Avernum 6 Version 1.0 is out for Windows there's also a demo to check out.
More information.Avernum 6 is now available for both Windows and Macintosh! And rest of description is same! At last, the epic Avernum saga comes to an end. The subterranean world of Avernum is being ravaged by famine and barbarian invaders. Explore the enormous underworld, full of dungeons, powerful artifacts, and cunning foes. Go forth and determine the final destiny of your people! Come get the huge, free demo.