There is one question every Italian player has asked at least once, perhaps while staring at the homepage of an online casino before deciding where to click: "Which game gives me the best real chance of winning?". It's a smart question, but almost nobody answers with real numbers. At Spinpolo we decided to do exactly that: no magic formulas, no salesman promises, only data, percentages and the truths casino marketing usually prefers to hide.
In this guide we'll put the three kings of the online casino face to face — Blackjack, Roulette and Slots — and judge them on three key metrics: RTP (Return To Player), house edge and volatility. By the end you'll know exactly which game deserves your time, based on the style you prefer and the kind of emotion you crave. Ready? The reels are spinning.
RTP, house edge and volatility: the three numbers that decide everything
Before comparing games, you need to understand the three metrics that really measure odds.
- RTP (Return To Player): the percentage of total wagers that, in the long run, is returned to players. A 96% RTP means that, for every €100 staked over time, the game returns an average of €96.
- House edge: the complement of RTP. If a game has 96% RTP, the house edge is 4%. It's the mathematical margin the casino keeps to pay slots, employees, licenses and to generate profit.
- Volatility: how much results swing away from the average. Low volatility = frequent but small wins. High volatility = rare but potentially huge wins.
Now let's apply these parameters to the three protagonists.
Blackjack: the brain game, the statistical nightmare of the house
Blackjack is the game with the best winning odds in the entire online casino, but on one condition: that you play with basic strategy. We're talking about a house edge between 0.5% and 1% depending on the table rules (number of decks, double after split, blackjack 3:2 vs 6:5 payout). Translated: RTP up to 99.5%.
What does it mean in practice? It means that, on €100 played, blackjack returns an average of €99.50. It's the highest figure you'll find in any regular Italian casino, and it's no coincidence that land-based casinos have always imposed strict rules to limit the player's advantage.
But there's a detail that changes everything: basic strategy is not optional. If you hit randomly, the house edge skyrockets to 2-3%. If you apply perfect strategy, the house stops at 0.5%. Blackjack rewards those who study.
Question: does card counting work online?
Answer: no, not in any meaningful way. Online RNG blackjack reshuffles the deck on every hand, making counting useless. On live blackjack with a real dealer it can theoretically work, but shoes hold many decks and the dealer reshuffles often. The real online weapon is basic strategy, not counting.
Roulette: French elegance, ruthless math
Roulette is the symbol of the casino, but its odds depend hugely on the variant you pick. And that's where many players get burned.
- European roulette (single zero): house edge 2.7%, RTP 97.3%.
- French roulette (with La Partage or En Prison rule): house edge 1.35% on even-money bets, RTP 98.65%.
- American roulette (zero and double zero): house edge 5.26%, RTP 94.74%.
The difference between French and American roulette is enormous: almost 4 RTP points. Yet many players don't check the variant and dive into the first colored wheel they see. That's a costly mistake.
Roulette is also a small psychological masterpiece: every number has the same probability, but the ritual of the bouncing ball, red versus black, dozen bets give you the illusion of control. The illusion costs 2.7%, but if you know what you're doing it's one of the most rewarding games in the online casino.
Slots: pure emotion, the jackpot dream
Online slots are the most popular casino game in the world, and Italy is no exception. The average declared RTP for ADM slots is 96%, with titles ranging from 92% on cheaper slots to 98.5% on some premium games. The house edge accordingly varies from 1.5% to 8%.
"So why pick slots, if their RTP is lower?" — fair question. The answer is a single word: volatility. A high-volatility slot can pay nothing for minutes and then explode with a win equal to 1,000 times the stake. Blackjack will never do that. Roulette neither. Slots sell dreams, and a small share of RTP is the price of the ticket.
And then there's a world apart: progressive jackpot slots. Here the "base" RTP is lower, because a percentage of every bet feeds the global prize pool. But when the jackpot finally pops, the winner can take home figures with six or seven zeros. No blackjack table can deliver an adrenaline rush like that.
Question: why do two slots with the same RTP feel so different?
Answer: because of volatility. Two 96% RTP slots can be completely different: one pays small amounts often, the other accumulates and then strikes hard. The first is perfect for long, calm sessions; the second is for hunting big hits. RTP only tells half the story.
Comparison table: the three games put to the test
| Game | Average RTP | House edge | Volatility | Skill needed | Best for |
|---|---|---|---|---|---|
| Blackjack (basic strategy) | 99.5% | 0.5% | Low | High | Rational players |
| French roulette | 98.65% | 1.35% | Medium | Low | Lovers of elegance |
| European roulette | 97.3% | 2.7% | Medium | Low | Traditionalists |
| High-RTP slots (97-98%) | 97-98% | 2-3% | Variable | None | Relaxed sessions |
| Average slots (96%) | 96% | 4% | Medium-High | None | Mix of emotion |
| Progressive jackpot slots | 92-94% | 6-8% | Very high | None | Dream chasers |
| American roulette | 94.74% | 5.26% | Medium | Low | Avoid if possible |
The truth marketing won't tell you
If you only count the numbers, blackjack wins hands down. 0.5% edge versus the 4% average of slots: on a €1,000 volume of play, that's €5 retained by the house at blackjack versus €40 retained at slots. Eight times more.
But — and this is the point most articles avoid — games aren't picked only with math. They're picked with the heart, with the time you have, with how much you want to think or switch off. A player who at 11pm needs thirty minutes of pure adrenaline doesn't want to study basic blackjack strategy: they want a themed slot, a spin of the reels and a colored dream. Spinpolo doesn't judge: we simply give you the tools to choose consciously.
Let me tell you a real case. Lorenzo, a Turin engineer, only plays live blackjack with basic strategy. In one year he has put through about €4,200 in play volume and is essentially break-even. The same amount played by Carlo, a Roman programmer, on high-volatility slots: he lost €380 in a month, then hit a €2,700 bonus the following month. Same casino, same money, two completely different experiences. The truth is that blackjack is the marathon, slots are the 100-meter sprint: pick the right training for your head, not what you read on forums.
"Odds never lie, but they only tell part of the story. The rest is written by discipline, bankroll and the awareness with which you sit down at the table." — Marco Bianchi, Spinpolo probability analyst
When to pick which game: the Spinpolo decalogue
- Got 90 minutes and want to think? Live blackjack with basic strategy.
- Want an elegant, reasoned experience? French roulette with La Partage.
- Looking for adrenaline and entertainment? Medium-volatility slots with at least 96.5% RTP.
- Dreaming of the win of a lifetime? Progressive jackpot slots, but with a dedicated bankroll and limited budget.
- Want a long evening of play? Low-volatility slots, 97% RTP and small stakes.
- Total beginner? European roulette or demo slots to learn.
- Tight budget but want to last? Low-volatility slots with welcome bonus, never high-stakes blackjack.
- Pure strategist? Single-deck blackjack with favorable rules.
- Want maximum control? Blackjack again: no other game offers the same edge.
- Looking for the ideal mix? A planned blend of blackjack (for bankroll) and slots (for the dream).
Theoretical RTP vs observed RTP: what you must know
The values listed above are theoretical, calculated over millions of hands or spins. In a 30-minute session they can be totally different. A 96% RTP slot can return 60% or 250% of your total stake during a single hour. That's normal. It's variance, the very reason gambling stays gambling and never becomes a banking calculation.
For those who want to dig into the mathematical mechanisms of probability in regulated gambling, the most complete and neutral reference remains the official portal of the Italian Customs and Monopolies Agency, where you can find data on concessions, declared payout percentages and responsible gambling guidelines.
If this comparison made you choose slots, the first deep dive to read is our complete guide to how RTP works in slots: understanding how theoretical return is measured is the foundation of any rational strategy. Right after, we recommend our comparison between Italian ADM slots and international slots: the same title can carry different percentages depending on the market, and that difference deeply changes the expected value of your session.
To really pick the right slot without spending a single euro on testing, finally apply the trial spin method to test every slot before investing: ten minutes in demo mode are enough to see whether the machine actually respects its declared volatility and RTP, or whether it's better to switch to the green table.
How Spinpolo curates the games it offers
On our casino you don't find "everything": you find what's worth playing. Our analyst team — myself included — checks observed RTPs every month, flags tables with disadvantageous rules, and reports to the editorial team any slots with volatility that doesn't match what the provider declares. We don't sell games: we curate them. When a title enters our catalog, it's because it has passed checks on certified RTP, coherent variance and licensed providers.
This is the experience and expertise we put at the heart of the Spinpolo product: more than ten years of work on tables, slots and roulette wheels, translating academic probability papers, joining technical industry roundtables. We're not just another casino: we're the casino that explains what you're about to do, before you do it.
Conclusion: the winner is the one who chooses with their head
If you were drawn to the raw numbers, blackjack is your game: the best RTP/edge ratio overall. If you want an elegant compromise between strategy and aesthetic, French roulette is waiting for you. And if you want to live the pure magic of the unexpected, certified slots remain an experience no other game can replicate.
The right answer to "which game has the best odds?" is therefore double: blackjack if you measure in numbers, slots if you measure in emotion. What truly changes the fate of your session, however, is not the game you pick: it's the awareness with which you step in. And that, on Spinpolo, we offer you free of charge, article after article, every time you open the blog.
About the author
Marco Bianchi is a senior analyst at Spinpolo Casino, specialized in probability applied to regulated gambling. With over twelve years of work across live tables, certified RNGs and mathematical models, he writes practical guides to help Italian players choose the right game based on numbers, style and budget. His mission: turn the online casino from a "blind bet" into an informed decision.