Update: I decided to open up the game for free again for now -- feel free to
try it on the play page. The latest blog post brought in a lot of helpful
feedback, and one of the big takeaways is that the semi-temporary graphics
there now are turning off a lot of people. So I'll likely bring on an artist at some point and reconsider the Early Access thing again when that's in better shape.
The dev process was kinda prototype -> gameplay -> playtesting
-> graphics (in progress), so the gameplay's a lot farther along than the rest.