Multiplayer games are the coolest: they bring us closer together, even when we’re battling it out. While you can’t build World of Warcraft in a weekend, you also don’t need a big AAA game studio production team to create a game that is fun and engaging. All you need is good old React with some Three.js and WebSocket magic sprinkled in! This talk walks you through creating a simple multiplayer game in the browser using React Three Fiber and Socket.IO. You will learn how to structure the game code, render an interactive 3D scene in the browser, and establish two-way communication between the client and server.