[CountHackulus]

There's any number of ways this could be improved. Better layout, better textures, different building types, stochastic city planning/zoning. But this is a nice starting place that shows off a few easy techniques. Probably good enough to use in a JS1K demo.

[delluminatus]

Well, it uses Three.js (too heavily to easily remove the dependency, I think), so it wouldn't work for js1k.

[CountHackulus]

Well not literally no, but the algorithm is certainly applicable.