It’s a widely-circulated bit of nerd trivia that The Expanse, the popular series of science fiction novels and rather good television show, actually started as a tabletop roleplaying and forum play-by-post setting. Well, now the authors are partnering with publisher Green Ronin to create a proper version of the setting in pen and paper: The Expanse Roleplaying Game.
https://www.pcgamer.com/the-expanse-is-getting-a-tabletop-roleplaying-game/