7. Hail Sithis!
Another Dark Brotherhood mission? I hear you ask. yes, indeed. (They were all fun). This one sees the Dragonborn gain vengeance on Commander Maro, who had earlier burned down the Dark Brotherhood's Sanctuary, killing all inside. The player has also learned of the whereabouts of Skyrim's Emperor, who must be killed so that the Imperials can be overthrown and the Stormcloaks can gain ascendancy. The Emperor is aboard a ship called the Katariah, and the Dragonborn must infiltrate it, kill its crew and murder the Emperor once and for all. Killing the Emperor is easy enough, much easier than killing all of the crew aboard the ship, but it's still a fun mission.