It's the day after a popular holiday with plenty of gift-giving and many folks are looking for some opportunities for how best to celebrate their new gaming console, or gaming PC setup, with a chance to play some games with families and friends. Well we here at Co-Optimus are happy to point you towards any such "co-opportunities" we may find. Right now, the latest Humble Bundle offers up not one but two DRM free co-op titles: the hyper stylized and violent Shank 2, and the addictive tower-defense meets action RPG Dungeon Defenders. Dungeon Defenders is only available, it should be pointed out, if you pay more than the current (as of 12/26/2012 at 3:50 pm EDT) average of $6.41. As with all other Humble Bundles, though, you get more than just that.