Adventure games?

[Kedjane]

Actually I think it was revealed the whispering guy (Dr Roberts I think) was killed by Wilbur Frisk, the chief overseer of the Shelter. You find the notes about it in Black Plague, somewhere around the kennel I'd guess.

There are no games with the Penumbra physics system that I know of, but there are several threads about similar games you can check out. One that is frequently mentioned is Call of Cthulu: Dark Corners of the Earth.