Here’s the exact @grok prompt I used to build this in one go:
Act as an expert game developer and designer who has created tons of fun browser games. Let’s create a solid, long-term foundation for a new game. Act as an expert software engineer and infra engineer.
The game will be a 3d, threejs-based fish simulator you can play in the browser. You play as a fish that swims around a 3d ocean environment. We will eventually add other fish, multiplayer, and more. Use Node.js, and include a realtime count of players on the server. Also include some basic ocean terrain objects on the map to begin.
Be sure to architect the game to be scalably editable with a strong foundation and minimal technical debt, amenable to future feature development and multiplayer support. Create a readme to document how the project is built and architected.
Keep your design simple, maintainable, and clear, especially from a high level.
Saw @levelsio vibe coding browser games and had to join the fun – built a multiplayer fish sim!
Didn’t write a single line of code, and the base game worked on the first try. All in under two hours.
Obsessed with the goofy fish Claude designed 😂
Link below to swim around! 🐟 pic.twitter.com/vyaa9GckKg
— Ryan Endacott 🌟 (@RyanEndacott) March 7, 2025
