Age of Civilizations 2. One must have a certain technology level to build Buildings or colonise provinces. Each technology level is numbered. The range goes from 0.01, to 2.0. A player must spend money on research or build a library to increase what is called research progress. As the level increases, the amount of points required to get to the next technology level increases exponentially. Each next level amplifies the amount of money gained and the daily generation of Diplomacy Points.
Community content is available under CC-BY-SA unless otherwise noted.