Learn the Rules of Popular Casino Games
Learn card values and the five main actions. A natural pays 3 to 2, and with basic strategy the house edge is about 0.5%.
Roulette
Inside and outside bets pay from 1 to 1 up to 35 to 1. European roulette has a 2.70% house edge.
Slots
Learn how online slots work and why most return about 94–97% of stakes over time.
See how a bookmaker sets fixed odds and how to bet in four steps, from sign-up to withdrawal.
Sic Bo
Keno
Pick numbers from 1 to 80 and see how the number of spots changes your odds and payouts.
Baccarat
Learn card values, naturals and when a third card is drawn. The Banker bet pays 0.95 to 1.
Learn the hands, variants and strategy. Full-pay 9/6 Jacks or Better returns 99.54% with max coins (5) and optimal play.
Craps
Learn how a round moves from the come-out roll to the point. The pass line pays 1 to 1 with a 1.41% house edge.
More Casino Games: Card, Dice, Game Show and Crash Games
Rules, payouts and RTP for card games, dice games, live casino game shows and crash games. Start with our guide to live casino games.
Card Games
Game Shows
Crash and Other Games
Top Online Casinos
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Casino D
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Casino E
4.7 / 5
Popular with high rollers for large cashback, fast payments and no maximum withdrawal limit.
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18+ (or the legal age where you live). New customers only. Terms and wagering requirements apply.
See Full RankingsBetting Systems: How They Work and Why None Beats the House Edge
A betting system tells you how much to stake after each win or loss. It changes the size of the swings in your results, not the house edge.
Martingale Strategy
Doubles the bet after each loss. Ten losses in a row, starting from $1, cost $1,023.
Paroli System
Doubles the bet after each win. One loss wipes out the streak.
Labouchère System
Bets the sum of the two end numbers of a sequence, crosses them off after a win and adds the lost stake to the end after a loss.
1-3-2-6 System
Stakes 1, 3, 2 and then 6 units over a run of wins. Four wins in a row earn 12 units, and the bet never rises after a loss.
Oscar's Grind
Keeps the bet flat after a loss and raises it after a win, aiming for one unit of profit per cycle.
D'Alembert System
Used on even-money bets: the stake goes up one unit after a loss and down one unit after a win.
Best Casinos in the World: Destinations Worth a Visit
Las Vegas (USA)
23 casino hotels on and off the Strip. You must be 21 or older to gamble.
Monte Carlo (Monaco)
The Casino de Monte-Carlo gaming rooms open at 2 p.m., with a €20 entry fee.
Macau
Sample budgets and tips on using Hong Kong dollars. Visitors must be 21 or older and show a passport.
London (UK)
Walk in the same day at 18 or older with a passport. Several casinos stay open almost around the clock.
Featured Guides
Blackjack Basic Strategy Charts
Build a basic strategy chart and see the RTP for the table rules you play.
Online Slots
Popular and classic slots ranked, and why slots return about 94–97% over time.
Casino Software Providers
What providers do, plus the licenses, testing labs and top games behind them.
Frequently Asked Questions
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Q
What Are the Best Casino Games for Beginners?
ARoulette and blackjack have simple rules, and baccarat is easy to play because the cards are drawn by fixed rules. Blackjack also has one of the lowest house edges, about 0.5% with basic strategy.
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Q
Are Casino Games Just Luck?
AIt depends on the game. Roulette, baccarat and slots are games of chance, but in blackjack and video poker your decisions affect the return.
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Q
How Can I Learn the Rules for Free?
AOur guides explain the rules of each game for free, and many games also offer a free demo with virtual credits so you can practice before you bet.
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Q
Can a Betting System Like the Martingale Guarantee a Win?
ANo. A betting system changes how much you stake, not the house edge. Ten losses in a row from a $1 Martingale bet already cost $1,023, and table limits can stop the progression.
Play Responsibly
Every bet can lose. Set a budget before you play and only bet money you can afford to lose.
Choose sites that offer responsible gambling tools such as deposit limits, session time limits and self-exclusion.
We explain rules and odds for information only and do not guarantee any result.
This site is intended for adults living in countries or regions where online gambling is legal. Check the laws and the minimum age (usually 18 to 21) where you live before you play.
If gambling is causing problems for you or someone close to you, contact a gambling support service in your country.