Hit 51 last year. Not expecting to even come close to that, but we'll see.
This will be my third year keeping track. I personally define a "completion" as playing through the single player campaign (typically on normal difficulty setting). I'm not really an Achievement/Trophy whore. If I do go above and beyond, I'll make a note of it.
2011 Completed Games Tab - 27 Titles
01/15 
inFamous - Hero Story
01/22 
Disney Epic Mickey
01/30 
Bayonetta
01/31 
Sly Cooper & the Thievius Racoonus Sly Collection
02/15 Marvel vs. Capcom 3
03/09 Donkey Kong Country Returns
03/12 Red Dead Redemption
04/07 Enslaved: Journey to the West
04/13 WWE All-Stars - Cleared all Path of Champions and Fantasy Warfare matches.
05/01 
Sonic the Hedgehog 3 - Completed and collected all Chaos Emeralds in just less than 3 hours.
05/04 Batman: The Brave and the Bold - Co-op with the kids. Mainly with my youngest daughter.
05/10 
Mario Party DS - Completed story mode along with my youngest daugher. I played the harder mini-games and defeated all the bosses.
05/13 Mortal Kombat - Story Mode Completed, Completed Arcade Ladder with 28/28 Characters, Challenge Tower Completed 300/300. Didn't spend koins to skip any, Krypt Unlocked 100%.
05/25 
Legend of Zelda: Link's Awakening DX - After all these years, still my favorite Zelda game. I've lost count of how many times I've finished it, but each time is worthwhile.
05/30 
Super Street Fighter IV: 3D Edition
06/08 Red Steel 2
07/13 Legend of Zelda: Ocarina of Time 3D - N64, Wind Waker Bonus Disc, Zelda Collection, Virtual Console, and now this. The fifth time I've owned the game, and the first time I've ever finished it. Only took 13 years, but it was one hell of an adventure. Now I know why its viewed as the masterpiece it is.
08/01 
Star Fox 64 Virtual Console
08/01 
Kirby's Adventure Virtual Console
10/22 Batman: Arkham City
11/14 Super Mario 3D Land
11/26 Kirby's Return to Dream Land
12/09 Lego Star Wars: The Complete Saga - Co-op with my youngest daughter.
12/13 The Legend of Zelda: Four Swords Anniversary Edition
12/18 The Legend of Zelda: Skyward Sword - Bumped off Batman: Arkham City as my favorite game that I've played through this year. Even more so, it has successfully dethroned Link's Awakening as my favorite Legend of Zelda title.
12/26 Gears of War 2
12/30 Rayman Origins
Year-to-Date Total
3
8
6
4
1
1
: 1
: 1
: 1
: 1
TOTAL 27
2012 Completed Games Tab - 51 Titles
01/02 Uncharted: Drake's Fortune
01/04 Portal (The Orange Box)
01/09 'Splosion Man - Didn't use "Way of the Coward" to skip ANY levels.
01/09 Limbo
01/17 Resistance 3
01/19 No More Heroes
01/25 inFamous 2 - Hero Story
01/27 Batman Begins - I was very surprised by this one. While it was bogged down by the films storyline, the gameplay was great. I couldn't help but shake the feeling that I was playing a last generation installment in the Arkham series. Great pacing, and fun "fear" themed gameplay. The Batmobile segments aren't half bad either, as they run on the Burnout engine.
02/08 The Simpsons Arcade Game
02/16 Darksiders
02/17 
WarioWare, Inc.: Mega Microgame$
02/27 Vanquish
03/02 Goldeneye 007
03/06 Sin & Punishment: Star Successor
03/09 The Darkness
03/14 Dead Space: Extraction
03/17 
Abobo's Big Adventure - If you love NES era games, then you owe it to yourself to play through this flash tribute game. There are 9 stages, each paying homage to a different NES title. Tons of cameos and very funny. Here's the link.
04/20 The Maw
05/11 Kid Icarus: Uprising
05/11 Castlevania: Lords of Shadow
05/17 
X-Men: The Arcade Game
05/18 Bloodrayne: Betrayal
05/22 Resident Evil: Revelations
05/31 Batman: Arkham City - Harley Quinn's Revenge
06/01 de Blob
06/16 Dead Space
06/21 LEGO Star Wars III - Coop with my youngest daughter.
07/01 Uncharted 2: Among Thieves
07/11 Super Mario Bros.
07/14 The Incredible Hulk: Ultimate Destruction
07/24 Mario vs. Donkey Kong
07/27 Blast Corps
07/29 Super Mario 64
07/31 Final Fight - from Capcom Classics Collection
08/07 Viewtiful Joe
08/19 New Super Mario Bros. 2
08/28 
Vita Uncharted: Golden Abyss
08/31 Vita Resistance: Burning Skies
09/01 Sideway: New York
09/10 Uncharted 3: Drake's Deception
09/10 inFamous: Festival of Blood
10/09 Gears of War 3
11/03 Soulcalibur Legends
11/11 God of War (God of War Saga)
11/13 God of War: Chains of Olympus (God of War Saga)
11/15 God of War: Ghost of Sparta (God of War Saga)
11/27 Wii U New Super Mario Bros. U
11/29 God of War II (God of War Saga)
12/05 God of War III (God of War Saga)
12/12 Outland
12/13 Wii U New Scribblenauts Unlimited
Year-to-Date Total
Wii U 2
8
20
5
3
Vita 2
: 1
1
0
4
2
: 2
: 0
: 0
: 1
TOTAL 51
GAMES COMPLETED IN 2013
01/07 WWE '13
01/09 Epic Mickey: Power of Illusion
01/14 Playstation All-Stars Battle Royal
02/19 Resident Evil 6
02/19 Kirby's Dream Land
02/19 Kirby's Dream Land 2
02/24 
Kirby's Dream Land 3
02/24 LEGO Lord of the Rings - Co-op with my youngest daughter.
03/05 Epic Mickey 2: The Power of Two
03/06 Journey
03/12 Portal 2
03/19 God of War: Ascension
03/23 Gears of War: Judgement - Cleared Judgement and Aftermath campaigns.
03/31 Luigi's Mansion: Dark Moon
04/04 Hey Ice King, Why'd You Steal Our Garbage?
04/06 The Unfinished Swan
04/14 LEGO Batman 2: DC Superheroes
04/19 Disney Universe - Coop with the kids.
04/19 Injustice: Gods Among Us
05/03 The Walking Dead - Complete series.
Year-to-Date Total
Wii U
1
11
2
3
Vita
2
1
TOTAL 20