Revision as of 10:34, 9 February 2022 by Admin(talk | contribs)(Created page with "{{ScienceUpgrade|name=Fortification |img=Fortification.png |era=Ⅳ Era}} == Description == Increases the durability of all buildings. == Bonus == 0 / 10 / 20 / 30 / 40 / 50...")
