Participation in PvP in the game is absolutely necessary. Under PvP-zone assigned to approximately one third of the game world. Characters get a warning when entering into such a zone, so if they wish, they can circumvent them by. Outside of PvP-zones are collars, dressed in each character. When you try to cause harm to another player character gets electric shock. PvP will be held throughout the game, and not just in the last stages of development. PvP includes the battle for the controversial city and area, as well as large-scale raids on the opposition - in other words, in PvP there are certain goals. Within PvP-zone players can attack at all, but an attack would entail certain consequences (: write, falling reputation with one faction). So mindlessly attacking everyone not worth it.