But the problem is always that even if you say "SP ONLY CAMPAIGN" people will play it in COOP if given the option by the game, and they'll consequently complain that it doesn't work. Maybe a very hypothetical discussion at this point, but better mentioning this before game releases than afterwards. ;p
Just curious.. but is there a particular reason why you would object to someone bringing a friend along to play the second character in their two-character group? Is that, for some reason, not acceptable on an adventure you create? Do you want to be able to insist they control both characters themselves instead of splitting the task?
Or are you talking about a game where there is only one playable character? If there's only one character to play, I would assume it would be impossible for an additional friend to join in. It's not like the game is going to create an additional character for them. That
would be weird.
