EDIT: In addition to a dll, this component adds two new tags to CivilizationInfos "iMinEra" and "iMaxEra." A civ cannot start in a game that is started in an era later than its MaxEra or earlier than its MinEra. Thus for example, Sumeria cannot be started after the classical era (max era=2) and America cannot be started prior to the Rennaissance (min era =4). Of course, if you don't like my decisions about when civs fit, you can easily mod the xml.
Earlier versions had problems which have been fixed and included non germane material that has been removed. Change sources are in the download.
http://forums.civfanatics.com/downloads.php?do=file&id=12661
Earlier versions had problems which have been fixed and included non germane material that has been removed. Change sources are in the download.
http://forums.civfanatics.com/downloads.php?do=file&id=12661