This is the Debian GNU/Linux packaged version of the program gltron. The developer of this software is Andreas Umbach . Copyright (C) 1999 Andreas Umbach It was put together from the following sources: http://prdownloads.sourceforge.net/gltron/gltron-0.62-source.tar.gz This software is released under the terms of the GNU General Public License version 2 or later. On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL-2.