A number of "adult-themed" games on Steam are being told they need to make changes or face deletion from the store.
Not a ton of information at the moment.
More info:
'It's an Anime T***y Holocaust:' Steam Is Cracking Down on Visual Novels
After constant calls for Valve to take a more authoritative hand in censoring Steam content, Motherboard is surprised that Valve is taking a more authoritative hand in censoring Steam content.