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Crypto dice in USDC: pick your chance, get your multiplier
Dice is the simplest casino game. A number from 0.00 to 99.99 is rolled and you bet that it lands under or over your chosen line. You set the win chance yourself, from 0.20% to 95%, and the multiplier is 96 divided by the chance: 1.92× at 50%, 9.6× at 10%. The RTP is 96% at any chance.
How to play
Choose a bet from $0.10 to $12.50.
Set the chance or the multiplier; the other one follows. Pick Under or Over.
Roll. The result is instant. For a series there is autobet with rules on win and loss.
Chance and multiplier
| Chance | Multiplier | Win on a $1 bet |
|---|---|---|
| 95% | 1.0105× | $1.01 |
| 90% | 1.0666× | $1.06 |
| 75% | 1.28× | $1.28 |
| 50% | 1.92× | $1.92 |
| 25% | 3.84× | $3.84 |
| 10% | 9.6× | $9.60 |
| 5% | 19.2× | $19.20 |
| 2% | 48× | $48.00 |
| 1% | 96× | $96.00 |
Game formula: multiplier = ⌊96,000,000 / (chance × 100)⌋ / 10,000. Use the dice calculator for any other chance.
Why it is fair
Roll = ⌊k × 10,000 / 2³²⌋ / 100, where k is the first 4 bytes of HMAC-SHA256 (key: the server seed, message: client seed:nonce:0). Example: def / abc / 1 → k = 1,849,153,629 → 43.05. Check it in the verifier.
Strategy
A 48–50% chance is close to a coin flip. Neither martingale nor a ladder beats the 4% house edge; strategies only change variance.
Limits
FAQ
What is the best dice strategy?
No strategy beats a 4% house edge. Strategies only change variance.
Is crypto dice rigged?
Not if you can verify it. You see the server seed hash before rolling and the seed after rotation.
Which chance should I pick?
The RTP is 96% at any chance. A high chance gives frequent small wins, a low one rare big wins.
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