"An actual horror game?" So you mean a survival horror game?
(I just object to "based on survival and you can't really fight back" as the only "real" meaning of horror game.)
For whatever reason, there don't seem to be many text-based games like that. Or at least, many good text based games like that. I think it's a fairly visual genre, for one thing. For another, the time limit aspect is generally part of the suspense.