News doing the rounds at the moment, is that Valve seem to be tightening their rules concerning games with sexual content.

Here's developer Lupiesoft as an example, who made Mutiny!!, a visual novel with puzzle mini-games, ship combat and it even supports Linux:

We've just received some troubling news today that @steam_games has decided to pull down our titled "Mutiny!!" within 2 weeks for 'reports of pornographic content'. Now those of you who know @Lupiesoft know that we don't put that on Steam, or advertise that content on Steam. — Lupiesoft (@Lupiesoft) May 18, 2018

The developer continued on from this tweet, to mention that their publisher even met with Valve previously and apparently they didn't have a problem then.

Here's another example from developer HuniePot, who made HuniePop which also supports Linux:

- IMPORTANT NOTICE -

I've received an e-mail from Valve stating that HuniePop violates the rules & guidelines for pornographic content on Steam and will be removed from the store unless the game is updated to remove said content. — HunieDev (@HuniePotDev) May 17, 2018

Honestly, I don't really get what Valve's doing. There must be some ridiculous business-type decision behind it. Perhaps they think such games are putting off some bigger publishers, as if somehow they think it makes Steam look less attractive? I do always find this odd, that content of a sexual nature is so often frowned upon, when games where you brutally murder people for 90% of the gameplay are often promoted by Valve.

Worth point out, that itch.io is a rather open store, as I understand it developers themselves set the amount they wish to give to itch out of their sales (even if it's nothing) and they even have an open source client which is due a big upgrade soon. As much as I personally like Steam (it is my favourite store), I do wish more games were available on itch.io. Competition is healthy, the bigger players need it to keep them on the straight and narrow and we all know this.