Yes, I know that this sort of thread has been posted 59128432946293542985629 Million times before, okay maybe not *That* Many, but you get the Idea.
Anyway, I was thinking not like a New Tier, or new Monster Type or stuff like that, but Levels With Triggers, not Buttons, but like "Player steps here = Send Zombies" Stuff like that.
Specifically, I was thinking of a Dead Spacey type thing. It doesn't have to scare the Crap out of people, because I know that there are People who get scared by that kind of Stuff.
Think how cool it would be to go down into the Clockworks, and see that the only source of light is a Few Lanterns placed here and there and a Flashlight you can find close by, and like there are a Few Creepy sounds just to add Suspense. There are no enemies or anything for a Bit, just the Ambient noise and your Party, until you get to a Certain Point, when you Get ambushed by Zombified Gremlins or Zombies or something like that. and it gets Creepier and Creepier, not like "Holy Cow I need to change my Pants that was so scary!!!" but like "Creepy" and you continue on.
The Reason Why I sort of want to see this is because I was Reading the Description for the Polaris, and I thought "This would be cool in a Dark room!" and then I watched my Brother play Dead Space 2 and just Laughed. And then I thought about how cool it would be if you have a Level like the one I Typed above.
Anyway, just a Random thought which I think has Potential, Constructive Criticism and any other Ideas are Welcome.