ToME

Troubles of Middle Earth, formerly known as PernBand?, an AngBand variant.

Perhaps one of the most far-reaching of the AngBand variants out there, if features a wide variety of "classes", skill based improvement, vastly redesigned magic system, a permanent map, and numerous side-quests and dungeons. It originally was a variant from ZangBand?, and added more Pern features, including DragonRiders?. Later it added a MiddleEarth? map. It still has some Pern features, but is mostly Tolkien material.