I've said it before, but this is clearly passion project. How do I know? Well I'm a programmer too and there is way too many obvious clues, like blogposting in detail about stuff normies don't care about (shaders), reworking minute UI details over and over again etc. Years later and we're still at 2 girls to bone (or rather: be boned by) and this same dungeon. No roadmap, do deadline - no pressure.
This is also developement monetized by nu-western standard, monthly payments to, I guess, support developer better? Because there is no frequent updates and no benefits for doing so whatsoever. Yet again, no pressure for developer and sweet dosh keeps flowing.
The only solution for this deadlock problem is stop giving him your money because for sure this won't speed up developer progress, hell, it will hinder it instead. Comfort always bring stagnation. You might be mad at me and throw "think about poor solo developerino" line but that won't change reality.
Thank you for listening to my TED talk and see you next time.