This tutorial guides users through the creation of a Web3 game, specifically a Tamagotchi-like decentralized application (dApp) called EmojiGotchi, which is entirely stored on the blockchain. Utilizing Foundry and SvelteKit for Ethereum development, the tutorial walks through setting up a mono-repo project structure, developing smart contracts using Solidity, and managing NFT minting and metadata. The step-by-step process includes building and testing functionalities such as feeding and playing with the EmojiGotchi, updating its image based on happiness levels, and ensuring contract compatibility with Chainlink Keepers for automated updates. Additionally, the guide covers the creation of a SvelteKit-based frontend to interact with the NFT, including wallet connection, contract integration, and a dynamic interface for managing the EmojiGotchi's attributes in real time. Users are encouraged to register their dApp with Chainlink Keepers to enable automated maintenance, ensuring the EmojiGotchi's stats are regularly updated.