In Brave New World, many Wonders may only be constructed once a player unlocks a certain Social Policy tree or adopts a certain Ideology.Ī city that controls an improved source of Marble receives a 15% Production bonus when constructing Wonders, but only in the Ancient and Classical Eras. They don't depend on resources or the presence of other buildings, though. World Wonders may have terrain prerequisites, too.

That means that if another civilization manages to build a Wonder before you, neither you nor anyone else may build it anymore. What's more, they can only be built once in the whole world. They cost much more Production points to be built, and cannot be purchased with currency. Those are unique mega-buildings, representing real-world-famous buildings, for the purposes of the game. You can also sell buildings - go to the city screen, then find the building you want to sell in the list to the right, and click on it, then confirm. For more information on selling buildings, see below.Ĭertain buildings are called World Wonders. Most of the time, the requirement also includes the resources in question to be improved (i.e., have the necessary improvement in working condition, but not necessarily worked by a Citizen).Īlmost all buildings cost some Gold per turn as maintenance. A Forge, for example, may be built only if there is Iron nearby. Resources - For this requirement, certain Resources must be controlled by the city (i.e., this city must be working them).Others require the presence of a Mountain within 1 or 2 tiles of the city. Some buildings require the city tile to border a River or the Coast. Terrain features - Some buildings require the city tile (the one on which the city is placed) or a nearby tile to contain a particular type of terrain or feature, such as flat terrain or Hills.Other buildings - Many of the buildings in the game are organized in 'chains,' or 'trees' - those that are further up the chain, or tree, will require the ones preceding them.The following types of prerequisites determine whether or not you can construct a building in a particular city:

It will appear in the list, but will be grayed out. Many times building construction is subject to prerequisites - in this case, the building may not be built or bought in this city until you meet the prerequisites. Click on the 'Change Production' button bellow to assign a new construction project for the city, or on the 'Purchase' button to instantly buy a building with some currency. To do this, go to the city screen, and look to the left - there you'll see a list of all buildings available to build or purchase. They may be built in a city via the normal production process, or bought instantly with currency ( Gold or Faith). Buildings are unlocked after researching particular technologies (except the Monument, which is unlocked from the start of the game).

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