Roobet Crash: multiplier game verified by 2 million seeds

01Rules of Crash: one curve, one decision

A round of Crash starts with a short betting window, then the multiplier begins to rise from 1.00x. At an unknown point the curve stops, which the game calls the crash. Every player who pressed Cash Out before that point receives the stake multiplied by the value displayed at the moment of the click. A stake that is still in the game when the curve stops is lost. The stopping point is derived from the seed chain described below and is fixed before the round opens.

Two controls shape the bet besides the amount. An auto cash-out field settles the bet automatically when the multiplier reaches a chosen value, which removes the need to click in time. Autobet repeats the same stake and auto cash-out for a set number of rounds; the Game Policy forbids third-party bots. Fun Play runs the same rounds with play money, as on every game of the Originals hub.

• the multiplier starts at 1.00x and rises until the crash point;
• a manual Cash Out pays the value shown at the click;
• an auto cash-out settles the bet at a preset multiplier;
• a stake left in the round after the crash is lost;
• the crash point is fixed by the seed chain before the round opens.

The Roobet guide opens with an overview of the catalogue, the cashier, the rewards and the licence; this chapter goes into one part of it in detail.

02A round step by step

The sequence below follows the controls of the game panel on the desktop and mobile site. A registered account with a funded balance is required for real bets; the chapters on registration and deposits cover those two steps. Fun Play needs no balance. Gambling is for adults of 18 and over, and the page on responsible gambling lists the limit tools.

1. Open Crash from the Roobet Originals row of the casino lobby.
2. Enter the stake in the bet field, between $0.01 and $20,000.
3. Set an auto cash-out multiplier or leave the field empty for a manual exit.
4. Place the bet during the betting window before the curve starts.
5. Press Cash Out at the chosen moment, or let the auto cash-out settle the bet.
6. Read the result in the bet history and open the details to verify the round.

A bet placed after the betting window closes is queued for the next round, not for the one already running.

03Bet limits and maximum win

The Game Policy (version 4.5.0) sets one set of limits for the Originals and names the exceptions. Crash follows the standard values: a minimum of one cent, a maximum stake of $20,000 and a cap of $500,000 on a single win. The cap applies to the payout of one bet.

All Originals bets are placed from the crypto side of the wallet in USD terms. What a Crash bet contributes to rakeback and the Vault is described in the rewards chapter.

04Provably fair: the 2-million-seed chain

Crash does not use a per-player client seed. The fairness page of the operator describes two ingredients for this game: a server seed generated by the casino and a client seed that is the hash of a crypto block such as a Bitcoin or Ethereum block. The server seeds are created in advance as a chain: one seed is hashed with SHA256 to produce the next, and the process is repeated 2 million times. The first round ever played used the 2-millionth seed, the second round the 1,999,999th, and every later round walks one step back down the chain.

The block hash serves as a public commitment. The casino names a future block before it is mined, after the whole chain of seeds already exists, so neither side can know or alter the results in advance. The current client seed is displayed in the verification tool on the fairness page. A broader account of the system across all games sits in the chapter on provably fair and licensing.

1. Open the bet in the history and copy the server seed of that round.
2. Go to the Crash tab of roobet.com/fair and press Verify Results.
3. Paste the server seed into the field.
4. Compare the list of seeds and results of the previous 100 games with the rounds played.

05Mistakes that cost money in Crash

The errors below come from the betting window, the auto cash-out field and the limits.

06Where Crash sits in the catalogue

In the catalogue snapshot of 22 October 2026 Crash carries the category provably fair, the tags roobet-games and arcade, and a release date of 13 September 2023, which matches the date on which the game moved to the current platform rather than its first launch. Fun Play is switched on. Among the 15 Originals it holds the fourth place in the popularity sort and the seventh place in the weekly activity counter.

The same row carries a wager-excluded tag; the catalogue does not explain what that tag governs, so the rewards page should be read for the rules on which bets count. The cards below lead to the neighbouring Originals.