What year was the role-playing game that featured a version of the Phoenix Command system released?
Aliens Adventure Game Aliens Adventure Game is a role-playing game published by Leading Edge Games in 1990.
Star Riders Star Riders (ISBN  ) is a comedy science fiction role-playing game designed by Hans Guévin and published by Ianus Games in 1993. "Star Riders" uses the game system developed for "Teenagers from Outer Space" to parody the genre of space opera.