Math & RTP Model

The math, in full

Crypto Flight X is a crash-style multiplier game. The return-to-player and full probability distribution are defined by a single public formula — there are no hidden tables. This is the exact model your testing lab and compliance team can certify against.

95.00%
Return to Player (RTP)
Configurable per operator (90–98%)
5.00%
House edge
Default; set in operator console
High
Volatility
Crash-style multiplier curve
10,000x
Max win
Configurable cap per operator

Probability distribution

The chance that any round reaches a multiplier m or higher is:

P(crash >= m) = (1 - houseEdge) / m

With houseEdge = 0.05:
  P(crash >= 2.00x)  = 0.475   (47.5% of rounds)
  P(crash >= 5.00x)  = 0.190   (19.0% of rounds)
  P(crash >= 10.00x) = 0.095   ( 9.5% of rounds)
  P(crash >= 100x)   = 0.0095  ( 0.95% of rounds)

Because expected return is the same at every cash-out target, the theoretical RTP is constant at 1 − houseEdge = 95% regardless of player strategy. The minimum result is always 1.00x.

Exact crash-point formula

Each crash point is derived deterministically from the provably-fair seeds. Run this in any language and you get the identical result:

h = first 52 bits of HMAC_SHA256(serverSeed, clientSeed + ":" + nonce)
fair       = floor((100 * 2^52 - h) / (2^52 - h)) / 100
crashPoint = max(1, floor(fair * (1 - houseEdge) * 100) / 100)

Every output is reproducible from the published seeds — see the verifier on the Provably Fair page.

Operator-configurable parameters

  • House edge / RTP — default 5% (95% RTP); adjustable 2–10% per operator.
  • Max win cap — default 10,000x; set lower for tighter liability limits.
  • Min / max bet — controlled entirely by your wallet integration and lobby.
  • Currency — any token your wallet supports (USDT, BTC, ETH, etc.).
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