wumpus is a faithful transcription of the 1974 game WUMPUS for the Atari, the first computer game to maintain a consistent external map. An article on the history of this classic game can be found here.
superhack is a structurally similar game with a different premise.
The original Atari game was designed and written by Gregory Yob.
This version was cloned from the original BASIC sources by Eric
S. Raymond <esr@snark.thyrsus.com>. See ESR's home page at
http://www.catb.org/~esr/
for updates and other resources.