Becoming a Vampire in Elder Scrolls Online has its benefits and downfalls. Turning your character in your ESO account into a Vampire can be done in two ways; with lots of ESO gold or lots of patience.
Become a Vampire and save ESO gold
The normal way to have a Vampire on your Elder Scrolls Online account is also the one with the lowest amount of ESO gold used. To do this, get your character contracted with Vampirism from Bloodfiends in Bangkorai, The Rift. They will then need to talk to Vorundil outside of Riften and complete a level 38 quest to get their skill line.
Vampirism for those with lots of ESO gold
For those who have plenty of ESO gold, either through selling Elder Scrolls Online armor, Elder Scrolls Online weapons or other Elder Scrolls Online items, Vampirism can essentially be bought. Characters that have level 6 in the Vampire skill line with the Blood Ritual skill can infect other characters with Vampirism. Be warned however that players can charge a lot of TESO gold for this “gift.”
