Xyloxi

Xyloxi are a species of crystalline, intelligent creatures capable of travelling through space without the use of anything other than their bodies. Their various spires can be configured to perform a multitude of roles.
The green Xyloxi pictured here is called Chyriax, one of the more important characters within the entirety of the Xyth universe.

Follow the story at http://nulll.net/xera/