To join the Volkihar Clan in Skyrim, complete the "Dawnguard" DLC questline by siding with Lord Harkon's clan. Progress through the storyline until you are offered the option to become a vampire lord and pledge loyalty to the Volkihar vampires. Complete the necessary quests to gain membership into the clan.
Exploring Dawnguard Expansion
To become a member of the Volkihar Clan in Skyrim, you need to have the Dawnguard expansion pack installed. This downloadable content (DLC) adds the option to join either the Dawnguard, a group of vampire hunters, or the Volkihar Clan, a powerful group of vampires led by Lord Harkon, to the base Skyrim game. Once you have purchased and installed the Dawnguard expansion, you can start your journey to join the Volkihar Clan.
Beginning the Journey
Start your journey by traveling to the city of Riften and speaking with an orc named Durak. Durak is a member of the Dawnguard and can be found just outside of Riften, usually near the city's stables. Durak will approach you as you enter Riften and offer you the chance to join the Dawnguard. While you can join the Dawnguard at this point, you can also express your interest in joining the Volkihar Clan instead. Durak will then point you towards Castle Volkihar and instruct you to speak with Serana, a member of the clan.
Meeting Serana
With your next destination set as Castle Volkihar, head towards the castle which is located on an island in the far northwest of Skyrim. Once at the castle's entrance, you will be greeted by its imposing gates guarded by two gargoyles. You will need to gain entry into the castle to progress further in your quest to join the Volkihar Clan. Serana will make an exit from the castle temporarily and the gates will open. Talk to her and let her know your intention to join the Volkihar Clan.
Continuing the Questline
Serana is pivotal to the questline that will lead you to officially joining the Volkihar Clan. Travel with her to various locations as part of the questline, and she will eventually offer you the chance to become a vampire. Accepting this offer will make you eligible to officially join the Volkihar Clan. Follow Serana's guidance through the questline, as she will lead you towards achieving your goal of becoming a member of the clan.
Becoming a Member of the Volkihar Clan
After progressing through the questline with Serana, you will eventually be given the choice to become a vampire lord. Accepting this offer will transform your character into a powerful vampire with unique abilities. This transformation also solidifies your membership within the Volkihar Clan. You will be granted access to Castle Volkihar and welcomed as a member of the clan by Lord Harkon himself. This marks the completion of your journey to become a member of the Volkihar Clan in Skyrim.
Embracing the Dark Powers
As a member of the Volkihar Clan, you will have access to a range of vampiric powers and abilities that can enhance your gameplay experience. These powers include abilities such as Vampiric Drain, Vampiric Seduction, and Night Powers exclusive to vampire lords. Embrace these dark powers and wield them in your adventures throughout Skyrim as a member of the powerful Volkihar Clan.