I have The witcher 2: Assassins of kings but I do not have the digital premium but I doubt anything truly different is added besides more quests or deeper story line. And in my witcher 2 the closest thing you can get to online play is doing the arena which posts how well you did on a leader board of other people who also play the game and have done arena. Thats about it for online play, you never get to play with anyone else really, but thats not the point of this game anyway its supposed to be a difficult single player rpg with a amazing story line where every choice is harder then the next.