Biggest Online Casino and Jackpot Winners!

biggest online casino jackpot winners

Every month, the OUSC team highlights and celebrates the biggest online jackpot winners. As September and summer come to a close, let’s look at the top online games and casinos paying out massive prize pools to some lucky individuals.

As October comes around, who knows what fall has in store? Play at our recommended online casinos for a chance to be on this list next month!

Biggest Online Casino Winners of September 2021

September’s jackpot winners stacked some mega cash. One day it could be you featured here! Play at any of the top online casinos below for a chance to win massive progressive slot prizes, and of course, compliments from the OUSC team. Check out all the lucky players below.

Biggest Casino Jackpot Casinos

1 Las Atlantis Logo Play at Las Atlantis BONUS Get 280% up to $14,000 # OF SLOTS 146 READ REVIEW Review Play Now
2 BetOnline Casino Logo Play at BetOnline Casino BONUS Get 100% up to $3,000 # OF SLOTS 281 READ REVIEW Review Play Now
3 Red Dog Casino Logo Play at Red Dog Casino BONUS Get 225% up to $12,250 # OF SLOTS 146 READ REVIEW Review Play Now

Online Casino Jackpot Winners of the Month

Let’s take a look at the biggest real money slot winners of September!

Las Atlantis Casino

Las Atlantis Online Casino Logo

Like the impressive Poseidon, Las Atlantis has some life-changing jackpots—with their enthralling progressive slots running for millions. So, test your trident of luck at the massive pot, and win huge cash prizes.

Highest Progressive Slot Jackpots

Online Casino Jackpot Winner First Place Gold Medal

Jackpot Piñatas Deluxe

Online Casino Jackpot Winner Second Place Silver Medal

Aztec Millions

Online Casino Jackpot Winner Third Place Bronze Medal


RankGame Jackpot
4thShopping Spree II$523,399
5thSpirit of the Inca$255,023
6thJackpot Cleopatra’s Gold$106,621
7thJackpot Cleopatra’s Gold Deluxe$106,621
8thFantasy Mission Force$39,075
9thEagle Shadow Fist$39,075
10thFire Dragon$39,075


BetOnline Casino

BetOnline highlight is the Reels of Wealth, which has become a household name among slot players. Apart from the top pot at this exclusive casino site, we list other big jackpot titles. So, don’t limit yourself, and check out other slot games BetOnline has to offer.  

Highest BetOnline Casino Jackpots

Online Casino Jackpot Winner First Place Gold Medal

Reels of Wealth

Online Casino Jackpot Winner Second Place Silver Medal

Faerie Spells

Online Casino Jackpot Winner Third Place Bronze Medal

Dragon Kings

RankSlot Game Jackpot
4thVegas Keno$78,943.75
5thCharms and Clovers$72,210.66
7thFruit Loot$57,694.42
9thGreedy Goblins$47,823.74
10thMega Gems$28,892.01

Red Dog Casino

red dog casino logo

Red Dog doesn’t disappoint its clientele with its generous slots. Mardi Gras Magic had the most giveaways and also produced the top slot winners. You can also try out some of these entertaining slots for a chance to cash in big.

Top Real Money Slot Winners

Online Casino Jackpot Winner First Place Gold Medal

Nana T.

Mardi Gras Magic

Online Casino Jackpot Winner Second Place Silver Medal

Vince O.

Wild Fire 7S

Online Casino Jackpot Winner Second Place Silver Medal

William K.

Plentiful Treasure

PlayerGame Prize
Joshua M.Plentiful Treasure$349
Arlene L.Achilles Deluxe$276
Kaori V.IC Wins$170
Dre T.Halloween Treasures$148
Franklin F.Aladdin’s Wishes$108
Ayumi N.Mardi Gras Magic$100
Humberto M.Halloween Treasures$80

Biggest Online Casino Jackpots and Slots of September 2021

When it comes to slots, not all are the same, even progressive slot games. Some will bag you thousands, and some will land you that jackpot win worth more than a million bucks, and you’ll easily find yourself in the books of casino history.

These are the top 5 online casino jackpot games with the biggest wins in September. The good thing about these slots is that they keep getting bigger and better. So for those that didn’t have luck in September, you can expect even higher rewards in October.


Jackpot Piñatas

Jackpot Piñatas Deluxe Online Slot Logo

Jackpot Piñatas Deluxe holds the highest progressive jackpot at Las Atlantis Casino, winning $1,917,899. This Mexican-themed slot game is full of colorful features, including wilds, a bonus round, and a massive jackpot that keeps increasing.

Take a swing at this exciting slot game and test your luck for a chance to win the big bucks!


Aztec Millions

Aztecs Millions progressive slot

Just as its name suggests, Aztec Millions lives up to its reputation by having a jackpot often over $1 million. The journey to the ancient Mexican civilization will be worthwhile with favorable returns such as a jackpot win and bonus rounds!



Megasaur Online Slot Logo

Taking you back to the age of dinosaurs, Megasaur by RTG will have you roaring for bigger rewards. The top prize being the $916,371 pot for all players to try their luck. Other features to look forward to are the ten free spins and the Win-Win Bonus feature.


Shopping Spree II

Shopping Spree II Online Slot Logo

SpinLogic Gaming is about to glam up your wardrobe with a shopping experience of a lifetime. So grab your VIP shopping card and get ready to spin the reels of Shopping Spree 2 with rewards such as bonus rounds, multiplier wilds, and a progressive jackpot worth $516,020.


Reels of Wealth

Reels of Wealth Slot Logo

If you want to stack gold and treasure, check out Reels of Wealth.
This Betsoft title has four different jackpots and a double-up round to keep the cash flowing. Right now, the progressive jackpot is up over $300,000. It’s bound to hit sometime. Could you be the next person to take the massive prize?

Play These Progressive Jackpot Games at Las Atlantis Casino and Win Big!

Biggest Online Casino Winners of All Time!

Ask any slot player to tell you their biggest wish, and you’ll hear them say, “It’s to win the jackpot!” However, it all ends up being only a wish for the majority of them. For a select few, whose luck seems decided by the heavens, end up striking gold!

Whether it’s in a lively casino in Vegas or playing online at home, these players were lucky enough to end up with tens of millions of dollars! Here are the six biggest casino wins of all time that will show you it is all possible.

  1. Excalibur Casino in Las Vegas – $39,710,826.36

    The biggest casino jackpot winner in history was a young software engineer who played the Megabucks slot machine at the Excalibur Casino in Vegas and won. It happened way back in 2003, and the lucky winner spent only $100 before hitting the $39.7 million jackpot.
  2. Desert Inn, Las Vegas$35 Million

    Imagine walking into a casino after a tiresome work shift and getting out a millionaire! That’s the story of Cynthia Jay Brennan, who won $35 million at the Desert Inn Casino in 2000. Cynthia was a cocktail waitress who got out of her shift, visited the casino, played the Megabucks slot, and won big. However, a few weeks later, she was involved in a tragic accident that left her paralyzed for months.
  3. Palace Station Casino, Las Vegas – $27.6 Million

    Megabucks once again awards another lucky millionaire, but this time at the Palace Station in Vegas. Less is known about the winner, only that she was a retired flight attendant, spent close to $300, and won the jackpot in 1998.
  4. Finnish poker player playing Mega Fortune$24 million

    Talk about making a fortune! An anonymous poker player from Finland won $24 million by playing Mega Fortune online. So for those who love playing online, know that you can earn millions right on your couch. It gets even better; the player only wagered 25 cents!
  5. A veteran playing Megabuck $21 million

    The story of Elmer Sherwin, a WWII veteran, will leave you in awe. Yes, he did win $21 million playing Megabucks at the Cannery Casino in 2005, but this was his second time. His first jackpot win was in 1989, where he played the Megabucks slot machine at the Mirage Hotel & Casino and won $4.6 million. Elmer won people’s hearts after donating a considerable part of the $21 million to Hurricane Katrina victims.
  6. Mega Moolah$18.2 million

    Mega Moolah has risen to become one of the most popular jackpot slots, with multiple winners taking home millions. One was Jon Heywood, a British soldier who only spent a quarter to win the $18.2 million jackpot. This was life-changing for Jon as he spent some of the money on his father’s medical treatment. 

Stay Tuned for Our Online Casino Winners List Next Month!

Congrats if you took the prize in September! Play with real money at any of these legit online casinos for a chance to be on this list next month. There are so many slots to choose from that offer jackpot opportunities that you have a real chance at winning big!

You can go for the life-changing money at Las Atlantis and BetOnline and win hundreds of thousands, if not millions, of dollars, or you can opt for smaller amounts. It’s up to you, but we all know that hitting the jackpot would feel so good. Play to your heart’s content and see you on next month’s list.

Play for Real Money at Las Atlantis Casino

About the Author
Joanne Thompson

Joanne Thompson - Writer / Editor

Joanne likes to stay on top of her game finding the latest trends on everything online casino related. She enjoys giving our readers a heads up on new casino bonuses and slot games.