Fish Tank
in-progressRemember those old Windows fish tank screensavers? I always wanted to make one, so why not now? Why not multiplayer? Why not 3D? Built with Threlte (Three.js + Svelte) using the same movement system from the multiplayer homepage—I had multiplayer dots swimming around in about 5 minutes, then thought... let's make it three-dimensional.
Last updated: December 07, 2025
Goals
- ✓ Create project page
- ✓ Copy movement logic from homepage
- ✓ Start rendering in 3D
- ✓ Add random shapes to the scene
- ☐ Learn 3D scene composition
- ☐ Add more todos
Development Log
Initial build: 2D to 3D multiplayer fish tank
Started with a basic 2D multiplayer fish tank using SVG and PartyKit WebSockets—had fish swimming around in about 5 minutes. Then converted to 3D using Threlte (Three.js + Svelte). Fish are now stunning oval shapes with eyes (so you know which way they're going) and rotate when swimming. Added photorealistic decorations: gravel floor (flat plane), rocks (spheres), and plants (cylinders). Practically indistinguishable from a real aquarium.
