Art from the game MARS Adventure Omnibus (Savage Worlds) by Adamant Entertainment
In planetary romance, the bulk of the action consists of adventures on one or more exotic alien planets, which usually have distinctive physical and cultural backgrounds. Many planetary romance stories are a little goofy and pulpy, but some take their characters a little more seriously. Note that the “romance” part of the term doesn’t refer to romantic love, but to the old-timey definition of romances as a kind of adventure tale (science fiction itself used to be called “scientific romance”).