Haha, thanks! We're really glad you liked it! The demo for the sequel is coming out in about a month, so maybe keep an eye on that.
As for your question, buying the game on Itch gives us a little more money than Steam, but Itch doesn't show NSFW games on its searches at all anymore, so reviewing us on Steam is arguably the best way to support us. Or even just giving us feedback on what you did/didn't like and what you think could've been done better. That way we can make better things in the future. That goes for everybody, really!
We used to have a Patreon, but have since removed it. I just didn't have a lot to post (and the things I did felt weird to paywall, since they were just WIP sketches from Sulcate and behind-the-scenes stuff - I'd rather just show that stuff publically). It also didn't get a lot of traction, and I'd rather spend my time on game development to begin with, so it just didn't really make sense to me.