Following on the heels of Thunderstone Advance: Towers of Ruin, Thunderstone goes underground into the Caverns of Bane.

The first three Thunderstone Bearers are defeated. In the aftermath, the adventurers find clues leading to the abandoned Dwarven kingdom of Caligin, beneath the fortress at Cheah Dell.
Caverns of Bane contains new challenges and allies in the growing Thunderstone Advance game. This expansion includes:

* Vicious burrowing worms.
* Horrifying bat monsters.
* Regenerating subterranean trolls.
* 3 new Thunderstone Bearers add extra challenge.
* 7 new heroes!
* 6 new monster groups!
* 14 new village cards!
* A new way to play with treasures! Monsters carry treasures, and use them against you. But when you slay them, you gain the power of the treasure for yourself.