Raw resource ores are distributed all over the map. (Only the resources in the middle are the same every time! Everything around is randomly generated.) Most of them are used in the manufacturing of processed resources in factories.
Crystals function as in-game credit, and can be used to upgrade or buy buildings. However, they need to be transported to the Base to do so. Also they can upgrade buildings.
Wood is used in the manufacturing of Tree Trunks in the Sawmill, which are used to make Arrows in the Arrow Factory. Also raw wood is used in the Steel Factory, which is used to make the arrow heads in the Arrow Factory. Without wood, arrows cannot be made, hence decommissioning arrow towers.
Uranium is used in the manufacturing of Nuclear Power in the Nuclear Reactor and Shields in the Shield Tower. This is needed to increase security in walls and to provide ammunition for the Lightning Tower.
The resources produced in the factories.
Produced by Cannon Ball Factory by using iron. Functions as ammunition for Cannon.