The web team for the Lord of the Rings Online has published an overview of their revolutionary Monster Play system. This dynamic is the consensual player versus player system in the game, and the article introduces players to the system, details on what can be done and more. A snippet is below:

LOTRO offers a unique form of player vs. player combat known as monster play. Players are transported to the Ettenmoors, a consensual PvMP (Player vs. Monster Player) region about the size of the Shire. Here, the Free Peoples and the forces of Angmar are in constant active conflict, and players can choose to join the fight as either their normal Free Peoples character, or as one of the servants of the Enemy!

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