Which floe cracks is fixed before your first hop. When a game starts the server publishes the SHA-256 hash
of its secret seed, and reveals the seed when the game ends so you can check the path yourself.
Applies from your next game.
How the path is calculated
For floe i = 1, 2, 3…: h = HMAC_SHA256(serverSeed, clientSeed:nonce:i)
r = first 13 hex digits of h / 2^52 (a number in [0, 1))
Floe i cracks if r is below the crack chance (Easy 8%, Medium 15%, Hard 25%,
Extreme 40%). The first such floe ends the walk.
The multiplier after k floes is floor(97 / (1 - chance)^k) / 100.
So every cash-out point has the same expected return of about 97%.