Meh, I tried out the settings above and the AI didn't feel all that aggressive actually. I mostly noticed they were more open to war bribes... which would make the game easier if anything. Raging barbs can be a bit shocking when you're not used to it, but it's fairly predictable: Once you've weathered the 3000 BC - 2000 BC zombie onslaught, it's mostly over.
So I think you really have to have always war on for a different type of cultural game.
I then tried out an industrial start, always war. It seems alright, but really I think an ancient start would be so much more fun. Industrial starts are awkward in that it takes so long to actually start teching something and with always war on, even more so. An ancient start forces you to consider which religions you're going for (as the AI religions will never spread to you) while having to make sure you have a fit enough army to defend your land.
So how about this:
Victory: Cultural
Difficulty: Immortal
Starting Era: Ancient
Map Size: Standard
Map Type: Pangaea
Civ: Sitting Bull / Native America
Opponents: Montezuma, Shaka, Alexander, Hannibal, Caesar, Genghis Khan.
Required: Always war, Raging barbarians
So I think you really have to have always war on for a different type of cultural game.
I then tried out an industrial start, always war. It seems alright, but really I think an ancient start would be so much more fun. Industrial starts are awkward in that it takes so long to actually start teching something and with always war on, even more so. An ancient start forces you to consider which religions you're going for (as the AI religions will never spread to you) while having to make sure you have a fit enough army to defend your land.
So how about this:
Victory: Cultural
Difficulty: Immortal
Starting Era: Ancient
Map Size: Standard
Map Type: Pangaea
Civ: Sitting Bull / Native America
Opponents: Montezuma, Shaka, Alexander, Hannibal, Caesar, Genghis Khan.
Required: Always war, Raging barbarians