"Example mod showing how to properly implement this: Dropbox, Github"
This looks like it should have a link to Github, but I am not able to find the example mod on the Unknown Worlds github.
I didn't get my code in email either; I even triple checked my spam folder.
It looks like humblebundle may have problems with certain types of email address like xxx+yyy@gmail.com.
Anyway, to get your key resent directly, you can c…