https://www.cnbc.com/2018/06/07/steam-store-to-allow-everything-after-banning-active-shooter.html

Gaming service Steam has changed its content policy to allow publishers to add anything to its store — but with some exceptions.

Valve Corporation, the parent company of the games distributor, said in a blog post Wednesday that it would "allow everything" on the Steam Store, apart from games that it described as "illegal, or straight up trolling."