You can’t just find a link, you have to search for them. Once somebody claims a key, I will announce the user who claimed it and where the person found it. Remember that once a key link is used on Game Jolt, the person will have access to the version until I make it public (they will, however, still have access).

Here are the claimed keys so far:

KEY 11: Gabhart3, through the D-Day chat on Skype where the link was only up for ~20 seconds.
KEY 12: NaughtyMickey, through the comments on the Discovery Island page on the wiki.
KEY 13: ThatOneFredbear, through the icon on the Skype chat.
KEY 14: FunDevelops, through the Skype chat.