Combo Co-Op (Local and Online Co-Op)
Borderlands 2 (360, PS3, PC) Four players team up to shoot bandits and other assorted nasty creatures on the dangerous world of Pandora. The gameplay is driven by leveling up your character, a humorous story, and a need to shoot things so you can get better guns so you can shoot tougher things to get even better guns so you can shoot... 2 player local co-op, 4 player online co-op, combo co-op [$49.99 to $59.99]
Call of Duty Black Ops 2 (360, PS3, Wii U, PC) This is the most popular videogame franchise in the world, which naturally means it’s the most hated. Most people will enjoy it, even if they won’t admit it. The four player zombie mode is good fun. 4 player local co-op, 4 player online co-op, combo co-op [$59.99]
Far Cry 3 (360, PS3, PC) The co-op mode in Far Cry 3 is a different animal from the main campaign. While it doesn’t offer many of the sandbox features from the single player game, it’s still a fun experience. The total package is excellent. 2 player local co-op, 4 player online co-op, combo co-op [$49.99 PC, $59.99 Console]
Halo 4 (360) Developer 343 Industries successfully takes the reigns from Bungie in the latest Master Chief adventure. The co-operative campaign and Spartan Ops feature a ton of co-op content. 2 player local co-op, 4 player online co-op, combo co-op [$39.99 - $59.99]
*Resident Evil 6 has two player online co-op OR local co-op.