How are fans going to be able to discuss scary science fiction games such as Dead Space or Resident evil games or the Mental hospital without one?

You can discuss them to your heart's content in the
General Discussions forum. I promise you if you can attract 20 people to discuss those topics, I will lobby for the creation of a new forum for that specific purpose.

My friend Randy Ray runs the
Horror Forum Website and he tells me it's hard to build a large community there.
But if enough people asked for such a forum we would certainly create it.