This year (with the Steam sales) has been my worst. I've started so many games and played them thoroughly then got completely and utterly bored, and then I get so disinterested, I have no intention of going back, which results in trying another game and repeating the same ordeal again.
Since 2011-2012 the games I've not completed are:
Crysis 1 and 2 (I had Crysis 1 for years but only started playing it properly in 2011. With both games they started off great and then veered off in silly directions which lost my interest.)
Far Cry2 (Got fed up of re-spawning bad guys and generally was not as fun as Far Cry1)
Fallout 3 (This game was actually quite good, but the sheer vastness of the open world and missions was overwhelming - it became a real chore to get things done!)
Ghostbusters: The Video Game (Actually pretty darn good, and seeing the movie when it was re-released at the cinema got my interest pumping, but it didn't last for very long.)
Mafia 2 (OK... but I am not keen on gang orientated themes from 40s and 50s
which similarly is why I can't get into the Godfather films)
Metro 2033 (Started to play it but just didn't continue playing it)
STALKER (Got interested, then like Fallout 3 got overwhelmed with the sheer vastness of the world and ended up feeling like a chore getting from a to b)
Mass Effect 1 (Really, really promising game, except once it reached the point where you've just become a Spectre and go to other worlds to investigate things it just felt too linear and dull - despite all the different paths)
Skyrim (Completed around 15% of the game, had some important things happen in my life that took over my time, went back to the game this time with a new AMD 7950, game became buggy and haven't bothered since)
Does anyone have a recommendation of which game should be my priority to finally complete? I feel compelled to try and complete at least one of the games I've started.