Welcome!
This site helps you explore how gambling games like roulette and craps are designed to favor the house. You can run thousands of simulations to visualize your chances and learn the hidden math behind the games.
🎰 The House Always Wins (Eventually)
Casino games are built with a mathematical edge that guarantees profit for the house over time. Even games that seem simple or fair, like betting red or black in roulette, are skewed by the presence of 0 and 00 (on American wheels), which give the casino a slight advantage every spin.

🔁 The Winning Streak Myth
It’s common for players to believe they’re "on a roll" or that a win is "due" after a series of losses. This is called the Gambler's Fallacy—the mistaken belief that past random events influence future ones. Every spin, roll, or draw is statistically independent unless stated otherwise (like in card counting).

💸 Quit While You’re Ahead?
Many gamblers believe in quitting after a big win, thinking they’ve "beaten the system." While this can minimize loss, it doesn’t change the long-term odds. It’s a good harm-reduction practice, but not a strategy to win.
🔎 What You’ll Learn
- What the odds really are in popular games
- How your expected return changes based on the game
- Why the casino always comes out on top in the long run
🎲 Try It Yourself
Run simulations to see what would happen if you played 100, 1,000, or 10,000 times!