Eternal Essence – Faster AI turn + smarter AI.

Why are you so harsh? Some people are just being creative – they create their own scripts and storylines. Usually, the authors of such maps warn that the map is a mod and that it should be deleted after completing it. A good example is this portal, where all experienced mapmakers warn about this possibility.
But you downloaded 620 maps, and there probably weren't any warnings that some of the maps change something in the game's resources.