The original Thief almost gave me a heart attack. I wasn't expecting it at all, but there is one part where you walk over some corpses, and the jump up and start eating you. I had to turn the machine off and left the room and watched TV... I never watch TV

I've been taking a lot of breaks playing Doom 3... The sound effects just really creep me out, and that is with some cheeseball headphones that came with the UT2004 Special Edition. I ordered some new speakers after hearing how much the game benefits from good speakers. Now I'm wondering if that was a good move...

Overall, the atmosphere in Doom 3 is phenomenal. From jumping just because a corpse falls over a lip, to the insane amount of anticipation because lights start clicking off one at a time. They did an awesome job with this game.