Practice every bet on the table before you risk real money. Pick what the dice show, throw them, and track exactly how each strategy would have played out — with nothing on the line but time.
What the Simulator Does
Most craps practice tools generate random rolls, which is fine for learning the flow of a round but useless for testing a specific scenario. The KnowYourCraps simulator works the opposite way: you choose the dice values yourself, roll after roll, so you can model a specific outcome, test how a strategy handles a cold streak, or replay your own logged results from a real session at the table.
It runs entirely in your browser — nothing to install, no account required, and no money ever touches it.
Features
- Every bet type: Pass, Come, Place, Buy, Lay, Hardways, Hop, Horn, Field, and the bonus bets
- Choose your own dice values to model specific rolls and sessions
- Standard and Crapless Craps modes
- Session tracking: P&L, roll history, and frequency stats as you go
- Customizable payouts to match any casino's specific table rules
Using It as a Bubble Craps Simulator
The layout includes the bonus bets you mostly only find on electronic machines rather than live felt: Low Rolls (2 through 6), High Rolls (8 through 12), and Roll Em All (all ten numbers). Those are the same family of bets a bubble craps machine calls All Small, All Tall, and Make 'Em All. Crapless mode is built in as well, since many machines run it.
That makes this a practical way to practice a bubble craps machine without feeding it money first. Because you pick the dice values yourself, you can see exactly how long a Roll Em All bet really survives — which is the honest answer to why those bets pay what they pay. If you want the background on how the machines themselves work, read bubble craps explained.
How to Use It
Launch the simulator in a new browser tab, set your bankroll and table rules, and start placing bets. Instead of a random number generator deciding the roll, you pick the dice values yourself — which means you can deliberately run a hot streak, a cold streak, or replicate rolls you tracked during an actual session, and see exactly how a betting strategy would have paid out against them.
When you're done, the session stats give you a clear picture of how the strategy performed across every roll you entered — so you can compare approaches before you ever put real money on the table.