Roulette
up to ×36
Pick a chip and tap a spot on the table. Right-click removes chips.Long-press removes chips.
Your rounds will show up here
Bet, outcome and payout of every round. Any of them can be re-checked in the “Provably fair” tab.
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Outcome locked in advanceBefore you bet you see the SHA-256 hash of the server seed. After that the outcome can’t be changed.
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Your client seed is in the formulaThe outcome also depends on your seed, so neither side can rig it in advance.
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Any round can be verifiedRotating the pair reveals the server seed. Verify a round here or with your own script.
Active pair
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Verify a round
How the result is calculated
float[i] = HMAC_SHA256(server_seed, "client_seed:nonce:cursor"), 4 bytes per number 0 ≤ f < 1 number = floor(float[0] × 37) — a number from 0 to 36, each with a 1/37 chance. Payout = bets on spots that include the number × 36 (number), × 3 (dozen, column), × 2 (color, even/odd, 1–18/19–36). The wheel uses the standard European layout: 0, 32, 15, 19, 4, 21, 2, 25, 17, 34, 6, 27, 13, 36, 11, 30, 8, 23, 10, 5, 24, 16, 33, 1, 20, 14, 31, 9, 22, 18, 29, 7, 28, 12, 35, 3, 26.
How to play
- Pick a chip below the table and tap a spot: a number, color, even or odd, half, dozen or column. Each extra tap adds another chip.
- Right-click removes chips from a spot (long-press on a phone). “Undo” reverts the last action, “Double” doubles every bet.
- “Spin” — the ball stops on one of 37 numbers. Winning spots pay per the table, and your bets stay on the table: the next spin repeats them.
Table limit — $10,000 ÷ multiplier, at most $5,000 per spin. Autobet repeats the chips you’ve placed. “Increase” after a win or loss scales every bet on the table proportionally.
Payouts
| Bet | Numbers | Pays | Chance |
|---|---|---|---|
| Straight number, incl. 0 | 1 | 35:1 | 2.70% |
| Dozen, column | 12 | 2:1 | 32.43% |
| Color, even/odd, 1–18/19–36 | 18 | 1:1 | 48.65% |
Every bet returns the same: 36 out of 37, i.e. 97.3%. Zero is green: every bet loses on it except a bet on 0.
