Seems that this ideas are only for Inca tag, if not +1 colonist to the various tags in the andes will be to much imho.
So the city state that reach to form Inca empire, can be seriously the ruler of all south america, there are an idea group, or single ideas for the states in the andes, like Cusco or Chimu?
They said something about a new, better tech group for the Inca group. South American tech will be just the wandering tribes of the Amazon and La Plata.It's amusing that people are worrying about some colonist being OP when we're talking about the lowest tier tech group in the game. AI will never make much of that.
Inca ideas are solid overall, good mix of money and expansion for its region, IMO significantly better than Aztec's.
Also, taking anything other than exploration 1st as human Inca is absurd. You will delay westernization by decades and miss out on having 3 colonists with boosted growth rate; no other idea group could possibly cover that opportunity cost.
I think that would be far more appropriate for it's precursor Cuzco/Andean ideas than for Incan ideas (you now, they could be planned as well)No diplomatic abilities? Most Inca conquests involved no battles, just a show of force and a few bribes. Meh, these seem a bit cliche but they'll do.