i can second what TheGiftOfGabes said.
I like that it's a simple 1D20 system at heart, but because there are so many levers that affect the Tagerget Number, it's quite dynamic and allows for pretty complex play.
Especially the trick with the roll over from the Heat Vampire, simple but brilliant.
What is not quite clear to me is whether the game is a solo or a group game. As I was reading, I was thinking solo all the time, but then there was the Aid rule, which rather suggests that it is meant for more than one player?
A character sheet would also be great, especially because of the outstanding layout.
Otherwise, I personally need a little guideline for something like this, a general goal, an approximate path, a scenario or something. But if that's not the focus of the game then that's ok. I also saw that a small dungeon is planned.