This is your town HQ and the first construct you open. Its level determines both the max level you can upgrade other buildings to along with which buildings you can open up and when you open them up. Upgrading it will increase the Attack and Defense of your city as well as gives you boosts against Rebels during invasions.
Unlocks:
These are the features/ buildings that unlock as you level up your Town Center:
Town Center Level 2: Mill
Town Center Level 3: Quarry
Town Center Level 4: House 3, Clinic, Supressors�?Camp, Hero Hall
Town Center Level 5: House 4, Iron Mine
Town Center Level 6: House 5, Watchtower, Alliance, Court of Justice
Town Center Level 7: House 6, Barracks, Guard Station
Town Center Level 8: Embassy Arena, Monument, Range, Infirmary
Town Center Level 9: Storehouse, Academy, Stable
Town Center Level 10: House 7, House 8, Command Center
Town Center Level 11: Enlistment Office
Town Center Level 13: Drill Camp
Town Center Level 15: Hero Gear
Town Center Level 20: Mastery Forging
Town Center Level 22: Gorvernor Gears
Town Center Level 25: Governor Charms
Town Center Level 30: Truegold Levels
List by Daryl