The labs in STALKER were horrifying, hell, some could even argue the whole game was. You spend the first five hours or so travelling from place to place in the same area, then you're told to travel to a laboratory, I expected the lab to be filled with scientists, maybe an abandoned lab taken over by bandits? No. None of these things, instead, you're greeted with a chilling silence as you enter, only the buzz of your gouger counter to keep you company, you venture on into the darkness. I was a little creeped out, but it was nothing too bad, then I saw some barrels moving in the corner of the room, I thought they were just bugged and moved on, but low and behold, a pile of crated toppled over infront of me and OH DEAR GOD THEY'RE FLOATING. After running aimlessly through the lab trying to get away from said moving crates, I hear a scuttling noise and it appears I'm getting attacked, as you look to the floor you see a mutilated corpse with a gass mask gnawing at your ankles. And as a massive fuck you, it repeats the "Piss your pants" horror levels all the way through the game, these take the cake for me.