That makes two spiritual successors for the Descent series. Wonder which will be better.
There's actually 5 that I know of off-hand, but this and Underground are the two most "official".
Honestly, I'm not convinced either of them will be too great. Underground has made several serious design deicision errors, and this one looks like Descent 3 (which I personally was not a big fan of).
But we'll see lol :)
EDIT: I stand corrected. This looks FREAKING AWESOME! I'm really really sad that's it's singleplayer only (at least for now), but other than that I'm REALLY excited about it!