- Home: https://www.nethack.org/, https://sourceforge.net/projects/nethack/
- Media: https://en.wikipedia.org/wiki/NetHack
- Inspiration: Hack
- State: mature
- Download: https://www.nethack.org/common/index.html
- Keyword: role playing, roguelike
- Code repository: https://github.com/NetHack/NetHack.git (@created 2015, @stars 2151, @forks 392), https://github.com/Vanilla-NetHack/NetHack-3.4.3.git @add (@created 2010, @stars 200, @forks 105), https://git.code.sf.net/p/nethack/NetHack
- Code language: C
- Code license: Custom (Nethack General Public License)
- Developer: Adam Powers, alkom, Bart House, chasonr, copperwater, David Cohrs, Dean Luick, Derek, Derek Ray, Dion Nicolaas, Feiyun Wang, HMM, Janet Walz, Jean-Christophe Collet, Kenneth Lorber, Kestrel Gregorich-Trevor, Kevin Hugo, Mak Kolybabi, Michael Meyer, Mike S, Mike Stephenson, NetHack Read-only user, nhkeni, nhmall, NHTangles, Pasi Kallinen, Pat Rankin, Patric Mueller, SHIRAKATA Kentaro, Tung Nguyen, vultur-cadens, Warwick Allison
Single player dungeon exploration game that runs on a wide variety of computer systems. See also NetHack Falcon's Eye, a graphical modification of NetHack.