flight attendant won €26.5 million at the Palace Station casino after investing only $300 in the game. The woman was a Las Vegas resident and a recreational player. She received her payout in instalments from the casino, with the first deposit ringing in at €1.06 million. She has received similar instalments for over 24 years. She had previously won €655,554 at the Wheel of Fortune. 

$34.9 Million at Desert Inn Casino

In the 2000s, Cynthia Jay Brennan won a €33.6 million jackpot on 26th January at the Desert Inn Hotel and Casino playing the Megabucks slot machine. She wagered a meagre sum of $21 into the machine to win this spectacular sum.

Brennan was a cocktail waitress before winning the jackpot. She finished her two-week notice and donated significant money to charity from her winnings. A notable recipient is the Free Wheelchair Mission, a cause close to her heart because she was paralyzed after being struck by a drunk driver. 

Brennan's win broke the record set in 1998. Her €33.6 million win was beaten out by a jackpot win close to $40 million just three years later. 

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$39.7 Million at Excalibur Casino

This is the biggest jackpot ever won on a slot machine. The winnings went to a software engineer who tried his luck on a Megabuck slot machine at the Excalibur casino. He spun a few times, ending with a staggering win of €38.5 million (€11 million). Nearly two decades later, this is the highest slot machine payout in history. 

The winnings were paid out over 25 years. His win is special because the odds of hitting the jackpot were almost nil - one in 16.7 million. 

A Record Almost Broken 

In 2016, it seemed like the record was broken by a woman named Katrina Bookman, who hit a €40.7 million ($42.9 million ) jackpot at Resort World Casino. However, the win got nullified as it was declared an error. The maximum payout on the Sphinx slot machine was supposed to only be €6300 ($6500).

The Bottom Line

Online gambling has the potential to make some real money for slot players. It can drastically change many people's lives, as demonstrated by this list. You can reap the rewards anonymously or show off your winnings to the world. 

It seems Mega Moolah gives the best opportunities, so give it your best shot! Other recommendations to increase your chances of winning include:

  1. Checking that you have a stable internet connection.

  2. Clearing out space in your schedule for online gambling.

  3. Registering on licensed sites to safeguard yourself.

  4. Understanding and adhering to legal guidelines concerning gambling.

  5. Building strategies for all games, whether they are card based or otherwise.

  6. Developing creative thinking and logical sensibilities to enhance your experience of the game.


Can I win by playing casino games?

Yes, you can win by playing casino games. The nature of most games is random, which gives you a fairly large chance of overcoming the odds. 

Are online slots legal?

If the casino is legal, the slots are legal. Most online casinos operate in adherence to the law. Every country has its own set of laws for online gambling. Therefore, the legality of any casino depends on where they are based and where you live. When choosing a casino for yourself, check that it has a valid licence to operate legally in its jurisdiction. In addition, check whether your local laws prohibit you from gambling online. Online gambling is rarely prohibited, but it is best to check to avoid any issues.

Are slot jackpots easy to win?

No, they are not. Slot machines are largely based on luck and very little on strategy. The odds of you winning at slots are low as you can’t do anything to manipulate the house edge, let alone defeat it.

What is a paytable?

A paytable is a chart that shows how much you will win on a bet of a certain value for each payline. Every slot machine has a paytable unique to its patterns. It is important to study and understand it before you begin to play; otherwise, you will be very confused.

Casino Mentor

Seánie has plenty of experience in the casino world and enjoys sharing this accumulated knowledge. He offers great tips and tricks for players to enjoy casinos safely.

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Fact-checked by: Rebecca Mackay
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