Patreon, we're not sure about. Our content technically runs afoul of their rules when it comes to consensual sexual content.
As for itch.io, we made the decision to make it free because even "pay what you want" results in the game effectively being shadowbanned by itch.io's algorithm and makes it very difficult for people to find, download, update, etc...
There is one more method you can try. We have a direct donation paypal link at the bottom of the project. But it's entirely up to you.