Use of buildings. The Barracks are used for both taxes and recruitment. Setting tax levels high, will enable you to afford more for your army. High taxes though will also decrease the amount of people joining up voluntarily. The Drill is needed to obtain sufficient stone and metals. Don't place it too close to civilisation as they won't be very happy. Houses are an obvious necessity for people to live in. As your inventions progress and new ideas discovered, the variety of household buildings will increase, allowing for families etc. Shops provide a source of income and a way of getting rid of any surplus goods from your warehouse. You can also sell goods to other players. Taverns are a good source of boosting morale and more importantly attracting outsiders. These outsiders will offer you information on the location of the precious jewels, at a price of course. Temples are a necessity for the storage of the precious jewels, of which seven are needed to complete the game. Also available in the Temple is the ability to make an offering to your preferred deity, serving to boost morale. Warehouses are essential for storage of raw materials for longer than one season. Without materials you are unable to build anything. Wells are obviously an essential source of water, and is needed if your going to survive. The Workshops are another essential buildings. Used by the Inventors and Blacksmiths to design and produce all your weapons, vehicles etc.