Heart of Winter (HoW) was a primarily player vs. player (PvP) server. It used a server vault and required both expansion packs to play. This server was created by a disgruntled ex-developer from the Dungeon Eternal X server, who redesigned that server's setting to his own tastes, with the result being Heart of Winter. The teams on this server were called "factions", with most factions having a member who was also a Dungeon Master on the server. The server often hosted tournaments. This helped those not in a faction get a better taste of team PvP, while letting those in a faction see how enemy teams operate.