About
SimCity (1989) by Maxis pioneered the city-building simulation genre; the simulation engine this project runs on is itself descended from the original SimCity source. 3d.city renders a live city simulation in full 3D, directly in the browser via WebGL2 or WebGPU, with no download required. It pairs Three.js for real-time rendering (custom shaders, textures, and models) with micropolisJS — an open-source simulation engine descended from the original SimCity source — running in a dedicated Web Worker so simulation and rendering don't block each other. The README describes it as a long-term, still-evolving project.
How it differs from the original
Where the underlying simulation core (micropolisJS) is a fairly faithful port of SimCity's original logic, this project's own contribution is the real-time 3D presentation layer built on top of it — camera, models, shaders, and effects.
Getting started
Playable directly in a browser tab, no installation needed. Two versions are offered: a WebGL2 build for broader compatibility and a WebGPU build for browsers that support the newer API.
Known limitations
- feature: Save and loading functionality needs to be fixed.
- feature: Disaster effects need improvement.
Media
Additional notes
- Development status
- sporadic
- Content type
- open
- Langs
- JavaScript
- Frameworks
- three.js, Sea3D
- Licenses
- GPL3