Lords of Evil is a strategic web game. Building different armed forces need different kinds of resources. If you want to concentrate on producing a certain army, you need to have a reasonable distribution to each kind of resource for this army according to the level of the three resource buildings. For example, 3k lumber and 1k ore are needed for producing one Halberdier/Hobgoblin/Monster, so the proportion of your lumber and ore production is 3:1, and the rest may be deduced by analogy.