How Crash works mechanically
Each round, a multiplier starts at 1.00x and climbs continuously. You place a bet before the round starts and choose when to cash out — any time before the multiplier 'crashes' at a hidden ceiling. Cash out at 2.00x and you double your bet; cash out at 10.00x and you 10x. If you don't cash out before the crash, you lose your stake.
The crash point is determined by a provably fair algorithm using a server seed (hidden until after the round) and a client seed (which you control). The output is a number drawn from a heavily right-skewed distribution — most rounds crash early, occasional rounds reach extreme multipliers. The distribution is verifiable: after the round, you can recompute the crash point yourself and confirm it matches.
The provably fair math, in plain language
Crash's distribution is constructed so that, before the house edge, the expected value of any cash-out target equals your bet. Stake takes a small house edge (typically around 1%) by adjusting the distribution slightly — roughly 1% of rounds 'instant crash' at 1.00x, meaning everyone loses regardless of cash-out target. This is the single source of the house edge.
Provably fair verification means you can audit any round after the fact. The server seed is published once the round ends; combine it with your client seed and a public hash function and you'll recompute the same crash point Stake used. See our provably fair explainer for the cryptographic detail.
Expected value at every cash-out target
Because of the construction, every cash-out target has the same expected value: your bet × (1 - house edge). Cashing out at 1.50x, 5.00x, or 100.00x all have identical long-run EV. The only thing that changes is variance: cashing out at 1.50x means you win small frequently and rarely lose, cashing out at 100.00x means you lose almost every round but win huge when it lands.
This is the most important fact about Crash and the one most strategy videos get wrong. There's no 'safe' multiplier that gives you better EV — they're all equivalent. Choose your cash-out target based on the variance profile you can tolerate, not on imagined EV differences.
Common 'strategies' and why they fail
Martingale on Crash (doubling your bet after every loss until you hit a 2.00x cash-out) is mathematically catastrophic. The right-skewed distribution means you can lose 8, 10, 12 rounds in a row, and the bet sizing required to cover those losses is exponential. A bankroll that survives a 7-loss streak gets destroyed by a 9-loss streak.
Other folk strategies — 'always cash out at 1.30x', 'wait for three losses then bet big', 'reverse martingale on hot streaks' — all rely on the gambler's fallacy that past outcomes predict future ones. They don't. Each round is independent, the math is identical for every cash-out target, and no betting pattern changes the long-run negative EV imposed by the 1% house edge.
Auto-bet mode and risk controls
Stake's Crash interface includes auto-bet, where you set a cash-out target, a number of rounds, and stop conditions (stop on profit/loss). For grinders, auto-bet is essential — it removes emotional cash-out decisions and lets you grind hundreds of rounds per hour without manually clicking each time.
Use the stop-loss and stop-profit fields aggressively. A typical safe configuration: stop loss at 20% of your session bankroll, stop profit at 30%, and a fixed bet size. This converts Crash from a degen game to a disciplined grind. See our stop-loss/stop-win framework for the broader bankroll context.
Why low-multiplier auto-bet feels like it works
Auto-betting a cash-out at 1.50x feels almost like a sure thing — round after round of small wins. The problem is that the instant-crash rounds and busted rounds eventually arrive in clusters, and a 10-round losing streak on a 1.50x target wipes out roughly 10 rounds of accumulated wins. The long-run EV is still negative-1%.
Players who don't understand variance often blow up their bankrolls by increasing bet size during a hot streak (assuming the strategy 'works') and then getting destroyed when variance catches up. Fixed bet sizing is the only configuration that doesn't ruin you when the inevitable bust streak arrives.
Crash and Stake races
Crash is one of the eligible games for Stake races, where high single-round multipliers count toward leaderboard scoring. If you're targeting a race, your cash-out strategy shifts entirely — you want to hit a single rare big multiplier rather than grind small wins. Bet smaller, target 100x+, and accept that 99% of your rounds will lose.
This is the only situation in Crash where a non-fixed strategy makes sense, because the race prize structure overrides the underlying EV. See our Stake originals guide and race strategy playbook for the full tournament approach.
Related pages
Common questions
What's the house edge on Stake Crash?
Roughly 1% — implemented as approximately 1% of rounds instant-crashing at 1.00x. Every cash-out target above 1.00x has the same long-run EV (your bet × 0.99).
Is there a 'safe' cash-out multiplier?
No. Every cash-out target has the same expected value. Higher targets have higher variance (rarer wins, bigger payouts), lower targets have lower variance, but the underlying EV is identical.
Does martingale work on Crash?
No. The right-skewed distribution produces long losing streaks that exponentially destroy any martingale bankroll. It's one of the worst games to martingale.
Can I verify Crash rounds are fair?
Yes. After each round, the server seed is published. Combine it with your client seed and the published algorithm to recompute the crash point. See the [provably fair guide](stake-provably-fair-explained).
What's the maximum payout on Stake Crash?
Stake imposes a maximum multiplier cap that resets your maximum potential payout depending on bet size. For typical bets, the cap is well above any realistic cash-out target.
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