Here's another one!

Looks like Menzoberranzan?

What, they actually made a game of Druss's homeland???

Menzoberranzan would be another nice GOG game.

You're absolutely correct!

Alrighty. Here is mine then (bit small, but it should be enough)

Hmm looks familiar.. but all I'm getting is Inca and I don't think that's it.

Yup - that's not it.

It looks so stunning, I would say: Half Life 2? :)

No clue at all, does not even look familiar to me :(

That's not Half Life 2 either :-)

Let's give our American colleagues some time - they haven't had their morning coffee yet :-D

I will post some more hints (an additional screenshot, perhaps?) in a few hours.

It's an adventure game, à la Myst, isn't it ?

OK, here's a crappy hint for you. This game is not available on GoG, but it is on the "wanted" list.

Oh, it's windows 3.11.

Ah, yes, it's the rejected 'loading' screen...

Well - here's another stylish screenshot from the game.