2011 was an incredible year for co-op gamers. We saw 100s of releases of co-op games. When we started this site, co-op was barely a bullet point on the back of a box, now it’s a standard feature in many AAA titles. After sifting through all the titles we've weighed in, discussed and voted on our favorites for the year. Here are is the 4th Annual Co-Op Game of the Year Awards.