Typing Game Idea

I got a nice mechanical gaming keyboard recently after having gone my entire life using generic membrane-switch keyboards of varying levels of quality. With this in front of me, I looked around for some typing games to test it out with and came across a game called Epistory, which is fairly enjoyable. I then began considering working on a typing game of my own that focused more on the actual typing instead of wandering through a story-derived world with some heavy typing bits here and there.

Here is just a test image I cooked up that would serve as the basis of such a game if I ever decided to pick the shovel up and start digging.