"Byss and the Deep Core" is a digital addition to the Star Wars Roleplaying Game, brought to you by Wizards of the Coast as part of their Planet Hoppers series. Rodney Thompson authored it, with gratitude to Daniel Wallace, and it was released in April of 2005.
Within the Deep Core, at the center of Imperial territory, resides the enigmatic world of Byss. Once a thriving, bountiful world, Byss served as a personal haven for Emperor Palpatine, a beautiful resort designed to entice loyal subjects to populate the Core. As time passed, the Emperor's dark side influence gradually tainted the planet, ultimately turning it into one of the most potent dark side locations throughout the galaxy...