Some people just noticed that their GOG game count decreased by 1.
Do not worry, GOG just moved Penumbra - Requiem to Penumbra - Black Plague.
Nothing changes.
Owners do not have to redownload installers.

https://www.gog.com/forum/general/the_what_did_just_break_thread_20/post1588

Thanks for the hint!
After reading toxicTom's Post, I checked my Lib and realized, that the counter really was decreased and Penumbra got only 2 results.

Not even a single word from GOG in this matter. At least they could do post a small topic in the particular game forum....

Thanks, was wondering what was up with that.

Thank you! I was wondering what happened!

just wondering, is the game under a DLC heading or a Goodies heading? the reason i ask is because i remember reading that gog does not support goodies, yet falcon 4 of the falcon collection is a goodie item, not a game. i.e. falcon 4 of the falcon collection is not "supported" by gog

Penumbra - Requiem become a DLC.
GOG still support it.

Thank you, I also noticed that my game count had changed.

I agree, Gog should inform members.

I have already seen my game count increase (when addons were parted from the games) then decrease. If I remember well, some players also had titles that disappeared from their library. It is not pleasant not to understand what is going on, if you have lost games or anything.