This.
Also some of the older Battlefield games like Bad Company 2 and before it.

I would absolutely love to see Area 51 get released on GOG! Played the crap out of that game on PS2. Here're my other two that would be very nice to see here:

- Darkwatch (FPS)
- Martian Gothic (RE-clone, fixed-camera survival)

There are certainly a ton of legal hurdles for any title to be brought here. That being said, Diablo 1 and Hellfire are both on GoG. If the legal ramifications of Activision/Blizzard can be overcome, then there's really no limit! Bring all the oldies on here! Start plucking out some of that abandonware.

A lot of licensed games. All those games from the mid-2000s "make games based on classic movies" fad; e.g., Scarface, The Godfather 1 and 2, The Warriors, From Russia With Love...some of these would be harder than others (The Warriors is console exclusive, for instance), but they all deserve to be preserved. I recently tried to play The Godfather because I'd heard a lot of good things about it, but it's a total pain in the ass to play today, especially since the best version is on the PS3 and is tied to their stupid motion control gimmick (can't even emulate it properly), so I gave up on it.

Aliens vs. Predator 2 - Do you like Monolith's old stuff like NOLF and Tron 2.0? Well, here's another one on the same engine by the same people from around the same time. Of course, we still need the NOLF games above all.

I do have games that I would want, but honestly part of the fun of coming here is seeing what unexpected games show up every few months.

Unreal, of course!

People have also mentioned Chrome a few posts above, and I agree. It's a much better FPS game than Chaser and Unreal 2 from the same year, plus it had Pawel Blaszczak as the composer and Jon St. John as the protagonist's voice.

Dragon Age 2 and Inquisition, preferably without needing to use the EA website to generate backgrounds for choices from previous games.

A lot of them:

1. Merit's Galactic Reunion - great scifi space RPG/Strategy: https://www.youtube.com/watch?v=M0t4HOu76Ws
2. Dune
3. Pacific Strike - Strike/Wing Commander from Origin, but this time it is WWII carrier warfare: https://www.youtube.com/watch?v=Gchs3opURZA
4. Wings of Glory - same as Pacific Strike but WWI: https://www.youtube.com/watch?v=dxOdlvPG0z8
5. Mass Effect games, even Andromeda.
6. Dragon Age II and Inquisition
7. Binary Domain
8. Old Ubisoft games which lost content/have technical problems because of servers shutdown:
- Assassin's Creed II, Brotherhood, Revelations, III (no, not a remake, but original), Liberation, IV Black flag, Freedom Cry, Rogue. All games up to Unity.
- Far Cry 3 and Blood Dragon.
- Ghost Recon Desert Siege DLC, Island Thunder DLC, Future Soldier, Advanced Warfighter 1/2.
- All Splinter Cell games including Blacklist.
9. Medal of Honor 2010 and Warfighter.
10. Ivan Lozhkin Price of Freedom - Russian quest heavily inspired by Space Quest 4 (but it will required translation to English): https://www.youtube.com/watch?v=8qB9obVlYa0

And this is just the top of my list.

Every single and last one of them, of course.

As far as (thematically) similar titles to Alpha Protocol are concerned:

Chameleon (Wishlist entry)

I would love to see Area 51 on GOG. I use to play this game so much on my PS2.

Pirates of the Caribbean (2003) - was originally to be Sea Dogs 2 (iirc). Akella, Disney, and Bethesda.

https://www.gog.com/wishlist/games/pirates_of_the_caribbean

This, KISS: Psycho Circus, Dark Earth, Heart of Darkness, Heavy Metal F.A.K.K. 2, Heretic II, Wolfenstein (2009), Pool of Radiance: Ruins of Myth Drannor, Nocturne, No One Lives Forever 1&2, Dungeon Master series, Oni, Black Dahlia, The Neverhood, basically almost everything from the list that's not marked "completed".

I own the legally game on DVD (though the copy I play is from Archive dot org, to bypass need for DVD), but I'd pay a decent amount for GTA: San Andreas, original release with original soundtrack.

Same with Tony Hawk Pro Skater 3, original release with original soundtrack (probably a lot more complicated with licensed skaters, brands, etc. though)

https://www.gog.com/wishlist/games#search=gta&order=votes_total

https://www.gog.com/wishlist/games#search=tony%20hawk&order=votes_total

The Movies

https://www.gog.com/wishlist/games/the_movies_lionhead_studios

Interstate 76 is already here but it is badly in need of a remastering job to make it play nice with modern systems.

The Mechwarrior and Heavy Gear games would be great to see finally.

The No One Lives Forever series, of course.