@EgonSpengler Zaarin and I were discussing the Hittites the other day - we have what we need for them. Not Cahokia though. But I don't agree with interpreting the Chinese dynasties as also-ran and almost-were. They were successive political iteration of one largely continuous civilization. Now I will say, your idea of pre-Qin unification warring states, THAT might be a case worth pursuing - except again we run into a little problem called "selling the game in China" (and "only so many spots in the game" - if we're going to have also-ran or almost-were, we might want to focus on the fallen empires of continents that got swept into post-renaissance European conquest first).