Oblivion Remastered: How To Join The Dark Brotherhood

One of the many factions you can join in The Elder Scrolls 4: Oblivion Remastered is the Dark Brotherhood, a secretive circle of assassins-for-hire. While there are lots of one-off sidequests scattered throughout Cyrodiil, the five main factions - the Mages Guild, the Fighters Guild, the Thieves Guild, the Arena, and the Dark Brotherhood - are the most reliable sources of side content and achievements in Oblivion. Each faction's questline provides a wide variety of rewards pertaining to the specific combat styles it's most closely associated with.