Note that this license is an extension of the original Sauerbraten source 
code license which is included under the file "readme_sauerbraten.txt" for
reference. Both are essentially the ZLIB license, but the Tesseract license 
may include differing copyright owners and usage clarifications.

Tesseract source code license, usage, and documentation.

You may use the Tesseract source code if you abide by the ZLIB license
http://www.opensource.org/licenses/zlib-license.php
(very similar to the BSD license):


LICENSE
=======

Tesseract game engine source code, any release.

Copyright (C) 2001-2020 Wouter van Oortmerssen, Lee Salzman, Mike Dysart, Robert Pointon, Quinton Reeves, and Benjamin Segovia

This software is provided 'as-is', without any express or implied
warranty.  In no event will the authors be held liable for any damages
arising from the use of this software.

Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:

1. The origin of this software must not be misrepresented; you must not
   claim that you wrote the original software. If you use this software
   in a product, an acknowledgment in the product documentation would be
   appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
   misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.


LICENSE NOTES
=============
The license covers the source code found in the "src" directory of this
archive as well as the .cfg files under the "data" directory. The included 
ENet network library which Tesseract uses is covered by an MIT-style 
license, which is however compatible with the above license for all 
practical purposes.

Other media included with this distribution (maps, textures, sounds, models etc.)
are NOT covered by this license, and may have individual copyrights and
distribution restrictions (see individual readmes).

AUTHORS
======
Wouter "Aardappel" van Oortmerssen
http://strlen.com

Lee "eihrul" Salzman 
http://sauerbraten.org/lee/

Mike "Gilt" Dysart

Robert "baby-rabbit" Pointon
http://www.fernlightning.com

Quinton "Quin" Reeves
http://www.redeclipse.net

Benjamin Segovia

For additional authors/contributors, see the Tesseract distribution readme.