PVP System

 
  The end game of Aion revolves around battles within the Abyss (PvP zone). Within the Abyss are fortresses which can be controlled by individual Legions (Aion equivalent of a guild). Battle for control of these castles involves combat against players of the opposing faction and computer controlled NPCs at the same time, using siege weapons obtained from end game PvE raid content. Legions in control of a castle are entitled to funding from taxes and players within the faction get specials from NPCs and discounts for travel and vendor items. The game currently does not allow factions to fight against those of their own race, except for casual duels or practice in the Arena.
The participation in PvP is rewarded with Abyss Points in the game. The game ranks players as battles are won against fellow players based on their participation in the Abyss. At higher ranks the character's wings will change in appearance to show the character's elevated status. Also certain items can be purchased with these points such as high-end armor and weapons. This is referred to as the Abyss Rank system, and there can only be a limited number of high ranking players per server. The highest ranking players compete for the relatively few rank positions available. Abyss points are gained by killing other players in combat, and points are lost by being killed by another player. Higher points are awarded for a kill of a much higher ranked player than for killing an equal or lower ranked player.