Coinflip, the simplest bet in the casino

Heads or tails, double or nothing. Crypto Coinflip is about as pure as casino betting gets: pick a side, set your stake, and the coin decides. No paylines to learn, no strategy charts, no waiting around. It is the game people open when they want a fast answer.

The flip settles on Sui using on-chain randomness. Open the settled transaction to inspect the bet, result and payout.

How a round works

Choose heads or tails, enter your stake and review the quoted payout before you flip. A winning payout includes the returned stake; a loss spends it. Each round is independent, so a long streak of tails does not tell you what comes next.

Odds and bankroll

A winning flip pays exactly 2x your stake, including the original stake. Results can swing widely over a short session, so set a spending limit and stop when you reach it.

Frequently asked questions

Is crypto coinflip provably fair?

Yes. The outcome comes from on-chain randomness and the bet settles in a public smart contract, so you can trace any flip back to the transaction that decided it rather than trusting a private server.

What is the payout on a winning flip?

A winning side pays exactly 2x your stake, including the original stake. You either receive the 2x payout on a win or lose the stake on a loss.

Can I automate coinflip bets?

Yes. The auto-bet mode lets you set a number of rounds and rules for raising or lowering your stake on wins and losses, so you can run a strategy without clicking every flip.