[@Dawnscroll], let me think... Arcon humans have fire, bows, and stuff like that. To bring about metalworking would take maybe 1 Might (since it's a fairly big step) (maybe you can get away with a freepoint or two, though). You would want a freepoint to bring about agriculture, so that the people can stay put long enough to mine metals. Add 1 for domestication. Give another FP to mining, so you can actually mine them. Maybe another FP or MP to bring about a higher structure of civilisation. Since you've blessed Arcon humans to develop on their own, the intervening time would have plugged any remaining gaps in the tech tree.