Crash game
A crash game is a casino game in which a multiplier starts at 1.00x and climbs until it stops, or “crashes”, at a point fixed before the round began, and the player wins their stake times the multiplier only if they cash out before that moment. There are no reels or cards in it. The whole game is a single number rising on screen, with a decision to make about when to leave, and a house edge built into how the crash point is drawn.
How the crash point is calculated
The crash point is not decided while the multiplier climbs. In the provably fair designs most crash games use, the server generates a secret seed before betting opens, combines it with one or more client seeds, and runs the result through a hash function such as SHA-256 or SHA-512. A slice of that hash becomes a number between 0 and 1, and a published formula turns it into the multiplier at which the round will end.
The formula is built so that the chance of the multiplier reaching any target equals the RTP divided by that target. In a game with a 97% RTP, the round reaches 2x about 48.5% of the time and 10x about 9.7% of the time. A small share of rounds end at 1.00x straight away, and that instant bust is where much of the house edge sits.
The consequence is the part players tend to miss.
Multiply each probability by its payout and the expected return comes back to 0.97 every time, whether the target is 1.20x or 100x. Over €500 of play, a 3% edge means an expected cost of around €15 as a long-run average, not a forecast for any one evening, and no choice of cash-out target changes it. A low target wins often and pays little; a high one rarely wins and pays a lot. Only the variance moves.
Where Irish players meet crash games
Crash games usually sit in their own lobby tab, apart from slots and live casino, and the best-known example is Aviator by Spribe. Spribe lists the game at a 97% RTP on its own product page, which works out at a 3% house edge.
That figure needs a qualification. Some sources describe Aviator as fixed at 97% everywhere, while others report that operators can run it at lower settings such as 94% or 96%. We could not confirm from the studio which is right, so what I check first is the RTP shown in the game’s own information panel at the casino in question, rather than the number on a provider’s website. Other studios set their own figures, and in-house crash games at some crypto sites advertise edges as low as 1%, so there is no single industry standard to quote.
Two features appear in most versions: auto cash-out, which closes the bet at a chosen multiplier, and a double bet, which runs two stakes in the same round with different targets.
Neither of them alters the house edge.
What crash games are confused with
The most common confusion is with provably fair as a guarantee of a good deal. Provably fair means the casino published a hash of the server seed before the round and revealed the seed afterwards, so anyone can check that the crash point was fixed in advance. It proves the round was not changed after bets went in. It does not prove the RTP matches what was advertised, and it says nothing about whether winnings get paid.
Crash games are also mistaken for games of skill because the player chooses when to leave. Timing decides which outcome a player gets, yet the expected value of every choice is the same, so the choice is about risk appetite rather than an edge.
The last myth is the “due” multiplier.
A run of low crashes does not make a high one more likely, because each crash point comes from its own hash and the game has no memory. Tools sold as Aviator “predictors” rest on the opposite idea, and a one-way hash function is exactly what makes them useless: the next result cannot be worked out from the ones before it.
