Byss was first created for the Star Wars: Dark Empire series of Star Wars Legends comic books, and first appeared in Dark Empire 2, which was written by Tom Veitch and released on February 18, 1992. The world was confirmed to exist in canon when it first appeared on a galactic map included with Star Wars: Build the Millennium Falcon 36, a magazine released by De Agostini in 2015.
Byss was first created for the Star Wars: Dark Empire series of Star Wars Legends comic books, and first appeared in Dark Empire 2, which was written by Tom Veitch and released on February 18, 1992. The world was confirmed to exist in canon when it first appeared on a galactic map included with Star Wars: Build the Millennium Falcon 36, a magazine released by De Agostini in 2015.