Obviously this will depend on the size of the map and what you'd consider to be crowded. For me, it would be 3 civs that are so close that there's no room at all for another city between them (or perhaps with some room for a city in between). An example of this would be the placement of England, France, and the Netherlands on the YNAMP Giant Earth map. Another thing to consider is that, for those of you that don't care of TSL maps anyway, you can pick the regions that are only coincidentally filled by the civs that you really want. For example, if you aren't aiming to fill up Mesopotamia/The Middle East, you could list that region simply because you want Sumeria, Babylonia, and Assyria. With all that in mind, which regions would you like to see get crowded like Europe and the Middle East in TSL maps? Here are my picks: * West Africa: Mali is a mandatory start, but I'd like to see the coast get crowded with the Ashanti, Benin, Dahomey, etc. *Southeast Asia: I'd say that the Khmer should be surrounded by Burma, Vietnam, and the return of Siam. Note that Indonesia and the possible inclusion of the Philippines wouldn't really crowd it up since there's some breathing room by being further out on islands. *Mesoamerica: There's more to be shown about Mesoamerican history than just the Maya and Aztecs. They could be joined by the Purepecha, Mixtec, Zapotecs, etc. If that happened, I'd hope that Mexico would follow Japan in being made much larger by modders to make room for them. Mexico already feels tight even with just the Aztecs! *Northeast America: The colonial America and Canada could use some native neighbors with the return of the Iroquois and some possible new inclusions like the Powhatan, Wabanaki, Wampanoag, etc. Some other thoughts: Northeast Africa could be crowded but I'm not quite sure how close Ethiopia would be to the current Nubia and Egypt or to new options like Buganda or the Swahili. Some more Andean options would be cool but I'm not sure how many of them would be decent options after the Inca. More native civs would be great as well though the question would be how close those options would be to each other.