A question for the developpers

[Googolplex]

I watched the movie "The Descent" and it have to following in common with Penumbra:

1. A dark mining complex
2. Flashlights (ok, that's normal, but...)
3. Green glowsticks! and...
4. Red flares!
5. Monsters look like the infected.
6. The only weapon in the film is a hammer.

7. The game after Penumbra even called similar to "The Descent"