← freegames

Licenses & source code

Lizenzen und Quellcode. Die Spiele sind Portierungen freier Originale; hier stehen ihre Lizenzen und die Links zum Quellcode dieser Website, Version für Version.

Source code

The complete source code of everything this site sends to your browser, as it runs here: bwege2/freegames-client at release-2026-11-02.3. It holds the website, the game SDK, every game port with its assets, the build files, the Cap'n Proto schemas the browser code is generated from, and XPilot's maps, which the game server sends to the browser; each game's folder is linked below. How to build it: README.md there. Every release is one commit and tag there, so earlier versions stay available too.

On request we send you the complete source code of every version this site served in the last three years, free of charge (contact: Impressum).

The game server, which runs only on our machine and is not distributed, is not part of it.

The website and the game SDK

Copyright © 2026 Bernhard Wege. Free software under the GNU General Public License, version 3 or (at your option) any later version, with an additional permission under its section 7 to combine them with game ports under the NetHack General Public License or GPL-2.0-only (NetHack, Frozen Bubble): notice, GPL-3.0. It comes with ABSOLUTELY NO WARRANTY. Source: web/src.

Based on freegames.stream (https://freegames.stream/). Additional terms under section 7 of the GPL-3.0 (in the notice): copies keep this line, modified versions are marked as such and are not presented as freegames.stream, and no rights to the name are granted.

The games

Each port keeps its original's license; its file names the authors, the original's license and what the port changed.

GameLicense
2048
Gabriele Cirulli, 2014
MIT (Clear Sans font: Apache-2.0) License and credits
The original
Source
A Dark Room
Michael Townsend (Doublespeak Games), 2013
MPL-2.0 License and credits
The original
Source
Abuse
Crack dot Com (Jonathan Clark, Dave Taylor and others); SDL port by Anthony Kruize, Jeremy Scott and Sam Hocevar, 1996
Public domain (game and data), GPL-2.0-or-later (SDL port), WTFPL (Lisp library); sounds and music not free License and credits
The original
Source, how it was made
Ballerburg
Eckhard Kruse, 1987
Public domain (original), GPL-3.0-or-later (SDL port) License and credits
The original
Source
Biniax
Jordan Tuzsuzov, 2005
zlib License and credits
The original
Source
Colossal Cave Adventure
Will Crowther & Don Woods, 1977
BSD-2-Clause License and credits
The original
Source
Core War
A. K. Dewdney & D. G. Jones (game); Albert Ma, Na'ndor Sieben, Stefan Strack & Mintardjo Wangsaw (pMARS), 1984
GPL-2.0-or-later License and credits
The original
Source
FreeCol
The FreeCol Team, 2003
GPL-2.0-or-later (code and most data); music CC-BY-4.0 License and credits
The original
Source, how it was made
Frozen Bubble
Guillaume Cottenceau (design and programming), Alexis Younes and Amaury Amblard-Ladurantie (artwork), Matthias Le Bidan (soundtrack), Kim and David Joham (level editor), 2002
GPL-2.0-only License and credits
The original
Source, how it was made
GLtron
Andreas Umbach, 2003
GPL-2.0-or-later License and credits
The original
Source
GNU Chess
the GNU Project, 1984
GPL-3.0-or-later License and credits
The original
Source
Hunt the Wumpus
Gregory Yob, 1973
Public domain License and credits
The original
Source
Maelstrom
Ambrosia Software; open-source port by Sam Lantinga and contributors, 1993
Zlib (code) / CC BY 3.0 (artwork) License and credits
The original
Source
Moria
Robert Alan Koeneke, 1983
GPL-3.0 License and credits
The original
Source
NetHack
The NetHack DevTeam (after Hack by Jay Fenlason and Andries Brouwer), 1987
NGPL License and credits
The original
Source, how it was made
Netrek
Kevin P. Smith and Scott Silvey, from Xtrek by Chris Guthrie; COW: Kevin Powell, Nick Trown, Jeff Nelson, Kurt Siegl and others; the Netrek developers, 1989
Netrek license (MIT-like) and BSD License and credits
The original
Source
Passage
Jason Rohrer, 2007
Public domain License and credits
The original
Source
Pinball Construction Set
Bill Budge, 1983
MIT License and credits
The original
Source
Sopwith
David L. Clark (BMB Compuscience); SDL port by Simon Howard, 1984
GPL-2.0-or-later License and credits
The original
Source
Teeworlds
Magnus Auvinen and the Teeworlds team, 2007
zlib (code), CC BY-SA 3.0 (graphics, sounds, maps), Bitstream Vera (font) License and credits
The original
Source, how it was made
Tux Racer
Jasmin F. Patry, 2001
GPL-2.0-or-later License and credits
The original
Source
Tux, of Math Command
Tux4Kids (Bill Kendrick and others), 2011
GPL-3.0-or-later License and credits
The original
Source
Worms?
David S. Maynard (C64 version with Steven Hayes), 1983
MIT License and credits
The original
Source
XPilot
Bjørn Stabell, Ken Ronny Schouten, Bert Gijsbers, Dick Balaska; XPilot NG: Uoti Urpala, Juha Lindström, Kristian Söderblom, Erik Andersson, 1992
GPL-2.0-or-later License and credits
The original
Source

Libraries in your browser

capnp-es 0.0.16 (Cap'n Proto for JavaScript): MIT, license.

License texts

The MIT, BSD and zlib licenses are in the files of the games that use them.

Trademarks

Names of games, companies and computers are trademarks of their owners; no affiliation or endorsement is implied. Pinball Construction Set was originally published by Electronic Arts (1983); this port is not affiliated with or endorsed by Electronic Arts. Worms? is David S. Maynard's game of 1983 and not affiliated with Team17's Worms™ series.