I'd be fine with these:
Age of Empires Gold
Battlefield 2 Complete (with the 1.50 patch they've basically made it DRM free already, but for those who don't own the retail version I'm sure GOG would be a good place to get it from)
Commander Blood (two strange and awesome Cryo space adventure games)
Codename: Eagle (DICE's precursor to the Battlefield series)
Close Combat 2: A Bridge Too Far
Descent 2: Vertigo
Dune (Cryo's adventure/strategy game hybrid thing)
Dune II and/or Dune 2000
Emperor: Battle for Dune
Duke Nukem II
Dark Reign + Shadow Hand expansion
MechWarrior 2 + Mercenaries
MechWarrior 3 Gold
MechWarrior 4 + Mercenaries
Motor Head (DICE's futuristic racing game)
Populous: The Beginning
Prince of Persia
Prince of Persia 2
Syndicate + Expansion
Wing Commander: Kilrathi Saga (1-3)
Wing Commander IV
Wing Commander: Prophecy + DLC
Wing Commander: Privateer
Bull frog games are a must!
also cryo interactive have some competant games and would help bulk up the adventure catagory.
inparticular the slightly flawed Faust
(or seven gamesof the soul) is a favourate.
it has a great story if a little unclear at the start. great art fantastic voice acting and the best soundtrack any game has had ever. I mean better than rockbands greatest hits. the soundtrack is that good.
Oh yes, Cryo's Commander Blood with that incredibly strange 90's rave soundtrack included as a bonus. JUST WATCH THIS AND TELL ME IF YOU WOULDN'T LIKE TO HAVE IT