Rhineland: Total Annihilation
That's kind of an unfair guess, as it would include 'two games'. I don't know about spindown, but if I were him, I'd want you to decide either for Commander pack or Kingdoms + Expansion.
The list so far (again without warranties ;)):
Advent Rising - Catshade
Age of Wonders - grounddown77
Alien Shooter 2: Reloaded - SladeStrife
Alone in the Dark New Nightmare - Cassidy
Amerzone: The Explorer Legacy - psicat
Another World: 15th Anniversary edition - Taleroth
Arcanum: Of Steamworks and Magick Obscura - Sh4d3s
Arx Fatalis - keeveek
Baldur's Gate: The Original Saga - Shadowdragoon
Battle Isle Platinum - Lexor
Betrayal at Krondor Pack - SpirlaStairs
Blood (One unit whole blood) - hucklebarry
Bloodrayne - CowboyBebop
Beyond Divinity - Phosphenes
Beyond Good and Evil - Zchinque
Call to Power 2 - tikeno
Capitalism 2 - wolfsnake
Combat Mission: Beyond Overlord - Mamutte
Commandos 2+3 - Snizzle012
Constructor - cheesetruncheon
Dark Reign + Expansion - wlmiv
Desperados: Wanted Dead or Alive - csmith
Feeble Files, The - Austrobogulator
Flatout - HomerSimpson
Forgotten Realms: Demon Stone - Garugo
Gabriel Knight: Sins of the Fathers - GoJays2025
Gorky 17 - tburger
Gothic - SLP2000
Heagemonia Gold Edition - Bodkin
Heroes of Might and Magic 2: Gold edition - icepowdah
Icewind Dale Complete - ChaunceyK
Jack Orlando: A cinematic adventure (DC) - FearItself
Jagged Alliance - oasis789
Kingpin: Life of crime - habit79
Last Express, The - nimllar
Longest Journey, The - swizzle66
Lords of Magic: Special edition - Vitalfever
Master of Orion 1+2 - Xibalba
Messiah - Kabuto
Might and Magic 7: For Blood and Honor - tarangwydion
Might and magic 8: Day of the destroyer - kodeen
Neverwinter Nights: Diamond edition - Fantasysci5
Outcast - Detlik
Patrician 1+2 - Fujek
Police Quest 1+2+3+4 - CymTyr
Psychonauts - Delixe
Red Baron Pack - Rodzaju
Return to Krondor - Vitek
Runaway: A road adventure - Thiev
Shadowgrounds - adambiser
Sniper Elite: Berlin 1945 - taczillabr
Soldiers: Heroes of World War II - Ric1987
Space Rangers - Dragobr
Star Control 1+2 - Zolgar
Star Wolves - gyokzoli
Still Life - cosminm
Stronghold - MobiusArcher
Syberia 2 - cnquist
Temple Of Elemental Evil, The - sheva78
Total Annihilation: ? - Rhineland
Tropico Reloaded - Hesusio
Two Worlds - park_84
Unreal Tournament GOTY - Titanium
Vampire The Masquerade - Redemption - lugum
XIII - deshadow52
Zork Anthology, The - Gilou