Good find, we'll take a look.
This is due to a problem in the back-end game information so the fix is coming but not tied to any client release, it'll just fix itself as we fix the back-end info.
I take that back; after review it looks like the fix is in the client. The next beta will have a fix for this.
This should be working now, do you still see the problem?
Working for me now in the beta client, so closing.
Nothing extracted yet.
For the game Gratuitous Space Battles on launch it displays a CD key that you can copy it to clipboard, that all appears to work.
In‐game if you load the overlay, you are not presented with a cd key dialog like it should, and the ‘CD Key’ link that should be in the top right does not appear to open that dialog.
I verified with a friend in Windows that he sees this link, so for all I know its a linux client or linux game config problem.