Playing a game at its first release is a lot more draining than you might realize. Not only it stays rent-free in your mind because you're left wanting more content, but also you're going to have to wait for the next update which might be six months from now.. something you have no control over.. and you're going to take it with a smile on your face. You're likely to throw your hard earned money at the dev before he has even made any progress
Incremental development works for non-adult games on Steam because they have a software development life cycle. When it comes to adult games, there's no framework and crowdfunding platforms like Patreon and SubscribeStar are a tool to milk the game because of their monthly nature of payments. Most new devs get incredibly greedy when they start making $200+ and the focus shifts from making the next updates faster or bigger, to keeping the development cycle as long as possible to keep making money endlessly
I know it's tempting to play the new shiny thing but always safer to wait for at least 5 updates, to judge the commitment and content added. It's important to keep your wallet closed in most cases