Smoopadoop wrote:What do you think?
I think it's a very good idea.
Depending on "country" and age they have been used and manipulated in very different ways. Depending on that a speciallized industry is required, because "making" stone bricks its a totally different proces than the adobe ones.
Also they could be just normal big rocks or boulders, like those used in the pyriness area for example:

This house looks quite modern, so its probably not a good example. But you can see on it the kind of materials used. That house is from la vall d'Aran, in the south of the Pyrinees.
From the wikipedia
Cement, chemically speaking, is a product including lime as the primary curing ingredient, but it is far from the first material used for cementation. The Babylonians and Assyrians used bitumen to bind together burnt brick or alabaster slabs. In Egypt stone blocks were cemented together with mortar, a combination of sand and roughly burnt gypsum (CaSO4·2H2O), which often contained calcium carbonate (CaCO3).High or later iron age on nordic countries lasted until IX Century AC if I'm right.
What I don't know is if this fits in the nordic lands of haven, where extreme cold was something unavoidable.
Nothing a bit of research cannot answer. I'll have a look.
I see this very plausible.
Edit: Right now you can endlessly dig ore and materials from the first lyer if you dig on mountains. Thats not logical in a game where resources have limits. Even if their q wony go much far. The solution could be making stone mountains leverable, at least a bit enough to run out of materials. Some stone falls could be added to make it more real.