Hack was an improved version of Rogue and introduced several new features, such as a computer pet dog following the character, several new classes, shops...
Food management was vital in Hack, for the character could easily starve to death if not properly fed.
Versions and platforms
Moria was written by Jay Fenlason in 1985 for Unix systems. Versions 1.0.1 to 1.0.3, the ones first published to Usenet, were re-written by Andries Brouwer. Several versions were developped for DOS or Atari ST.