Hey thank you for the reply and sorry for how long it took me to get back to you on this.
The self voicing is good but if the game doesn't have full keyboard support for all menus (not an issue for all blind people) if certain vital indicators aren't shown in text as well, if their are visual only puzzles ETC, then I'd say it probably shouldn't be on this tag no. Alt text is important as well of course, especially for really important images that convey necessary information. If it was just missing alt text for descriptive stuff I'd say this should still be on the tag but that should be worked on. But yeah if some of those more important things aren't there yet, I'd wait until you have a blind tester.
Try forum.audiogames.net, reddit.com/r/blind or rblind.com, or this discord server: https://discord.gg/c3rGEQFNs
You may be able to find a tester there. :)