I do wonder, I'm blind/visually impaired, I play vn's using SelfVoicing, the mode built in Ren'py enabled by pressing V, reading out everything on the screen, except for purely visual parts, then we'd need the alt text attribute added in to those bits to be able to actually understand what's going on, most vn's are playable that way, there's even this dude, nocturnalDev, who made secret island.
He made a text only version of his game using a script he shared with me a while back, I was going to attach the script here, maybe someone would be able to do something with it, would make the game way much smaller,manageable to download, but I just found out that this game has visual puzzles that can't be skipped, nothing to do there I guess.
Here's the script, maybe someone here can work with it?