Dark Room is a full-screen, distraction-free, writing environment. Unlike standard word processors that focus on features, Dark Room is just about you and your text. Dark Room is devoid of any toolbars and all the usual features that is supposed to make typing easier. Instead, it has the most plain-jane look you will ever find on any word processor.
It’s black background and green text with a blinking cursor reminds me of the old unix type command line. Dark Room allows you to do hardly anything else than type. Dark Room is a clone of the Mac application called WriteRoom and looks exactly the same. Dark Room is a free Windows application but requires .NET framework 2 to run.
So, it's like vi? Color me impressed.