What Steam operators Valve are and aren't prepared to allow onto their storefront has been a major talking point for the past year or so, especially when it comes to mature or sexually-themed content. Our Edwin's done some fine reporting on the topic and how it relates to payment processors, as well as delving into individual cases like Santa Ragione's Horses.
Now, the developers of point-and-click comedy Earth Must Die say things looked "unclear" for a bit in terms of whether they'd be able to launch on Steam, with the platform then offering a thumbs up after reviewing footage of an "alien orgy".