Resources

Wood, iron, stone, and villagers are the most vital components of the game that let you build up your village and train your army.

Resources and villagers are generated automatically if you have a Sawmill (wood), Mine (iron), Quarry (stone), and Mill (villagers). The amount generated per hour depends on the level of their respective buildings.

There is also a limit to the maximum number of each that the village can hold at a time which is determined by the levels of the Warehouse (resources) and Oven (villagers).

The “Resources” tab in the HUD, located above the village map, gives a quick overview of the current resource status of the village.

Resource/Villager Usage
Resources are "used up" as soon as a construction or training is started and, once used, are gone forever. Construction and training cannot be started if the number of resources available is less that what is required.

Villagers operate slightly differently. They do not get "used up" but are instead employed. That means that they still take up population slots while being unavailable for use in further constructions or training. To get more available villagers, upgrade your Oven and wait until the Mill produces more villagers.