[Doo]

From a powergamer viewpoint some ages are more desirable if playing certain classes.

For example the early age that has fewer farms and towns is great for the druid when facing the baron, as the druid lives primarily off fungus from forests which will be abundant while the baron relies on money which will be harder to come by. Switch to a developed era when there are plenty of towns and less forests, then the baron has a relative advantage.

At least CoE2 was like this.