A good system for describing a game could also be used to help create narration of movies for visually impaired people. Or even descriptions of audio for those with hearing loss.
If you've never done it, find a TV and movie or show that has audio descriptions of visuals for visually impaired audiences. It's kind of an interesting experience to hear a voice over describing the scene.
One of my favorites was the description of the opening Paramount logo animation. Something like, "Stars flying from a dark sky skim across the surface of a calm lake towards a distant mountain, then circle the mountain as the name 'Paramount' appears"