This year's Xbox Games Showcase was light on cooperative content; Microsoft didn't seem to focus on co-op features in any of the game reveals. Still, the showcase did show some genuinely hot games, so we can't complain too much. Some of the games shown might even end up featuring co-op that hasn't been announced yet. In the meantime, let's look at all of the games that were announced and which ones we know will have co-op.