This technical tutorial guides readers through the process of building and deploying a full-stack decentralized application (dApp) crypto game on the Ethereum Goerli test network, focusing on storing and verifying quiz questions and answers on the blockchain using a cryptographic hash function, keccak256, to ensure answer security. It employs test-driven development with Foundry to create and test smart contracts in Solidity, while establishing a connection between a SvelteKit frontend and the blockchain via a user's wallet for interaction. The tutorial further explores creating a factory contract to manage multiple quizzes, deploying the contracts, and developing a user interface to add, fund, and answer quiz questions, with suggestions for enhancements such as using Chainlink Automation for timed questions or splitting prizes among multiple winners.