Thank you for your kind comment! I managed to improve the accessibility of my games a lot after people discussed some of them on the audiogames forum, giving me some helpful feedback. I made 4x4 Galaxy before that, and I know there are issues with the map - the names of the planets are displayed via tooltips, which screen readers don't recognise. I published a separate version that fixes that - it's the "screen reader friendly" file available for download. Are you playing this one?
Note that this version still does not distinguish between "known" and "visited" locations on the map (that was only added in Archipelago), so the map will just say "???" for planets you know nothing about, and the name of the planet for ones you visited or simply know about (like the "hub" planet, or the tyrant's planet in that one scenario).