59.08 At Maori Gamplay video How about Medival and Renaissance walls? They both provide 100 outer defense, too. As well as 3 city strength per level of wall instead of 2. This is sure to help the defense side , at least archer rush may not work for 100 outer defense cities I guess. And now, surely , upgrading star fort to modern defense loses 100 outer defense and 9 city strength.