I've been seeing quite a few new posts lately from people trying to get themselves into audio game design. Here are a few youtube videos that are aimed at sighted game developers, but should be just as useful to audiogame developers. I'd say I agree with about 90-95% of what the advice they're giving in these videos. The videos are produced by a youtube channel called Extra Credits.
Video 1.
https://www.youtube.com/watch?v=z06QR-tz1_o
Video 2.
https://www.youtube.com/watch?v=dHMNeNapL1E
Oh, one nice thing about the Extra Credits videos is that the entire visual side to their videos are just simple pieces of artwork. You can watch their videos without actually needing to "see" their videos, and you won't miss out on anything.