There are 4 types of basic resources: Gold, Timber, Food, and Iron.

Access to All Resources
You can produce the 4 main resources in the resource buildings of dwellings, sawmills, farmlands, and mines. You can also obtain them from related features and events in the game, like prayers, markets, etc. The 4 main resources each have their own special functions, which play a significant part in the development process of the game and will not work without either one. Players need to allocate resources according to the needs of different periods to prepare for contingencies

Use of the Four Resources
Gold: Buy equipment, recruit generals, upgrade buildings and exchange for other resources on the black
Timber: Upgrade buildings.
Food: Recruit soldiers, play for more Raid Bosses and move worldwide.
Iron: Upgrade weapons.