This is a Debian prepackaged version of the game amphetamine. This package was put together by Joey Hess , using sources from: http://www.dataway.ch/~lukasl/amph/amph.html The file Gifload.cpp has the following copyright: /* * xgifload.c - based strongly on... * * gif2ras.c - Converts from a Compuserve GIF (tm) image to a Sun Raster image. * * Copyright (c) 1988, 1989 by Patrick J. Naughton * * Author: Patrick J. Naughton * naughton@wind.sun.com * * Permission to use, copy, modify, and distribute this software and its * documentation for any purpose and without fee is hereby granted, * provided that the above copyright notice appear in all copies and that * both that copyright notice and this permission notice appear in * supporting documentation. * * This file is provided AS IS with no warranties of any kind. The author * shall have no liability with respect to the infringement of copyrights, * trade secrets or any patents by this file or any part thereof. In no * event will the author be liable for any lost revenue or profits or * other special, indirect and consequential damages. Graphfil.hpp has the following copyright: ** Copyright (C) 1994 by Chris Laurel ** email: claurel@mr.net ** snail mail: Chris Laurel, 5700 W Lake St #208, St. Louis Park, MN 55416 ** ** This program is free software; you can redistribute it and/or modify ** it under the terms of the GNU General Public License as published by ** the Free Software Foundation; either version 2 of the License, or ** (at your option) any later version. ** ** This program is distributed in the hope that it will be useful, ** but WITHOUT ANY WARRANTY; without even the implied warranty of ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ** GNU General Public License for more details. The remainder of amphetamine was written by Jonas Spillmann , and is is GPL'd. On Debian systems, the full text of the GPL can be found in /usr/share/common-licenses/GPL-2.