PvP plays a BIG part in this game, you can kill anyone in any pvp zones (almost the whole map other then some towns), in most town PvP will be off and in some town PvP will be on but when you kill someone in a pvp town the town you will be hunted down by the town's guards. When you kill a player you will be given a 'red' status mean you are a crime and when your killed you will be send to jail. The PvP in the game will be open world meaning you don't have to challenge your enemy to kill them.
PvP system
