I was planning it to be very forest-ish, with no real world set in mind (it could be Earth, but doesn't have to be).
I think the game will be slightly high tech. There will be machines (in fact, the first big enemy you encounter is a robot).
Tomorrow (or tonight, depending how late I decide to stay up!

) I'll write a page or two explaining the general overview of the game, which should answer a lot of these questions.
But, yes, a forest like place, with a few caverns and mountains. I am trying to make the game feel as if you are looking at the world from a Ghosts perspective, which, in my opinion, would be somewhat gloomy.
There are machines, but you don't really encounter that much. There won't be any cars, or spaceships, etc, but you, as I already stated, will meet a few robots, and such.
And, honestly, I really don't mind you 'babbling'. It's actually really helping me figure out more about the game. I thought I had a pretty good idea down, but apparently I don't.