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Crash games: how Aviator-style games work and what the maths says

A multiplier climbs, and you cash out before it crashes. Crash games feel like a test of nerve, but the maths decides the result long before you press the button. Here is how they work and what each strategy costs.

Rocket breaking off its curve and tumbling down beside a cash-out button, illustrating how crash games end

Key facts

  • In a crash game a multiplier rises from 1x until it crashes at a random point. Cash out before the crash and you win your stake times the multiplier; wait too long and you lose it.
  • Spribe, which makes Aviator, lists its RTP as 97%. If that applies whatever target you choose, the chance of reaching a multiplier m is 0.97 divided by m: 48.5% for 2x, 9.7% for 10x.
  • So every cash-out target costs the same on average: 3 cents per dollar bet. Early cash-outs win more often and pay less; late ones win rarely and pay more.
  • A Martingale at a 2x target loses seven rounds in a row about once in 104 tries in our calculation, and averages a 3% loss on everything it bets.
  • Crash games are online casino-style games, which cannot legally be offered to people in Australia.

How crash games work

A crash game is a fast online gambling game built around one rising number. Spribe, the maker of Aviator, describes it as "an increasing curve that can crash anytime. When round starts, a scale of multiplier starts growing. Player must cash out before lucky plane flies away." Hacksaw Gaming's version of the pitch: watch the multiplier climb and cash out before it crashes, because "hold on too long and the round is lost".

A round goes like this:

  1. You place a bet before the round starts.
  2. The multiplier starts at 1x and climbs.
  3. You cash out whenever you like, and win your bet times the multiplier at that moment.
  4. At a random point the round crashes. Anyone still in loses their bet.

Some versions let you set a target in advance. In Hacksaw's Speed Crash and Limbo you enter a target multiplier between 1.05x and 10,000x; if the round's number reaches it, you are paid your target times your bet.

The maths: why every target costs the same

Spribe lists Aviator's return to player as 97%. If one RTP applies whichever cash-out point you choose, as a single published figure implies, the game has to be built so that:

chance of reaching multiplier m = 0.97 / m

That one line explains the whole game:

Cash-out targetChance of reaching itAverage return per $1 bet
1.5x64.7%97 cents
2x48.5%97 cents
3x32.3%97 cents
5x19.4%97 cents
10x9.7%97 cents
100x0.97%97 cents
1,000x0.097%97 cents

Every row returns the same 97 cents per dollar on average, so every row costs 3 cents per dollar. A low target wins often and pays little; a high target wins rarely and pays a lot. Neither changes the cost.

Aviator game strategy, tested

Players share many crash strategies. Here is what each one does under the maths above.

StrategyWhat it changesWhat it does not change
Cash out early (1.2x to 1.5x)Wins most roundsThe 3% average loss; the occasional instant crash wipes out several wins
Chase big multipliersBigger, rarer winsThe 3% average loss; long losing runs are normal
Auto cash-outRemoves hesitationThe odds of reaching the target
Two bets at different targetsSmooths the ride a littleEach bet still loses 3% on average
Martingale (double after a loss at 2x)Many small wins, rare big lossesThe 3% loss on every dollar bet
Watching previous roundsNothingEach round is independent

The Martingale deserves numbers. At a 2x target, a round fails 51.5% of the time. Starting at $1 and doubling after each loss for up to seven bets:

  • You lose seven in a row about 0.96% of the time, roughly 1 in 104 tries, and lose $127.
  • The rest of the time you win $1.
  • Average result per try: minus 23 cents, which is exactly 3% of the $7.66 you bet on average.

It is the same trap as at the roulette table, where the edge is 2.70% instead of 3%; our roulette strategy guide has the full breakdown.

Pundit tip: pick your session limit before the first round, not your target multiplier. The target changes how the session feels; the limit decides what it costs.

The real risk: speed

At a 3% house edge, or 3 cents per dollar, a crash game costs less per dollar bet than the average Australian club or hotel pokie, which kept about 7.9 cents in 2024-25. The danger is how many dollars go through. Rounds are short and repeat continuously, and the screen shows other players cashing out big wins. Spribe lists in-game chat, "Live Bets" where "everyone can see how much other players are betting and winning", and a "Rain Promo" that drops free bets into the chat at random times.

As an illustration, at $2 a round and 60 rounds an hour, you bet $120 an hour and lose about $3.60 on average. Play 300 rounds and the same maths takes $18. The variance is wide too: at a 10x target, losing 20 rounds in a row happens about 13% of the time (0.903 to the power of 20). For how a game's spread affects a session, see our pokies volatility guide, which applies just as well here.

Crash games are not a skill game

The cash-out button makes crash games feel like a test of timing. It is not: the crash point is random, and no reaction speed changes it. The only real decisions are how much to bet, how many rounds to play and when to stop. How online games produce random results, and how they are tested, is covered in our random number generator guide. Plinko and mines are built the same way as crash games: a published RTP, a simple screen and very fast rounds.

Crash games in Australia

Crash games are online casino-style games. Under the Interactive Gambling Act, online casino games cannot legally be offered to people in Australia, and ACMA lists casino-style games among illegal online services. Spribe itself says the format "became popular in crypto casinos", none of which can be licensed here. Read are online pokies legal in Australia for what playing offshore means for your money, and see the casino games guide for how crash compares with traditional games.

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Frequently asked questions

How do crash games work?

You place a bet before the round starts. A multiplier then climbs from 1x, and at a random moment the round crashes. If you cash out before the crash, you win your bet times the multiplier at that moment; if you are still in when it crashes, you lose your bet. Spribe describes Aviator as 'an increasing curve that can crash anytime'.

Is there an Aviator game strategy that works?

No strategy changes the average result. Spribe lists Aviator's RTP at 97%, which means about 3 cents of every dollar bet is lost on average. Cashing out early, late, with two bets or with auto cash-out only changes how often you win and how much, not the long-run cost.

What is the best multiplier to cash out at in crash games?

If the game's single RTP applies to every target, there is no best multiplier for value. At 2x you win about 48.5% of rounds; at 1.5x about 64.7%; at 10x about 9.7%. Each returns the same 97 cents per dollar on average.

Are crash games rigged?

They do not need to be. A crash game with a published RTP below 100% is built to lose players a fixed share of what they bet over time. The danger is speed and repetition rather than a hidden trick.

Are crash games legal in Australia?

Real money crash games are online casino-style games, and online casino games cannot legally be offered to people in Australia under the Interactive Gambling Act. Spribe itself says the format became popular in crypto casinos.

Related reading

Sources

Official pages we relied on. If anything here has changed, tell us via the contact page and we fix it.

  1. Spribe: Aviator
  2. Hacksaw Gaming: Crash games
  3. Hacksaw Gaming: Speed Crash
  4. Hacksaw Gaming: Limbo
  5. ACMA: Protect yourself from illegal gambling operators
  6. Interactive Gambling Act 2001, compilation 24 (PDF)