https://www.pcgamer.com/valve-appears-to-be-cracking-down-on-sexual-content-in-some-steam-games/

Valve appears to be cracking down on sexual content in Steam games, with three separate developers claiming that they've been told their games will be taken off the platform if they don't remove some of their most explicit content.

All of the games have anime-style visuals and are overtly sexual in nature, but their genres vary. Lupiesoft, developer of a visual novel called Mutiny!!, said it had been contacted by Valve about "reports of pornographic content" in its game. The developer says that it makes "sexy games" containing nudity, but that "nothing in Mutiny!! violates [Valve's] guidelines", and that the game's publisher MangaGamer had previously met with Valve to clarify what was and wasn't allowed.