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HPL1

Frictional Games |

Frictional Games' HPL1 engine used to create the Penumbra series.

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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 IndieDB which makes it easy to get a mod community up and running in-game. Currently seeking games to integrate and promote
Mod API