I searched for a while, and didn’t quite find a topic that has covered this, sorry if t has already been mentioned.
What resources would you like included in the game other than the obvious wood/stone/metals?
Interesting and luxury resouces, i think, would really add to the game, since i want my kingdom to be the most opulent.
For example, flint and slate would be a nice addition, early on and for military, for arrows and bolts. Also for a developed city for alternative roof styles using slate tiles.
Or possibly salt, to enhance food and keep meat fresh. Could be acquired from mining or even boiling sea water.