The Cavern of Gandum introduces two exciting new elements to Treasure Mountain: spells and the automa deck. It is recommended you become familiar with the base game before playing with this expansion.
Spells allow you to bend the rules of the game while placing dwarves, collecting resources, and fighting dragons. Spells are fueled with purple mana gems that are mined from new mine tile types or gathered in new spaces on the expansion board.
The automa decks add solo and enhanced two player experiences using dummy players. Dummy player actions are controlled using the automa decks.