what is wrong with survey after colonization? Don't we survey this rock we are on over and over? e.g., as our technology increases there are things to be found that could not be found before.
Not saying it cant be done. But I am worried about the whole thing getting increasingly complicated to get to make sense, game design wise.
Yes we still survey our big rock with satellites and space stations and probably find things this way that we cannot see from the surface.
But I suspect that upon colonizing a new planet, most of its secrets could be found by colonists from the surface.
This already exists in the game as the colonization events that prompt the moral choices. It also exists in the form of the planetary tile bonuses. Such as Mineral rich and Ancient ruins. ( BTW what the hell are PlanetFalls and Cataracts? )
So what type of information about the planet would surveying provide that cannot be found otherwise by colonists?