What is the best way to move up in difficulty level? Should I progressively go up as I begin to dominate at an easier level, or jump to a higher level in a sink or swim method? I've had a lot of games I've played in the past that were best learned by a specific method. What's the most effective way for Civ? I always win on Warlord, so I'm trying to decide if I should bump it up to Noble or go higher on my next day off.