日本の Variants:

- NetHack brass
http://www11.cds.ne.jp/~youkan/nethack/

- JNetHack Next Generation
http://www.weatherlight.org/~crouton/nethack/jnhtng.html

- Silly JNetHack
http://plaza26.mbn.or.jp/~KOKA/suser/

- Rubbish JNetHack
http://www.pionet.co.jp/~shinji/rjnh/

- JSlash
http://www.kmc.gr.jp/~habu/jslash/