Valtra Tractors is a computer version of a board game with the same name. This computer version is coded by Martin Storsjö and the graphics are made by Markus Storsjö.
Valtra Tractors is distributed under the GNU General Public License (GPL). The game is available in binary form for Windows and MacOS X, and as source code, compileable on Windows, MacOS X and Linux. Because it uses SDL, it is easily portable to other operating systems.