Dwar7s Fall: The Dragon's Forge

from the publisher:

Dragon Forge, an expansion for Dwar7s Fall, can be added along with any other expansion of the game and it works with any number of players.
It takes decades to hatch a dragon egg... and then years to train a dragon. But in the end, you have a formidable ally to create magical weapons and go into battle!

Dragon's Forge takes place years after the Empires expansion. Place the volcano starting tiles at the middle of the board. Then, beg the dragons to transform your precious gems into dragon glass. Use dragon glass and the ogres to help the blacksmith forge epic weapons!

But beware...

Dragons have been seen marching upon our lands!