Game Efficiencies (FAQ)

Goods needed to advance thru each age   .....  https://www.foeguides.com/goods-required-per-era/

Goods sources.........................................................  https://forgeofempires.fandom.com/wiki/Goods#Great_Buildings

Above does not include the Sleigh builder ...  https://forgeofempires.fandom.com/wiki/Sleigh_Builder

much more to come