A Cannon Tower is converted from a Level 5 or higher Tower. The difference is that they are more effective against the Catapult and Helepolis but less effective against other units (see Damage Modifiers.)
| Structures |
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| Town Center Farms Vineyard Lumbermill Refinery Foundry Basement Training Ground Stable Workshop Barracks University Armory Blacksmith Tower Cannon Tower Trading Post Market |