Frictional Games' own game engine goes under the name HPL and uses industry standard technologies such as OpenGL, OpenAL and Newton Game Dynamics. The engine was released to the public as open-source in 2010 after the Humble Indie Bundle promotion finished.
Authors about the engine:
"The engine is built from an engine created when making a thesis job which resulted in the platform game Energetic. Before moving into the 3rd dimension I made some cleanup of the engine (which was quite rushed in some places) and started to add a base for 3D rendering. I would not say that the original 2D engine was modified to add 3D, but rather a 3D layer was added so all of the 2D stuff is still there. It is still possible to make a 2D tile game using our engine."
Source: Adventureclassicgaming.com
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Games
Penumbra: Overture
First Person ShooterPenumbra is a first person horror adventure focusing on story, immersion and puzzle solving. Violence and combat is hardly an option - the player has...
Penumbra: Requiem
AdventureIn the puzzle oriented expansion Penumbra: Requiem long lost friends will return and aid Philip on his quest, but can they really be trusted? In the bizarre...
Penumbra Collection
First Person ShooterPenumbra is a first person horror adventure focusing on story, immersion and puzzle solving. Violence and combat is hardly an option - the player has...
Penumbra: Black Plague
AdventureTrapped in a shadowy, underground complex, intrepid explorer Philip continues the search he began in Penumbra: Overture, to discover the truth behind...
Energetic
PlatformerThe Energetic project aims to enlighten and educate teenagers about the production and consumption of energy within our society. Rather than being an...
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Mod SDK & Community
Built a game for HPL1 and want to support mods? Try mod.io, a cross-platform mod SDK created by Mod DB which makes it easy to get a mod community up and running in-game. Currently seeking games to integrate and promote
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Link to HPL1 by selecting a button and using the embed code provided more...
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um...cool!
this engine is Better then amnesia's engine
It's a very nice engine, performed better with interaction than Oblivion does. Also I loved the Penumbra games, can't wait to see what their newest engine can do.
And yet I doubt anyone will use such a fantastic Engine that has a eerie sense of reality.
HPL1 is now open-source.
Very good! :)
Hooray!