Other online role-playing games have PvE - player versus environment: fighting computer-controlled monsters and PvP – player versus player: human-controlled characters fighting each other.

For the first time in the MMORPG genre, Aion brings these two game features together in an evolving and seamless system. PvPvE manages the complex relationships and alliances between realms, races and guilds; it also controls the mighty Dragons, a non-player faction and a common enemy to all players, regardless of faction.