Most of my games are the type you can't 'finish'. CS:S, Civ V, and so on. And I barely ever finish games anyways. And any open RPG's (Elder Scrolls, Fallout -type) I never finish because the main quest is something I do as a kind of last resort. So,
Deus Ex: HR, Skyrim, SpaceChem (last planet, soo difficult), Fallout: NV, Metro 2033, Shift 2 Unleashed, DiRT 3, Witcher 2, Dragon Age 2...
Deus Ex: HR, Skyrim, SpaceChem (last planet, soo difficult), Fallout: NV, Metro 2033, Shift 2 Unleashed, DiRT 3, Witcher 2, Dragon Age 2...