Due to its sheer amount of HP, the Orickalkos Wall is the second best wall in the game, surpassing the Egyptian Citadel Walls' HP by 100, which makes it the ideal wall for a formidable defense. Only the Chinese Great Wall surpasses the Orichalkos Wall, by 100 HP. This, however, is offset by the fact that they are much more expensive, comparatively speaking, than normal walls (although still cheap), and the fact that they require four upgrades to be built instead of three like the Citadel Walls.