Physics based "custom story"?

[Droopy]

That sounds like a fairly ambitious endeavor.
I would imagine a lot of us are still learning, and a project like that most likely would take A LOT of skill.

That said, I'm sure you're not the only person who would like to see something like this, but asking for it to be done instead of giving it the old college try might not be the best method.

I will admit I have toyed with the idea of creating a custom story in the vein of Penumbra: Requiem, but that will likely not be a reality until at least a year from now, if at all.