Biggest Slot Machine Wins of All Time

Game supplier Games Global documented the largest-ever slot machine mega win on one of their online slots, Wheel of Wishes: WowPot!. The win was €38,461,200.95 (about $42.09 million at the time) in 2023. 

Here, you’ll see the biggest land-based and online slot machine wins, along with the jackpot structures that made those enormous totals possible. 

The jackpots you’re about to see are all real, documented payouts, reported by the game developer or a trusted news outlet. 

Jump to:

• Biggest Slot Machine Wins
• Wins Story by Story
• Why Progressive Jackpots Reach These Numbers
• Online Records vs. Land-Based Records
• Ranked: Biggest Slot Machine Wins
• The Odds Behind a Record Jackpot
• Where the Next Big Win Could Come From
• FAQs

Biggest Slot Machine Wins

• $42.09 million (€38,461,200.95): Wheel of Wishes: WowPot!, online
• $39,713,982.25: Megabucks at Excalibur, land-based
• $34,955,489.56: Megabucks at Desert Inn, land-based
• $33,000,563: Megabucks at Terrible’s Rail City, land-based
• $27,582,539.48: Megabucks at Palace Station, land-based
• $23.49 million (€19,430,723.60): Absolootly Mad: Mega Moolah, online
• $22,621,229: Megabucks at Bally’s, land-based
• $21.96 million (€18,915,872.81): Mega Moolah at Grand Mondial, online
• $21,346,937: Megabucks at Caesars Palace, land-based 
• $21,147,947: Megabucks at Cannery, land-based

Biggest Slot Machine Wins, Story by Story

Small wagers can meet enormous prize pools when slots share a progressive jackpot across a network – and we know that from our own SlotsLV Big Winners.

Many of the players below hit the biggest jackpots ever won on a whim while playing on modest stakes, though public records don’t disclose every winning bet. 

€38,461,200.95: Wheel of Wishes: WowPot!

On December 20, 2023, an anonymous player hit the WowPot! jackpot on Wheel of Wishes online for €38,461,200.95, equivalent to about $42.09 million at the time.

Games Global, the gaming studio behind Wheel of Wishes, made the announcement in January 2024. 

The supplier did not name the casino or disclose the winning stake. What makes this payout remarkable is that it surpassed the network’s previous online record of €19.4 million.

$39,713,982.25: Megabucks at Excalibur 

On March 21, 2003, a 25-year-old software engineer from Los Angeles won $39,713,982.25 on Megabucks at Excalibur in Las Vegas. Guinness World Records documented it as the biggest-ever slot jackpot win at the time, though Wheel of Wishes surpassed it 20 years later. 

To be eligible for the Megabucks progressive jackpot, you must bet the $3 maximum bet. The anonymous winner had already played about $100 when suddenly, the symbols lined up and he won over $39 million. He chose to receive his payout via 25 annual checks for $1.5 million.

$34,955,489.56: Megabucks at Desert Inn

The Las Vegas Sun news outlet reported that on January 26, 2000, a 37-year-old cocktail waitress named Cynthia Jay landed a jackpot of $34,955,489.56 at the Desert Inn in Las Vegas. 

She started with her usual $21, which didn’t yield any major wins. Just as she was about to walk away, she inserted another $6 and won the jackpot. Her total investment was $27. You must bet the maximum $3 to be eligible for the Megabucks jackpot. 

$33,000,563: Megabucks at Terrible’s Rail City

38-year-old Rachael Renee Romanick, a slot player from Reno, Nevada, hit the $33,000,563 jackpot at Terrible’s Rail City casino in Nevada. 

Talking to the Las Vegas Sun newspaper, Romanick told her friend on April 12, 2009, that she wanted to stay home for the night. Her friend insisted they go out and gamble at Rail City. She agreed, and that was the day she made jackpot history. 

Megabucks requires the maximum $3 bet to win the jackpot. Romanick states she had been playing for about 10 minutes when she hit it. 

Why Progressive Jackpots Reach These Numbers

Progressive jackpots are a shared prize pool, where portions of every player’s wager are added to the pot. The total keeps growing until one player wins it. Then, the casino resets the jackpot with a seed amount, and it begins to grow again. 

The jackpot size in progressive jackpot slots depends on the size of the network. 

A standalone progressive builds its pool from players’ bets on one machine.

A local linked progressive combines contributions from several machines within one casino or operator. 

A wide-area progressive collects contributions across participating casinos throughout a state or an online network. Megabucks falls into that category, which is why it claims so many big slot winners. 

Online Records vs. Land-Based Casino Records

Wheel of Wishes, the slot that produced the biggest slot win to date ($42.09 million) in 2023, is an online slot. 

Guinness lists the land-based record as $39,713,982.25, won on Megabucks at Excalibur in 2003. 

While both jackpot types can grow incredibly quickly, online and land-based wins fall under separate record categories because they use different gaming systems. 

Online pools collect wagers across participating sites, while land-based jackpot pools link physical machines, sometimes statewide. 

Ranked: Biggest Slot Machine Wins

The table below ranks the biggest jackpots ever won in slots by dollar amount. 

Rank	Amount	Slot game	Online / land-based	Year
1	$42.09 million (€38,461,200)	Wheel of Wishes: WowPot!	Online	2023
2	$39,713,982.25	Megabucks, Excalibur	Land-based	2003
3	$34,955,489.56	Megabucks, Desert Inn	Land-based	2000
4	$33,000,563	Megabucks, Terrible’s Rail City	Land-based	2009
5	$27,582,539.48	Megabucks, Palace Station	Land-based	1998
6	$23.49 million (€19,430,723.60)	Absolootly Mad: Mega Moolah	Online	2021
7	$22,621,229	Megabucks, Bally’s	Land-based	2002
8	$21.96 million (€18,915,872.81)	Mega Moolah, Grand Mondial	Online	2018
9	$21,346,937	Megabucks, Caesars Palace	Land-based	1999
10	$21,147,947	Megabucks, Cannery	Land-based	2005

The Odds Behind a Record Jackpot

Record jackpots are exceptionally rare by design. Many experts cite an estimate of about 1 in 49.8 million for a qualifying Megabucks top-prize spin. The odds vary by game, so this is not a universal progressive-jackpot probability.

While it’s easy to believe a jackpot is “due” after a long wait between major wins, the reality is that each spin is resolved independently of the previous one. The time since the last big win has no bearing on the results of the next spin. 

The chances of winning a jackpot are built into the game’s design. They are not related to the time of day, the length of your session, or the timing of your bets. 

If you choose to play a progressive jackpot slot, set a budget you can afford to lose. High volatility means there may be long dry spells, and playing for longer does not make a jackpot more likely on the next spin.

See our guide for more tips on how to hit a jackpot on slots. 

Where the Next Big Win Could Come From

Each casino-winner record win you see here came from a pooled progressive jackpot connected to a network of games that only one qualifying spin can claim. Several winners hit those prizes on ordinary stakes. 

While the payouts are real, the odds of winning one are long, and just because players won the jackpot in the past doesn’t predict when the next one will strike. 

For a different jackpot format, Hot Drop Jackpots at SlotsLV Casino also grow from a shared pool, with timed Hourly and Daily tiers plus an untimed Epic progressive. None guarantees a win for an individual player. 

The jackpot amount changes with the number of players and contributing bets, so keep your budget tied to what you can afford to spend.

FAQs

What is the biggest slot machine win ever?

The biggest-ever slot machine win is €38,461,200.95, or about $42.09 million at the time. It came from the online Wheel of Wishes slot in December of 2023. Games Global announced the win but didn’t disclose the casino or stake.

Which slot machine has paid out the most money?

Wheel of Wishes is the game that paid out the largest individual jackpot. However, Megabucks accounts for the vast majority of the biggest jackpots ever won. Both use linked progressive networks. Portions of wagers from all players across all participating games contribute to one huge shared pot.  

Did someone really win $42 million on a slot machine?

In 2016, U.S. slot player Katrina Bookman reported a $42.9 million win. Resorts World Casino in New York claimed the screen display showing the number was a malfunction, which regulators confirmed. The casino said her actual balance was $2.25 and offered her a steak dinner instead. 

How are multi-million dollar slot jackpots paid out?

Multi-million-dollar slot jackpots may be paid as one lump sum or in annual installments, depending on the game, operator and local rules. Taxes may apply, and the exact treatment varies by location.

What are the odds of hitting a progressive jackpot?

The odds depend on the game. One estimate puts a Megabucks top jackpot at about 1 in 49.8 million per qualifying spin, but other progressive slots have different probabilities. A jackpot is never due just because it has not paid out recently.

What is the biggest online slot win?

The biggest confirmed online slot win is €38,461,200.95 on Wheel of Wishes, won on December 20, 2023, and also the largest slot win in general. Games Global, the game supplier of Wheel of Wishes, announced the payout in January of 2024. The announcement didn’t disclose the stake.

Can you still win a jackpot that size today?

Yes, it’s still possible. Networked progressive jackpots still produce seven- and eight-figure wins. That said, no one is guaranteed to win the jackpot.