Someone needs to play this, it's pretty creepy and the only SH game I've not played. It's not as good as the other SH games (read as: SH2) but it has its own merits, supposedly. It's standalone but has references to SH2, but you don't need to have played any of the other games to enjoy or understand it.
Basically you're trapped in your apartment but you find a mysterious HOLE IN THE BATHROOM WALL OH GOD then you end up in crazy places with ghosts and weird shit going on.
This needs to be streamed because it would lead to some OH GOD HELP moments. It's on the PS2 but there's a PC port that should work fine. Not sure if it works on Vista/7 but I've tested it on XP and it's fine.http://www.youtube.com/watch?v=GW_is7yL6_U&feature=fvw