Connecting to arena 0 online Play money only. Take breaks.
Trust the maths.
Check the kick.
The house commits to its server seed before your run. When it ends, the seed is revealed. Reproduce every keeper choice here, entirely in your browser.
Before you play
Keep the server seed’s SHA-256 hash. Choose your own client seed.
For every shot
HMAC-SHA256(serverSeed, clientSeed:nonce) determines the keeper’s zone. Nonces start at zero.
After the whistle
Check the revealed seed against its hash, then reproduce the outcome.
The digest is interpreted as an unsigned integer and mapped modulo 3: left, centre, right. An all-ff digest is rejected and retried to remove modulo bias.
The fairness verifier
Finish a solo run to reveal its seed, or paste a transcript.
Keep it a game. Play money only. No purchases, withdrawals or cash value. Take breaks and play responsibly.
Just for the love of the game.