Legends are just exciting tales to tell each other in the dark, right? That's not always the case in the world of Terraria. Alex's Dwarven friend Durim has hinted in the past towards the existence of a legendary dungeon filled to the brim with treasure, along with unspeakable horrors. Alex never gave the story much thought, until Durim claimed he saw for himself the ancient dungeon and its guardian. The Corruption still lingers in the world, eager as ever to devour everything in its path. Although victorious in the past, the intense battles are starting to take their toll on the hero. Will Alex risk facing yet another terrifying creature of legend if it means stopping the Corruption?