List of open-source video games

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This is a selected list of open-source video games. Open-source video games are games assembled from and are themselves open-source software, including public domain games with published source code. This list includes games in which the game engine is open-source but the game content (media and levels, for example) may be under a different license.


Open engine and free content[edit]

The games in this table are developed under an open-source license with free content which allows reusage, modification and commercial redistribution of the whole game. Licenses can be a Public Domain, GPL license, BSD license, Creative Commons License, zlib license, MIT license, Artistic license and more (see the comparison of Free and open-source software and the Comparison of free and open-source software licenses).

   Title    First Release Last Update Genre Engine License Content License Dimensions Additional Information
0 A.D. 2009 2015 RTS GPLv2 CC BY-SA 3D Historical, cross-platform RTS, using an original engine named Pyrogenesis. Game source-code released July 10, 2009.[1]
2048 2014 2014 Puzzle MIT MIT 2D A sliding block puzzle game.
Armagetron Advanced 2001 2015 Racing GPL GPL 3D A multiplayer, 3D Tron lightcycle racing game.
AstroMenace 2007 2013 Arcade GPL GPL, CC BY-SA 3D A top-scrolling space shooter.
Battle for Wesnoth 2005 2015 TBТ GPL GPL 2D Turn-based tactical strategy game with RPG elements. Includes single-player campaign and skirmish modes as well as multiplayer.
Biniax 2005 2012 Puzzle Zlib License Zlib License 2D ?
Blades of Exile 1997 2011 RPG GPL GPL 2D Was originally a commercial product of Spiderweb Software.
Blob Wars 2003 2009 Platformer, Action-adventure GPL GPL, CC BY-SA, other open source 2D, 3D ?
Bos Wars 2004 2013 RTS GPL GPL Isometric 2D 2D RTS running on a modified version of the Stratagus engine.
BZFlag 1997 2012 Tank FPS LGPL LGPL ? ?
Cataclysm: Dark Days Ahead 2013 2014 RPG/Roguelike CC BY-SA CC BY-SA ? A post-apocalyptic, survival roguelike with an open-ended gameplay. Had a successful crowdfunding campaign on kickstarter.com in 22 June 2013.[2]
Chromium B.S.U. 2000 2013 Arcade Artistic Artistic[3] ? A fast paced, arcade-style, top-scrolling space shooter
Colossal Cave Adventure 1976 1995 Text adventure Public domain[4] Public domain Text The original text adventure game by Crowther / Woods.
Crossfire 1992 2014 MMORPG GPL GPL ? Crossfire originally started as a Gauntlet clone[5] developed by Frank Tore Johansen at the University of Oslo, Norway.[6]
Diamond Trust of London 2012 2012 TBS Public Domain Public Domain 2d Following a Kickstarter crowdfunding campaign Diamond Trust of London was developed by Jason Rohrer and published by indiePub. On August 28, 2012 it was released for the Nintendo DS. The game has been placed in the public domain, hosted on SourceForge, like most of Rohrer's games.[7]
Dungeon Crawl Stone Soup 2006 2015 Roguelike GPL CC0 ? An open-source fork of the 1997 game Linley's Dungeon Crawl.
Endgame: Singularity 2005 2011 science fiction/AI simulation game GPL GPL 2d written in Python
Enigma 2003 2014 Puzzle GPL GPL ? Oxyd clone.
Fish Fillets NG 2004 2011 Puzzle GPL GPL ? Released commercially as Fish Fillets in 1998. Source released in 2002 under the GPL.
FlightGear 1997 2015 Flight Sim GPL GPL 3D Microsoft Flight Simulator inspired clone.
Freeciv 1996 2015 TBS GPL GPL Isometric 2D Civilization II clone.
FreeCol 2003 2015 TBS GPL GPL Isometric 2D Sid Meier's Colonization clone.
Freedoom 1993 (2001) 2014 FPS BSD BSD[8] ? Doom content/resource clone.
Frozen Bubble 2002 2008 Puzzle GPLv2 GPLv2 2D Puzzle Bobble clone.
Gang Garrison 2 2008 2014 Shooter GPL GPL ? A retro "demake" of Team Fortress 2.
Glest 2004 2008 RTS GPL CC BY-SA 3D 3D RTS game with two factions, A.I. and same-platform networking support. Development ceased in 2008. Two forks exist, named MegaGlest and Glest Advanced Engine.
Globulation 2 2008 2009 RTS GPLv3 GPLv3 2D Currently[when?] in open beta.
GLtron 2003 2003 Racing GPL GPL 3D Based on the light cycle portion of the film Tron.
GNOME Games 1998 2010 Various GPL GPL ? A collection of games accompanying the rest of the GNOME desktop environment.
GNU Chess 1984 2015 TBS GPL GPL 2D ?
GNU FreeDink 1997 2012 RPG GPLv3 zlib, other free licenses[9] ? Port from the Dink Smallwood game with free sound replacements
GNU Go 1999 2009 TBS GPL GPL ? ?
Hedgewars 2007 2015 Artillery game GPLv2 GPLv2 2D Worms clone.
KDEGames 1997[10] 1998[11] 2009 Various* GPLv2 GPLv2 *Collection of games provided with the official release of KDE.
Kiki the nano bot 2003 2007 Puzzle Public domain Public domain ? Mixture of Sokoban and Kula World.
Lincity 1999 2013 City-building game GPL GPL ? SimCity clone.
Linley's Dungeon Crawl 1997 2005 Roguelike LGPL LGPL ? Roguelike game.
Liquid War 1995 2014 Maze games GPL GPL 2D 2D game in which you control particles and move them to defeat the opposing side.
MegaGlest 2010 2015 RTS GPL CC BY-SA 3D Cross-platform 3D RTS for up to eight players (can be A.I. controlled) on seven factions. MegaGlest is a fork of Glest.
MegaMek 2005 2009 TBТ GPL GPL ? Simulates the Classic BattleTech board game.
Micropolis 1989 (as SimCity)
2008 (as Micropolis)
2008 City-building game GPLv3[12] GPLv3 ? Open-source release of SimCity. Also known as OLPC SimCity.[13]
Microwar 2000 2009 Arcade BSD BSD ? A 'Space Invaders' style arcade game, in the cruel world of micro-computer industry.
Moria 1983 1999 RPG/Roguelike GPL[14] GPL 2D A roguelike RPG based heavily on J. R. R. Tolkien's novel The Lord of the Rings.
NetHack 1987 2003 RPG/Roguelike Nethack GPL Nethack GPL Text A single player dungeon exploration game.
Netrek 1988 2011 Shoot 'em up MIT MIT 2D Successor to 1986's Xtrek, Netrek was first played in 1988. It was the third Internet game, the first Internet team game, and as of 2011 is the oldest Internet game still actively played.
Nexuiz 2005 2009 FPS GPL GPL 3D Forked into Xonotic following a commercial licensing agreement by a minority of the development team.
Oolite 2006 2015 Space Sim GPLv2 GPLv2 3D Elite Clone
OpenArena 2005 2012 FPS GPLv2 GPLv2 3D Quake III Clone
OpenCity 2003 2008 City-building game GPL GPL 3D SimCity Clone.
OpenClonk 2010 2015 Action, RTS, Platform ISC CC BY 2D Successor of the Clonk shareware series
Pingus 1998 2011 Puzzle GPL GPL 2D Lemmings clone.
Pioneer 2006 2015 Space sim GPLv3 CC BY-SA 3D Inspired by Frontier: Elite 2
PokerTH 2006 2014 Card GPL GPL 2D ?
PySol 2001[15] 2009 Card games, Patience GPLv3 Public domain and GPLv3 2D ?
Red Eclipse 2011 2015 FPS zlib CC BY-SA / CC BY [16] 3D Cube 2: Sauerbraten engine.
Rigs of Rods 2007 2015 Vehicle Sim GPLv3 GPLv3 3D Rigs of Rods was initially created as an off-road truck simulator, but has developed into a versatile physics sandbox.
Rocks'n'Diamonds 1995 2013 Puzzle GPLv2 GPLv2 2D A scrolling tile-based computer puzzle game that can be described as a combined Boulder Dash, Supaplex, Emerald Mine, and Sokoban clone.
Ryzom 2004 2015 MMORPG AGPL CC BY-SA 3D All textures and effects, 3D models, animations, characters and clothing (no music or sounds) are under CC BY-SA.
Scorched 3D 2001 2012 Artillery game GPL GPL 3D Clone of Scorched Earth (video game)
Secret Maryo Chronicles 2003 2009 Platformer GPLv3 GPLv3 2D 2D platformer inspired by the Super Mario series.
Simutrans 1997 2014 Business Sim Artistic Artistic 2D Similar to Transport Tycoon and its open-source clone, OpenTTD. The player must build a profitable transportation system.
Sintel The Game 2012 2012 RPG GPL CC BY, GPL 3D A game based on the Blender Foundation movie, Sintel.
Smash Battle 2008 2009 Platformer GPLv3 CC 2D Smash Battle is a Retro 8-bit style platform shooter, inspired by the battle mini-game from Super Mario Bros. 3.[17]
Sopwith 1984 2014 Shoot 'em up GPL GPL ? The C and x86 assembly source code to Sopwith was released in 2000,[18] at first under a non-commercial use license, but later under the GNU GPL at the request of fans.[19]
Space Station 13 2003 2013 RPG GPLv3+ CC BY-SA 2D A multiplayer, 2D, sprite and tile based role playing game.
Speed Dreams 2010 2012 Sim racing GPLv2+ FAL ? Forked from TORCS in late 2008.
StepMania 2005(?) 2015 Rhythm game MIT[20] MIT 2D and 3D A DDR clone, the player must hit buttons or keys in time with the music.
SuperTux 2003 2013 Platformer GPL GPL 2D 2D platformer inspired by the Super Mario series.
SuperTuxKart 2006 2015 Racing GPL GPL 3D Arcade racing game similar to Mario Kart.
Teeworlds 2007 2014 Platformer zlib CC BY-SA 3.0 (except font) 2D 2D side-scrolling shooter.
Tenés Empanadas Graciela 1996 2007 TBS GPLv2 GPLv2 ? Based on the boardgame Risk.
The Castle Doctrine 2014 2014 MMO Public Domain Public Domain 2d A game by Jason Rohrer, developed on a Sourceforge[21] repository and sold on Steam for 14.99$.[22]
Tremulous 2006 2009 FPS GPL CC BY-SA[23] 3D Alien VS human base building, defending, and attacking opposite team.
TripleA 2002 2013 TBS GPL GPL 2D A turn based strategy game inspired by Axis & Allies and board game engine. Development is ongoing.
Tux Racer 2000 2009 Racing GPL GPL 3D ?
Tux, of Math Command 2001 2011 Educational game GPL GPL 2D ?
UFO: Alien Invasion 2006 2014 TBТ GPL GPL, CC BY-SA 3D Inspired by the XCOM-series, but with 3D-combats on surface of the earth.
UltraStar Deluxe 2007 2010 Music GPL GPL, CC 2D SingStar clone.
Unknown Horizons 2008 2014 City-building game GPL GPL, CC, OFL Isometric 2D Genre-mix of city-building game and real-time strategy game, inspired by the Anno series.
Unvanquished 2012 2015 FPS GPL CC BY-SA 3D Team-based first person shooter with strong RTS elements, derived from the Tremulous project. - Homepage
Vega Strike 2008 2012 Space Sim GPL GPL 3D Elite clone and space simulator engine.
Warmux 2002 2010 Artillery game GPL GPL 2D Worms clone.
Warzone 2100 1999 2014 RTS GPLv2 CC BY-SA 3D Post-apocalyptic, cross-platform RTS.
Widelands 2002 2014 RTS GPL GPL ? Widelands is a RTS clone of The Settlers II.
WorldForge 1998 2014 MMORPG GPL GPL 3D An open-source framework for massively multiplayer online role-playing games.
Xconq 1987 2005 TBS GPL GPL ? 4X strategy game engine.
XEvil 1994 2003 Platformer GPL 2D Fast paced side-scrolling action game.
X-Moto 2005 2012 Platformer GPL GPL 2D Elasto Mania Clone.
Xonotic 2010 2015 FPS GPL GPL 3D A fork and direct successor of the game Nexuiz.
XPilot 1992 2010 Arcade GPL GPL 2D A multiplayer Asteroids-like game.
Yo Frankie! 2008 2009 Action-adventure GPL, LGPL CC BY 3.0 3D ?

Open-source games with own but non-free content[edit]

While the games in this table are developed under an open-source license, the reusage and modification of only the code is permitted. As some of the games' content (sound, graphics, video and other artwork) is proprietary or restricted in usage, the whole games are non-free and restricted in re-usage (depending on license). The motivation of a developer to keep the own content non-free while he opens the source code is most often the protection of a game as sellable commercial product. Sometimes the motivation is the prevention of a commercialization of free product in future, e.g. when distributed under a CC NC license.

   Title    First Release Last Update Genre Engine License Content License Dimensions Additional Information
Angband 1990 2015 Roguelike GPL GPL+Proprietary[24] Text ?
AssaultCube 2006 2010 FPS zlib CC BY-NC-SA 3D Based on Cube. A lightweight online FPS (45-50 MB package), with a built-in map maker and capable of being played with a 56k connection.
C-Dogs SDL 2002 2013 Run and gun GPL Freeware 2D Overhead run and gun, with hotseat co-operative and deathmatch play for up to four players.
C-evo 1999 2008 TBТ, 4X Public domain Proprietary ? Inspired by Sid Meier's Civilization
Cart Life 2011 2014 Simulation CART LIFE'S FREE LICENSE (Permissive license) CART LIFE'S FREE LICENSE (Permissive license)/Freeware 2d In March 2014 the source code and game was made available by Richard Hofmeier for free online, saying he was finished supporting the game.[25][26] Winner of the IGF 2013 award.[27]
CodeRED: Alien Arena 2004 2011 FPS GPL Proprietary[28] ? Based on ID Software open-source engine.
Cube 2002 2005 FPS zlib Proprietary 3D Deathmatch style multiplayer gameplay with map editing.
Cube 2: Sauerbraten 2004 2013 FPS zlib Various non-free and some free licenses 3D Deathmatch style multiplayer gameplay with map editing.
Frets on Fire 2006 2008 Music GPL GPL, Proprietary 3D Guitar Hero clone.
Frogatto & Friends 2010 2011 Platformer GPL Proprietary[29] ? Initially for Windows, Linux, and Mac; hold and toss enemies, swim, talk; scripting language included.
Green Mahjong 2014 [30] 2014 Puzzle GPLv3 CC BY-NC-SA 2D Solitaire Mahjong
H-Craft Championship 2007 2015 Racing zlib[31] Free for personal use[32] 3D Sci-Fi Racer for Linux, Windows and Android which is using the Irrlicht engine.
Katawa Shoujo 2012 2012 Visual Novel MIT license (most of game and engine beside some scripts[33]) CC BY-NC-ND 2D A visual novel.
Kroz series 1987 2009 Maze GPL Freeware ? Game source released on March 20, 2009.
Lugaru 2005 2010 Action Third Person GPL Proprietary 3D A game where the player is a anthropomorphic rabbit who seeks revenge when a group of enemy rabbits kill their family.
OpenTTD 2005 2015 Business Sim GPLv2 GPLv2, CC Sampling Plus 2D An open-source clone of 'Transport Tycoon Deluxe'
PlaneShift 2001 2015 MMORPG GPL Proprietary ? Free to play MMORPG.
Steel Storm: Episode I 2010 2010 Action GPLv2[34] CC BY-NC-SA 3.0[35] ? Based on DarkPlaces. An indie top-down arcade shooter with single-player, deathmatch, and co-op.
Smokin' Guns 2009 2012 FPS GPLv2 Proprietary 3D Western-themed first-person shooter using the ioquake3 engine.
Tales of Maj'Eyal 2012 2014 RPG/Roguelike GPLv3 GPLv3+Proprietary[36] 2D ?
The Dark Mod 2009 2013 Stealth game GPLv3+ CC BY-NC-SA 3D First person stealth game in the style of the Thief (series) games ( 1 and 2 ) using a modified Id Tech 4 engine
The Last Eichhof 1993 1993 Shoot-'em-up "Do whatever your want" license (Public Domain)[37] Freeware 2D Shoot-'em-up game released for MS-DOS in 1993 by Swiss company Alpha Helix. Source code released 1995.
TORCS 1997 2013 Racing GPL Free Art License / Proprietary 3D Some car models are non-free, but there is a DFSG-compliant version which doesn't include them.
Urban Terror 2000 2011 FPS GPL Proprietary 3D Multiplayer tactical shooter based on the id tech 3 engine.
Vdrift 2005 2012 Racing GPL GPL and proprietary 3D Some datas are non-free, for example the "SV" car model, under a CC BY-NC-SA license.
Warsow 2005 2012 FPS GPL Proprietary 3D Based on Qfusion, a Quake II modification.
World of Padman 2007 2008 FPS GPL Proprietary ? Originally a Quake 3 modification. Became stand-alone in 2007, now runs on ioquake3.
Zero-K 2010 2015 RTS GPL CC BY-NC-ND[38] 3D Zero-K is a multi-platform real time strategy game inspired by Total Annihilation, powered by the Spring game engine.

Open-source remakes with non-free content from the proprietary original[edit]

The Video game remakes in this table were developed under an open-source license which allows usually the reusage, modifications and commercial redistribution of the code. The required game content (artwork, data etc.) is taken from a proprietary and non-opened commercial game, so that the whole game is non-free. See also the Game engine recreation page and the List of Engines for ScummVM.

   Title    First Release Last Update Genre Engine License Content License

Dimensions

Additional Information
Exult 1992 2012 RPG GPL Proprietary ? Engine remake of Ultima VII.[39]

Source available games[edit]

For video games in this table the source code is available but they are neither open-source software according to the OSI definition nor free software (see software with source available). These games are released under a license with limited rights for the user, for example only the rights to read and modify the game's source for personal or educational purposes but no reusage rights beside the game's original context are granted. Typical licenses are the creative commons "non-commercial" licenses (e.g. CC BY-NC-SA), MAME like licenses or several shared source licenses.

   Title    First Release Last Update Genre Engine License Content License

Dimensions

Additional Information
Jump 'n Bump 1998 1999 Deathmatch Platformer Emailware[40] Emailware ? 1998 freeware MS-DOS platform video game, written in C and Assembly language by Brainchild Design. The source code was released in 1999, then ported to a number of other operating systems and platforms via SDL.
Mari0 2012 2012 (stable), 2014 (unstable) Platformer CC BY-NC-SA CC BY-NC-SA 2D Remake of Super Mario Bros with elements from Portal.
Racer 2003 2011 (Proprietary) Sim Racing Proprietary Proprietary/Freeware ? Only source code of 0.5 version is available, all other releases are closed source.
Spelunky Classic 2008 2009 Platformer non-commercial license[41] Freeware 2d The source code of the 2008's Windows freeware version was published under a software license permitting noncommercial distribution and modification on December 25, 2009.[41] Based on this source code the game community created a community patch which added support for Mac OS X.[42][43] For the later remade 2012 release the source code wasn't provided, only for the 2008 "Classic" Spelunky version.
Visual Pinball 2000 2011 Pinball simulation editor and game MAME like license diverse ? Many free custom tables and recreations of original machines available. The program is also able to operate with Visual PinMAME

Proprietary developed games, later opened under varying licenses[edit]

For games which were originally developed proprietary as commercial closed source product, see also Category:Commercial video games with freely available source code.

See also[edit]

References[edit]

  1. ^ 0 A.D. Open-source release
  2. ^ Cataclysm: Dark Days Ahead - Dedicated Developer
  3. ^ "Chromium B.S.U. About Page". 2008-06-20. Retrieved 2010-07-13. 
  4. ^ Jerz, D.G. "Colossal Cave Adventure". Seton Hill University. Retrieved 2007-09-07. 
  5. ^ ftp://ftp.ifi.uio.no/pub/crossfire/historic
  6. ^ Re: CF: the beginning of crossfire
  7. ^ Jason Rohrer (2011-10-17). "DiamondTrust/ci/default/tree". SourceForge. Retrieved 2013-05-22. 
  8. ^ "Savannah Git Hosting - freedoom.git/blob - COPYING". Git.savannah.gnu.org. Retrieved 2009-04-04. 
  9. ^ http://git.savannah.gnu.org/cgit/freedink/freedink-data.git/tree/README.txt
  10. ^ The source code is available since September 1997.
  11. ^ was first released on 12 July 1998,
  12. ^ micropolis license
  13. ^ Simser, Bil (2008-01-10). "SimCity Source Code Released to the Wild! Let the ports begin...". weblogs.asp.net/bsimser. Retrieved 2012-12-30. [...]Don Hopkins got a lot of work done on the finishing touches on releasing the original SimCity source code under the GNU General Public Library (GPL). The code won't have reference to any SimCity name as that has all be renamed to Micropolis. Micropolis was the original working title of the game and since EA requires that the GPL open-source version not use the same name as SimCity (to protect their trademark) a little work had to be done to the code. 
  14. ^ "free-moria". Retrieved 2009-04-04. 
  15. ^ PySol Releases on Freshmeat.net
  16. ^ redeclipse.svn.sourceforge.net/viewvc/redeclipse/doc/license.txt
  17. ^ "The gameplay was originally inspired by the fantastic Mario Bros but has now changed overtime."
  18. ^ Clark, Dave (2000-10-29). "Sopwith Code Support". Retrieved 2006-12-01. 
  19. ^ Clark, Dave. "Sopwith – Source Code". Dave Clark's Home Page. Retrieved 2006-12-01. 
  20. ^ code.google.com/p/sm-ssc/
  21. ^ CastleDoctrine on sourceforge.net
  22. ^ Castle Doctrine on store.steampowered.com
  23. ^ [tremulous] View of /trunk/COPYING
  24. ^ [1] The sounds are licensed under the CC BY-NC-SA license. Shockbolt's graphics are licensed under a non-free license.
  25. ^ Petitte, Omri (20 March 2014). "Cart Life exits Steam, goes open source". PC Gamer. Retrieved 21 March 2014. 
  26. ^ cartlife_opensores.zip on the author's dropbox
  27. ^ IGF 2013 winners led by Cart Life and FTL: Faster Than Light
  28. ^ "[alienarena] Log of /trunk/docs/license.txt". Svn.icculus.org. Retrieved 2010-07-13. 
  29. ^ Developer Info Source Code and License: [...] Our code is open-source, our content isn’t.
  30. ^ http://daniel-beck.org/green-mahjong-version-0-9-live-in-store/
  31. ^ [2] "For the most part H-Craft Championship sources are released under the zlib-license."
  32. ^ [3] You are not allowed to modify or distribute the media files or use them in your own games. But you can still download the media files and they are free for personal use.
  33. ^ http://ks.renai.us/viewtopic.php?f=13&t=10054
  34. ^ "Steel Storm Episode I". blendernation.com. 
  35. ^ STEEL STORM EPISODE 1 LIMITED USER SOFTWARE LICENSE AGREEMENT "Steel Storm Episode I EULA". steel-storm.com. Retrieved 2013-08-10. For the purpose of this Agreement, the Art Assets include pk3 archive inside of "steelstorm/gamedata/" folder that contain two-dimensional and three-dimensional works of graphic art, photographs, prints and art reproductions, maps, charts, diagrams, models, and technical drawings, sound effects and musical arrangements, documentation and tutorial videos, and are licensed under Attribution-NonCommercial-ShareAlike 3.0 Unported license. The Engine, which includes Windows, Linux and Mac binaries, and the Engine's source code, are licensed under GNU GPL v2 license. 
  36. ^ In the source : "All the tiles of the "shockbolt" tileset, located in all the "gfx/shockbolt" and "gfx/lore" folders are granted to use with the Tales of Maj'Eyal game only."
  37. ^ beersrc.zip - readme "Do whatever your want" license
  38. ^ [zero-k] View of /trunk/mods/zk/sounds/music/license.txt
  39. ^ Prophet. (2002-03-28). "GameSpyDaily - Exult Interview". Archived from the original on 2002-04-02. Retrieved 2008-05-29. 
  40. ^ Jump 'n Bump readme.txt JUMP 'N BUMP by Brainchild Design in 1998 Jump 'n Bump is e-mailware. That means you're supposed to send us an e-mail. Write for example where you're from and what you thought about this game. If you do that, you will greatly encourage us to make more games for you!
  41. ^ a b Spelunky® User License v1.1b
  42. ^ Sarkar, Samit (2012-10-12). "Spelunky unofficially patched with Mac OS X support". polygon.com. Retrieved 2014-08-07. Spelunky, Mossmouth's renowned roguelike platformer, is now playable on Mac OS X, thanks to an unofficial patch from the game's community. 
  43. ^ "Spelunky v1.3 (and Source) - Now for Mac OS X and Windows". 2012-09-12. Retrieved 2012-10-05. 

External links[edit]