The Co-Optimus staff is working away vigorously to determine the Co-Op Game of the Year, and we'll have that to you shortly. But while you wait you may want to check out GamesRadar, who posted an article covering the same thing. I'm not sure what gives them the authority to judge co-op, after all, they aren't the prime source of co-op gaming info - but we'll give them the benefit of the doubt.
In fact the GR folks bring on ten editors to examine the lot of games...and trust us...it's a huge lot. They weigh in on zombie modes, horde modes, online modes and more. But what's most surprising is their lack of any music games like Rock Band.
With the year just about over - what are some of your standout co-op games of the year? If you had to choose just one game this year that really stood out for it's co-op experience, what would it be?
Source: Link 
Popular Stories Related to None
Call of Duty 4: Modern Warfare PS3 screenshot Get ready for a plausible rumor with a less plausible source. The internet (Read More)
Well, after a two week hiatus, This Week in Co-Op is back. Since Gears of War 2 has been quite the popular game recently, I(Read More)
Thanks to G4 TV we'll be streaming the Microsoft E3 2009 Media Briefing LIVE at 1:25 PM EDT! Check back to th(Read More)
Biohzrd451 at 06:07 AM on 12.22.2008
Left 4 Dead hands down, any game that my wife can pick up and play wins hands down in my book. 
justabaldguy at 06:50 AM on 12.22.2008
L4D. I did enjoy Mercs 2, that was great fun with a good battle buddy. But since L4D is 4 players, I'll give it the nod. I wanted badly to say Fable 2 at the beginning of the year, but no way. L4D is it, though if I play more Gears 2 that might climb up more.
OrigamiPanther at 07:24 AM on 12.22.2008
Jim just dislikes any game without Nazi zombies; he hates those cats so much. L4D seemed promising (i.e., co-op + zombies) but proved to be nothing more than a cruel tease. After all regular zombies just don't compare. 
txshurricane at 07:42 AM on 12.22.2008
I wouldn't bash L4D that hard -- it really is a great game, it's just not on my "family atmosphere" reference chart. Nazi Zombies are so much more cheesy, and I like the gun selection and the controls better. With so many games and so little time to play, the casual nature of Nazi Zombies fits my bill.
I really don't dislike L4D at all...but as you'll read in our Co-Optimus "Best Of" list, a lot of how we determine our personal favorite depends heavily on what's available to us. I missed the boat on Left 4 Dead (I used up all of my "Executive Orders" already this year...see here) so far...maybe next year.
And believe it or not, World at War is NOT my favorite game of the year. You'll see.
Biohzrd451 at 07:58 AM on 12.22.2008
To me Left 4 Dead is a step in the right direction as far as zombie type games go, however I am still holding out for a game that allows you player to pick an ordinary everyday person and attempt to survive the zombie onslaught by not just fighting but by building barricades and fortifying positions.... if they make a game like that..... I swear it will be like the last game I buy lol. 
chalyce at 08:33 AM on 12.22.2008
I will prefer CODwow , L4D & Vegas 2.All shooting games,works well on lan without internet connection ...since i have 4 pc at home.But i still miss those non shooting game like splinter cell. OrigamiPanther at 08:57 AM on 12.22.2008
I really enjoyed the first and second games in that series, but it sort of dropped off after that.
Biohzrd451 at 09:07 AM on 12.22.2008
Exactly sort of like a zombie fps meets rpg, make it online multiplayer and it is pure gold, well in my book anyway heck you could even make it like dead rising just throw in a city and custom characters and I would be onboard.Going back to Splinter Cell I loved the first one, never could get into the sequels though.
justabaldguy at 10:39 AM on 12.22.2008
Right on Bio. I really want SLOW-moving zombies, barricading, and using anything you can to fight them off. More climbing too, like trying to jump from a fence to a rooftop to escape, and they can't climb up after you. Old school zombies!You mentioned RPG elements, that would be well to see. I'd love to have stats to increase with each time I've played through a game.
Biohzrd451 at 11:13 AM on 12.22.2008
We can keep dreaming right? hehe.There is a web browser zombie game that has the elements I am talking about however not the GUI to go with it.
They could take versus to the extreme where if a player is killed by the zombies they come back as a zombie, the longer you stay alive the more you mutate into various stages of special infected... something along those lines would be ideal.
rafoca at 01:34 PM on 12.22.2008
I really wish I could say FABLE 2, but this one failed badly.My co-op goty goes for Left 4 dead. 4 players co-op, drop-in/drop-out, you can pee and the AI will control your characters, you can vote for difficult change without going to a lobby, players must cooperate in order to win... this is how co-op should always be!!!
txshurricane at 01:57 PM on 12.22.2008
What about persistent areas like in ChromHounds? 
roland at 06:11 PM on 12.22.2008
I admit, there are many games released this year that I haven't had a chance to play yet. But L4D is the best overall coop game I've played so far. It's fun, tense, exciting, at times even exhilarating. There are very few games that can pull that off.I'll also second the motion to have a game like L4D, but with RPG or slower, strategy elements.
seshat at 08:23 PM on 12.22.2008
For me the game of the year is Little Big Planet. There is no other game that has gathered the attention of any other visitor of the house more than LBP. I can play co-op with my wife, my brother, my parents, my neighbors, my kid-cousins. Anyone who sees LBP on the screen wants to play. It may not give hard core gamers a run for their money like L4D, but I haven't been able to play with a more diverse set of people any other game. 
Comment
Tags
2 player co-op
4 player co-op
beyond co-op
borderlands
call of duty
co-op release alert
contests
deals
dj hero
dlc
fairytale fights
industry news
left 4 dead 2
lego rock band
modern warfare 2
music game
nintendo wii
our weekend in gaming
patches
pc
playstation 3
playstation network
playstation portable
politics
ps3
resident evil 5
reviews
rumors
screenshots
steam
uncharted 2
videos
wii
xbox 360
xbox live arcade
Re: RE:Beware the Horde: Black..
11/22 3:20 am
What have they started calling that? Something Tuesday or Blue Monday or some silly thing.Though I do remember many of the onli
Re: co-op search
11/22 2:20 am
i don't have any of those for the PC i play battlefield 2142 and left 4 dead 1&2 on the PC along with some random free to play r
Re: THE HARD CAST (Movie, Anim..
11/22 2:17 am
The Hard Cast Facebook page is up and running. LINKIf you dig the podcast then you can become a fan and leave comments!
Re: Saints Row 2
11/21 11:34 pm
sent a request, if anyone else wants to play sent a message or request! peace
Re: [XBOX360] - Left 4 Dead 2
11/21 11:24 pm
I just got my copy of L4D2, so if anyone wants to play, please feel free to message or FR me.
Top Games on Each Platform
Borderlands on XBox 360
Uncharted 2: Among Thieves on Playstation 3
Call of Duty: World at War on Wii
AI War on PC
Castle Crashers on Xbox Live Arcade
Pixel Junk Monsters on Playstation Network
Uncharted 2: Among Thieves on Playstation 3
Call of Duty: World at War on Wii
AI War on PC
Castle Crashers on Xbox Live Arcade
Pixel Junk Monsters on Playstation Network
View the top Co-Op Games by platform including our family friendly list!
Resources
(Bitter? Me? No!)