Gambling game based on a smart contract with a specific drawing period. Three game cases with different cost and size of the final prize.

A blockchain-based slot machine equivalent. Players can buy up to 10 tickets (10% commission), with a draw every 15 minutes. The prize is the sum of bets minus the commission. The chance of winning increases with the number of tickets. The smart contract-based game ensures transparency and prevents manipulation. Results are determined by an Oracle algorithm. Statistics on games, top players, and draw history are available. To participate, a metamask— a cryptocurrency wallet for Google Chrome— is required.

This case is interesting due to specific performance features with smart contracts. It comes about transparency of results, players anonymity, high degree of data protection and the instant withdrawal of winnings to a crypto wallet.