* DevelopmentHell: The last version, 3.4.3, was released in 2003. Apparently, the Dev Team is still actively developing it, but each version is closed source until the binary is released.
* LongRunner: The game began as a more sophisticated version of ''VideoGame/{{Rogue}}'', named ''Hack''. It gained the "Net" part of its name when various contributors from around UseNet began adding their own features to the source code base. If you've ever seen the source code, you know it looks like something that's been edited by committee.
* UnintentionalPeriodPiece: Look at ShoutOut list above. Was this made in the 80s or what?
* TheWikiRule: There's one [[http://nethackwiki.com/wiki/Main_Page here]].