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Copying and licence information
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Angband is free software; you can redistribute it and/or modify it under the
terms of either the `GNU General Public License, version 2 <http://www.gnu.org/licenses/gpl-2.0.html>`_ as published by the Free Software Foundation, or the "Angband licence":

  Copyright (c) 1997 Ben Harrison, James E. Wilson, Robert A. Koeneke

  This software may be copied and distributed for educational, research, and not for profit purposes provided that this copyright and statement are included in all such copies.  Other copyrights may also apply.


With the following exceptions:

* The SDL runtime libraries (if provided with your copy of the game) are under
  the following licence:

    The Simple DirectMedia Layer (SDL for short) is a cross-platform library designed to make it easy to write multi-media software, such as games and emulators.

    The Simple DirectMedia Layer library source code is available from: http://www.libsdl.org/

    This library is distributed under the terms of the GNU LGPL license: http://www.gnu.org/copyleft/lesser.html

* Adam Bolt's (16x16) graphics may be redistributed and used for any purpose, with or without modification.

* David Gervais' (32x32) graphics may be redistributed, modified, and used only under the terms of the `Creative Commons Attribution 3.0 <http://creativecommons.org/licenses/by/3.0/>`_ licence.

* The font files are all by Leon Marrick and/or Sheldon Simms III and/or Nick McConnell, all of whom have agreed to their Angband work being released under the GPL.

It is considered good practice to retain this statement for derivatives, rather than (e.g.) redistributing Adam Bolt's tiles under the GPL, or choosing to make a variant which is only under one of the Angband or GPL licences.  This allows easier sharing of changes between variants.
