Fit to theme
Blacksmith, Trys to simulate a blacksmith enviroment by making and mining for resources. As well as trading

Bug Free
I don't know, I've testing it and from what i can see there is none. If there is some sorry.

Function
Yes... Why is this a question?

Uniqueness
/shrug, Not fully a copy. Idea might be similar to what has been done before. You can check the github activity log if you want