As you can see, I have a gap on my shelf.
I'm not on manual sorting, and the total number of games add up, so I'm not sure what's up. What does it mean? What is this secret invisible game? The konami code didn't reveal anything... :D

liez !
the konami code solves all and makes you immortal !


you do have to do it on an actual controller
a nintendo one to be sure

As the others said, a quite known visual bug. Here the topic where many people reported it:
http://www.gog.com/forum/general/empty_space_on_the_shelf

Yes, it is VERY ANNOYING.
I created a similar topic before: http://www.gog.com/forum/general/the_witcher_adventure_game_online_beta_removal_and_library
Also was going to make an entry in the Community Wishlist, but GOG hated this idea (NO BUGS ALLOWED HERE).

So pissed...

EDIT: If you order your library "By Title", blank space (gap) will be removed.
It seems GOG's programmers have no idea how to fix their's sorting algorithm. :|

Try https://gog.com/account/refresh, maybe it helps, maybe it doesn't. If it doesn't, they're most likely already working on a fix.

No, it won't help. I tried this already before.

This thread name would make for an ideal adult movie title. :P