ok, had a game of the dwarfs, on a huge hemisphere 3 continent map.
first thing i noticed was that subterrainian doubles summoned units time. that cant be on purpose.
second thing was that Subterranean needs some benefit because only buildign on hills is quite a dissadvantage (but a cool one that i like) i suggest maybe bonus production from hills and ability to work peaks, and perhaps also be able to build cottages on all hill types (Ice, tundra, desert, plains, grassland etc etc.)
luckily i had the skaven on my continent so i was ableto see how the AI handles subterranean too. unfortunately they seem kindof confused by it becasue i had the skaven building cities 1 square appart in really hilly reagions, but ignoring hills that are standing on their own that would make excelent city locations. (like in a massive jungle area with a hill surounded by dyes and a banana). but i didnt find that this weakend them in the least they were still better than quaite a few other civs.
About the religions: as the dwarves i obviously founded the ancestor gods instantly, that shocked me
, so im thinking "all right, cool, rush priests and convert skaven and beastmen (my only neighbors) to ancestors" but lo and behold, they wouldnt convert
that made me sad. as i had no freinds on my continent and war was immnent so i tried to befriend them and we were getting along really well ( at one stage skaven were pleased with me) and then all of a sudden they start demanding tribute (even though i was way tougher than them) and declare war on me when i refused. seems quite wierd to me really. (although i knew it was going to happen eventually)
also the AI still really rely heavily on cattapults and chariots, which is odd too (but i know you know this, just repeating it for the sake of it
)
i had one error message throughout the whole game (posted below) regarding the insane trait.