Here we go...
Amnesia - Couldn't wait to be scared ****less but ultimately it became dull and tedious very quickly like the previous games
Blur - I forget how boring Mariokart is without the charm and friends to play with
Red Alert 3 - Fell in love with the demo, find myself quitting the game for weeks between missions
Garry's Mod - fun fr a few hours, haven't touched it since
Dirt 2 - Loved but never finished the 1st, same with this, great game but I won;t be buying number 3 til it's a fiver
FEAR 2 - Liked this a lot more than I thought I would as I never managed to finished the 1st because of the pure monotony. Haven't touched this for a while either though and the load times are painful
Pure - Loved it for a few hours, soon got bored, the load times were stupid and the alt-tabbing to get past it got annoying
Fallout: New Vegas - One of the few games I've actually managed to finish this year, loved it from beginning to end, definitely lacked a lot compared to the 1st though
GTA4 - Shocking, biggest disappointment ever. I've probably racked up more hours on SA compared to any other game but this removed almost everything that was good about it, it runs like **** as well
Half Life Episode 1 & 2 - Awesome but slightly overrated. Managed to finish them both without either getting tedious though which says a lot
Just Cause 2 - Great while it lasted, racked up just over 30 hours, amazing graphics but eventually repetitive gameplay.
Kane & Lynch 2 - not even worth the £4 I paid
Mafia 2 - Easily one of the highlights this year, this is how games should be done. Great story, varied missions, solid gameplay, immersive environments
Metro 2033 - Favourite game I bought in the past year, it has its faults but the strengths of the story, gameplay and presentation more than make up for it.
Operation Flashpoint: DR - controls always felt clunky, enjoyed it for a bit then got bored
Arma 2 - wish I never bought it, worse than a beta, horrible voice acting and mechanics, don't know how anyone can enjoy it
Red Faction Guerilla - lasted 10 hours before getting bored, fun but very repetitive.
Portal - excellent but also overrated. Stop going on about the ****ing companion cube, it lasted for 1 puzzle which was **** easy
Resi5 - Excellent game, props for the a1 port, got stuck fighting some worm thing with a flamethrower and gave up. Should really look up a walkthrough
Saint's Row 2 - Everything GTA4 should have been. Absolutely brilliant game, sucked me in for weeks. Horrible port though
Supreme Commander 2 - One of my favourite games, classic RTS
Timeshift - Good but not great, it's better than I expected, still haven't managed to finish it though.
DOW2 - Massive let down. Horrible, irritating gameplay, very little real strategy involved, just a hell of a lot of clicking and difficult upgrade decisions.
Wings of Prey - Biggest surprise this year. I'd never heard of it but caught it in the holiday sale. I play it one mission a session but can go back to it whenever I get bored of shooters. The slow pace is great, graphics are incredible and gameplay is well polished.
Splinter Cell Conviction - To be fair I did enjoy this, but not nearly as much as the previous games. It lacked something I can't really put my finger on... just felt like I was doing the same thing over and over, when the previous games threw me into situations I had to adapt to using my gadgets and stuff. My fav is still Pandora Tomorrow, I think a full on remake of the 1st 3 games without the ubisoft drm nonsense would be awesome.
Starcraft 2 - Got a free 10 hour demo of this with my GPU, absolutely loved it, easily the best and most polished RTS campaign I've played... but I refuse to pay £40 to continue playing. I'll wait as long as it takes for the price to come down.
The Hunter - had to give this a quick mention, another nice slow-paced game to relieve shooting fatigue. It can be frustrating but never enough to make me quit. I have zero patience and still manage to play it, beautiful environments too
Sorry for the huge list but the Steam holiday sale had me picking up a hell of a lot of games which I was thankful I didn't pay full price for (this is a very small fraction of them

). 90% of games these days bore me... if it wasn't for the few shiners I'd have thrown it in ages ago