Buildings and production

• Land and zones

  How your city's map is laid out, how zones are bought, how many a building needs, and what happens to land you leave empty or sell.

• Production and efficiency

  How buildings collect production points and turn them into goods, what efficiency does, how buildings age, and where finished goods go.

• Upgrading buildings

  The three building upgrades, when a factory or shop can take them, what they cost and what limits apply.

• Offices and services

  How offices earn money by selling their staff's work to the city, either as services at daily prices or as jobs, and how they are paid.