Provably fair dice game
Every Dice roll on Aurion is provably fair: the roll is fixed by seeds before you bet, one of which you can set yourself, and you can recompute any roll afterwards. Free with virtual coins. No real money, no deposit.
How each roll is decided
- You have your own seed pair: a secret server seed, of which we only show the SHA-256 hash, and a client seed you can change at any time. A nonce counts your rolls: 0, 1, 2, …
- For each roll we compute HMAC-SHA256(server seed, "client seed:nonce:0") and turn its first 4 bytes into a number f between 0 and 1.
- The roll is ⌊f × 10,000⌋: a whole number from 0 to 9,999. Your win chance and direction (over or under) set the threshold the roll has to beat.
- Rotate your seed pair in the game's Fairness panel to reveal the old server seed. You can then check its hash and recompute every roll you made with it.
Verify a round
Paste a bet ID, or enter the revealed server seed, your client seed and the nonce, then press Verify.
Play it free
Roll a few times, rotate your seed, then come back and check them.
Questions
- Is the dice game rigged?
- No. Each roll is fixed by a server seed we commit to before you bet and a client seed you control, so neither side can choose it. You can recompute any roll once the seed is revealed.
- What numbers can the dice roll?
- Any whole number from 0 to 9,999, each equally likely. Your win chance sets how many of those 10,000 numbers win.
- Why do I have to rotate my seed to verify?
- While a server seed is in use it must stay secret, or future rolls could be predicted. Rotating retires it and reveals it, so every roll made with it can be checked.
- What is the RTP of Dice?
- About 97%. Multipliers are set from your win chance so that, on average, a roll returns 97% of the stake.
- Is this dice game free?
- Yes. You play with free virtual coins. There are no real-money bets and no withdrawals.