From EncyclopAtys
Atys is the planet on which the game of Ryzom takes place.
Atys is a living planet that is growing all the time. It is composed of multiple layers: the crust being the ground level, and beneath that are the twisting passages of the Prime Roots that stretch below the surface, and below that are the core levels. Above the surface is a network of huge branches, the canopy that extends towards the sky gradually forming another layer that will eventually become the new surface of Atys.
The lands that are explored by homins are only a small portion of the surface of Atys, and a small portion of the Upper Prime Roots. No homin has ever set foot in the deeper levels of the Prime Roots, in the Core, or on the Canopies.
Nevertheless the known regions of the world have widely varying ecosystems already.
History
There are many legends about the origin of Atys and nobody is quite sure what the true story is. The Kami and the Karavan both have their own stories about how Atys came to be.
Known World
Click a region:
Continents
Pieces of Atys
Since everything in the game takes place on Atys, it's far too much for one single article and most pieces of Atys have their own articles. See for example: