You will need two types of buildings to produce useful goods.

Factories produce raw materials that you will need for further production. All factories produce the same set of raw materials. By leveling up, you will be able to build more factories. By increasing the population limit you will get access to larger factories that can produce a larger amount of raw materials.

In Stores, you can produce unique goods from raw materials obtained in factories. Each store has its own range. For example, in the Hardware store you can get fasteners, paper and ceramics, and in the Tool Store - scissors and hammers. You can build one store of each type. The higher your level is, the more Stores are available to you.

In the Warehouse you can store products which are manufactured at Factories and Stores. Upgrade the Warehouse building to get more storage space.

Make items in Stores to complete orders and earn profits.