Legends of Arcanis is an organized play campaign and successor to the Living Arcanis d20 campaign that was originally a part of the RPGA. The adventures are designed to fall in one of two categories: Hard Points and Soft Points.
The Hard Points are the core adventures that tell a complete story, what we call a Story Arc, and should be played in numbered order.
The Soft Points may or may not follow the current story arc and are meant to open up new vistas or explore aspects of Arcanis that the Hard Points do not. Soft Points may be played in any order, unless specifically noted.
The majority of the Legends of Arcanis adventures are designed to be played in approximately four hours, which corresponds to the time available in convention play and are a combination of roleplaying encounters with combat ones. A few adventures, designated as Battle Interactives, will normally take longer to play and focuses heavily on combat scenarios.
The current Organized Play campaign uses the new rules system as described in the Arcanis: World of the Shattered Empires roleplaying game.