Best Big Win Casinos USA 2024

Posted by Cliff Spiller .

Anyone who has ever played the lottery has dreamed of what they would do if they hit all the numbers. The same goes for those who enjoy chasing big win casino games jackpots. Although big casino wins may be few and far between, the opportunity to win a life-changing amount of money is what encourages many players to spin the reels or roll the dice.

This guide will explain the basics of how to win big at the casino, be it brick and mortar or at an online casino, examples of big casino wins throughout history, and where to find the biggest bonuses to help you win big at casino sites.

Best Big Win Casinos Online

If you’re ready to try for some casino big wins, here are the top rated USA online casinos as recommended by the experts at Gamble Online:

Top Rated Online Casino
Welcome Bonus
  • 150 free spins
  • Min. deposit: $25
Payout Speed 1-5 days
  • Rollover: 25x Deposit and Bonus
  • Games: All games except live dealer and craps
  • Min. deposit: $10
  • Max. Cashout: N/A
Payout Speed 15min - 15 days
Welcome Bonus
  • Refer-a-Friend bonus 200% up to $100
  • Min. deposit: $10
Payout Speed 24-48 hours
+ 300 free spins
  • Rollover: 25x
  • Games: All games except progressive slots and scratchcards
  • Min. deposit: $20
  • Max. Cashout: 5x
Payout Speed 48 hours
Welcome Bonus
  • Bitcoin bonus 350% up to $2500
  • Min. deposit: $10
Payout Speed 15min - 10 days

How to Win Big at the Casino

Although most casino games are random, scoring big casino wins can be made easier by learning some key skills. Here are some of the most important things to consider when trying to win big at casino sites:

Learn About House Edge & RTP

Remember, the real money online casino always possesses the house edge in every game you play. The house edge is the average profit that the casino will expect to earn on every wager. Conversely, the return to player (RTP) rate of a game is the average amount of a wager that a player can expect to win back.

Both of these numbers are calculated over thousands of spins or games and are a useful way to determine the likelihood of scoring big casino wins. But remember, the biggest casino big wins are often scored on games with higher house edges, such as slots, rather than on low house edge games, like blackjack or video poker.

Practice Bankroll Management

The best way to win big at the casino is to practice sound and patient casino bankroll management. Don’t go chasing losses or you’ll end up in so deep a financial hole, you’ll never recover. Nobody wants to experience that feeling. Always be aware of your financial situation and seek help if you feel you may have a gambling addiction.

Remember what you learned about house edge above, some games pay the player 97-98% of the time, which means it is possible to make money gambling. However, in the spirit of bankroll management, you also need to know when to say when and walk away from a session with some profits in hand.

Study Your Craft

You wouldn’t start a household project without doing your research and learning the essential skills. The same should go for risking real money on casino games. Study up on how to play blackjack, online poker, and online craps if you want to improve your chances of casino big wins.

Embrace Bonuses

Keeping your wallet flush with cash, credits and free spins casino bonuses is a helpful way to win big at the casino. In an effort to earn your business, online casino operators promote four-to-five figure welcome bonuses to new players in hopes that you create a new account and make a first deposit. What better way for you to win a big casino bonus than to turn your $3,000 deposit into $6,000 via a 100% match welcome bonus.

Casino Big Wins History

Tales of big wins at the casino are similar to those who share stories of finally making a hole-in-one on the golf course. If there isn’t a witness or witnesses, the details get a little fuzzy. Even with internet investigative reports and eyeballs everywhere, details are a little sketchy on the biggest casino wins of all-time, but names like Archie Karas and Kerry Packer pop up on every list after they won $10’s-of-millions in a single night playing a variety of games.

Then there is the story of a gambler from Los Angeles who risked $100 on Excalibur Casino’s Megabucks slot machine and walked away with nearly a $40-million jackpot.

When it comes to online casino big wins, look towards the progressive online slot machines with the name “mega” in the game’s title. Absolutely Mad Mega Moolah paid out more than $23.6-million, Mega Moolah $23.5-million and Mega Fortune $21-million.

Biggest Casino Wins of All Time

With the availability of legal online gambling options in the US and around the world, it’s little wonder that so many big casino wins are now achieved online. Here are some of the biggest jackpots ever achieved by players at a big win casino:

PositionBig Win Casino PayoutWin Big Casino GameCountry of WinYear of Win
1$24 MillionMega Millions SlotFinland 🇫🇮2013
2$23.6 MillionMega Moolah: Absolootly Mad SlotBelgium 🇧🇪2021
3$23.5 MillionMega MoolahUnknown2018
4$17.2 MillionMega MoolahUK 🇬🇧2015
5$16.7 MillionMega MoolahUnknown2020

Big Win Casino Bonuses

In an effort to help you hit big casino wins, operators will offer new players casino bonuses worth thousands of dollars. All you have to do is sign up for a new account, make an initial deposit and the casino will, in most cases, match it dollar-for-dollar. We’ve created this easy-to-read casino bonus table to help guide your research.

Online CasinoBig Win Casino Bonus
Las Atlantis$14,000
El Royale$12,500
Vegas Casino Online$11,000
Roaring 21$10,000
Cherry Jackpot$8,000

Remember, each of these big casino bonuses come with wagering requirements that force the player to bet X-amount of money before a withdrawal request can be processed.



Welcome Bonus

What to Look For in a Big Win Casino

Learning how to win big at the casino not only involves learning the games, but you also need to find the perfect casino for you. Naturally, a history of big casino wins is helpful but that shouldn’t be your only consideration.

The experts at Gamble Online have conducted online casino reviews to provide unbiased and honest recommendations of the top big win casino sites. Here are the main factors you should consider when choosing your new favorite big win casino:

US Players Accepted

In 2024, players have plenty of options when it comes to safe online casino gambling. Unfortunately, some casinos do not accept players in the United States. Rest assured, if a casino has earned our recommendation then you American players can play there.

Range of Banking Options

We highly recommend you check out the casino deposit page before creating an account. You want to find a casino that accepts a range of deposit and withdrawal methods, particularly Bitcoin. Most casinos will accept Visa, Mastercard, and other popular banking methods, but this is not universal.

For big casino wins, you should also check the casino’s policy on withdrawals. Some casinos will only pay out large amounts in small instalments over a longer period of time.

Range of Games

Be sure to look at the casino’s selection of games. For the biggest casino wins, you’ll want to look at their selection of slots, particularly progressive jackpots such as hot drop jackpots.

If you want to win big at casino sites, you will probably not be as focused on table games or live casino games. That being said, these games are incredibly fun and can provide variety to your online gambling experience.

Bonus Offers & Promotions

A great casino bonus, especially a no deposit casino bonus, can really help propel players on to casino big wins. Most casinos will proudly promote their promotions, but always be sure to read the bonus terms and conditions to learn what you need to do to be able to withdraw your potential winnings.

Casino License & Security

If you’re searching on Google for how to win big at the casino, chances are that you’ve come across some sketchy sites guaranteeing massive wins. Unfortunately, scams do exist so we always encourage our readers to exercise their best judgement when choosing a big win casino.

Check to see if the casino is licensed and, if it is, where it is licensed. The most reputable licensing authorities in the world include the Malta Gaming Authority and Curaçao eGaming.

Furthermore, check to see if the casino utilizes encryption and firewall software to protect player personal and financial data. These are factors that Gamble Online’s expert consider when reviewing sites. So if casino has our recommendation, it is a safe gambling site.

Big Win Casino FAQ


Casino of the Month July 2024



Min Deposit $25


350+ Slots

Cliff Spiller

Cliff Spiller is a veteran casino writer with decades of experience under his belt. He's played at –and reviewed– countless of online casinos, and has written dozens of casino game guides. His strategy articles, and gambling news updates have been a fixture in the industry since 2004. A native of North Texas, Cliff is a long-suffering Dallas Cowboys fan. He enjoys sports and games of all sorts, including sports betting.

Back To Top
Back To Top