Come to think if it I'm not sure what Sam's plan is for releasing the game when it's finished? I wonder if he's going to put it on Steam or itch.io or only release it through Patreon.
I don't have plans to release the game on Steam/Itch.io when it's "finished". There will be no "finished" game at all, at least in the observable future.
Naked Fighter 3D is not a regular game you got from Steam. It's rather an
ongoing project that is alive while people keep their interest in it. Every one/two months I made an update with new content, new mechanics, and requested features. Each of these updates could be considered as a "full game" if you like.
I understand that people are used to the regular model when "you pay $10 and get a full game in your Steam library forever". But it's not how I see the Naked Fighter future. I want to keep it alive. Keep it continuously improved with new content. Add very specific features and fetishes that people request. And to keep it updated I need some sustainable income. That's why I choose Patreon as my main platform. To support the "ongoing project", not the "once release and forget".