What are the different “speeds” for the game?
There are 4 different speeds for Civ4: Quick, Normal, Epic, and Marathon. The longer the speed, the longer it will take for things such as building units, growing cities, expanding borders, and researching technologies. As it implies, Normal is the speed that the game is probably best played on if you want an average length game. Be warned, however, that Marathon games really do last a very long time!
