Really getting trade routes down now and liking a lot of the concepts. Russia was giving me some shit, denouncing me, etc. so I shifted all their trade routes to the Mayans the next time it came up and suddenly they wanted to be friends and stuff again. In a prior game the World Council decided the Mongols needed to be embargoed and they went in the toliet for a long while.
Messed around with this a little, mod that makes the One City Challenge apply for every Civ:
http://steamcommunity.com/sharedfiles/filedetails/?id=135339418It ran into some obvious problems just after the mid-game. Most likely because I picked a huge map.

In my current game the AI completely ignored building down the East side of this continent for some reason despite the Mayans and Dutch being along the West. There's coal and gems and crap all over the damn place so I'm somewhat spam building cities to try and make a wall along it. Especially to keep out Russia who's the only one who seems to be trying to expand and blocked off my way along the North I was expanding towards by placing random cities in horrible locations. (Plus I had only like two coal in my entire empire and these are all spots with 10 or so.) And I've got so much damn gold to waste.
spoiler (click to show/hide)
Playing as Poland

I'm still a little unsure about the one unit per tile thing, maybe two would work better. But I'm only at around 200 hours with all versions of the game.
Will have to check out the scenarios after this game, I really liked some of the original/DLC ones.
Probably already been posted or seen by everyone since it's from Feb, but came across this article where Jon Shafer discussed some of the lessons he learned from the flaws of Civ V's design:
http://www.kickstarter.com/projects/jonshafer/jon-shafers-at-the-gates/posts/404789EDIT: Is there any way to NOT make a proposal to the World Council? Am I missing something obvious?