

The game ranks players as battles are won against fellow players based on their participation in the Abyss. The participation in PvP is rewarded with Abyss Points in the game.

The game currently does not allow factions to fight against those of their own race, except for casual duels or practice in the Arena.

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. 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. Within the Abyss are fortresses which can be controlled by individual Legions ( Aion equivalent of a guild). The end game of Aion revolves around battles within the Abyss (PvP zone). Generally the skills located farther along in the chain are more powerful than those at the beginning, or those that have no prerequisite. Many of the skills acquired as characters progress may only be performed in a certain order, or chain.
