Given areas will have various amounts and types of resources. In this game, the standard measure of area will be one square mile. Each square mile will have it's own set of resources which list what is there. Most resources will have a couple ratings associated with them.

• The first of these ratings is the "Sum" rating. A Sum rating is how much of something is there. If you find a area with peaches that have a Sum of 1000, this means there are peach trees with 1000 units worth of fruit on them. If you find a flock of sheep with a Sum rating of 300, it means there is a flock of 300 sheep.

• The second score is one referred to as "Replacement". A replacement is a quantity of a resource that can be taken in a month without effecting the sum. Fruit like peaches tend to have a high replacement ratio because you can pick a lot of them and more will simple grow on the undamaged trees. Animals tend to have low replacement rates, but you can generally still take a couple here and there and not effect herd size too much. Vegetables are somewhat in the middle in terms of replacement ratios. Replacement rates are given in a percentage. That represents a portion of the Sum. Calculated replacement figures are always rounded down. Because of how the numbers work, when you take more than the resources replacement rate, the Sum is negatively impacted and the amount replaced each month drops in correlation.

When a resource is discovered and adequately studied, you will be told the Sum and Replacement numbers of that resource. This being the case, you will get two numbers divided by a slash. The first will be the Sum, the second the Replacement. An example would look like this. Cattle 250 / 2%. In this case, 5 cattle could be taken each month without affecting the Sum of total animals there. Were you to kill 100 cattle, the sum would drop to 155. With the Sum down to 155, the 2% replacement rate would mean only 3 cattle would be replaced next month.

• Some resources have what is known as a "Resource Abundance Rating". This is used instead of Sum and Replacement. It is used most commonly in areas where a resource far extends a given area. Sea creatures like fish often use a Resource Abundance Rating. This means that fish from a large source come to the area when others are taken out. A fishing pond would have a sum and refreshment rating. A beach would have a Resource Abundance Rating. This number simply represents the maximum amount or units of that resource that are available each month. There is no need to worry about Sum and Replacement figures because the resource is part of a massive ecosystem far too large to be effected by small towns.

• A fourth term commonly used is Incidental. Any common plant or animal not listed as being a resource in an area, yet is appropriate for that terrain is considered to be there in "Incidental Quantity". This means that there are likely to be some there, just not in such numbers as to be of any serious consideration. This means a skilled hunter has a chance to get an occasional dear or horse in any area even if there not listed as a local resource because they are considered an "Incidental Resource". By the same token, a good forager could likely bring back a couple of apples in most places even if they are not a local resource because apples would be considered an "Incidental Resource". "Incidental Resources" can only be found in small quantities with great effort. Finding a specific "Incidental Resources" is up the discretion of the Game Master and may be unlikely at all based on the GM's opinion of how rare that thing may be. Other "Incidental Resources" can be quite common in small quantities and can easily result from activities like hunting and gathering.

• The fifth type of resource is Infinite. These resources are effectively unlimited. No matter how hard a civilization tries, they can't use up all the water in the ocean or even dig up all the stone beneath their feet. How much you can take is only a matter of labor and storage.

• Buried mineral resources are a bit more complicated. Like all resources, they have a Sum value. They do not have a Replacement value, what's removed is forever gone. Mineral deposits will be categorized as "Placer", "Exposed", "Buried" or "Deeply Buried". Placer minerals are literally washed out of the earth by ground water and exist in streams. Exposed deposits are not covered with other dirt or rock and can be accessed directly. Buried and Deeply Buried minerals are beneath the earth and must be dug down to before being exploited. Minerals which are Buried or Deeply Buried have a Reach Value which indicates how much material must be removed before a buried deposit can be made contact with. Lastly many minerals have a Grade and Host Material. Basically, even when you reach the copper vain, only a percentage of the material you extract will be copper ore, the rest will be Host material that the ore is intermingled with. If you find a copper ore deposit with a 10% grade, you will have to mine 10 units of the vain to get 1 unit of copper ore and 9 units of it's Host Material (often limestone).