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← Back to articlesRoulette · Provably fair on Sui · Jul 24, 2026

Crypto Roulette

Crypto roulette on Llamabet is the classic wheel rebuilt for the chain: the winning number is committed to Sui before you place a single chip, the full board of inside and outside bets is open from 1 SUI, and winnings settle to your own wallet the moment the ball stops. No cashier, no pending withdrawal, no trust required.

Spin the wheel →

The full board, on-chain

Llamabet roulette gives you the complete layout you would find at any serious table. Outside bets cover broad swathes of the wheel: red or black, odd or even, high (19-36) or low (1-18), each paying even money; dozens and columns cover twelve numbers apiece and pay 2:1. Inside bets are the precision plays: a straight-up bet on a single number pays 35:1, a split across two adjacent numbers pays 17:1, a street of three pays 11:1, a corner of four pays 8:1, and a six-line pays 5:1. You can stack as many bets as you like on a single spin, mixing safe outside coverage with a few long-shot numbers — exactly how experienced players actually spread chips. Every bet is placed in SUI from a 1 SUI minimum, and every winning combination is paid out on-chain the instant the result lands.

Know your zero: 2.70% vs 5.26%

Roulette's house edge lives entirely in the zeros. On a European single-zero wheel there are 37 pockets but payouts are priced as if there were 36, which works out to a 2.70% house edge on every bet. Add a second zero — the American double-zero wheel with 38 pockets — and the edge nearly doubles to 5.26%, as documented by the Wizard of Odds. That is not a small difference: over the same volume of play, the double-zero wheel takes roughly twice as much from your stack. The payouts look identical on both wheels, which is exactly why casual players never notice they are paying double. Before you sit down at any roulette game, on-chain or off, count the zeros. It is the single most important number on the table, and it is the reason informed players treat wheel selection as the first and biggest strategic decision in roulette.

Inside vs outside is really a variance dial

Here is the honest math: on a given wheel, every standard roulette bet carries the same house edge. A straight-up number and a red/black bet cost you the same percentage in the long run. What changes is variance — how bumpy the ride is. Outside bets win almost half the time and pay even money, so your bankroll moves in small, frequent steps; a session can last hours on a modest stack. Inside bets win rarely and pay big, so your balance flatlines through long dry spells and then spikes 35x when a number hits. Neither is smarter than the other; they are different shapes of the same expected value. Pick outside bets if you want session length and steady action, inside bets if you want lottery-shaped upside, or blend both. What you should never do is believe a betting system changes the math — no progression staking scheme alters the edge on a fair wheel.

Committed before the ball drops

The core of Llamabet's fairness scheme is timing. Before betting opens, the server generates a secret seed and publishes its SHA-256 hash to the Sui blockchain — a binding, timestamped commitment the house cannot quietly rewrite. Your own client seed is mixed in when the spin resolves, so the winning number is a deterministic function of a secret fixed before your bet plus input the house does not control. After the round, the server seed is revealed. Anyone can hash it, match it against the on-chain commitment, and recompute the exact winning number from the published algorithm. If the house had swapped outcomes after seeing where your chips landed, the hashes would not match and the fraud would be publicly provable. That is a categorically stronger guarantee than a lab certificate on a black-box RNG.

Instant SUI payouts, self-custodial stack

Because Llamabet runs natively on Sui, a winning spin is not a ledger entry waiting for a support team — it is an on-chain transaction that lands in your own wallet in about a second, with near-zero network fees. There is no withdrawal queue, no minimum cash-out, no 3-5 business days. Getting started is just as light: sign in with Google and zkLogin derives a self-custodial Sui wallet with no seed phrase and nothing to install, or connect an existing Sui wallet such as Slush. The house never takes custody of your funds between spins. Play a number, win, and the SUI is spendable before the wheel graphic finishes celebrating. One practical note on stakes: because every bet type shares the same edge, the 1 SUI minimum applies per bet, so you can spread a handful of small positions across the board — a dozen here, a corner there — and still keep total exposure modest while you learn how the table behaves.

Why verifiability matters most in roulette

Roulette is the purest chance game in the casino. There are no decisions after the chips are down, no strategy chart, no skill component to blame or credit — the entire product is the integrity of one random number. That makes it the game where a crooked operator has the most room to cheat invisibly: shade the RNG a fraction of a percent against the popular bets and no player could ever distinguish it from bad luck. A blackjack player can at least sanity-check dealt cards against expected frequencies over thousands of hands; a roulette player betting straight-up numbers might see a handful of wins a session. In other words, roulette lives or dies on trust — which is precisely why it benefits more than any other game from replacing trust with proof. An on-chain commitment made before your bet, verifiable after, is the difference between hoping the wheel is fair and knowing it is.

Frequently asked questions

Is crypto roulette provably fair?

On Llamabet, yes. The winning number derives from a server seed whose hash is committed on the Sui blockchain before betting opens, combined with your client seed. After the spin the seed is revealed, so you can recompute the result and confirm it matches the pre-bet commitment.

What is the house edge in roulette?

It depends on the wheel: single-zero (European) roulette carries a 2.70% house edge, while double-zero (American) roulette carries 5.26%. Every standard bet on a given wheel has the same edge — inside and outside bets differ in variance, not in expected value.

What is the minimum bet and how fast are payouts?

The minimum bet is 1 SUI. Payouts are on-chain Sui transactions that settle to your own wallet in about a second after the ball lands — there is no withdrawal process because the house never holds your funds.

Sources

  • Wizard of Odds — Roulette odds, bets and house edge
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