Okay how is this going to work? Turn Based, free for all? 
Is the aim to sell some amazing new inventions to lords and ladies to better the world? Or to gain as much as we can?
If it's about being the next Leonardo Da Vinci then are we just going to decide what to build and it will just happen and everything will be better or will there be events and rivalries and contracts to fight for from evil and good lords and ladies?