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+
+
+NETHACK GENERAL PUBLIC LICENSE
+
+(Copyright 1989 M. Stephenson)
+(Based on the BISON general public license, copyright 1988 Richard M. Stallman)
+
+Everyone is permitted to copy and distribute verbatim copies of this license,
+but changing it is not allowed. You can also use this wording to make the terms
+for other programs.
+The license agreements of most software companies keep you at the mercy of
+those companies. By contrast, our general public license is intended to give
+everyone the right to share NetHack. To make sure that you get the rights we
+want you to have, we need to make restrictions that forbid anyone to deny you
+these rights or to ask you to surrender the rights. Hence this license
+agreement.
+
+Specifically, we want to make sure that you have the right to give away copies
+of NetHack, that you receive source code or else can get it if you want it,
+that you can change NetHack or use pieces of it in new free programs, and that
+you know you can do these things.
+
+To make sure that everyone has such rights, we have to forbid you to deprive
+anyone else of these rights. For example, if you distribute copies of NetHack,
+you must give the recipients all the rights that you have. You must make sure
+that they, too, receive or can get the source code. And you must tell them
+their rights.
+
+Also, for our own protection, we must make certain that everyone finds out that
+there is no warranty for NetHack. If NetHack is modified by someone else and
+passed on, we want its recipients to know that what they have is not what we
+distributed.
+
+Therefore we (Mike Stephenson and other holders of NetHack copyrights) make the
+following terms which say what you must do to be allowed to distribute or
+change NetHack.
+
+COPYING POLICIES
+
+You may copy and distribute verbatim copies of NetHack source code as you
+receive it, in any medium, provided that you keep intact the notices on all
+files that refer to copyrights, to this License Agreement, and to the absence
+of any warranty; and give any other recipients of the NetHack program a copy of
+this License Agreement along with the program.
+You may modify your copy or copies of NetHack or any portion of it, and copy
+and distribute such modifications under the terms of Paragraph 1 above
+(including distributing this License Agreement), provided that you also do the
+following:
+a) cause the modified files to carry prominent notices stating that you changed
+the files and the date of any change; and
+
+b) cause the whole of any work that you distribute or publish, that in whole or
+in part contains or is a derivative of NetHack or any part thereof, to be
+licensed at no charge to all third parties on terms identical to those
+contained in this License Agreement (except that you may choose to grant more
+extensive warranty protection to some or all third parties, at your option)
+
+c) You may charge a distribution fee for the physical act of transferring a
+copy, and you may at your option offer warranty protection in exchange for a
+fee.
+
+You may copy and distribute NetHack (or a portion or derivative of it, under
+Paragraph 2) in object code or executable form under the terms of Paragraphs 1
+and 2 above provided that you also do one of the following:
+a) accompany it with the complete machine-readable source code, which must be
+distributed under the terms of Paragraphs 1 and 2 above; or,
+
+b) accompany it with full information as to how to obtain the complete machine-
+readable source code from an appropriate archive site. (This alternative is
+allowed only for noncommercial distribution.)
+
+For these purposes, complete source code means either the full source
+distribution as originally released over Usenet or updated copies of the files
+in this distribution used to create the object code or executable.
+
+You may not copy, sublicense, distribute or transfer NetHack except as
+expressly provided under this License Agreement. Any attempt otherwise to copy,
+sublicense, distribute or transfer NetHack is void and your rights to use the
+program under this License agreement shall be automatically terminated.
+However, parties who have received computer software programs from you with
+this License Agreement will not have their licenses terminated so long as such
+parties remain in full compliance.
+Stated plainly: You are permitted to modify NetHack, or otherwise use parts of
+NetHack, provided that you comply with the conditions specified above; in
+particular, your modified NetHack or program containing parts of NetHack must
+remain freely available as provided in this License Agreement. In other words,
+go ahead and share NetHack, but don't try to stop anyone else from sharing it
+farther.
+[ Home | Version 3.4.3 | Contact Us ]
+
+
+
+Hosted by:
+NetHack is Copyright 1985-2003 by Stichting Mathematisch Centrum and M.
+Stephenson. See our license for details.
+This site is Copyright 1999-2009 by Kenneth Lorber, Kensington, Maryland.
+
+
+
+
+
+