For years, online casinos have tempted players with the promise of big wins and enjoyable entertainment. But is it really possible to win? And if so, what percentage of players actually come out ahead? In this article, I will show you what your real chances of winning are. More importantly, I will explain how to use this knowledge wisely and make informed decisions when playing.
How do online casinos work?
If you play at online casinos, remember that every game is designed so that, in the long run, the casino comes out ahead — always. This advantage is called the house edge.
On the other hand, there’s RTP (Return to Player), which is also expressed as a percentage and shows how much money statistically returns to players in the form of winnings.
Let’s assume that the total of all my bets in the game equals 100% (that is, I’ve wagered $100 in total). When playing a slot with an RTP of 96%, it means that on average I can get back $96, while the remaining $4 stays with the casino as profit.
In practice, RTP and the house edge are inverses of each other:
House Edge = 100% − RTP
So, if the RTP is 96%, the house edge is 4%.
Even if a slot machine has an RTP of 96%, it doesn’t mean that if I deposit $50 today, I’ll get $48 back. The return may come tomorrow, next week — or not at all. The RTP value refers to a long-term statistical average, not a guaranteed result from each game.
What is the casino’s advantage in gambling?
The house edge is a percentage that shows how much of your (and other players’) money stays with the casino. The lower the house edge, the better your chances.
Below is an overview of the house edge for popular casino games:
| Game | House Edge |
| Blackjack (with basic strategy) | 0.5% – 1% |
| Baccarat (banker bet) | 1.06% |
| European roulette | 2.7% |
| American roulette | 5.26% |
| Craps (pass/come bet) | 1.41% |
| Casino poker | 2.5% – 5% |
| Slot machines | 2% – 15% |
- As you can see, different games offer varying levels of casino advantage — and this is crucial for your strategy.
- In blackjack, with the right strategy, you can significantly reduce the casino’s edge. The fewer decks of cards used, the better your chances. With a single deck, the house edge can drop to just 0.17%.
- In online slots, you have the least control over the outcome, and the casino keeps between 2% and 15% for itself.
- Roulette, one of the most popular casino games, is among the least favourable for players. The difference between European roulette (one zero) and American roulette (two zeros) may seem small, but it’s significant when it comes to payouts. In European roulette, the casino’s edge is 2.7%, while in American roulette it rises to 5.26%.
While preparing this article, I reviewed the latest available statistics and industry reports to find out how many people play, who wins most often, and what the real chances of success are. Interestingly, offers like the Slotozen promo codes attract many new players to test their luck without risking their own funds, giving a practical insight into how real winnings work in the industry.
Number of players and market size
In 2025, more than 210 million people worldwide will be playing online. For comparison, in 2022 the global online gambling market was worth approximately $60 billion, and according to expert forecasts, it could reach as much as $300 billion by 2032. Virtual casinos now account for around 52% of the global gambling market.
Cashback offers usually have an expiry date. You must meet all the terms and conditions within the specified time frame to collect your reward and withdraw the money to your account.
Chances of big wins
It’s unrealistic to count on spectacular jackpots in online slots. The chances of hitting the top prize are often around 1 in 1,000,000, or even lower. The vast majority of players win only small amounts. Statistics show that around 5–10% of users regularly remain “in the black.”
Gender
Men are more likely to win at online casinos than women. Statistics show that men account for about 80% of online casino users. And who spends more? Men deposit on average one-third more than women. They also spend around 14 months of their lives gambling, which may explain why they win slightly more often.
Demographics and player behaviour
About 26% of the world’s population takes part in gambling, although only 17% of Britons and 3% of Americans regularly gamble online. The situation is different in Europe, where online casinos generate as much as 41% of global revenue from virtual gambling.
What affects your chances of winning at a casino?
The online gambling industry has always been strictly regulated to keep you and your money safe. Independent organisations such as GLI, iTech Labs, eCOGRA and TST regularly conduct detailed audits of casino games. They primarily verify that the software complies with applicable standards and analyse statistical results to rule out any manipulation in the algorithms.
Several factors influence your chances of winning at a casino. First of all, there’s the RTP (Return to Player) percentage – the higher it is (for example, 96–99%), the greater the chance that some of your deposited money will return to you. But remember, this is an average value calculated over a long period of time.
In addition to RTP, the following factors also affect your chances of winning at an online casino:
- Randomness – every spin and every hand are completely random. The RNG ensures that the results are fair but also unpredictable. There’s no way to “learn” a slot machine – each spin is an independent round.
- Gambling psychology – if you play under stress, frustration or when chasing losses, the risk of failure increases. Set a limit, stick to it, and play with a clear mind.
- Type of game – progressive slots offer huge jackpots, but the chances of hitting them are microscopic. Classic slots or blackjack, on the other hand, provide more frequent, though smaller, wins.
- Bonuses and promotions – free spins, cashbacks and welcome packages can genuinely boost your gaming budget. If you use these benefits wisely, they can extend your playtime and improve your odds of landing a bigger win.
Remember, it’s crucial to control your habits and treat gambling as entertainment, not a source of income. The game should bring excitement, a sense of escape, and perhaps a touch of adrenaline. But if you start playing to “win back” money or “make a profit,” it’s time to stop and think about why you’re really visiting the casino website.
The biggest wins at online casinos
On a global scale, in 2013, a British man using the pseudonym Jon Heywood won an incredible $20 million playing Mega Moolah. This win remains one of the biggest in the history of online casinos and shows just how much money can be won through gambling.
Below, I’ve compiled a few impressive examples of wins by Polish players that caught my attention:
- Jackpot Bells – Stake: $25, Win: $1,339,040 (23 December 2022)
- Fire Blaze: Blue Wizard Megaways – Stake: $500, Win: $1,036,500 (24 November 2022)
- Age of the Gods – Stake: $2, Win: $974,459 (18 March 2022)
Each of these wins shows how unpredictable online casinos can be – and that’s part of their appeal. You never know when you’ll hit the jackpot. These stories are not only impressive but also serve as a reminder that sometimes all it takes is one spin to turn your luck around.
FAQ
Which casino game gives you the best chance of winning?
Games such as blackjack and video poker offer the best chances of winning. With an optimal strategy, their RTP can reach up to 99.5%.
Does the casino always win?
Yes. The casino always has an advantage, known as the house edge – the percentage that the casino gains on average from all bets placed.
Is it legal to play games for money?
Playing at online casinos is legal in most countries as long as you use licensed operators approved by the relevant regulatory authorities and audited by independent testing companies.
Is it possible to win regularly at an online casino?
Winning regularly at an online casino is extremely difficult because the games are based on chance and include a built-in house edge. You can experience lucky streaks, but in the long run, the casino will usually come out ahead.
