LambdaHack - licence
====================

A roguelike game engine in Haskell with a sample dungeon crawler, by Andres Loeh, Mikolaj Konarski and others. Source: https://github.com/LambdaHack/LambdaHack, checked at commit b0d3d43aedd2131a016acfd67f8c00fbfb95de3f (26 October 2026; checked 8 November 2026). The game has no art and no audio files; the screen is drawn with text characters. The repository has a CLAUDE.md with instructions for an AI coding assistant (Claude Code), so it was developed at least in part with AI help.

Changes: none to the game or the engine. The page that hosts it is ours (the project's own page without the icon and GitHub links, with a content security policy and a loader for the compressed .wasm, made by lambdahack-index.html.py). The WebAssembly module is built with GHC 9.12.4 and the project's own build recipe (build-lambdahack.sh, next to the build).

The file COPYLEFT of the repository (original text, Debian copyright format) lists the licence of each part:
  - everything not listed below: BSD-3-Clause (file LICENSE, original text, below);
  - the bitmap fonts 16x16xw.woff (served), 16x16xw.bdf, 16x16x.fnt, 8x8x.fnt and 8x8xb.fnt: GPL-2.0-or-later, Copyright 1997-2016 Leon Marrick, Sheldon Simms III and Nick McConnell, 2016-2023 Mikolaj Konarski (derived from Angband fonts). The source of these fonts (the .bdf and .fnt files) is in the source tarball of the project hosted next to this build;
  - Binary Sans Pro and Binary Code Pro (Binary*.woff): SIL OFL 1.1, Copyright 2010-2019 Adobe (Source), 2023 Mikolaj Konarski;
  - DejaVu LGC Sans (DejaVu*.woff): Bitstream Vera licence, public-domain DejaVu changes;
  - Hack (Hack*.woff): MIT (Expat) and Bitstream Vera.
The full texts of these licences, as in COPYLEFT, are in lambdahack-licenses.txt next to the build, together with the licences of the Haskell packages compiled into the WebAssembly module and the GNU MP library (GMP 6.3.0, LGPL-3.0-or-later or GPL-2.0-or-later, linked statically by GHC, source hosted next to the build).

1. LambdaHack: BSD-3-Clause (file LICENSE of the repository, original text)
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BSD 3-Clause License

All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright notice, this
   list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its
   contributors may be used to endorse or promote products derived from
   this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.