
Modern Warfare 2 hits the Xbox 360 this Tuesday, November 10th. To celebrate we're going to have a special Xbox Live Co-Op night this Thursday, November 12th. We'll be checking out the 23 spec ops missions in the game's two player co-op mode.

It's time for another Xbox 360 co-op night, and this month we're heading to the Borderlands. Find out how you can join up on Thursday, October 29th. To celebrate - we're giving away one copy of the game!

This Thursday, October 15th, we'll be hosting an Xbox Live Co-Op Night featuring The Beatles: Rock Band. So whether you need a John, Ringo, Paul or George - we've got you covered to make your band a little more complete and your harmonies a little more sweet.
Halo 3: ODST is out this Tuesday, September 22nd, and despite our favorable review of the game, we had one major complaint - no co-op matchmaking. Thankfully we got you covered with our first of many ODST co-op nights.

This Thursday, September 10th, we're going to be holding an Xbox Live Co-Op night for the XBLA title Madballs in... Babo Invasion. It's a game we reviewed pretty highly, and thanks to a unique four player co-op experience, we think it's one we need to share! So much so that we're giving away 5 copies!

That's right, we're going back to our roots for this month's co-op night! With all the talk of Halo 3: ODST it's time to get in the Spartan mood with the original Halo 3 and its four player co-op campaign. Find out how to join us in our monthly Xbox Live Co-Op Night!

`Splosion Man is coming to the Xbox Live Arcade this Wednesday, July 22nd with it's furious and gaseous four player cooperative gameplay. For 800 you'll get 50 multiplayer levels to play with your friends on top of the game's single player mode. What's more the game supports unlockable Avatar items, free premium themes and more just by blowing stuff up. How awesome is that?
We're also hosting a co-op night to celebrate! Want to join? Read on to find out how!

There's something strange in Xbox Live's hood - it's our next co-op night! We're getting together for our next official Co-Op night on Xbox Live with Peter, Ray, and the whole Ghostbusters crew. Want to join up? Read on to find out how.

June marks our 1 year anniversary for the official Xbox Live Co-Op Nights! Thats' right, one year ago we kicked off an idea of getting gamers together to play co-op with Halo 3, and now 13 co-op nights later (we had a bonus one in there) we're still going strong!
This month we're taking to the skies in Tom Clancy's H.A.W.X. and it's four player drop-in and drop-out co-op.

It's time to team up with a friend and take down those covenant bastards in the large scale warfare of Halo Wars for the Xbox 360. We'll be heading online for our monthly co-op night with Ensemble's final game, read on to find out how you can join!


| 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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