Quake II is a 1997 first-person shooter video game developed by id Software and published by Activision. It is the second installment of the Quake series, following Quake. The game's storyline is continued in its expansions, including one tying in Quake II and the first game, and Quake 4.
A source port is a software project based on the source code of a game engine that allows the game to be played on operating systems or computing platforms with which the game was not originally compatible.
id Tech 3, popularly known as the Quake III Arena engine, is a game engine developed by id Software for their video game Quake III Arena. It has been adopted by numerous games. During its time, it competed with the Unreal Engine; both engines were widely licensed.
The Quake II engine is a game engine developed by id Software for use in their 1997 first-person shooter Quake II. It is the successor to the Quake engine. Since its release, the Quake II engine has been licensed for use in several other games.
Linux Game Publishing was a software company based in Nottingham in England. It ported, published and sold video games running on Linux operating systems. As well as porting games, LGP also sponsored the development of Grapple, a free software network library for games. As well as acting as a Linux game porter in of themselves, they also functioned as a publisher for other Linux game developers and porters. The company was dissolved on 3 May 2011.
An open-source video game, or simply an open-source game, is a video game whose source code is open-source. They are often freely distributable and sometimes cross-platform compatible.
Linux-based operating systems can be used for playing video games. Because many games are not natively supported for the Linux kernel, various software has been made to run Windows games, such as Wine, Cedega, and Proton, and managers such as Lutris and PlayOnLinux. The Linux gaming community has a presence on the internet with users who attempt to run games that are not officially supported on Linux.
Ryan C. Gordon is a computer programmer and former Loki Software employee responsible for icculus.org, which hosts many Loki Software projects as well as others. Gordon's site hosts projects with the code from such commercial games as Duke Nukem 3D, Shadow Warrior, Quake III Arena and other free and open source projects for multiple platforms.
id Tech is a series of separate game engines designed and developed by id Software. Prior to the presentation of the id Tech 5-based game Rage in 2011, the engines lacked official designation and as such were simply referred to as the Doom and Quake engines, from the name of the main game series the engines had been developed for. "id Tech" has been released as free software under the GNU General Public License. id Tech versions 0 to 3 were released under GPL-2.0-or-later. id Tech versions 3.5 to 4.5 were released under GPL-3.0-or-later. id Tech 5 to 7 are proprietary, with id Tech 7 currently being the latest utilized engine.
Companies whose business centers on the development of open-source software employ a variety of business models to solve the challenge of how to make money providing software that is by definition licensed free of charge. Each of these business strategies rests on the premise that users of open-source technologies are willing to purchase additional software features under proprietary licenses, or purchase other services or elements of value that complement the open-source software that is core to the business. This additional value can be, but not limited to, enterprise-grade features and up-time guarantees to satisfy business or compliance requirements, performance and efficiency gains by features not yet available in the open source version, legal protection, or professional support/training/consulting that are typical of proprietary software applications.
Phoronix Test Suite (PTS) is a free and open-source benchmark software for Linux and other operating systems. The Phoronix Test Suite, developed by Michael Larabel and Matthew Tippett, has been endorsed by sites such as Linux.com, LinuxPlanet, and Softpedia.
Xonotic is a free and open-source first-person shooter video game. It was developed as a fork of Nexuiz, following controversy surrounding the game's development. The game runs on a heavily modified version of the Quake engine known as the DarkPlaces engine. Its gameplay is inspired by Unreal Tournament and Quake, but with various unique elements.
Nexuiz is a first-person shooter video game developed by IllFonic and published by THQ for Microsoft Windows and Xbox 360. It used CryEngine 3 and it is based on the original free game Nexuiz. The servers for the Xbox 360 and PC versions were taken offline in February 2013 due to the closure of THQ.
Alientrap Games Inc. is an independent video game developer led by Lee Vermeulen and Jesse McGibney. It has released the games Nexuiz, Capsized, Apotheon, Cryptark, and Wytchwood.
mpv is free and open-source media player software based on MPlayer, mplayer2 and FFmpeg. It runs on several operating systems, including Unix-like operating systems and Microsoft Windows, along with having an Android port called mpv-android. It is cross-platform, running on ARM, PowerPC, x86/IA-32, x86-64, and MIPS architecture.
Unvanquished is a free and open-source video game. It is a multiplayer first-person shooter and real-time strategy game where Humans and Aliens fight for domination.
OpenMW is a free and open-source game engine recreation that reimplements the one powering Bethesda Softworks' 2002 open-world role-playing game The Elder Scrolls III: Morrowind.
IllFonic, LLC is an American video game developer based in Golden, Colorado, with further offices in Tacoma, Washington, and Austin, Texas. The studio was founded by Charles Brungardt, Kedhrin Gonzales and Raphael Saadiq in 2007. IllFonic is best known for developing asymmetric multiplayer games like Friday the 13th: The Game, Predator: Hunting Grounds and Ghostbusters: Spirits Unleashed.
Based on Id Software's open stance towards game modifications, their Quake series became a popular subject for player mods beginning with Quake in 1996. Spurred by user-created hacked content on their previous games and the company's desire to encourage the hacker ethic, Id included dedicated modification tools into Quake, including the QuakeC programming language and a level editor. As a game that popularized online first-person shooter multiplayer, early games were team- and strategy-based and led to prominent mods like Team Fortress, whose developers were later hired by Valve to create a dedicated version for the company. Id's openness and modding tools led to a "Quake movie" community, which altered gameplay data to add camera angles in post-production, a practice that became known as machinima.
Red Eclipse is an open-source first-person shooter that is forked from Cube 2: Sauerbraten. Like the original Cube 2, it features multiplayer gameplay as well as in-game level editing, but with improved graphics and a focus on parkour movement. The game is free and open-source software, released under the zlib license, and developed by an open community of contributors. Its content is free, and released under a CC BY-SA license.
