When you think about 3D level design, odds are you think about building levels in 3D - width, height and depth - fairly common fare for those acquainted with game development. But that's not what I want to talk about. I put "3D character writing" in the heading because there is a good chance people have heard of this subject, and it helps us game developers get out of the mindset of three dimensions automatically meaning width, height and depth, which, for the purposes of this writing, they don't (although, to be honest, I'm not sure what they stand for, or even if there are exactly three).