I was hoping the Dverger would have an element of this. Maybe along the line of how Minecraft does it, with trading of things, since they're kind of a "lost" people/culture and would need certain resources sometimes. But, alas they're just more meat for the grinder, and considering they're 'guarding' stuff you need to advance, a bit too difficult when you're talking the mages...stars aside (which are also far too prevalent).

Coins still seem largely useless...Once you've bought a few of things that you need, you don't really need to buy more. Other than the occasional catastrophic death. lol