It is compatible with Windows XP, Vista and 7, and is also compatible with the said 64-bit versions.
Two Japan-only building kits were released, the first on October 8, 2010 and the second on December 23, 2010. The Japan version also includes a 3D patch costing ¥1050 that can be played using 3D glasses, and the German version includes an unofficial patch that adds 200 trains to the game on top of the existing 11 trains.
A-Train 9 includes buses and trucks, grouped by distances they travel and the work they manage (e.g. intercity, local, heavy goods, etc.), power plants, Japanese castles and more authentic-looking Japanese buildings.