I don't know about previous installments, but Divinity II does. You don't really need to have played the old ones, I don't think, since it takes place centuries after. The co-op is interesting since you are by no means required to work together. You can absolutely just sabotage your friends at your leisure, and of course, the whole point of the game is that one of the party is seeking to become a god. And only [i]one[/i].