Provably fair, in your hands
A real dice game with play money: pick your odds, bet credits, and watch your session stats — win rate, distribution, and the 1% house edge slowly doing its work. Underneath runs the exact commit-reveal mechanism crypto casinos use, and you can verify every roll yourself.
Play balance
1,000.00credits
50% chance · 1.98× payout
Session stats
Rolls
0
Win rate
—
expected ~50%
Wagered
0.00
Net profit
+0.00
The payout is 99/chance instead of a fair 100/chance — a 1% house edge, the same math real casinos run. Expected net after wagering X credits is −1% of it.
The fairness machinery
1 · Server seed commitment (SHA-256)
Fixed before you roll — the casino can't swap seeds without breaking this hash.
generating...2 · Your client seed
Mixed into every roll so outcomes can't be precomputed.
3 · End the round: reveal & verify
Reveals the server seed, checks it against the commitment, and recomputes every roll of this round. A new commitment starts automatically.
Roll history
No rolls yet. Every roll is HMAC-SHA256(server seed, client seed + nonce) — deterministic, so it can be re-checked later.
Play money only — this exists to make the mechanism and the math touchable, not to gamble.
Want the full explanation? Read the provably fair guide or browse casinos with provably fair games.