Fable, Sims 3, and Civ 4 are games I had and couldn't get into. The first for controls I didn't like and the latter two for being shit.
Guild Wars is on there, but not touched because I forgot information on my account that prevents me from logging in (character name or password but I can't exactly tell which one I'm getting wrong and the support for the game is bullshit and won't help).
Also have (and occasionally play) Prototype, Borderlands, L4D2, L4D, Portal, Painkiller, Psychonauts, Assassin's Creed, Dragon Age, Torchlight Demo, AvP Demo, Arkham Asylum Demo, War Craft 3 Battle Chest, and various board games for computer because my friends and I are too lazy to keep track of all the pieces otherwise. I also, recently, downloaded Silent hill 2 because I'm not wasting money on a PS2 (or any Playstation) to play Silent Hill. Might be a good game, but... just ... no.