Buildings
Wilderness - is land without any building on it, what you get from exploring and what you leave after pillaging.
Farms - Give food for a lot population and army, houses little population
Towns - House a lot of population and recruited army, population that generates geld
Nodes - Give mana, the main resource for performing magic.
Workshops - Expensive buildings that control the speed at which you can build.
Guilds - Buildings where you study magic, to learn spells and add them to your spellbook and to produce items.
Barracks - Buildings where you train population to be recruited for your army.
Fortress - Buildings that guard your kingdom and protect your army a bit in Siege battles.
Barriers - Surreal buildings that give resistance against enemy magic from affecting your kingdom.
Buildings and battles
Pillages, when succesfull, burn Farms, Towns, Workshops, Guilds to Wilderness
Regular attacks, when won, destroy Farms, Towns, Nodes, Workshops, Guilds, Barracks, Wilderness and Barriers
Siege attacks, when won, destroy Forts, Farms, Towns, Nodes, Workshops, Guilds, Barracks, Wilderness and Barriers.