# Building & Upgrading You will need a vision so brilliant that it inspires a whole population. Build a city that your people truly worship, a city they will defend with conviction. Every BOFY city has 22 squares for your buildings, which will act as the supply chain for vital products that will be needed for your city to strike attacks or stand strong against invaders of the city. Buildings are the main instrument for any resource or production in the game. Every building level adds additional perks for the building or increases its capacity. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.bofy.io/game-mechanics-and-main-elements/building-and-upgrading.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.