I can't ever have enough civs in my games. Currently I'm playing with 34 civs on a fractal, low sea-level FX-Mammoth map (16,000 tiles), about 50% larger than the stock huge maps.
Having so many civs means that the world isn't centered around me. There may arise powerful contenders who vassalize several other civs. There may emerge a peaceful, cooperative tech club with excessive research while I'm waging wars. There may be whole continents with backwards civilizations that can be conquered. There may be an industrial powerhouse on the other side of this more-than-huge world, giving me the challenge to somehow stop it from building a spaceship. There may arise blocks of civs with a religion other than BudHindJewism. There may be whole world wars with dozens of civs involved.
I always try to maximize the number of civs in my games.
i can imagine on those maps, that religion is power lol, imagining all the money from having a dozen or so civilizations following your religion , imagining having a corporation and spreading it to the AI who will always spread it to its cities.. lets say 100 cities take it thats 500gpt before wall street ect!!
I can't ever have enough civs in my games. Currently I'm playing with 34 civs on a fractal, low sea-level FX-Mammoth map (16,000 tiles), about 50% larger than the stock huge maps.
There is a post in this thread that goes into it a little bit:
http://forums.civfanatics.com/showthread.php?t=241999