Editing Quake engine (section)

==Derivative engines==
[[Image:Quake - family tree.svg|thumb|[[Family tree]] illustrating derivations of Quake engines |alt=]]
On December 21, 1999, John Carmack of id Software released the ''Quake'' engine [[source code]] on the Internet under the terms of GPL-2.0-or-later, allowing programmers to edit the engine and add new features. Programmers were soon releasing new versions of the engine on the net. Some of the most known engines are:
* '''[[GoldSrc]]''' – The first engine to be created by [[Valve Corporation|Valve]]. It was used in the [[Half-Life series|''Half-Life'' series]], and gave rise to the [[Source engine|Source]] and [[Source 2|Source 2 engines]]. The Xash3D projects, as well as the FreeHL and FreeCS ports,<ref name="freecs">{{Cite web |last=Larabel |first=Michael |date=2017-11-10 |title=FreeCS: Aiming For An Open-Source Counter-Strike Implementation |url=https://www.phoronix.com/news/FreeCS-Open-Counter-Strike |access-date=2024-07-14 |website=[[Phoronix]]}}</ref> use ''Quake'' source code in part to recreate this engine, even with a wrapper for running the game.<ref>{{cite web|url=https://www.gamingonlinux.com/2020/08/half-life-absolute-zero-mimics-half-lifes-original-vibe-run-it-on-linux-with-xash3d-fwg/|title=Half-Life: Absolute Zero mimics Half-Life's original vibe, run on Linux with Xash3D FWGS|author=BTRE|date=2020-08-03|access-date=2024-07-15|website=GamingOnLinux}}</ref><ref>{{cite web|url=https://boingboing.net/2022/03/09/play-the-original-half-life-in-the-browser.html|title=Play the original Half-Life in the browser|first=Rob|last=Beschizza|date=2022-03-09|access-date=2024-07-16|website=[[Boing Boing]]}}</ref>
* '''DarkPlaces''' – A significantly modified engine used in several standalone games and ''Quake'' mods.<ref>{{cite web|url=https://www.linuxlinks.com/darkplaces/|title=DarkPlaces – Quake modification|date=2023-10-29|access-date=2024-07-16|first=Steve|last=Emms|website=LinuxLinks}}</ref><ref>{{cite web |url=https://icculus.org/twilight/darkplaces/ |title=DarkPlaces Homepage |website=icculus.org |access-date=November 6, 2017}}</ref>  Although the last stable release was on May 13, 2014, it has received numerous updates through its [[Apache Subversion|SVN]] repository since then.<ref>{{cite web|url=http://svn.icculus.org/twilight/trunk/|title=Darkplaces subversion repository|website=svn.icculus.org|access-date=August 9, 2019}}</ref> Its home page was hosted on [[Icculus.org]] until 2021, when the engine switched to a [[Git]] repository hosted on [[GitHub]].<ref>{{Citation|title=darkplacesengine/darkplaces|date=June 14, 2021|url=https://github.com/darkplacesengine/darkplaces|publisher=DarkPlaces Engine|access-date=June 21, 2021}}</ref> The developers of ''[[Xonotic]]'' provide mirrors of DarkPlaces source code on various social coding platforms<ref>{{cite web |url=https://gitlab.com/xonotic/darkplaces |title=DarkPlaces Quake Engine on Xonotic GitLab |access-date=February 3, 2020}}</ref><ref>{{cite web |url=https://github.com/xonotic/darkplaces |title=DarkPlaces Quake Engine on Xonotic GitHub |website=[[GitHub]] |access-date=November 6, 2017}}</ref> since the game is built on and distributed with the development version of the engine.
* '''QuakeForge''' - One of the earlier major community ports.<ref name="tldp">{{Cite web |last=Stevenaaus |date=2010-03-01 |title=Game Engines |url=https://tldp.org/HOWTO/Quake-HOWTO-3.html#ss3.1 |access-date=2024-07-15 |website=Linux Quake HOWTO}}</ref>
* '''NPRQuake''' - Fork of ''Quake'' featuring non-photorealistic rendering giving it a pencil drawn look.<ref>{{cite web|url=https://boingboing.net/2018/07/30/quake-but-every-frame-rendered.html|title=Quake on me: classic shooter rendered with pencil sketch filter|first=Rob|last=Beschizza|date=2018-07-30|access-date=2024-07-15|website=[[Boing Boing]]}}</ref><ref>{{cite web|url=https://www.slideserve.com/parley/non-photorealistic-rendering-techniques-for-a-game-engine|title=Non-Photorealistic Rendering Techniques for a Game Engine|date=2014-09-11|access-date=2024-07-15|publisher=University of North Carolina at Chapel Hill|website=SlideServe|first=Adrian|last=Ille}}</ref>
* '''Tenebrae''' - Custom ''Quake'' engine with real time lighting and bumpmapping among other features.<ref>{{cite web|url=https://www.shacknews.com/article/22796/new-tenebrae|title=New Tenebrae|first=Maarten|last=Goldstein|date=2002-09-25|access-date=2024-07-16|website=[[Shacknews]]}}</ref><ref>{{cite web|url=https://lowendmac.com/2015/tenebraequake-enhanced-quake-front-end/|title=TenebraeQuake, an Enhanced Quake Front End|first=Simon|last=Royal|date=2015-10-10|access-date=2024-07-16|website=Low End Mac}}</ref><ref>{{cite web|url=https://www.insidemacgames.com/historical/news/story.php%3FArticleID=8023.html|title=New Tenebrae Release for PC|date=2003-07-14|access-date=2024-07-16|first=Galen|last=Wiley|website=[[Inside Mac Games]]}}</ref><ref>{{cite web|url=https://www.insidemacgames.com/historical/news/story.php%3FArticleID=6328.html|title=New PC Tenebrae Quake, Mac Update Soon|date=2002-10-27|access-date=2024-07-16|first=Andy|last=Largent|website=[[Inside Mac Games]]}}</ref>
* '''TyrQuake''' - A conservative focused source port.<ref name="tldp" />
* '''Fisheye Quake''' - Custom ''Quake'' engine with [[Fisheye lens|fisheye]] [[distortion (optics)|distortion]] by the author of PanQuake.<ref>{{cite web|url=https://www.shacknews.com/article/125425/cquake-how-to-run-classic-quake-maps-and-mods-on-modern-pcs?page=6|title=Part 5: Source Ports and Fisheye Quake|first=Patrick|last=Bosworth|date=2021-07-02|access-date=2024-07-16|website=[[Shacknews]]}}</ref>
** '''Blinky''' - Fork of the fisheye view along with the TyrQuake software renderer.<ref>{{cite web|url=https://www.pcgamer.com/peripheral-vision-in-games-gets-ultrawide-boost-with-new-quake-mod/|title=Peripheral vision in games goes ultrawide with new Quake mod|first=Andy|last=Chalk|date=2015-10-10|access-date=2024-07-16|website=[[PC Gamer]]}}</ref><ref>{{cite web|url=https://www.sportskeeda.com/esports/peripheral-vision-in-game-goes-ultrawide-thanks-to-the-new-quake-mod|title=Peripheral Vision in game goes Ultrawide thanks to the new Quake Mod|first=Aditya|last=Chakrabarty|date=2015-03-12|access-date=2024-07-16|website=sportskeeda}}</ref>
* '''WinQuake'''
** '''Engoo''' (Derivative of [[WinQuake]]) - Graphically enhanced software renderer based port.<ref name="neogeographica">{{Cite web |last=Baxter |first=Joel |date=2015-05-03 |title=Quake Engines, Old and New |url=https://neogeographica.com/site/pages/guides/engines.html#04 |access-date=2024-07-16 |website=Neogeographica}}</ref>
* '''Fruitz of Dojo''' - Source port aimed at [[Mac OS X]].<ref>{{cite web|url=https://www.macobserver.com/tmo/article/Quake_Gets_Universal_Binary|title=Quake Gets Universal Binary|first=Brad|last=Cook|date=2006-03-19|access-date=2024-07-15|website=The Mac Observer}}</ref><ref>{{cite web|url=https://www.mymac.com/2003/08/classic-games-quake/|title=Classic Games: Quake|date=2003-08-01|access-date=2024-07-15|first=Neale|last=Monks|website=MyMac.com}}</ref><ref>{{cite web|url=http://quake.chaoticbox.com/|title=Frank's Craptacular House of Mac Quake Stuffs|date=2019-07-01|access-date=2024-07-15|website=pOx's Playhouse}}</ref>
* '''NehQuake''' - Custom engine for the ''[[The Seal of Nehahra|Nehara]]'' mod.<ref>{{cite web|url=https://tldp.org/HOWTO/Quake-HOWTO-4.html|title=Mods|website=Linux Quake HOWTO|author=Stevenaaus|date=2010-03-01|access-date=2024-07-15}}</ref>
* '''GLQuake'''
** '''FitzQuake''' (Derivative of [[GLQuake]]) - Seminal port whose [[Simple DirectMedia Layer|SDL]] version was later forked into numerous others.<ref>{{cite web|url=https://slayersclub.bethesda.net/en-US/article/nods-to-mods-interview-rubicon-2-for-quake|title=Nods to Mods Interview: Rubicon 2 for Quake|date=2022-08-18|access-date=2024-07-15|first=Joshua|last=Boyle|website=[[Bethesda Softworks|Slayer's Club]]}}</ref>
*** '''MarkV''' (Derivative of FitzQuake, successor to DirectQ) - Came in both [[GLQuake]] and [[WinQuake]] derived versions.<ref>{{cite web|url=https://www.dsogaming.com/news/quake-xmas-jam-2018-adds-21-new-maps-to-id-softwares-classic-shooter-available-for-download/|title=Quake Xmas Jam 2018 adds 21 new maps to id Software's classic shooter, available for download|date=2018-12-11|access-date=2024-07-15|first=John|last=Papadopoulos|website=DOSGaming}}</ref>
*** '''Quakespasm''' (Derivative of FitzQuake) – Commonly used source port.<ref>{{cite web|url=https://www.rockpapershotgun.com/quake-renaissance-a-short-history-of-25-years-of-quake-modding|title=Quake Renaissance: a short history of 25 years of Quake modding|first=Robert|last=Yang|date=2021-08-23|access-date=2024-07-14|website=[[Rock Paper Shotgun]]}}</ref>
**** '''Quakespasm-Spiked''' (Derivative of Quakespasm) - Limit-removing fork. <ref>{{cite web|url=https://www.gamingonlinux.com/2022/04/block-quake-is-basically-quake-made-into-lego/|title=Block Quake is basically Quake made into LEGO|first=Liam|last=Dawe|date=2022-04-27|access-date=2024-07-14|website=GamingOnLinux}}</ref>
**** '''vkQuake''' – (Derivative of Quakespasm) – Uses [[Vulkan (API)|Vulkan]] API for rendering programmed by id Software employee Axel Gneiting, released under the [[GPLv2]].<ref>{{cite web | url = https://twitter.com/axelgneiting/status/755988244408381443 | title = My Vulkan Quake 1 Port running "In the Shadows" mod. Some stuff still missing. Code is here <nowiki>https://github.com/Novum/vkQuake</nowiki>  | last = Gneiting | first = Axel | date = July 20, 2016 | website = [[Twitter]] |access-date=August 6, 2016}}</ref><ref>{{cite web |url=https://github.com/Novum/vkQuake |title=Vulkan Quake port based on QuakeSpasm |website=github.com/Novum/vkQuake|access-date=August 6, 2016}}</ref>
**** '''Ironwail''' - (Derivative of Quakespasm) – An engine aiming at maximum performance.<ref>{{cite web|url=https://www.insideqc.com/ironwail-a-high-performance-quakespasm-fork/|title=Ironwail, a high-performance QuakeSpasm fork|date=2022-01-30|access-date=2024-07-14|author=Spirit|website=InsideQC}}</ref>
* '''FTEQW''' (Derivative of [[QuakeWorld]]) - A modern client for online multiplayer.<ref>{{cite web|url=https://www.pcgamer.com/this-mod-turns-quake-into-a-top-down-shooter/|title=This mod turns Quake into a top-down shooter|first=Andy|last=Chalk|date=2021-02-17|access-date=2024-07-16|website=[[PC Gamer]]}}</ref><ref name="neogeographica" />
* '''FuhQuake'''
** '''ezQuake''' (Derivative of FuhQuake) - Multiplayer focused port often paired with the nQuake launcher.<ref>{{cite web|url=https://www.pcgamer.com/were-running-a-quake-server-all-weekcome-play-with-us/|title=We're running a Quake server all week—come play with us!|first=Alex|last=Campbell|date=2016-05-20|access-date=2024-07-16|website=[[PC Gamer]]}}</ref><ref>{{cite web|url=https://www.pcgamer.com/were-running-a-quake-multiplayer-server-all-week-for-the-25th-anniversary/|title=We're running a Quake multiplayer server all week for the 25th anniversary|first=Wes|last=Fenlon|date=2021-05-22|access-date=2024-07-16|website=[[PC Gamer]]}}</ref>
** '''JoeQuake''' (Derivative of FuhQuake) -  A port popular with [[speedrunner]]s.<ref>{{cite web|url=https://www.slipseer.com/index.php?threads/quake-engines-source-ports-a-beginners-guide.11/|title=Quake Engines & Source Ports: A Beginners Guide|author=Fairweather|date=2022-02-19|access-date=2024-07-15|website=Slipgate Sightseer}}</ref>