Vietcong 1 & 2
UFO: Extraterrestrials 1 & 2

Just a few I can currently remember the name of:
Castle Master

Combat Air Patrol

Crimson Skies

Das Hexagon Kartell

Extreme Assault

F-15 Strike Eagle II

F-15 Strike Eagle III

Flight of the Intruder

Gunship

Hard Nova

Rise of Nations: Rise of Legends

Starglider II

Su-27 Flanker

Whale's Voyage

Mech Commander series 1/2/Gold would be great. already on abandonware but the need to mount the iso is a pain every time i come back and want to play.

In general:
- Anything with online MP, MMO, or always-online...to be reworked to work fully offline with bot support.
- Any game that has any terrible DRM, client-app junk, Denuvo can come here with a working DRM-FREE version on GOG.
- Any games laced w/ online progression-only support...turned into also having offline progression support (i.e. Hitman 2016 and Back 4 Blood, I'm looking at you).

Specifically:
- An OFFLINE version of The Secret World with ALL of its content, DLC's, updates, etc.
- An OFFLINE version of Guild Wars 1 and 2 (with all expansions).
- The entire No One Lives Forever series and also the Contract JACK spin-off.
- Hitman 2016 (and future Hitman games) with offline support for offline progression support.
- The entire Mechwarrior franchise.
- Fable 1: TLC and Anniversary Editions
- Fable 2 finally getting a PC port
- Fable 3 w/out any G4WL support.
- Entire Gears of War franchise (from Gears 1 up to Gears 5) without any G4WL, Xbox for PC App, and/or none of that client-app garbage....yes, even the missing ones here on PC (Gears 2, 3, Judgment).
- Halo MMC without any Xbox for PC app crap.
- Halo 5
- Test Drive Unlimited 1 and 2.
- GTA series (even the old GTA's in full such as GTA1 and 2 with all expansions); L.A. Noire; and Max Payne 1-3.
- GTA: Liberty City Stories, GTA: Chinatown Wars, and GTA: Vice City Stories.
- Darkspore offline version
- Godfather 2 without Securom junk and no Origin junk.
- Dragon Age 2 and DA: Inquisition without Origin junk.
- Old versions of ME1, ME2, and ME3 (all Complete with all DLC's and no Origin junk)
- ME: Legendary Edition (without any Origin junk).
- The entire Final Fantasy series
- Chrono Trigger and finally a Chrono Cross PC port.

-Wizard's Crown
-Sword of Aragon
-Questron II

No, wait!! They are already here :D, then I'll choose Phantasie series and Star Command, from the same time and company (SSI)

- Puzzle Quest series

The Ancient Art of War in the Skies
F-16 Combat Pilot (1989 Digital Integration, EA - Not Falcon collection, which is already on GOG)
Secret Weapons Of The Luftwaffe

American McGee's Alice: Madness Returns

Wipeout 2097

Captive (the prequel to Liberation: Captive 2, only released on the Amiga and CD32)

Frontier: Elite II & Elite

Dyna Blaster (Bomberman)

Bomberman 93 (Loved it on the PC Engine)

I'd tell you, but the Wishlist would have to be redesigned. I'd also need the ability to unwish/unvote things due to changing tastes.

But more seriously: Gunmetal.

Voxar's Tumblebugs.

Cyberstorm 2.

Front Page Sports: Golf

Worldwide Microtronics's Dazzle/Razzle Dazzle.

Zoo Tycoon Complete Collection

Acendancy.

The whole dang Super Solvers series.

Urban Assault, a hybrid FPS/RTS...

Stars! (An excellent PBEM 4X.)

The entire Moraffware collection.

A Soleau Software superpack, in memory of 30 years of operations.

Realmz, now that Yahoo groups is dead, meaning players can no longer register...

The entire Nifflas collection.

I could keep going.

These are the definite classics and not mentioned before. I can't remember how many hours I've sunk myself in, playing those games on an Intel's 486 processor PC with a CGA monitor.

1. The Blues Brothers
2. Reunion
3. Bermuda Syndrome
4. Circuit's Edge
5. Harley-Davidson: The Road to Sturgis

All of these.

Space Invaders.

Star Trek: The Next Generation - A Final Unity

That game had the original TNG cast as voice actors and was like playing one of the TV episodes. If you liked TNG and point & click adventures this was a really great game to play.