HashGame Labs

HashGame is an on-chain prediction protocol built entirely on BTC block hash values as its core randomness source, powered by smart contracts and decentralized oracle networks. It operates fully on-chain—transparent, verifiable, unstoppable—without servers, custodians, or centralized intervention. By using the Bitcoin block hash as a natural entropy source, HashGame enables a truly fair, transparent, and fully verifiable real-time competitive gaming experience for players around the world. HashGame offers two core game modes: Classic Mode — Predict the last hexadecimal character of the BTC block hash. Simple, pure, and extremely beginner-friendly. Battle Royale Mode — BTC block hashes serve as random seeds to deterministically eliminate players across multiple rounds until a final winner emerges. Each match is uniquely bound to a BTC block height as its Game ID. With Bitcoin producing a new block roughly every 10 minutes, a new on-chain game is created at the exact same frequency. Once a new BTC block is mined, the corresponding Game ID is settled instantly — winners can claim rewards immediately. All data is immutable, traceable, fully verifiable, and executed automatically on-chain.