Kalypso Media just released a new video for Patrician IV: Conquest by Trade, their upcoming trading simulation that casts players in the role of a middle-ages era merchant. The video gives an overview of the construction features within the game, and shows how players, through the shrewd use of the town architect, can plan and build the kinds of structures and businesses that are key to expanding the player’s trading empire.

Patrician IV will be available for PC in September.