Frictional Games is an independent game company registered in Helsingborg, Sweden.
|Penumbra (tech demo)||June 28, 2006|
|Penumbra: Overture||March 30, 2007|
|Penumbra: Black Plague||February 12, 2008|
|Penumbra: Requiem||August 27, 2008|
|Amnesia: The Dark Descent||September 8, 2010|
|Amnesia: Justine||April 12, 2011|
|Amnesia: A Machine for Pigs||September 10, 2013|
|SOMA||September 22, 2015|
H.P. Lovecraft Engine
The H.P Lovecraft (or HPL) engine is the 3D game engine created by Frictional Games. The engine was first created for 2D games but was later added with the functionality for 3D games.
The first engine version was used in the Penumbra (tech demo) and then later Penumbra games, with the second engine being used for Amnesia. Although Amnesia: A Machine for Pigs uses a modified version dubbed as the HPL 2.5 Engine. SOMA uses the HPL 3 Engine which was developed along with the game.
Although Frictional Games is registered in Sweden, the team is actually international.