As part of the latest yearlong narrative dubbed 'The Dark Heart of Skyrim' this year's major expansion for The Elder Scrolls Online is called Greymoor and revolves around powerful Vampires setting up shop above and below the iconic location.

In fact a large part of the new Western Skyrim zone will expand into the vast depths of Blackreach - that truly mind-boggling ancient underground city found in The Elder Scrolls V: Skyrim.

And on that note the story takes places roughly 1000 years before the events of The Elder Scrolls V.

Supernatural harrowstorms plague Western Skyrim, and dark beasts, led by a powerful Vampire Lord, devour souls to further their mysterious plans. In The Elder Scrolls Online: Greymoor, ESO’s newest Chapter, you must defend the besieged Nords and uncover the evil behind this monstrous resurgence.

This Chapter brings all-new adventures to ESO players, including:

A new zone to explore: Western Skyrim

A gothic main story quest line that ties into the Dark Heart of Skyrim adventure

An intriguing new system: Antiquities

A massive new 12-player Trial: Kyne’s Aegis

New world events: Harrowstorms

New delves, public dungeons, and stand-alone quests

Updates and quality-of-life improvements including a rework of the Vampire Skill Line (free for all ESO players)

As per above the new Antiquities system will allow players to become archeologists of sorts where you can then uncover a bunch of artifacts scattered across Tamriel.

The Elder Scrolls Online: Greymoor is coming to PC/Mac on May 18 and Xbox One and PlayStation 4 on June 2.