Documentation

How to Use This Simulator

This simulator allows you to practice Craps strategies without risking real money. Here's how to get around:

  • Game Mode: Play an interactive game of Craps. Use the chip selector to choose your bet size, and click on the betting areas on the table to place bets. Use the control panel to roll the dice.
  • Simulation Mode: Run high-speed simulations of betting strategies over thousands of rolls to see long-term outcomes and statistics.

Controls & Instructions

Betting Actions
  • Place Bet: Left-click on any betting area. The selected chip amount will be added.
  • Remove Bet: Right-click (or long press on mobile) to remove a bet. You can also open the bet details popup and click "Remove Bet".
  • Add Odds: Click on an existing Pass/Don't Pass or Come/Don't Come bet to open the details popup, then click "Add Odds". Or simply click the chips on the table again to add to the flat bet/odds intelligently.
  • Toggle ON/OFF: Open the bet details popup (click the chips) and toggle "Always Working" or "Turn Odds OFF/ON" for individual bets.
Keyboard Shortcuts

Use these keys for quick actions:

KeyAction
1-5Select Chip Amount
SpaceRoll Dice
Rounding & Features
  • Round Bets Up: Check the "Round Bets Up" box in the control panel to automatically round your place bets to the nearest proper unit (e.g. $25 Place 6 becomes $30) for correct payouts. The potential rounded amount will be shown in parenthesis, e.g. $25 ($30).
  • Virtual Betting: Bets are "virtual" until you roll or switch to a different bet type. This allows you to adjust the amount unrounded units before rounding kicks in at the end.

How to Play Craps

Craps is a dice game played with two dice. The game is played in rounds, and the first roll of a new round is called the "Come Out" roll.

The Pass Line

The most fundamental bet in Craps.

  • Win: Roll a 7 or 11 on the Come Out roll.
  • Lose: Roll a 2, 3, or 12 on the Come Out roll.
  • Point: Roll a 4, 5, 6, 8, 9, or 10. This number becomes the "Point". To win, you must roll the Point again before rolling a 7.
Don't Pass Line

The opposite of the Pass Line. You are betting against the shooter.

  • Win: Roll a 2 or 3 on the Come Out roll. (12 is usually a push).
  • Lose: Roll a 7 or 11 on the Come Out roll.
  • Point: If a Point is established, you win if a 7 is rolled before the Point.
Come & Don't Come

These work exactly like Pass and Don't Pass bets, but they can be made after a Point has already been established. They treat the next roll as a personal Come Out roll.

Odds Bets

After a Point is established on a Pass/Don't Pass or Come/Don't Come bet, you can take "Odds". This is an additional bet behind your original bet that pays true odds (no house edge).

Place Bets

You can bet directly on numbers 4, 5, 6, 8, 9, or 10. You win if that number is rolled before a 7.

Single Roll Bets

These bets are resolved on the very next roll. They either win or lose immediately.

Field Bet

A bet that the next roll will be 2, 3, 4, 9, 10, 11, or 12.

  • Win: Roll 2, 3, 4, 9, 10, 11, 12. (Pays 2:1 when rolling 2, pays 3:1 when rolling 12, pays 1:1 otherwise.)
  • Lose: Roll 5, 6, 7, 8.
Any Seven

Bet that the next roll will be a 7. Pays 4:1.

Any Craps

Bet that the next roll will be 2, 3, or 12. Pays 7:1.

Horn & World Bets
  • Horn: Split bet on 2, 3, 11, and 12.
  • World (Whirl): Horn bet plus Any Seven.
  • Yo (Eleven): Bet on 11. Pays 15:1.
  • Ace Deuce (3): Bet on 3. Pays 15:1.
  • Aces (2) / Midnight (12): Pays 30:1.

Hardways

Betting that a pair will be rolled before a 7 or an "easy" combination of that number.

Hard 4, 6, 8, 10

Example: Hard 8 wins if 4-4 is rolled. It loses if a 7 is rolled, or if an "easy 8" (2-6, 3-5) is rolled.

Advanced Bets

Buy Bets

Similar to Place Bets but pays true odds minus a 5% commission on winnings.

Lay Bets

Betting against a number (like Don't Come/Pass). Pays true odds minus a 5% commission on winnings. Wins if 7 hits before the number.