Angband is a dungeon-crawling roguelike video game derived from Umoria. It is based on the writings of J. R. R. Tolkien, in which Angband is the fortress of Morgoth. The current version of Angband is available for all major operating systems, including Unix, Windows, Mac OS X, and Android. It is identified as one of the “major roguelikes” by John Harris. Angband is free and open source game under the GNU GPLv2 or the angband license.
Oh hey, I just completed a couple play throughs of this a few weeks ago!
Necromancers are horribly busted.