[Cyrien]

I dunno. I have played a few games that had good engines but poor testing of certain aspects so that a little modding made them more fun to play.
For instace Emperor of the Fading Suns was a good game engine but poor execution of unit stats and resource ballancing etc in the actual game. Use on of the mods out for it and it becomes much better. Still with flaws but much better.

Unfortunatly I just couldn't find anything that could do that with some flaws in the bsic game engine of Civ3.