NERO Gotchi

NEROGotchi is a blockchain-based virtual pet game that reimagines the nostalgic Tamagotchi experience using the power of NERO Chain. Built to showcase frictionless blockchain gaming, it introduces Blockagotchis—fully on-chain, evolvable NFT pets with rich interactivity, rarity traits, and user-owned progression.

🎮 Key Features 🧬 Unique Digital Pets

Each Blockagotchi is an ERC-721 NFT with unique traits: species, stage, and rare variants like "Shiny" and "Origin".

Only 100 eggs can ever be hatched, and origin-tagged Blockagotchis will hold permanent prestige.

🔁 Evolution System

Pets evolve through distinct stages (Blob → Child → Teen → Adult → Old).

Race may change across stages, giving your Blockagotchi a new appearance and gameplay profile.

⚙️ On-Chain Game Logic

All interactions (feeding, bathing, exercising, etc.) are fully executed on-chain using NERO smart contracts.

Player stats like happiness, health, and experience are stored and updated directly via smart contract calls.

📊 Leaderboard System

A fully on-chain ranking system evaluates Blockagotchis based on their age, happiness, and experience.

🕹️ Retro UX

NEROGotchi includes a nostalgic, NES-inspired frontend, built in React, giving it pixelated charm with full responsiveness.

🧾 Full Ownership & Interoperability

All pets are NFTs on NERO Chain—players truly own their digital creatures and can trade, sell, or integrate them into other NERO-based dApps.

⚙️ Technical Stack Smart Contracts:

Built with Solidity and deployed on NERO Chain using its EVM-compatible Layer 1.

Account Abstraction (AA) allows using smart wallets instead of EOAs.

Frontend:

React + TypeScript for an immersive and interactive interface.

Uses NERO's UserOpSDK and Paymaster API for gas abstraction.

Blockchain Interaction:

Uses ethers.js and the @nerochain/aa-userop-sdk to:

Create and manage AA wallets.

Send gasless or ERC-20 token-based transactions via Paymasters.

Gas Abstraction:

Supports Type 0 (free transactions sponsored by the app) and Type 1/2 (ERC-20 prepay/postpay) payment methods via the NERO Paymaster system.