This is possible if the given civilization only has one unique unit. This means that the civilization will retain its unique units' advantages in subsequent eras, as long as they keep upgrading the same units (and not, for example, build the equivalent newer units). But in many cases, their unique abilities may transfer to more modern units, when they're upgraded. Unique units are generally most effective during the era they appear, and often possess unique features and/or abilities that the regular ones do not. Each of these units replaces a generic unit of a given era. The unique ability is always active throughout the entire game, although its efficiency might not be the same as the game progresses. Each player adopts a single civilization at the setup of each game.īesides the name, history and leader, every civilization has a set of unique features which set it apart from the others and give it particular advantages These features are:
A civilization is a specific historical nation, which represents a player in the game.