FFS will the people ever stop posting about things that aren't logical AND are not in direct connection to Europe on this forum ??? Face it people: the game is called Europe Universalis III and devs only showed attention to European history, the rest of the world is just there for someone who wants to conquer it, or as someone nicely called it "a speed bump". From this game you can't expect anything from Asia, Africa, Americas or Australia exept accurately named provinces, capitols and names of the nations. My advice is to play European nation a couple of times, then start some good mod, and for heavens sake in most cases DON'T play non-European power because it is (in almost all cases) totally going to get on your nerves because almost nothing is as it should been. Ofc, you could try to edit the game, add events in effort to add some realism to it, but believe me it is a very hard and very, very long process

.
Now, it looks like I will have to create a template post for all the stupidities people assume about native americans (and unfortunately there are tons of 'em), but until then I will have to settle on these short historical lectures (that will probably be discarded by the same ones posting stupidities because these kind of posts are too big for them to read it... but with some luck maybe one or two will read them and stop speaking nonsense).
Concerning Incas:
Their country WAS named Incan Empire (not because it sounds nicely or because it neetly rolls of the tongue, but because it was really an Empire with a real Emperor - son of the Sun, or God or both... very similar to Pharoahs -made of flash and blood... honestly!)... And as I posted on other topic, I will post again the same question: does anyone think that an Empire with millions and millions of subjects can be ruled by an TRIBAL CHIEF ? If you do think so... well I think its best for you that you keep it for your self.
Saying that Incas had inferior masonry or that they didn't have it at all is just like saying that 2+2 is 17... Incas not only knew about masonry, they were masters of it. Incan Masonry was one of the things Europeans NEVER EVER managed to come even near. If you go to most of the cities in todays Peru or Equador (spelling check?) or any of the S.American cities that were built on remains of Incan fortresses and cities, you will see architecture that is not older that 100 years most (with few exeptions ofc) that were built on or around ruins of Incan cities. The walls Inca built were meant to stay for a long long time. They could easily withstand an earthquake of 8 richter, they didn't have any sort of spacing between the stones used during construction (even now, after 500 years you cannot slip even a piece of paper between the spacing of the rocks used during building...), forcing an entrance in Incan wall using siege equipment is just plain madness. Also, Mayas and Aztecs also knew how to build walls, strongholds and fortresses, but they were nowhere near the Incan work (for that matter neither were Europeans).
Boblof explains some points of Incan demise nicely so it would be nice if (like there is that possibility) to read his post, it is shorter than this one and more easy to follow and understand.
As for Incan weapons, they used
copper weapons, and yes, they really were sharp Aethis.
And as insolet1 pointed out (again something I'm trying to prove to people but they just don't follow), NA hugely underestimated the Europeans... really... big time...
The "unortodox" way Europeans managed sieges, insolet1 is talking about is actually 2 occasions when 1)Spaniards, with the help of the current Incan Emperor went to a ball where most of the high ranking members of royal court, generals, statesmen and generally most of the important people in the country were gathered together and slew them all (it was Incan tradition not to bring any kind of weapons to that kind of event, and doing so would be breaking one of the oldest law)... They were slaughtered like sheep, because they couldn't run away (Spaniards barred the huge doors and there was no way to exit the hall they were in). Other occasion where NA were doomed by their own fortifications was when Spaniards burned the roof of the fort and all of the people inside suffocated or died in fire (if I remember correctly - probably not the case - it was during the final siege of Mexico City).