Using sfx from game in music

[smoke11]

Hi all, I created a song which uses a lot of sounds from
Amnesia. I couldn't find out what sort of copyright applies to the sfx samples
and whether it is okay to use them. Perhaps I am missing some obvious spot where
that is explained, but in any case I'd appreciate some help.
What I would like to do
is release the song on the internet for free with an explanation about the usage
of copyrighted samples from Amnesia. Is it OK if I do that?