The covers would look a little like this.
The artist, DrFaustusAU, was featured on Kotaku before. This time, he's back with two covers: one for BioShock, and one for Silent Hill. Check em out, they come with accompanying rhymes (which are from the original DeviantArt pages):
She is just a small girl,
but has no fear of capture.
She has a Big Daddy
down with her in Rapture.
What is this place?
I cannot tell.
Is it just fog,
or is it hell?
Some Time to Kill in Silent Hill! [DrFaustusAU]
Under the Sea with Mister B! [DrFaustusAU]