Dungeon Solitaire is an original fantasy card game. Monsters are flooding up through the Castle Wolfcairn's tunnels after a prison break went bad.

Players must carefully place heroes, monsters, items, treasures, and trap cards into the dungeon chambers. When a hero and monster face each other, a battle ensues and the strongest will survive. Players win the game by filling up the castle dungeon with heroes, and lose the game if the dungeons are filled by monsters, who will slowly start to destroy the castle.