A user has suggested improving this page or section as follows:
"This page should explain storyline of Nethack as a whole, because everything about it is currently on dozens of different pages. Where is the hero from (Home-level)? Hero does the Quest to save people of his homeland (?). After that he must find Amulet of Yendor for his God. As result, he will gain immortality. Some details of the world; Castle, Astral Plane, Oracle etc. I think most of that is in game but not in wiki.
Thankfully, very few actions are mandatory, many features are randomized, and there are many ways to achieve almost everything. This adds to the stategic challenge and makes the game interesting to replay. As a side effect, there is almost no "story" in the sense of most other games.