Lineage II quite literally puts the "multiplayer" back into the MMO genre. The title is built around universal player-versus-player combat that culminates in the major gameplay dynamic of seizing and holding one of the six major castles that dot the land. Is this a good or bad thing? It depends on your perspective. Players who are looking to just run around, do quests, kill monsters, and go on adventures by themselves or with a small group of friends are going to be dramatically disappointed. Put simply, it's almost impossible to go solo past the first few levels of the game, and the higher you go, the more people you need to be allied with in order to get anything out of it.