Call of Cthulhu: Dark Corners of the Earth. Very atmospheric, very creepy and that bit were you have to escape from the hotel is just sheer terror incarnate. It's very unforgiving too; you don't even get a gun until about half why through.
HL2's Ravenholm deserves an honourable mention, as dose System Shock 2 and certain parts of the Left 4 Dead games.
HL2's Ravenholm deserves an honourable mention, as dose System Shock 2 and certain parts of the Left 4 Dead games.