Darkkender
Chieftain
I read through a few of the various info threads however I can't seem to find any info related to how many Hero units your Civ is allowed to have. The reason I wonder is because I've managed to unlock the capability to build more hero's through technologies however I can't build them even when all of the requirements have been met. I think I have about 5 or 6 currently built. I suppose I could understand the desire to limit hero units however I think of them more like wonders if you can manage to pump them out before another Civ you have a serious tactical advantage much like resource denial tactics.