Note that farms are just a means to an end. The farms themselves only give you food which isn't what you're aiming for. It's the extra population and the high hammer and commerce tiles that you want to use. So once you've reached the desired size for your city, I would convert some extra food producing tiles into hammer or commerce producing tiles. You can see that I did that if you compare the second with the third screenshot of my previous post. Thanks to biology, the food output of the farms increased which meant that I needed less farms to feed all of the citizens. I turned them into commerce producing tiles. Now that you mention it, I noticed that you seemed to automate things a bit. That isn't necessarily very bad, but you usually can do a better job when you manage things yourself and choose which tiles to use instead of letting the governor make the choices for you. It's no use building a bunch of farms when the governor will not use them. The biggest negative result of automating things is that it doesn't allow you to specialise cities. The idea behind city specialisation is that it makes your empire more efficient. Some cities don't need every single building and the national wonders can be build in cities that maximise their effect. A city with a science output of 100 will make far better use of the Oxford university than a city with a science output of 20. Also the mechanics behind great person generation favour focussing the production of great person points in a few cities (one with the national epic). There are basically three types of specialised cities (with some variants): 1) The commerce city which you can see in the last screenshot of my previous post. These cities have a high commerce output, but the hammer output isn't that great. You want several of these cities as they will be the engines of your economy, they will be the main science generators and pay your bills. They need some hammers to build the necessary buildings to keep them healthy and happy and they need buildings to improve their science (and gold) output (library, observatory, etc.). They shouldn't be used to build many units and they shouldn't build your world wonders or space ship parts. Most cities can be turned into fairly good commerce cities and you can't have enough of these. 2) The great person farm. This city focusses on producing as much food as possible and typically has several food resources and lots of flat irrigated land. All of this food is used to hire specialists. The main idea of focussing all of these great person points in one city is that you'll generate more great persons that way. If you need 300 GP-points for the next great person, then it isn't useful to have 5 cities with 100GP points, but it is useful to have one city with 300 GP points. The city needs the buildings that allow you to assign specialists which you can get by whipping them (slavery). The caste system civic can also be used to get specialists but conflicts with the slavery civic. There are some national wonders which enhance such a city and these cities need the maximum amount of happiness and health that you can afford as they will become big. A city needs a high food output to be turned into a great person farm. You need multiple food resources and lots of flat land. A few great person farms (1-3 for me) is enough. 3) The production city. This city focusses on producing as many hammers as possible. It will be used to build your military units, to build your wonders and to build your space ship parts. When 2 civilisation invent a technology that allows a world wonder, then the one with the most productive city will win the wonder race. It doesn't need science buildings as it's commerce output is going to be fairly low. This is probably the hardest city to find a suitable location for. You need hills for hammers and food resources to feed your citizens which are working hills with a low food output. You need a few of these to build your units and wonders and space ship parts. These are the cities which will be the backbone behind your conquests. If you get the expansion packs, then you will want to settle the great generals in these cities. You can say a lot more about city specialisation and the subject usually leads to some discussion. The subject is also closely related to the type of economy that you run (discussions about specialist economies and cottage economies). If you specialise your cities like I outlined above, then you're running a somewhat mixed economy which is most effective in my opinion, but that is just my opinion and there are some who will disagree with me. Just check the war academy or the strategy articles forum for more discussion and articles on this matter. Here are some links about city specialisation from the war academy. (I didn't read them, so I can't vouch for their content, but war academy articles usually have a high standard. For instance, I don't agree with an often stated opinion that these specialised cities only need a small fraction of the total collection of buildings.) Guide to City Specialization and Land Improvements Specialization of Cities City Specialization: WHERE I do it.