Mine, though I abandoned or just haven't gotten around to finish many others that would double the list:
Arcanum: Of Steamworks and Magick Obscura
Avadon
Baldur's Gate
Baldur's Gate: Tales of the Sword Coast
Baldur's Gate II
Baldur's Gate II: Throne of Bhaal
Baldur's Gate: Dark Alliance
Barkley, Shut Up and Jam: Gaiden
Battle for Wesnoth
Battletech: The Crescent Hawk's Inception
Beyond Divinity
Breath of Fire 2
Castle of the Winds
Chrono Cross
Deus Ex
Deus Ex: Human Revolution
Diablo
Diablo II
Divine Divinity
Dungeon Hack
Embric of Wulfhammer's Castle
Exile 1
Exile 2
Exile 3
Exit Fate
Fable: The Lost Chapters
Fallout
Fallout 2
Fallout 3
Fallout: New Vegas
Fantasy Empires
Final Fantasy 1
Final Fantasy 2
Final Fantasy 3
Final Fantasy 7
Final Fantasy 8
Final Fantasy 9
Final Fantasy X
Final Fantasy Tactics
Forgotten Realms: Demonstone
Frayed Knights
Freedom Force 1
Freedom Force 2
FRUA: Game 00, Introduction (Level 1)
FRUA: Game 06, B8, Journey to the Rock (Levels 1-3)
FRUA: Game 07, B10, Assault on Raven's Ruin (Levels 1-3)
Geneforge 1
Geneforge 2
Geneforge 5
Gothic
Gothic 2
Gothic 2 Night of the Raven
Gothic 3
Icewind Dale
Icewind Dale: Heart of Winter
Icewind Dale 2
Jade Empire
Kingdom Hearts 1
Kingdom Hearts 2
Knights of Xentar
Legend of Queen Opala 1
Lightning Warrior Raidy 1
Lightning Warrior Raidy 2
Marvel: Ultimate Alliance 2
Mass Effect
Might and Magic 1
Might and Magic 2
Might and Magic 3
Neverwinter Nights (and various fan mods)
Neverwinter Nights: Shadows of Undrentide
Neverwinter Nights: Hordes of the Underdark
Neverwinter Nights 2 (and various fan mods)
Ogre Battle: The March of the Black Queen
Parasite Eve
Phantasie 1
Phantasie 2
Phantasie 3
Phantasy Star 2
Planescape Torment
Pool of Radiance (Gold Box)
Quest for Glory 1
Quest for Glory 2
Quest for Glory 3
Quest for Glory 4
Quest for Glory 5
Rance 1
Rance 2
Rance 7
Romance of the Three Kingdoms IX
Shadowhearts: From the New World
Shadowrun (Sega)
Shining Force 1
Shining Force 2
Slave Maker 3
Space Rangers 2
Starflight 2
Star Wars Knights of the Old Republic
Star Wars Knights of the Old Republic 2
Skillband
Temple of Apshai
Temple of Elemental Evil
The Elder Scrolls III: Morrowind
The Elder Scrolls III: Bloodmoon
The Elder Scrolls III: Bloodmoon
The Elder Scrolls IV: Oblivion
The Elder Scrolls IV: Knights of the Nine
The Elder Scrolls IV: Shivering Isles
The Witcher
Ultima 1
Ultima 2
Ultima 3
Ultima 4
Ultima 5
Ultima 7
Ultima 7: Serpent Isle
Ultima 8
Ultizurk 1
Valkyria Chronicles
Wizardry 8
X-Com: UFO Defense (original)
I was tempted to add Grand Theft Auto: San Andreas and FTL to the mix.
I'm sure I've forgotten some... but 120 is my count. I read books and drink, too, so I do have other hobbies. Promise.