Gather your friends. Choose your characters. Fight together against deadly foes. This Ruin of Thandar Campaign Deck transforms Hero Realms into a cooperative, adventuring deckbuilding game. The Ruin of Thandar is a 150 card expansion that lets players play through a campaign cooperatively. To do so, players will need the base game as well as a character pack for each of the participating players. Requires the Hero Realms DBG and Character Packs.