A deck-building strategy duel for stakes on the NADO execution layer. Start with 10 humble cards, buy engines and victory piles from a shared supply, and out-build your opponent. Every move is logged on-chain, every shuffle draws its randomness from future L1 block hashes — provably fair, nobody (not even the shuffler) can rig a deck. The full rules run in your browser; the pot settles by concede / mutual agreement / refund-timeout. Post-quantum wallet, no install.
Signed by your NADO wallet — confirm each move there, then bounce back; your key never touches this site.
Challenge anyone — join an open duel or watch one in progress.
The contract is a pure wager escrow + move log — the full rules are refereed in your browser, and every move lands on-chain in order.
• Shuffles: each move pins a future block hash as its randomness — signed before the block exists, so neither player (nor the node) can rig a deck, and both browsers re-derive identical decks.
• Decisive game: the loser concedes and the winner is paid. Draw: both agree — stakes refund.
• Stall or dispute: after the move deadline either player claims a refund. The only outcomes are concede / agree / refund — no one can ever be robbed; at worst a wager voids. The contract is upgradable.