Codemasters has released a co-op capable demo of Operation Flashpoint 2: Dragon Rising on the PC today. The demo takes place in the game's first mission, Dragon Rising, where you are inserted behind enemy lines and must destroy a radar station and SAM site. The demo supports up to four players in co-op mode.
The demo weighs in at 1.4GB and is available from various download mirrors. If you're still unsure if you want the game after checking out the demo, perhaps our review can provide the info you are missing?

Activision has announced that the demo for Marvel Ultimate Alliance 2 has hit the Xbox Live marketplace for Gold members. The demo allows players to check out the Washington D.C. mission in the game and also allows local co-op play.
Also available on both the Xbox 360 and PlayStation 3 is the $10 DLC content pack which contains five new playable characters including Carnage, Cable, Psylocke, Black Panther and unveiled today - Magneto. The DLC also includes four new challenge missions and boss encounters. You may also optionally purchase the previously exclusive pre-order character Juggernaut for $1.99.

Despite numerous people pre-loading Left 4 Dead 2's exclusive demo, PC users appear to be left in the dark waiting for it to unlock. It was originally scheduled to unlock sometime today, October 27th, but so far we just have an "unreleased" status.
We would assume Valve is aware of the problem, there's plenty of angry forum posters everywhere, but so far they haven't responded. Thankfully Xbox 360 owners are unaffected, and many have download and are currently playing said demo. We'll update the post as soon as our status changes from "unreleased" to "impending zombie horde."
Update: It looks like Valve has officially moved the demo till 11PM Pacific - or 2AM on October 28th Eastern.
Update 2: And it's pushed back again. Official time of unlocking is today, October 28th at 1PM Eastern.

Valve has unveiled the details of Left 4 Dead 2's demo, and when you can get access to it. Are you ready?
If you pre-ordered the game on either the Xbox 360 or PC you'll be able to play the demo starting on October 27. If you play on the PC, or have a Gold subscription to Xbox Live, you'll get the demo on November 3. Silver members of XBL will finally get the demo a week later on November 10.
The demo contains a section of the Parish campaign, and even includes split screen co-op for Xbox 360 gamers. If you want to preorder the game on PC you can hit up Steam's 4 pack deal and get one copy of the game for free. If you're looking for the game on 360, we recommend Amazon.com with release date delivery!
Source: Link 

If you read our impressions of the Uncharted 2 beta a few weeks back, and were a bit jealous to get your hands on the Gold Rush co-op mode, I have good news. Today is the day that everyone else, those that didn't preorder from Gamestop, gets to have access to the same demo.
The demo goes live at 2PM EDT and contains two co-op modes and a handful of versus modes across four maps. The full game is set to release on October 13th exclusively on the PlayStation 3.

A friendly reminder that the four player co-op demo for Lost Planet 2 is now available to download to your Xbox 360 console. The demo is playable over Xbox Live and features a mission from the campaign and a gigantic boss battle.
After watching the new GamesCom trailer for LostPlanet 2 - I can't get home fast enough to try the demo. Don't believe me? Watch for yourself and be the judge.

Mmmmm, sno-cones. NOM NOM NOM
Starting August 19th, which is the first day of GamesCom in Germany, Xbox Live Gold members will be able to snag the Lost Planet 2 demo on Xbox Live. The demo is the same one that's been on display at E3 and Comic-Con.
You and your squad of teammates will be facing off against a giant Salamander boss in the four player online co-op mode. There's multiple ways to kill this ugly mofo, though we highly suggest being swallowed whole and giving it a severe case of explosive indigestion. The demo also promises to show off some of the game's customization features, numerous weapons and even a co-op vehicle or two.
Lost Planet 2 features a four player co-op mode and is currently slated to ship early next year.
Soon is such a vague word. "When are you coming over?" Soon. When will the PlayStation 3 get a price cut? Soon. When can I be the most awesomest person in the whole world? Soon.
Soon is when the Xbox 360 will be getting the four player cooperative demo for Lost Planet 2, at least according to Joystiq. The demo is apparently complete and was played at a recent event for Japanese gaming magazine Famitsu as well as E3 2009.
With the game a few months from release, it would seem to be an odd time to release the demo this early - still - we aren't going to complain.
Source: Link 

The demo version for Trine has just hit the interwebs weighing in at around 500MB. Trine, as you might remember, is a three player local co-op puzzle platformer. Players are put in the role of one of three characters, each with unique abilities to solve environmental puzzles and move on through the levels.
The PC version of the game has been picked up by publisher Southpeak Interactive, and is set to for a release later this summer. There seems to be separate publishers for each version of the game, as a PlayStation Network version is coming soon as well published by Nobilis Games and there's been rumors of an Xbox Live Arcade version published by Atlus.
Currently Trine only supports local cooperative play, but we've had it on good word they'd like to get online added in sometime after release.
Source: Link 

Some people may have missed it, but a demo for Guitar Hero Smash Hits was released on Xbox Live Arcade during E3. Containing three tracks; Franz Ferdinand’s “Take Me Out,” Wolfmother’s “Woman” and Kiss’ “Rock and Roll All Nite.”, rockers can get a taste of the upgraded "classic" songs from previous Guitar Hero titles.
Guitar Hero Smash Hits is being released on the Xbox 360, PlayStation 3 and Wii this week. The game includes almost 50 tracks from previous Guitar Hero titles, all master tracks. Yes, even tracks that weren't master tracks before.
If you want to vote on your favorite Guitar Hero songs, riffs, moments, and more you can head on over to the official website and cast your vote in the 2009 Guitar Hero Smash Hits Awards.


| Game | Platform | Date |
| Star Trek: D-A-C | 11.21.2009 | |
| Serious Sam HD | 11.24.2009 | |
| Star Trek: D-A-C | 11.27.2009 | |
| GREED | 11.29.2009 | |
| Avatar | 12.01.2009 | |
| Alien Breed Evolution | 12.01.2009 | |
| Spelunker HD | 12.01.2009 | |
| Resident Evil: The Darkside Chronicles | 12.01.2009 | |
| Matt Hazard: Blood Bath and Beyond | 12.01.2009 | |
| Matt Hazard: Blood Bath and Beyond | 12.01.2009 | |
| Serious Sam HD | 12.21.2009 | |
| Guitar Hero Van Halen | 12.22.2009 | |
| Guitar Hero Van Halen | 12.22.2009 | |
| Guitar Hero Van Halen | 12.22.2009 | |
| Guitar Hero Van Halen | 12.22.2009 |
Co-Optimus Co-Op Events
Our monthly Xbox Live Co-Op Night gets you online to meet other co-op gamers. An Official Xbox Live Event!
Games for Windows Co-Op Night features monthly PC co-op gameplay. An Official GFW Event!
| Game | Platform | Added |
| Donkey Kong Country | 11.20.2009 | |
| UP | 11.20.2009 | |
| UP | 11.20.2009 | |
| UP | 11.20.2009 | |
| Diner Dash | 11.19.2009 | |
| Conflict: Vietnam | 11.18.2009 | |
| Conflict: Vietnam | 11.18.2009 | |
| Conflict: Vietnam | 11.18.2009 | |
| Conflict Global Terror | 11.18.2009 | |
| Conflict Global Terror | 11.18.2009 |
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!
Launched January 28, 2008, Co-Optimus is a website dedicated to cooperative games. The site features a focus on co-op games through a game database, blog style commentary, and featured articles. Our goal is to bring you the most comprehensive source of co-op gaming information and to inform gamers about the co-op experience.












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