spelunky/COPYING.txt

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Spelunky® User License v1.1b
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Copyright (c) 2008, 2009 Derek Yu and Mossmouth, LLC

Last Updated on December 25th, 2009

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1. Preamble
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As of December 25th, 2009, I'm releasing the .gmk files for Spelunky and the
Spelunky configuration program to the public.  The game and the source code are
being provided to you for the purpose of learning, entertainment, and sharing
with the Spelunky community.

I'm interested in seeing what you guys create!  Happy Spelunky-ing!

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2. Definitions
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"Mossmouth" is defined as Derek Yu and Mossmouth, LLC.

The "Game" is defined as the Spelunky game, its program, and all related files,
including, but not limited to, the Spelunky configuration program.

The "Source Code" is defined as the .gmk files for Spelunky and the Spelunky
configuration program, and all of the objects, scripts, sprites, and tiles
contained within those files.

"Covered Works" are defined as the Game, the Source Code, and any modified
versions of the Game and the Source Code.

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3. Rights Granted
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The rights granted under this license are granted for the duration of
the copyright.

You may modify and redistribute the Game and its Source Code under the following
conditions:

  (1) This license and any appropriate copyright notices in the Source Code are
      kept intact.

  (2) You may not sell Covered Works.

  (3) You must display an appropriate copyright notice somewhere in the beginning
      of all Covered Works and in any documentation accompanying such
      Covered Works.

  (4) If you share a modified version of either the Game or its Source Code with
      others, you must not present it as an unmodified, or official, version of
      the Game or the Source code.  Please make it apparent that it is a mod.

By accepting this license you are agreeing not to restrict or prevent Mossmouth
from modifying or adding to Spelunky in any way.

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4. Disclaimer of Warranty
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The Game and its Source Code are provided WITHOUT WARRANTY; without even the
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

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5. Limitation of Liability
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In no event, unless required by applicable law or agreed to in writing will any
copyright holders be liable to you for damages, including any general, special,
incidental, or consequential damages arising out of the use or inability to use
the Game, the Source Code, or modified versions of the Game or the Source Code,
even if such holder has been advised of the possibility of such damages.  Such
damages include, but are not limited to, loss of data or data being
rendered inaccurate.