Players are  adventurers and search for the Thunderstone in Grimhold Dungeon. Each player assembles his own deck with the abilities and equipment for his team. A card display is prepared according to exact rules. Then in each turn you must visit the village, enter the dungeon or rest. Cards that you played are discarded to your own personal pile, destroyed cards go out of the game. In the village you can acquire cards, in the dungeon you must use all cards currently in your hand and when you rest you can exchange cards or destroy cards. At the end, the player with most victory points in his deck wins.

The Introductory set features new heroes, new monsters, and new village cards, and offers quicker set-up and easy entry to the game.