The Future of Decentralized Gaming
100% transparent, provably fair casino games built on Solana blockchain.
Onchainbets is the world's first fully decentralized casino built on Solana. Every game, every bet, and every payout happens entirely on-chain with complete transparency and provable fairness.
Unlike traditional online casinos that rely on centralized servers and hidden algorithms, Onchainbets operates through smart contracts where every outcome is verifiable and every transaction is public.
Experience the future of gaming where trust is built into the code, not promised by corporations.
Onchainbets offers 11 fully on-chain games, each designed for fairness, speed, and excitement.
Bet on a number range (1–100). Win if roll falls in range.
Spin the reels. Match symbols. Win big.
Heads or tails. 50/50 odds. Double or nothing.
Guess if the next card is higher or lower. Chain wins to increase payout.
Avoid mines on a 5x5 grid. Uncover tiles to multiply your bet.
European-style (0–36). Bet on numbers, colors, or ranges.
Plinko: Drop a ball through pegs. Landing bin determines payout.
Crash: Watch a multiplier rise. Cash out before it crashes.
Blackjack: Classic 21. Beat the dealer. On-chain logic.
Jackpot: Progressive prize pool funded by a % of every bet. Randomly triggered.
Plinko Race: Multiplayer Plinko. Players drop simultaneously. Highest win wins extra.
All games are built with on-chain randomness and transparent payout logic.
Before the game, your browser generates a client seed (never sent to us).
A commit hash (SHA256 of the seed) is stored on-chain.
After the game, the Solana block hash is used as the server seed.
The final outcome is computed from: SHA256(client_seed + block_hash)
✅ No one — not even the developers — can manipulate the outcome after your bet is placed.
🔍 You can verify the result at any time using your seed and the transaction data.
Click "Connect" in the top-right corner and choose your wallet:
Browse the game grid and click any title: Dice, Slots, Flip, HiLo, Mines, Roulette, Plinko, Crash, Blackjack, Jackpot, Plinko Race.
💡 Tip: Use FAKE tokens in demo mode to practice risk-free.
Launch v1.0 with 11 fully on-chain games and provably fair system.
Introduce $BETS token with staking rewards and community governance.
Complete third-party security audit by leading blockchain security firms.
Native mobile applications for iOS and Android platforms.
Expand to Ethereum L2s, Sei, and other high-performance blockchains.