Downloading FastTerrain 2.0 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available. We recommend checking the downloaded files with any free antivirus.
The program's installer file is generally known as FastTerrain.exe. The most popular versions of the FastTerrain 2.0 and 1.0. The program lies within Photo & Graphics Tools, more precisely 3D Design. This free tool was originally developed by Diolkos3D.
From the developer:
In FastTerrain you are able to create, edit and visualize in 3D space digital terrain models. The program includes functionalities for break-lines and holes insertion as well as volume calculations and contours lines creation. With FastTerrain you can estimate excavation volumes by using digital terrain models (DTMs). Perfect choice for Civil Engineers, Surveyors, Architects in every day practice.
You may want to check out more software, such as Panorama Tools, Smart Map or eDrawings for SketchUp, which might be similar to FastTerrain.