That obviously will provide a greater benefit to a city with a base hammer income (production income in Civ is often called “hammers” because of the hammer icon used to represent it) of thirty than a hammer income of ten. A Windmill, for example, gives a 15% bonus to production. The second reason to specialize is the fact that many improvements have bonuses that provide percentage improvements. These fees quickly become prohibitively expense. Buildings also have upkeep fees that must be paid every turn. You can’t build everything because there just isn’t enough time to do so. Production resources are purposely harder to come by in Civilization V than in older Civilization titles. The first has to do with producing and maintaining buildings. Now, you may be wondering – why not just make all the cities you own great at everything? There are two reasons. Of your remaining two cities one is focused on science, to help keep you technologically competitive, and another is focused on production so that you can build the wonders and military units you need. To maximize gold production in these cities you build all of the economic improvements in them and you improve most of the tiles around them with trading posts. Those require gold to be maintained, however – a lot of it – so you devote three cities largely to gold production. You’ll want to build most or all of the cultural structures that you have access to. Cultural victory is often easier with small civilizations, so you may have settled five cities. Let’s say, for example, that you want to achieve a cultural victory. What do I mean by “specialize?” Specifically, I mean building cities so that they fulfill a function in your larger civilization that is required to achieve the victory conditions important to you.

Civilization 5,hearts of iron 4