The first Riileb was first mentioned in the thirteenth issue of the Star Wars: The Roleplaying Game supplement magazine series Star Wars Adventure Journal published by West End Games in 1997. It was in an article titled "Alien Encounters" written by Brian Smithson. A reduced version of the article was published in Alien Encounters which was a collection of all "Alien Encounters" articles compiled by Paul Sudlow in 1998.
The first Riileb was first mentioned in the thirteenth issue of the Star Wars: The Roleplaying Game supplement magazine series Star Wars Adventure Journal published by West End Games in 1997. It was in an article titled "Alien Encounters" written by Brian Smithson. A reduced version of the article was published in Alien Encounters which was a collection of all "Alien Encounters" articles compiled by Paul Sudlow in 1998.
- "Alien Encounters" — Star Wars Adventure Journal 13
- Alien Encounters