Penumbra: Overture Source Code Released

The source code is currently running on Windows, Mac OS X and Linux
Frictional Games today announced the release of the source code for Penumbra: Overture, together with the source code for the engine and tools used in its creation. Apart from Penumbra, the source codes for the indie games Aquaria, Gish and Lugaru (all available in the Humble Indie Bundle) are also released.