CryptoKitties | Microschool Dev

CryptoKitties is a digital collectible game built on the Ethereum blockchain, launched in late 2017 by Axiom Zen. Players can buy, collect, breed, and sell unique virtual cats, each with distinct visual traits and a cryptographic hash. The game gained rapid popularity, famously causing significant congestion on the Ethereum network due to its high transaction volume. Its success demonstrated the potential of NFTs (Non-Fungible Tokens) for digital ownership and scarcity, influencing subsequent blockchain-based games and collectible projects.