Farmingâ¦.one of the single most important aspects to the survival of your troops and city. Itâs probably actually misnamed, it gets confused to a lot of newer players with building farms in your resource fields. It should probably be called Robbing, because that is what youâll doâ¦.rob all of the resources form the level 5 NPCâs around you.That is how you should be acquiring your food and gold. From each level 5 NPC you will acquire (with proper troops and transports): 1  3,000,000 Food.  180,000 Lumber.