rgnrk: I'm guessing it's the Black Mirror Anthology; probably the three BM games. Which are on GoG, but then aren't (as the first two where removed due to Nordic, but they're back from time to time on sales. The third one never made it).

As for Viva Media stuff; most of their point&click adventures are essential. Although some are also Nordic's, as there seems to be some crossover. And I can't find them in their website anymore.

But I would definitely love to see here:
Deck 13's adventures (Haunted and the three Ankh games)
Mata Hari (a Cranberry Production game designed by creators of Fate of Atlantis Hal Barwood & Noah Falstein)
Lost Chronicles of Zerzura (last Cranberry Production game)
Memento Mori (would also love Memento Mori 2, as I heard good things about it)
Alter Ego
The Immortal Of Terra: A Perry Rhodan Adventure (a very unknown gem)

At some point they might have even owned A Vampyre Story and Ghost Pirates Of Vooju Island. But I don't know what adventure game rights they have anymore.

And I thought I read somewhere that Nordic bought House Of Tales game rights. And they are in and out, and we should also have those games in here, so maybe they could bring some new games during sales...

l8r!