How to use the crash simulator
Set a starting balance, a stake and an auto-cashout multiplier, pick the house edge of the casino you intend to play (1% for Stake, Shuffle and BC.Game; 4% for Gamdom and Duel’s standard mode; 3% for Aviator) and press Play round to watch one round, or Auto ×100 to simulate a hundred rounds instantly. The KPI row tracks balance, profit/loss, round count and win rate.
Strategies you can test
- Flat — the same stake every round. The baseline.
- Martingale — double after every loss, reset after a win. Run Auto ×100 a few times and watch what a seven-loss streak does.
- Paroli — double after a win up to three times, then reset. Low risk, occasional 8x base-bet wins.
What the simulator proves
Run 1,000 rounds at any cashout and you will land near −1% of total wagered at a 1% edge. Change cashout, strategy, bet size — the slope stays the same; only the noise around it changes. That is the whole truth about crash strategy, and it is easier to believe after you have watched it. Read our strategy guide for the numbers behind each approach.
The formula
Each round draws r uniformly in (0,1) and sets crash = max(1, (100 − edge) / (100 × r)), floored to two decimals and capped at 1,000,000x. This matches the Bustabit-derived formula used by the originals we list; provider games (Aviator, JetX) use their own certified RNG with a similar distribution.
RoobetReady for real rounds? Roobet has a free demo lobby and a 100% bonus with code roospins.