Our favorite game has everything you need to start developing. Take clay pits as an example. All these are rather primitive technologies and, accordingly, the game needs analogs that allow at least to facilitate or speed up this process.
I suggest adding a multi-unit structure to the game, such as a clay kiln. I would like such a furnace to be made on the principle of a steel processing furnace or a coke oven.
As I can see it roughly: first we build this oven. In the oven itself, there should be grates for the flow of heat inside. As I read, the process of firing clay is gradual, that is, you need to keep different temperatures inside the furnace during the time of firing the clay. How to do it? Use different combustible materials at each stage of firing, from, say, peat to charcoal. You will say that it is dreary, but I will say that it is convenient due to the number of clay items that we can get.
Perhaps this is all that I could normally think of from multi-block structures. I would also like to see a smelter for the production of alloys on an industrial scale, but I have no idea how it works and how it can be properly balanced. Perhaps someone else will have their own ideas and wishes.