FGSD is an OpenSource interactive program that allow its user to design custom sceneries for the FlightGear flight simulator project. It is developed under the terms of the GNU General Public License

FlightGear has already sceneries for the whole Earth ( see here ) but usually, available free data are too coarse to make realistic views of the world, especially for land outside the USA.

The basic idea is to use scan of commercial maps and other bitmap data to help users to draw features on top of the image layer. Features includes static 3D objects (buildings for instance), height (hypso) curves, land use contours, roads, railways and powerlines, water area or streams.

License: free

Additional System Requirements: