While previous Assasin's Creed games have been multiplayer, Ubisoft has taken a different route with this one and, apart from one element, it is a single-player game. The only multiplayer section is Jomsviking Recruitment. Once you've built your barracks you can recruit players from other major towns. Your own Jomsviking can also be recruited by them. If this happens, you collect silver as a reward. Having extra mercenaries are handy when you go on raids.