I just played a single player game and lost outta nowhere after 500 turns, I was in the last AI's base and lost. I'm not sure how I lost, did he win through some kind of cultural victory? He did reach Future Era long before I did. Also some of my cities were starving and I had my workers set on auto but I guess they didn't build enough farms around the cities? How do I fix this problem? I feel if I built more farms, then it would take away from the mines and trading posts and other stuff. Quite confused. Is there some sort of strategy guide or explanation I can read to better help me understand the game? This is my first Civ game. Thanks!