The Ryzom Ring is a set of tools for editing and sharing player-made "maps" that are customizable with terrain, monsters and NPCs all run by individual players.
Maps can be integrated directly into The Saga of Ryzom world of Atys, where thousands of other players can experience one person's handiwork, or kept as a private sanctuary only accessible to a select few, very privileged players. Maps can be made exclusive to player guilds or select friends while running their own invasions or events.
Player maps will be hosted on Nevrax's servers and developed with tools that have a point-and-click interface. Nevrax plans the first phase of the tools to be easy enough to use that even the most inexperienced MMG player can create content with ease.