It could be Lucas Arts. That hint might refer to the Wilhelm Scream used extensively in Star Wars. We are getting the Star Wars games! Okay, maybe a stretch but I try!

If GOG could get LucasArts, that could mean Outlaws has a chance!

One of the newer Tomb Raider games. We already have SquareEnix here and they are basically giving TR2013 away on Steam now days.

Lara screams a lot in her games.
https://www.youtube.com/watch?v=xvl4hPZuqpE

If you enable combat animations in Panzer General 1, the infantry also cries heavily if its strength falls to zero.

I hope for Freddi Fish - at last.

I must be LULA: The Sexy Empire :-P

F.E.A.R.

or

Rage of Mages

or

Rage

I think it is one of those Rescue 911 games, Judas is clearly in dire need of aid.

Let me also post this here.

Which is the best thing in the whole world ;) -> caffeine

EDIT: Oh, it's explained in comments below... I've never made a facebook account so please excuse me ;)

Oh shit, it's Jack Keane 3, isn't it?

Spring Insomnia Sale! :D

Serious Sam 2? That would make me very happy.

These hints are actually a lot harder than when we get a video. GDoc must return!

I vote Serious Sam 2, those screaming dudes are how I still picture what people driving with their high beams on during the day are saying while they drive.

Dreadout would have been a good candidate, as it is planned for release on May 15... but in back in April, the devs made it very clear that they focussed on Steam. A pity.