So I paid for this game when it cost less, but currently can't access Chapter 8 (since I paid less than the $10 required to access it, I guess?)
Now I just wonder: Do I need to pay more so I've paid $10 total, or pay a flat $10?
It should be enough to pay the difference of what you paid originally. If it's not, please tell me, and I'll fix it.
Normally you have to pay the full $10 for itch to recognise that you paid enough. I've been bitten by that before on itch, or I did something wrong. OTOH, a game this great.... even if you paid 19,99 it is still a steal.