It's a very open and vast landscape, where you pretty much run around alone for a large part.
I was afraid, that I had to look over my shoulder all the time, but nope - you'll see the baddies in good time.

It can be hard to find certain places though, which is why I invested in the original strategy guide with maps and everything

It is said, that you should be able to actually finish the game without killing anybody!
How, I really don't know, lol