The source code to the cancelled BATTLE FOR THE SOLAR SYSTEM tie-in video game has been posted in the BFTSS downloads page, along with some screenshots. The code works, can be compiled and run, with several of the missions playable. The game is no longer in development (and hasn't been for quite some time). The sources are licensed under the GNU General Public License for whatever purpose. Note that the GPL license does not extend to the resources (that is to say, the data, graphics, music and sound).
You can download the file here - http://www.battleforthesolarsystem.com/downloads/#bftssgplsources
-- posted via http://www.battleforthesolarsystem.com