https://www.theverge.com/2019/3/6/18253664/valve-steam-rape-day-ban-sexual-assault-moderation-content-policy

Valve has at last responded to a mounting controversy concerning an indie game designed entirely around the violent sexual assault of women. The statement, posted to the Steam Blog earlier today, makes clear that Valve will in fact not distribute the visual novel, which was called Rape Day and scheduled for release in April through the company’s Steam Direct distribution channel. The declaration marks a quizzical few days of silence from the video game developer and marketplace owner, which has taken varying, occasionally radical stances to moderation on Steam in the past few years.

In a policy change announced last year, Valve said it would let basically anything onto the platform so long as it was not illegal or very obviously trolling to illicit negative reactions from the general public. So far, the only category to meet that definition included visual novels and other games featuring the sexual exploitation of children, which Valve banned last December. In this case, Valve says Rape Day posed “unknown costs and risks,” without clarifying which rule it broke.