VoxRend is an OpenSource voxel graphic engine. It can be used to create games or simulations, but you can use it to get other graphic representations. Uses tile-maps and can load and render Ken's VOX files. Today it's inactive but I have plans for the
Vector Raster Geographic Information Synthesis. Incorporates Vector: Vector processing, Image processing, Digital Elevation Model DEM processing. These data can be combined to be viewed in 3D. Multitude of system organization aids.
3D space trade / action / colonization game seen from eyes of your player/cockpit . longterm : complex features in all aspects of game,
multiplayer. Generally every can join , more good people = better.