Multiplier rises every second. Cash out before the rocket explodes — but greed ruins more rounds than bad luck.
| Crash distribution | 1% instant 1.00× crashes (house edge); rest follows heavy-tail curve |
| Median crash point | ~2.0× — half of rounds end before doubling |
| 10× crashes | ~9% of rounds |
| 50× crashes | ~2% of rounds |
| 100×+ crashes | ~1% of rounds (the moonshots) |
| Long-run RTP ≈ 99% with auto-cashout strategy. Manual play often worse — humans hold too long. | |
Crash games are a recent invention — popularized by online crypto casinos in the late 2010s — and they combine slot-style variance with a "cash out" decision that adds a flavor of skill. A multiplier starts at 1.0x and climbs in real time; you choose when to lock in your win. If the curve "crashes" before you cash out, you lose your entire wager. Properly designed crash games run about a 1% house edge — among the best on the floor.
Place a bet before the round starts. When the round begins, a multiplier displays starting at 1.0x and climbs (typically exponentially) over a few seconds. You can press "Cash Out" at any moment to lock in your current multiplier; you receive your bet × multiplier. The curve will crash at some random point — when it does, anyone who hasn't cashed out loses. The crash point is determined by a provably-fair hash committed before the round starts, so players can verify the casino isn't rigging individual rounds after seeing bets.
Crash is mathematically equivalent to picking a fixed multiplier in advance and auto-cashing-out at that point. The expected value at any fixed cashout target equals (cashout × probability of reaching cashout) − 1 × (probability of crashing before that point) — and with a 1% house-edged crash curve, EV is approximately equal regardless of target choice. Higher targets mean rare big wins; lower targets mean frequent small wins. Optimal target for "minimize variance" is around 1.5-2.0x; for "lottery feel" pick 10-100x. The Martingale "double after loss" strategy is the most popular crash strategy and the most dangerous — chain three losses at 2x and you've quadrupled your unit; chain six and you've spent 64x — your bankroll has a hard limit and the curve doesn't care.
The house edge on a fair-curve crash game is typically implemented by capping the probability of reaching very high multipliers slightly below the "fair" value. For a 1% house edge, P(crash before multiplier m) ≈ 1 − (0.99 / m). At m = 2.0x, fair probability of reaching is 50%; with the edge, actual probability is ~49.5%. EV at any cashout m is (m × P(reach m)) − 1 = (m × 0.99/m) − 1 = -0.01, confirming the 1% edge is uniform across cashout choices. Variance scales steeply with cashout target — a 100x target has roughly 100× the variance of a 2x target.
Crash emerged from the Ethereum-based casino "Bustabit" in 2014. The game's verifiable randomness (using blockchain hashes) made it popular with crypto users skeptical of traditional online casino RNGs. It has since spread to mainstream sites under various names (Aviator, JetX, Spaceman).
| Bet | Payout | Notes |
|---|---|---|
| Cash out at 1.5x | 1.5:1 on bet | ~65% hit rate |
| Cash out at 2x | 2:1 on bet | ~49.5% hit rate |
| Cash out at 10x | 10:1 on bet | ~9.9% hit rate |
| Cash out at 100x | 100:1 on bet | ~0.99% hit rate |
Every game on placebets.ai uses virtual chips that reset whenever you clear browser data. There is no signup, no deposit, no withdrawal mechanism, and no monetary value attached to the chips shown on screen. Use the practice environment to drill crash's math and strategy without risk. Decide for yourself whether you ever want to play for real money — we'd statistically rather you didn't.