The great 'dematuring' of videogames continues with reports that Valve are now forbidding "post-launch NSFW content" for games on Steam, even those that are already "adult-only". That's according to Crimson Delight Games, the developers of fantasy RPG Tales of Legendary Lust: Aphrodisia. Instead, the updates will need to be submitted as proper official DLC so that Valve can give them a formal review. In the Reddit thread about the rejected NSFW updates, Crimson Delight have only good things to say about Valve's handling of the situation. Obviously adult games make Valve money, but it's a drop in the bucket compared to the rest of Steam's catalogue.