COPYING.txt

========================
Software and source code
========================

  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 3 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.

  You should have received a copy of the GNU General Public License
  along with this program.  If not, see <http://www.gnu.org/licenses/>.

  For details on authorship, see AUTHORS.txt


========================================
Artwork, music, and other assets/content
========================================

Artwork, music, and other non-software assets/content in this
repository are dual licensed under the Creative Commons
Attribution-ShareAlike 3.0 Unported and the GNU General Public License
as published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.

You should have received a copy of the GNU General Public License
along with this work.  If not, see <http://www.gnu.org/licenses/>.
Likewise, you should have received a copy of the Creative Commons
Attribution-ShareAlike 3.0 Unported legalcode with this work.  If not,
see <http://creativecommons.org/licenses/by-sa/3.0/>.

For details on authorship of various resources, see AUTHORS.txt