Congrats.

Now, i wonder how much of those Yes already pre-ordered the game.
I know i am one of them, but there must be a load of other people who are in the same situation.

-Snip-
Would you try going into Options, disabling the setting "edge panning / fullscreen cursor capture", and then testing to see if the controller works in fullscreen mode?

edit: if this actually what's going wrong, it's probably worth separating the "edge panning" and "fullscreen cursor ...

I would suggest: Borderless Full Screen.

Why? my story;
So, after having played a full day behind the pc. I was thinking 'it doesn't have lots of controls, might even use a controller'.
With SiS now on steam greenlight, so why not test that out.
Went downstairs grabbed my steam controller and ...

Hail from the past,

Decided to look if Outsider had another page for December. and found THIS..
So far been playing for a day or so. Arioch you haven't outdone yourself yet, but by far you live up to your reputation.
(you don't cut corners on what is good)