For any game I have finished or given up on because i am really stuck, there are at least four games I just stopped playing or outright NEVER STARTED!
Sometimes I just stopped playing because there was a newer game, and sometimes because i had a phase without time for games and then didn’t go back to the game (or sometimes couldn’t at the level of skill i had left at and didn’t want to restart).

Anyway, here’s the summary:
New: 3
Actively playing: 6
Finished or nearly finished: 17
Not played enough: 55
Gave up on: 100+

Now for the detailed list:

Actively Playing:

World of Warcraft
Depths Of Peril
Peggle
TF2
Guild Wars & expansions
Dungeon Siege 2

Action: Second Sight (GC); Chrome; Aquanox;  Lego Star Wars; Oni; Lord of the Rings: The Return of the King (GC); Descent 3 (made me seasick); Smugglers Run
Adventure/Action-Adventure: Beyond Good and Evil; Prince of Persia (GC);
FPS: System Shock 2; Prey; Bioshock; Half Life 2; Splinter Cell, No One Lives Forever 2; Max Payne;
RPG: Neverwinter Nights 1&2; Lionheart; Spellforce 1&2; Sacred; Titan Quest; Star Wars Knights of the Old Republic; Arcanum; Evil Islands (via stardock); Divine Divinity; Gothic; Fallout 1 and 2; Baldurs Gate 2 (want to finish it);
Strategy: Tribal Trouble(via stardock);  Disciples 2 (via stardock); Kohan 1&2; HOMM5; Overlord; Galactic Civilisations 2 (via stardock); Warhammer Dawn of War; Soldiers; Perimeter;  Battle Realms, Combat Mission 2, Warrior Kings, Warlords Battlecry 1&2 ;Ground Control; Sacrifice; Freedom Force; Myth 2;
Tactical: SWAT4; Hidden and Dangerous 2;
Other: SSX3 (GC, NEW); Tread Marks; Yager; Gumboy (via stardock); Space Rangers 2 (stardock); Trackmania; Lost Vikings (GBA);

Action: Magic Carpet 2
Adventure/Action-Adventure: Gauntlet (GC); Baldurs Gate (GC)
FPS: Star Trek Voyager Elite Force; Half Life and Opposing Force; Delta Force Land Warrior;
RPG: Planescape Torment;
MMOG: Guild Wars; World of Warcraft
Strategy: Dungeon Keeper 2; Majesty
Tactical: Hostile Waters; SWAT3
Other: Descent & Descent 2; Feeding Frenzy

Action: Star Wars Bounty Hunter (GC); Star Wars Clone Wars (GC);  Lord of the Rings the Two Towers (GBA); Super Smash Brothers (GC);
FPS: Hitman; Codename Eagle; Jedi Knight 2; TimeSplitters 2 (GC); No One Lives Forever; Thief 2; Metroid Prime; Splinter Cell Pandora (GC)
Action-Tactical: Delta Force Task Force Dagger; Ghost Recon; Operation Flashpoint; Stellar Frontier (stardock); Cold Blood (free game); Cold Zero (free game); Soldiers Of Anarchy (free game); Rogue Spear Urban Ops (free game); Rogue Spear Black Thorn (free game);
Action-Adventure: Eternal Darkness (GC); Project Eden; Zelda The Wind Waker (GC); Resident Evil (GC); Largo Winch; Robert D. Anderson & The Legacy Of Cthulhu; Syberia; Urban Chaos;
Strategy: Rival Realms (wont install); Starcraft (too hard); Commandos 2 (too hard); Combat Mission; Myth 1(too hard); Z Steel Soldiers (too hard); Robin Hood (via stardock); Celtic Kings (via stardock); WW2 Frontline Command (via stardock); ORB (via stardock); Silent Storm (free game); Battle Isle IV Incubation (free game); Anno 1602 (free game); Nordland (free game); American Conquest (free game); Medieval Total War; War Commander; Earth 2150; HOMM 2 (on old laptop)
RPG: Vampire; Wizards and Warriors (combat is odd); Oblivion (didnt catch my interest) ; Etherlords (free game);
Arcade: Super Monkey Ball 2 (GC); Super Monkey Ball (GC) , Donkey Conga
Others: I War 2 edge of chaos; Star Wars Rogue Squadron (GC);  European Air War; GTA3+; Project Nomads; Flying Heroes; Apache Havoc (free game); Bandits (free game); Hell Copter (free game);The Corporate Machine;

Older yet: MindRover+; Frogger 2; The Incredible Machine; Sheep, Dog and Wolf; QBert ; Pac Man World 2; 3D Frogger; Magic Carpet*+ + Hidden Worlds & Magic Carpet 2+*; Descent 1*+, 2+(+Destination Quartzon); Unreal & Unreal Tournament; Duke Nukem 3D; Terminator Skynet; Conflict Freespace; Outpost; Forsaken; Re-Loaded, Dark Forces+* & Jedi Knight; Oddworld; Discworld (1st one); XWing vs Tie Fighter; Dungeon Keeper 1 and 2+*; Sim City 2000; System Shock+; Thief Gold; ReLoaded; Forsaken; Dark Omen; heart of darkness; v-Rally; Gangsters; TR 2; Deathtrap Dungeon; Flight Unlimited 2; XWing+; Tie Fighter; Cannon Fodder 1 and 2+; I war; Terminal Velocity*; Rise of the Triads; Beneath a Steel Sky; Journeyman Project; Sam and Max+; Monkey Island+; Day of the Tentacle+; Bioforge, Worms2; Rebel Assault; Super Karts; plus a cool robot combat game whose name is on the tip on my tongue; one of the Lemmings games; Heretic; Zoop; Centipede (crap!); more… (to be continued);

You can also find a different view of my list at ign http://club.ign.com/b/list/custom?lid=100018&owner=iphigenie&mode=vown and gamespot http://uk.gamespot.com/users/iphigenie/games_table?mode=own