This is from patreons community guidelinesWhut? Really? Wait?
Could you elaborate?
We also do not allow other fringe sexual fetish creations, such as incest, necrophilia, or fetish creations that is hard to distinguish from non-consensual sex.
We understand that some topics on this list such as incest or rape are a little bit more complicated because these situations are, unfortunately, part of real life. As a result, when reviewing these types of creations, the Trust and Safety team will take into consideration context including personal, historical or educational narrative. For example, survivor stories or fiction such as Game of Thrones or Lolita are allowed on Patreon.
So there should be a way to make a incest game and stay in patreon.