The German page claims that the game is an ESA protected title. This is definitely not true, as it has officially been made available as freeware:
http://www.adeptsoftware.com/got/. On the English page, the download is offered, so I think this is a bug.
Another thing: On the site I've linked above, you can find the manual and hintbook in far better quality than offered on the abandonia download page.