That would be pretty interesting, don't you think? The world would be split up with, hmmm. . . probably six players at the most, scattered all throughout Earth, like in Risk, and decide where to focus and slowly work on uniting the areas that don't get conquered/ swallowed by culture. Additionally, Civ IV's battle style fits perfectly with Risk's dice roll attacks.
Whether leaving cultural take-overs in would be valid is unknown to me, but who agrees this would be a good idea?
Whether leaving cultural take-overs in would be valid is unknown to me, but who agrees this would be a good idea?