Upgrading
Upgrades improve the health points and defendability of structures. This can be the difference between holding off the enemies banging on the gate and them breaking through. Anyone in the nation can begin or complete upgrades at nation held locations. There is a weekly title called Architect for the person who upgrades the most. Visit the Architect's Table to begin upgrades.
Upgrading structures offers excellent experience points, but is resource intensive.
Upgrades cannot begin while there is a siege in progress, until 3 minutes after a siege ends. If any buildings are on fire, those fires must be put out before upgrades can happen.
Walls, gatehouses, and towers have 6 levels of possible upgrades. Each upgrade level improves the Health Points of the Structure. Level 4 and above are immune to fire damage.
1. Palisade - A weak, basic wood wall with a walkway and limited cover. 2. Wood - A wooden structure. Towers and bastions receive ballistas at level 2 and they persist at all higher levels. 3. Strong Wood - Strong wooden structures with roofs on towers, walls and gatehouses, offering decent protection. 4. Weak Stone - An inflammable stone and wood structure 5. Stone - Inflammable stone structures with roofed walls, gatehouses, and towers, offering excellent protection. 6. Strong Stone - Inflammable stone structures with roofed walls, gatehouses, and towers, offering the very best protection.
Upgrading guardhouses improves the level of the guards.
Improving inns increases the level of the Herbalists workshop, where food is cooked and alchemy is done.
At Guild Provinces, guilds can upgrade structures up to their guild level. A level 3 guild can have level 3 structures, for example.