[Award Winner] Cartographical Economics and Demographics - A Guide to Realism

[atpollard]

So it's okay to have a planet a third the size of Earth, as long as it has about thrice Earth's density. (So for example a small planet with a very heavy core.)

Earth is already close to the density of iron (that large iron-nickel core), so a world with half the density of earth is far more likely than double the density of earth and you will quickly bump into a “depleted uranium core” upper limit on non-magical density.

2/ Gold pieces... in my opinion (as a student in economy) most fantasy writers do this wrong. Gold is extremely heavy, almost three times heavier than iron (the same volume), and therefore, it is highly
unrealistic to compare gold coins to modern day dollar in equivalence.

I agree … US$1 (or 1 Euro) should be closer to a traditional ‘copper piece’ with GP reserved for large transactions (like $100 bills).
(deflate the treasure hoards and costs)

[medecinqui]

I chanced upon this while looking for help rendering the economy of my Dungeons and Dragons setting, and I'd just like to say Thank you.

[rahta]

First, I want to say how awesome and useful these materials are and how thankful I am. I love details so in the future I will use them quite often. Before that I have just a question though, excuse me if it’s a silly one. What does “kingdom age” exactly stand for?
I mean, let’s take Kingdom A. The realm as we know it, exist already for, let’s say, something like 650-700 years. However, because no world is so flat in history aspect, the territory had been occupied by other, early civilizations much more years before that no matter if they were just tribal or more advanced. So in this case which age should I write down? The years after it was officially founded as a realm or the year when the territory itself was occupied by the first ancestors? I am asking because when I thought about it, all of them should have left some ruins after themselves as well. Should they be reflected in the chart?