The following buildings are useful in your town.

Building	How to unlock
Castle	Your main structure that must be upgraded to unlock new buildings. If your castle falls during a battle, it will end in defeat.
Coin Vault	Stores coins generated by the market and battles.
Defensive Structures	Walls, cannons, and archer towers that are unlocked as you defeat enemies.
Dojo	Allows you to queue and train warriors. Training speed can be shortened with Diamonds. Additional troop types will become available as you complete missions.
Essence Well	Produces Essence required to train troops. Each type of soldier requires a certain amount of Essence to train.
Market	Generates coins over time.
Practice Yard	Receives troops from the dojo and holds them until they are deployed.