Vi/Quake

is a 3D first-person shooter released in 1996 by id Software. It's engine was licensed out to many companies, including . is based off of Quake code, with its successors and both retaining some residual Quake code.
The introduced many of the concepts still used in Source today, such as the modern variant of the , the use of a and , , and . Early GoldSrc multiplayer (until 2001) was based off the QuakeWorld multiplayer code. 
The and its successor, the , are now both retroactively referred to as . Both engines have been released as free and open source under the GPLv2 license, allowing for many source ports to be created, which add quality-of-life improvements and are now the preferred way of playing the game, including an official source port released in 2021.
== Bugs/Limitations ==
== Expansions/DLC ==
*Mission Pack No. 1: Scourge of Armagon is a three-episode expansion pack by Hipnotic Interactive (now ).
*Mission Pack No. 2: Dissolution of Eternity is a two-episode expansion pack by Rogue Entertainment. 
*Dimension of the Past is an extra episode created by MachineGames and released for free as a gift for the game's 20th anniversary. This was also included in the Quake Remaster (2021).
== New gameplay elements ==
* Rocket Jump
* Grenade Jump
* Power ups
** Pentagram of Protection
** Ring of Shadows
** Quad Damage
* Unrestricted movement compared to Doom (1996) where at least two players and enemies can be in the same vertical space.
== Gameplay elements ==
* Telefrag
==Compilers==
Quake also uses three compiler tools in compiling a map: , , and . The code for these was used as the basis of the compiling tools used by the compilers used by the Valve engine map compilers, as seen below:
 	Original compilers 	Original compilers	, , and derivatives	compilers	compilers
 	(Source code) 	 	 	 	part of
CSG	part of 	 	 	part of 	part of
 	(Source code) 	 	 	 	part of
 	, no radiosity lighting (Source code)	 	 	 	/
== 2021 Remaster ==
In 2021, Nightdive Studios released an official source port with new remastered lighting and models, using the Kex Engine framework to connect the underlying Quake engine code to modern APIs. The remaster, officially titled "Quake Enhanced", but also colloquially known as "Quake EX" or simply "QEX", runs under on Windows 10 and later, and can also run on Linux and the Steam Deck using . It can also unofficially run on Windows 7-8.1, without multiplayer support, and can be forced to run under by using the .
Although the engine code for the 2021 remaster is closed-source, the updated game code has been released under the GPLv2 on id Software's GitHub. This is the first time the game code for the mission packs has been released under this license, as they were previously only available under a less permissive license.
== Videos ==
=== 2023 ===
Jukspa, E1M1 TAS in 0:17.98 (Quake) beats the E1M1: The Slipgate Complex (with any %) in 0:17.98s (or 0:17.8) but doesn't provide .dem or .qtas files
=== 2022 ===
Muty, Quake Speedrun in 11:42[World Record] beats the game (with an % on easy) with a demo file. Note that the timer jumps around a second after each loading screen so time without loads is lower and around 10:06 according to the video
Matt's Ramblings, Speedrun Science: Beating Quake with code beats the E1M1: The Slipgate Complex (with any %) in 18.667s by using recent differential evolution JADE and custom TASQuake after about 50000000 games but doesn't provide .dem or .qtas files
Matt's Ramblings, Quake path traced in Blender (behind the scenes)
Matt's Ramblings, The code behind Quake's movement tricks explained (bunny-hopping, wall-running, and zig-zagging)
Matt's Ramblings, Strafe-jumping physics explained
== Source ports ==
Since the release of the Quake source code, there are various source ports available:
* Quakespasm - Limit-breaking source port focused on vanilla accuracy. Fork of the long-deprecated FitzQuake. Actively maintained.
** Quakespasm-Spiked (QSS) - Fork of Quakespasm that can run at higher frame rates than 72FPS without breaking physics.
*** vkQuake - Fork of QSS running on Vulkan, with additional features. No longer maintained as of 9 May 2023.
* TASQuake - a port which allows to record inputs for tool assisted speedrunning (TAS) as files.
* FTEQW - Source port focused on standalone game development. Notably includes clean-room implementations of file formats (, , , ). Actively maintained.
==External links==
* id Software's GPL Source Release in 2012 - commits are without proper authors, edit history, maps...
* Quake Map Sources - Original uncompiled source files for all base game maps, including an unreleased map
** Quake Map Sources and Original WADs - Same as above, but with the necessary texture files as well.
* and on the PCGamingWiki
* 
* and