Luna…Yup…I was expecting the same thing also. 
I just fired an email to Humble Bundle…waiting for an answer
I’ve asked on GOG forums and sent the same question to GOG support, I’ll keep you updated here, other people will have the same troubles.
Medea thanks for your reply, maybe Humble Bundle is late, I’ll check it again later.
Edit: after a few mails with Humble Bundle, I received my Expansion key and activated it successfully on GOG. Heart of the problem: I bought the game with a mail address via Crate Entertainment different from the mail address I use on Humble Bundle, so they couldn’t find me in their database.
I just refreshed my page and there it was… good grief!:eek:
Luna: check it again…it might show up anytime.
It is a separate key, not automatically updated on GOG/Steam.
If you are missing your key, yes, please contact Humble support.
I just refreshed my page and it was there for me. Keep trtying. Good luck!
Any info on what today’s patch (1.0.2.1) changed?
I’m having problems with the game randomly freezing when I’m moving stuff in my inventory sometimes, I hope this patch fixed it.
There is also another (multiplayer only) bug: when I’m hosting the game, it freezes when I try to use the riftgate - if someone else hosts the game I don’t have this bug (!?) hope it got fixed too.
EDIT: I guess not, jst got a random freeze (outside the inventory this time… when fighting) 