Modding/Maps

File Types

 * *.mi : very large text file that defines the mission
 * *.info : short text file that looks to define no more than the number of possible players.
 * map : large text file listing placement of features (buildings, roads, etc.).
 * interface.set : very small text file listing difficulty levels(?)

Useful Links
Developer GEM2 Map Editing Tutorial: this tutorial on Steam is a great guide.