This release is the first in a series about gathering and craft. Today we've released Mining skill along with its supporting skill - Gathering. Now you can spot veins of Tin Ore in dungeons and mine it. The more you mine the more you progress in the Mining skill. The better your mining skill, the better chance of getting ore from the vein. Also you need Mining skill of at least 10% to spot veins of Lead Ore.
At the moment you can just sell the ore or stockpile it for the later use (which I recommend). With the upcoming version 0.9 you'll be able to smelt this ore into ingots. Using ingots you will make armor and weapons.