I tend to get construction last among the ancient techs, navigation last among the medieval, and flight last among the industrial age techs. But it's always a struggle trying to figure out which one I least need to rush to.
Has anybody ever finished the entire modern era techs?
Most optional techs I don't research. I'm a Republic player, so I don't research things like Democracy, Monarchy, Navigation. I'll take a trade, however.
Last in AA is usually Polytheism.
Medieval - Metallurgy. Obsoletes the Statue of Zeus, which I love.
Industrial - usually Flight. I go hard to Replaceable Parts and then Motorized Transportation for Tanks.
Has anybody ever finished the entire modern era techs?
Free Artistry is very useful for a 20k game.