In the Gates of Oblivion adventure, the player can explore a new storyline told throughout all of ESO’s 2021 content releases. In this year-long saga, the player will unravel the ambitions and schemes of the Daedric Prince Mehrunes Dagon 800 years before the events of TES IV: Oblivion.
Oblivion Portals are a new type of World Event introduced with ESO’s newest chapter “Blackwood”. World Events are big events that usually require a group of people to organize and get together, in order to kill enemies and destroy objectives.
Technically, they are Public Dungeons, so that everyone can enter and the difficulty isn’t too high. This way the player can go through a portal and be in a different place and return to where they entered the realm.