Pretty early on in Dragon Age: The Veilguard, you’ll arrive at the crossroads and receive the quest “The Heart of Corruption” when you interact with your first Blight-sealed door. While you might think that this is just a side quest, you might be surprised to find that this quest will take you quite a long way into the game to complete. You’ll need to do a bunch of exploration and defeat a few pretty strong bosses, so this quest isn’t for the faint of heart.