Guild Wars is an online rpg developed by ArenaNet, a subsidiary of South Korean game publisher NCSOFT, and released in 2005. As the original instalment of the Guild Wars series, its campaign was retroactively retitled Guild Wars: Prophecies to differentiate it from the content of subsequent releases. The game contains a co-operative role-playing portion and a competitive Player versus Player (PvP) portion. In PvP, players may use either their co-operative characters or PvP-exclusive characters who are inherently maximum level and have account-based access to unlocked content.