NADO Coin Flip

🎮 All games

A provably-fair, staked 2-player coin flip on the NADO execution layer. Both stake NADO into a pot; the winner takes it all. No secrets, no flip to sign — once both are in, the coin is decided by a future L1 block hash nobody can predict (parity of HASH(blockhash ‖ game)). You sign once: your stake. Post-quantum wallet, no install.

Wallet

Signed by your NADO wallet — confirm each move there, then bounce back; your key never touches this site. Stakes live in the execution layer: deposit NADO to bet, withdraw winnings any time.

Playing asnot signed in
Wallet — NADO (main chain)
🪙 Tokens (stakeable)

🎲 Public games

Every game lives in public state — browse open tables and join anyone, or watch games in progress. ⏳ open · ▶ playing · ✓ done

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🏆 Scoreboard

Global standings across every finished game — ranked by net NADO won.

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Provably fair — no secrets, no flip to sign

The coin is decided entirely by the chain: HASH(blockhash(H) ‖ blockhash(H+1) ‖ game) mod 2.
Nobody can bias it. When the second player joins, the game is bound to a future settle block. Those block hashes don't exist yet when either of you stakes, so neither player — nor the block producer — can know or steer the result (two blocks are mixed so no single miner can grind it).
No secret, no flip step. You sign once — your stake. There's nothing to reveal and nothing to withhold.
A sore loser can't stall you. Once the settle block is finalized, anyone can settle the game and the chain pays the pot to the winner. Before an opponent joins, the opener can cancel and reclaim. Escrow and payout reconcile exactly on-chain — nothing minted or lost.

🎯 Practice — free, in your browser

Same game, play chips: nothing touches the chain, no wallet needed. When you're ready for real NADO, use the tables above.

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