Top 10 Biggest Slot Machine Wins of All Time

Slot machines are among the most popular games at online casinos. They provide players with the traditional experience at home, similar to that found at land-based casinos. You can find slot machines at casinos based on different themes, features and bonuses. 

Slots will always be one of the primary attractions in casino lobbies, and they have provided players with big wins over the years. I had a lot of fun writing this, so come with me as I take you through the top 10 biggest slot machine wins of all time below.

1. $39.7 million - Excalibur Casino, Las Vegas (2003) 

Over 20 years ago, one extremely lucky person went home with a staggering $39.7 million on the Megabucks slot machine. The anonymous software engineer started with just $100 and went on to win the monumental jackpot. Even after over two decades, this win has yet to be beaten! 

2. $34.9 million - Desert Inn Casino, Las Vegas (2000) 

The early 2000s appear to be a popular period for gargantuan slot machine wins, and it was at the turn of the century when Cynthia Jay-Brennan took home almost $35 million. Once again, the Megabucks slot was the provider of this huge jackpot. Vegas was the location again, so in my mind, it makes sense why so many players head out to the desert to chance their luck. 

3. $27.5 million - Palace Station Resort, Las Vegas (1998)

Yep, you guessed it, it’s Las Vegas casinos again that provided yet another one of the biggest slot machine wins in history. Of course, it was on the Megabucks slot again, too. Although the $27.5 million figure isn’t as large as the top two, I wouldn’t grumble about winning that kind of money!

4. $24 million - PAF online casino, Finland (2013)

Although this one was paid out in Euros (€17.8 million to be exact), a Swedish player ended up netting a beautiful win worth $24 million on the Mega Fortune slot by NetEnt at Finnish online casino PAF in 2013. The craziest thing about this win was that he only had to wager €0.25 to secure it! 

5. $23.6 million - Napoleon Sports & Casino (2021)

Having staked just €15, a Belgian player netted $23.6 million on the Absolootly Mad: Mega Moolah slot machine by Microgaming. The 5-reel slot served up a juicy win just a few years ago, with the Alice in Wonderland-themed game truly allowing the unnamed Belgian to fall down the rabbit hole!

6. $23.5 million - Grand Mondial Casino (2018)

In another online casino win in September 2018, an anonymous player won $23.5 million at the Grand Mondial Casino. They won the sizeable jackpot on the Mega Moolah progressive jackpot slot machine. 

7. $22.6 million - Bally’s Casino, Las Vegas (2002)

Johanna Heundl from California secured a huge $22.6 million win on the Megabucks slot back in 2002. After spending just $170, she secured the jackpot. She initially believed to have won $2 million but later realised another $20 million was on the way! What a treat. 

8. $22.5 million - Might of Ra (2022) 

A more recent win and one fitting the modern conforms of society; Twitch streamer Trainwreck boasted an astonishing $22.5 million while playing the Might of Ra slot game. It was a world record for a non-jackpot win on online slots, which he won by playing the max bet of $1,000. 

9. $21.3 million - Caesars Palace, Las Vegas (1999)


This list proves that you don't need to stake big to win big! In 1999, a 49-year-old business consultant landed a healthy $21.3 million at Caesars Palace, Las Vegas, after betting a measly $10. I can imagine that just playing at one of the most famous casinos is an experience, but winning that amount of money would have been the cherry on the cake. 

10. $21.1 million - Cannery Casino & Hotel, Las Vegas (2005)

My list concludes with a 2005 win by Elmer Sherwin, who won $21.1 million on the Megabucks slot. This slot machine is famous for a reason—it pays out big! If this game was perfume, it would be Chanel Number 9. But get this: Sherwin also secured a $4.6 million win 15 years earlier at the Mirage Casino, making this win even more impressive. Share some luck with us, Elmer!

Emma Crossick Contributor

Emma Crossick

Contributor & European Market Expert

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Focused on boosting the online gaming experience for players from all around Europe. Emma's articles bring solid wisdom and tips, she gives her honest opinions and accurate information to improve player safety and their online casino experience.
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