Dang, looks like this one might be dead already...
Last patch was over month ago. No discussions in their Discord group or on the (Steam) forums in over two weeks. And now the devs left Explorminate's Discord group earlier today (well, technically yesterday now).
I feel bad for them, but then of course, not every game is going to succeed. In addition, $30 was way too high an asking price for the product that they'd made.