The reason that I ask this question is that although I've played many good games this year, some can leave you feeling hollow....like a movie that you go and see, and you've forgotten about 10 minutes later.
I just finished The Lord Of The Rings-The Third Age, and although it may not qualify as a Game Of The Year contender.....it was DAMNED satisfying to play. I probably got the most money's worth out of this title. It was a joy to fire up and I touched no other game from the time that I started it until the end boss was laid to rest.
Tell us your most satisfying game discovery this year...it doesn't have to be FROM this year. Some of us may discover some new favorites this way!!!