An independent project, Nordinbad was a Dwarven fortress hidden deep within the Grey Mountains.
From the LOTR wiki:
Nordinbad is one of the locations in the game The Lord of the Rings: War in the North . It is a Dwarven fortress hidden deep within the Grey Mountains, serving as a place of isolation and refuge for the Dwarves of Durin’s Folk. They lived around an underground lake known as Azan-zâram. Gorin of the Longbeards was the ruler of these secretive people.
The thread will be updated with progress and instructions as the project proceeds.