Devs have now confirmed this — I have heard them say this, by golly — that by Autumn of 2018 we will have a single player experience. I don't know if that means it's just ready for testing then or the full version will be out then, but I don't care. I just wish to celebrate my joy that at long last ...
An official NEW Descent title within the beloved Descent universe will have new single player missions with story and featuring new interactivity with the universe that didn't exist in previous Descent titles.
I am beyond thrilled. Five years ago, for example, it all seemed like nothing but a pipe dream that such a thing could ever happen. I don't suffer haters, despite my keen awareness that I am a nitpicking fan (as well as acknowledging that all of us nitpickers just want the game to be GREAT and that's the reason we do it).
So just a message to all the devs — seasoned or freshly recruited — THANK YOU for your dedication to this title and may 2018 be the year of your dreams coming true, besides the year that Descent: Underground sees some form of single player release!