The project’s goal is the procedural generation of really huge spherical planets with following features:

• full-fledged river systems, highland lakes, and custom outlines of the continents;
• biomes with a placement dependent on longitude;
• the gradual transition of biomes is achieved by the mutual penetration of their parts (yin-yang boundary);
• various vector data defining the relief features (continents and lakes boundaries, riverbeds, biomes boundaries, height contours, tiles and sectors, etc);
• full size planets with correct spherical geometry of the relief features;
• the procedural generated planets are data instantly suited for existing Geographic Information System (GIS) software;

Sample planets

Pandemic. This planet has letter-shaped contents and planetary wide biomes. Pandemic planet’s page with data The big planet model with ocean sectors

Devil of the Rings (dotr). Specifically defined crater-like form of continents. The biomes are determined solely by altitude. This planet’s page with data The big planet model

For more info see my blog.

List of all sample planets can be found here.