NetHack uses the prefix "NHDT" internally to identify specific information
(such as versions and dates) produced by the NetHack Development Team. NetHack
variants should use a different prefix. This page lists the prefixes we know
We encourage projects to register to prevent confusion.
To register, send an email to firstname.lastname@example.org with the prefix
you wish to register, contact information for the project (email or URL), and
the project's name.
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NetHack is Copyright 1985-2016 by Stichting Mathematisch Centrum
and M. Stephenson. See
our license for details.
This site is Copyright 1999-2018 by Kenneth Lorber, Kensington, Maryland.