I read through the files, and it seems like it should be interesting to play a map or two of Random Map Generator (RMG) with this mod, although some of the changes seemed very strange.
But that's just a superficial impression from reading the file) For now.
Added 7 minutes ago
Hmm. The GSC crashes instantly in the RMG version when attempting to generate in most cases. It doesn't crash if you don't change any settings at all. It doesn't even allow you to change the neutral creatures from the hard version to a more lenient one.
Added 3 minutes ago
I would assume that you can't change anything, but I didn't find such a note in the file, and the GSC interface looks well-designed, except for the inability to directly select one of the templates.
Added 1 minute ago
And now it crashed even without any changes to the map settings in GSC. The game is a clean 3.1 version.
Hello! There is a conflict somewhere. Make sure you are either running the game with the data files or launching the game with a shortcut that points to the maps folder. Mods are conflicting; there are only 2 templates, both for large maps (for now).