[Skunkmeister]

There doesnt seem to be a limit in map size for the game, however there does seem to be a limit for the average machine.

At one point I made a 1:1 scale map_c of a pacific islands chain that was 29952 x 7424, and the game did not want to load the ed_m01 map (kneemap), it just gave me a white blank screen. You could zoom in and see the land masses however.

The big thing about creating large maps is not only getting them to run, but also to actually get them in a workable format and size without it being a resource hog. Working large map_c files will make computers with 2gigs of ram and a good cpu crawl and beg for mercy.