The Shelter is located in a remote location in Greenland.
Necrologue takes place in 2001 right after the events of Penumbra: Requiem, in an underground facility called: The Shelter. Will he finally be able to escape the nightmare, and see daylight again? Join Philip in the last part of his journey as he tries to find the answers to everything he witnessed in the Archaic Shelter while trying to stay alive from the many horrors that await him deep below the ice. Almost every in-game object can be interacted with, such as doors, drawers, boxes, bricks, etc. The player has to use his wits and has to hide or run away to survive. The game features puzzles and several monsters who cannot be defeated. The gameplay is identical to that of the Penumbra series.
On 31 October 2015, the add-on Penumbra: Twilight of the Archaic was released, described by the makers as a prequel/spin-off to Necrologue.
It continues the storyline after the events of Penumbra: Requiem, and like its predecessors, heavily focuses on exploration and survival.
Penumbra: Necrologue is a third-party total conversion modification released for Amnesia: The Dark Descent in 2014 by CounterCurrent Games.