Started a game in a dry world. I thought it would be interesting, that it would slow things down a little. As a high elf wizard with a lot of nature books, I thought it would help me in that I would be able to do some terraforming of desert (although that is hard to abuse because there are a limited number of turns when you have the luxury of being able to spend your spell power on tile improvements) but I also figured it would hurt me in that elves give you spell power based on pop, and most of cities would be smaller and grow more slowly.
As it turns out, a dry world has another huge impact. At least in my playthrough, one of my rivals drew vastly superior land, compared to the other rivals (at least on Arcanus), so rather than the extended game period of 3-4 rivals neck and neck, trading the lead, one quickly became the elephant in the room.
It’s made for an interesting game, but I don’t think I would set up a dry world again. If I really wanted to play against one AI opponent, that is what I would set up. I like having a whole bunch of viable competitors during mid-game.
I have decided, though, on a clear favorite race in the game. High elves. Their elven lords are really, really powerful. And now I have some with adamantium!