If you look it up in youtube, there must be a playthrough of the game that starts with an in-game tutorial. Basically, it uses normal game controls to move and combat, but being the protagonist a blind person, you need to use audio cues to be effective. For example, in the combat system you have enemies that circle around you, and randomly attack. You use noise directionality to counter the attack in the right direction. In the game I have in mind, instead, commands are only given as natural language text (like in text-adventures) so that there cannot be live action like in that game.
Yes, I also sense commercial opportunities, although, I am no business person. It is a crossing-point of different entertainment genres that may be quite different among themselves (eg, video-games, written narrative, radio-dramas, audible books, …) If you find the perfect balance among the various ingredients coming from those different worlds, you may well hit a best seller. But there are also chances that the recipe is too weird, and ends by repelling each and every buyer from all of those sectors… 
I am not sure I understand what a glorified logging system is, but from your descriptions, I think there are similarities in what you’re trying to achieve, and my plan. If you would like to join forces, as said, I am interested in dev.t p’ships on a hobby basis. Hobby I say, but It is my intention to shape the activity so that it aims at a concept demo. Depending on how the demo pans out, I would then consider a professional follow-up. Cheers,