The Descent (a template) ?

[Googolplex]

As I saw the movie The Descent, I really remember to Penumbra.

1. You are in a cave with flashlights. But OK, that's still normal.
2. But there is a green glowstick like in Penumbra.
3. There are the red burning flares like in Penumbra.
4. The monsters looks like the infected in Penumbra.
5. This hammer seems like the weapon in Penumbra.
6. The name of this movie is similar to Amnesia.

Was Frictional Games watching this movie before creating games?