Everyone is allowed to publish on steam, but to do so you must pay a small price fee for authorization, if you need it I can pay this fee for you by making a donation.
Viewing post in Abandoned : A tale of forgotten lives comments
Well the publisher can publish the game on steam but only for every other country. In germany the problem is just that steam has no age verification, so all NSFW games are cancelled by steam for the region. That´s just because steam don´t want to put the verification system in, so all NSFW games on steam are aviable all over the world but not in germany...