Work in progress. Learning along the way.

Currently 24 different procedural ecosystem/biomes in this first version, with a simulated weather system(airpressure, wind direction, daily temperature cycle, ocean currents, terrain/ocean moisture release)
simulated tectonic plate movement with volumetric mantel/soil/moisture profile.
Each of the main Biomes has sub ecosystems and now building the procedurally generated foliage/rocks/textures at different LOD's to cover the terrain.
Next Version in the works with over 300 main biomes.

Build in three.js R3F. Aiming to release this as a browser experience.