The Orion Nebula is an open-end, mixed-moderated, play-by-mail (PBM) space opera.
Players could roleplay various positions including: Starships, Cities, Starbases, Ground Parties, and Black Markets.
[2] In its September–October 1991 issue, the editor of Paper Mayhem announced that Orion's Nebula and its publisher were no longer running.
[3] Players could roleplay various positions including: Starships, Cities, Starbases, Ground Parties, and Black Markets.
[3] Groups of ten or more players could also custom-design a government type prior to game start.