Quake (video game)

Quake is a first-person shooter video game, developed by id Software and published by GT Interactive in 1996. It is the first game in the Quake series. In the game, players must find their way through various maze-like, medieval environments while battling a variety of monsters using a wide array of weapons.

The successor to id Software's Doom series, Quake built upon the technology and gameplay of its predecessor. Unlike the Doom engine before it, the Quake engine offered full real-time 3D rendering and had early support for 3D acceleration through OpenGL. After Doom helped popularize multiplayer deathmatches, Quake added various multiplayer options. Online multiplayer became increasingly common, with the QuakeWorld update and software such as QuakeSpy making the process of finding and playing against others on the Internet easier and more reliable. It features music composed by Trent Reznor and Nine Inch Nails.

Gameplay
In Quake single-player mode, players explore and navigate to the exit of each Gothic and dark level, facing monsters and finding secret areas along the way. Usually there are switches to activate or keys to collect in order to open doors before the exit can be reached. Reaching the exit takes the player to the next level. Before accessing an episode, there is a set of three pathways with easy, medium, and hard skill levels. The fourth skill level, "Nightmare", was "so bad that it was hidden, so people won't wander in by accident"; the player must drop through water before the episode four entrance and go into a secret passage to access it.

Quake single-player campaign is organized into four individual episodes with seven to eight levels in each (including one secret level per episode, one of which is a "low gravity" level that challenges the player's abilities in a different way). As items are collected, they are carried to the next level, each usually more challenging than the last. If the player's character dies, he must restart at the beginning of the level. The game may be saved at any time. Upon completing an episode, the player is returned to the hub "START" level, where another episode can be chosen. Each episode starts the player from scratch, without any previously collected items. Episode one (which formed the shareware or downloadable demo version of Quake) has the most traditional ideology of a boss in the last level. The ultimate objective at the end of each episode is to recover a magic rune. After all of the runes are collected, the floor of the hub level opens up to reveal an entrance to the "END" level which contains the final boss of the game.

Multiplayer
In multiplayer mode, players on several computers connect to a server (which may be a dedicated machine or on one of the player's computers), where they can either play the single-player campaign together in co-op mode, or play against each other in multiplayer. When players die in multiplayer mode, they can immediately respawn, but will lose any items that were collected. Similarly, items that have been picked up previously respawn after some time, and may be picked up again. The most popular multiplayer modes are all forms of deathmatch. Deathmatch modes typically consist of either free-for-all (no organization or teams involved), one-on-one duels, or organized teamplay with two or more players per team (or clan). Teamplay is also frequently played with one or another mod. Monsters are not normally present in teamplay, as they serve no purpose other than to get in the way and reveal the positions of the players.

The gameplay in Quake was considered unique for its time because of the different ways the player can maneuver through the game. For example: bunny hopping or strafe jumping can be used to move faster than normal, while rocket jumping enables the player to reach otherwise-inaccessible areas at the cost of some self-damage. The player can start and stop moving suddenly, jump unnaturally high, and change direction while moving through the air. Many of these non-realistic behaviors contribute to Quake's appeal. Multiplayer Quake was one of the first games singled out as a form of electronic sport. A notable participant was Dennis Fong who won John Carmack's Ferrari 328 at the Microsoft-sponsored Red Annihilation tournament in 1997.

Plot
In the single-player game, the player takes the role of the protagonist known as Ranger (voiced by Trent Reznor) who was sent into a portal in order to stop an enemy code-named "Quake". The government had been experimenting with teleportation technology and developed a working prototype called a "Slipgate"; the mysterious Quake compromised the Slipgate by connecting it with its own teleportation system, using it to send death squads to the "Human" dimension in order to test the martial capabilities of humanity.

The sole surviving protagonist in "Operation Counterstrike" is Ranger, who must advance, starting each of the four episodes from an overrun human military base, before fighting his way into other dimensions, reaching them via the Slipgate or their otherworld equivalent. After passing through the Slipgate, Ranger's main objective is to collect four magic runes from four dimensions of Quake; these are the key to stopping the enemy later discovered as Shub-Niggurath and ending the invasion of Earth.

The single-player campaign consists of 30 separate levels, or "maps", divided into four episodes (with a total of 26 regular maps and four secret ones), as well as a hub level to select a difficulty setting and episode, and the game's final boss level. Each episode represents individual dimensions that the player can access through magical portals (as opposed to the technological Slipgate) that are discovered over the course of the game. The various realms consist of a number of gothic, medieval, and lava-filled caves and dungeons, with a recurring theme of hellish and satanic imagery reminiscent of Doom (such as pentagrams and images of demons on the walls). The latter is inspired by several dark fantasy influences, most notably that of H. P. Lovecraft. Dimensional Shamblers appear as enemies, the "Spawn" enemies are called "Formless Spawn of Tsathoggua" in the manual, the boss of the first episode is named Chthon, and the main villain is named Shub-Niggurath (though actually resembling a Dark Young). Some levels have Lovecraftian names, such as the Vaults of Zin and The Nameless City. In addition, six levels exclusively designed for multiplayer deathmatch are also included. Originally, the game was supposed to include more Lovecraftian bosses, but this concept was scrapped due to time constraints.

Development


A preview included with id's very first release, 1990's Commander Keen, advertised a game entitled The Fight for Justice as a follow-up to the Commander Keen trilogy. It would feature a character named Quake, "the strongest, most dangerous person on the continent", armed with thunderbolts and a "Ring of Regeneration". Conceived as a VGA full-color side-scrolling role-playing game, The Fight for Justice was never released.

Lead designer and director John Romero later conceived of Quake as an action game taking place in a fully 3D world, inspired by Sega AM2's 3D fighting game Virtua Fighter. Quake was also intended to feature Virtua Fighter influenced third-person melee combat. However, id Software considered it to be risky. Because the project was taking too long, the third-person melee was eventually dropped. This led to creative differences between Romero and id Software, and eventually his departure from the company after Quake was released.

Quake was given as a title to the game that id Software was working on shortly after the release of Doom II. The earliest information released described Quake as focusing on a Thor-like character who wields a giant hammer,  and is able to knock away enemies by throwing the hammer (complete with real-time inverse kinematics). Initially, the levels were supposed to be designed in an Aztec style, but the choice was dropped some months into the project. Early screenshots then showed medieval environments and dragons. The plan was for the game to have more RPG-style elements. However, work was very slow on the engine, since John Carmack, the main programmer of Quake, was not only developing a fully 3D engine, but also a TCP/IP networking model (Carmack later said that he should have done two separate projects which developed those things).

Eventually, the whole id Software team began to think that the original concept may not have been as wise a choice as they first believed. Thus, the final game was very stripped down from its original intentions, and instead featured gameplay similar to Doom and its sequel, although the levels and enemies were closer to medieval RPG style rather than science-fiction. In a December 1, 1994 post to an online bulletin board, John Romero wrote, "Okay, people. It seems that everyone is speculating on whether Quake is going to be a slow, RPG-style light-action game. Wrong! What does id do best and dominate at? Can you say "action"? I knew you could. Quake will be constant, hectic action throughout – probably more so than Doom."

Quake was programmed by John Carmack, Michael Abrash, and John Cash. The levels and scenarios were designed by American McGee, Sandy Petersen, John Romero, and Tim Willits, and the graphics were designed by Adrian Carmack, Kevin Cloud and Paul Steed. Cloud created the monster and player graphics using Alias.

The game engine developed for Quake, the Quake engine, popularized several major advances in the first-person shooter genre: polygonal models instead of prerendered sprites; full 3D level design instead of a 2.5D map; prerendered lightmaps; and allowing end users to partially program the game (in this case with QuakeC), which popularized fan-created modifications (mods).

Before the release of the full game or the shareware version of Quake, id Software released QTest on February 24, 1996. It was described as a technology demo and was limited to three multiplayer maps. There was no single-player support and some of the gameplay and graphics were unfinished or different from their final versions. QTest gave gamers their first peek into the filesystem and modifiability of the Quake engine, and many entity mods (that placed monsters in the otherwise empty multiplayer maps) and custom player skins began appearing online before the full game was even released.

Initially, the game was designed so that when the player ran out of ammunition, the player character would hit enemies with a gun-butt. Shortly before release this was replaced with an axe.

Music and sound design
Quake 's music and sound design was done by Trent Reznor and Nine Inch Nails, using ambient soundscapes and synthesized drones to create atmospheric tracks. In an interview, Reznor remarked that the Quake soundtrack "is not music, it's textures and ambiences and whirling machine noises and stuff. We tried to make the most sinister, depressive, scary, frightening kind of thing... It's been fun." The game also has some ammo boxes decorated with the Nine Inch Nails logo.

Ports
The first ports to be completed were the Linux and SPARC Solaris ports by id Software employee Dave D. Taylor in 1996. The first commercially released port was the 1997 port to Mac OS, done by MacSoft. ClickBOOM announced version for Amiga-computers in 1998. Finally in 1999, a retail version of the Linux port was distributed by Macmillan Digital Publishing USA in a bundle with the three add-ons as Quake: The Offering.

Quake was also ported to home console systems. On December 2, 1997, the game was released for the Sega Saturn. Initially GT Interactive was to publish this version itself, but it later cancelled the release and the Saturn rights were picked up by Sega. Sega then took the project away from the original development team, who had been encountering difficulties getting the port to run at a decent frame rate, and assigned it to Lobotomy Software. The Sega Saturn port used Lobotomy Software's own 3D game engine, SlaveDriver (the same game engine that powered the Sega Saturn versions of PowerSlave and Duke Nukem 3D), instead of the original Quake engine. It is the only version of Quake that is rated "T" for Teen instead of "M" for Mature. Quake had also been ported to the Sony PlayStation by Lobotomy Software, but the port was cancelled due to difficulties finding a publisher.

On March 24, 1998, the game was released for the Nintendo 64 by Midway Games. This version was developed by the same programming team that worked on Doom 64, at id Software's request.

Both console ports required compromises because of the limited CPU power and ROM storage space for levels. The Sega Saturn version includes 28 of the 32 single-player levels from the original PC version of the game, though the secret levels, Ziggurat Vertigo (E1M8), The Underearth (E2M7), The Haunted Halls (E3M7), and The Nameless City (E4M8), were removed. Instead, it has four exclusive secret levels: Purgatorium, Hell's Aerie, The Coliseum, and Watery Grave. It also contains an exclusive unlockable, "Dank & Scuz", which is a story set in the Quake milieu and presented in the form of a slide show with voice acting. There are no multiplayer modes in the Sega Saturn version; as a result of this, all of the deathmatch maps from the PC version were removed from the Sega Saturn port. The Nintendo 64 version includes 25 single-player levels from the PC version, though it is missing The Grisly Grotto (E1M4), The Installation (E2M1), The Ebon Fortress (E2M4), The Wind Tunnels (E3M5), The Sewage System (E4M1), and Hell's Atrium (E4M5) levels. It also does not use the hub "START" map where the player chooses a difficulty level and an episode; the difficulty level is chosen from a menu when starting the game, and all of the levels are played in sequential order from The Slipgate Complex (E1M1) to Shub Niggurath's Pit (END). The Nintendo 64 version, while lacking the cooperative multiplayer mode, includes two player deathmatch. All six of the deathmatch maps from the PC version are in the Nintendo 64 port, and an exclusive deathmatch level, The Court of Death, is also included.

Two ports of Quake for the Nintendo DS exist, QuakeDS and CQuake. Both run well, however, multiplayer does not work on QuakeDS. Since the source code for Quake was released, a number of unofficial ports have been made available for PDAs and mobile phones, such as PocketQuake, as well as versions for the Symbian S60 series of mobile phones and Android mobile phones.

In 2005, id Software signed a deal with publisher Pulse Interactive to release a version of Quake for mobile phones. The game was engineered by Californian company Bear Naked Productions. Initially due to be released on only two mobile phones, the Samsung Nexus (for which it was to be an embedded game) and the LG VX360. Quake mobile was reviewed by GameSpot on the Samsung Nexus and they cited its US release as October 2005; they also gave it a Best Mobile Game" in their E3 2005 Editor's Choice Awards. It is unclear as to whether the game actually did ship with the Samsung Nexus. The game is only available for the DELL x50v and x51v both of which are PDAs not mobile phones. Quake Mobile does not feature the Nine Inch Nails soundtrack due to space constraints. Quake Mobile runs the most recent version of GL Quake (Quake v.1.09 GL 1.00) at 800x600 resolution and 25 fps. The most recent version of Quake Mobile is v.1.20 which has stylus support. There was an earlier version v.1.19 which lacked stylus support. The two Quake expansion packs, Scourge of Armagon and Dissolution of Eternity, are also available for Quake Mobile.

A Flash-based version of the game by Michael Rennie runs Quake at full speed in any Flash-enabled web browser. Based on the shareware version of the game, it includes only the first episode and is available for free on the web.

Mods and add-ons
Quake can be heavily modified by altering the graphics, audio, or scripting in QuakeC, and has been the focus of many fan created "mods". The first mods were small gameplay fixes and patches initiated by the community, usually enhancements to weapons or gameplay with new enemies. Later mods were more ambitious and resulted in Quake fans creating versions of the game that were drastically different from id Software's original release.

The first major Quake mod was Team Fortress. This mod consists of Capture the Flag gameplay with a class system for the players. Players choose a class, which creates various restrictions on weapons and armor types available to that player, and also grants special abilities. For example, the bread-and-butter Soldier class has medium armor, medium speed, and a well-rounded selection of weapons and grenades, while the Scout class is lightly armored, very fast, has a scanner that detects nearby enemies, but has very weak offensive weapons. One of the other differences with CTF is the fact that the flag is not returned automatically when a player drops it: running over one's flag in Threewave CTF would return the flag to the base, and in TF the flag remains in the same spot for preconfigured time and it has to be defended on remote locations. This caused a shift in defensive tactics compared to Threewave CTF. Team Fortress maintained its standing as the most-played online Quake modification for many years.

Another popular mod was Threewave Capture the Flag (CTF), primarily authored by Dave 'Zoid' Kirsch. Threewave CTF is a partial conversion consisting of new levels, a new weapon (a grappling hook), power-ups, new textures, and new gameplay rules. Typically, two teams (red and blue) would compete in a game of Capture the flag, though a few maps with up to four teams (red, blue, green, and yellow) were created. Capture the Flag soon became a standard game mode included in most popular multiplayer games released after Quake. Rocket Arena provides the ability for players to face each other in small, open arenas with changes in the gameplay rules so that item collection and detailed level knowledge are no longer factors. A series of short rounds, with the surviving player in each round gaining a point, instead tests the player's aiming and dodging skills and reflexes. Clan Arena is a further modification that provides team play using Rocket Arena rules. One mod category, "bots", was introduced to provide surrogate players in multiplayer mode.

Arcane Dimensions is a notable singleplayer mod. It's a partial conversion with breakable objects and walls, enhanced particle system, numerous visual improvements and new enemies and weapons. The level design is much more complex in terms of geometry and gameplay than in the original game.

There are a large number of custom levels that have been made by users and fans of Quake. , new maps are still being made, over twenty years since the game's release. Custom maps are new maps that are playable by loading them into the original game. Custom levels of various gameplay types have been made, but most are in the single-player and deathmatch genres. More than 1500 single-player and a similar number of deathmatch maps have been made for Quake.

Sales
According to David Kushner in Masters of Doom, id Software released a retail shareware version of Quake before the game's full retail distribution by GT Interactive. These shareware copies could be converted into complete versions through passwords purchased via phone. However, Kushner wrote that "gamers wasted no time hacking the shareware to unlock the full version of the game for free." This problem, combined with the scale of the operation, led id Software to cancel the plan. As a result, the company was left with 150,000 unsold shareware copies in storage. The venture damaged Quake's initial sales and caused its retail push by GT Interactive to miss the holiday shopping season. Following the game's full release, Kushner remarked that its early "sales were good — with 250,000 units shipped — but not a phenomenon like Doom II."

In the United States, Quake placed sixth on PC Data's monthly computer game sales charts for November and December 1996. Its shareware edition was the sixth-best-selling computer game of 1996 overall, while its retail SKU claimed 20th place. It remained in PC Data's monthly top 10 from January to April 1997,   but was absent by May. During its first 12 months, Quake sold 373,000 retail copies and earned $18 million in the United States, according to PC Data. Its final retail sales for 1997 were 273,936 copies, which made it the country's 16th-highest computer game seller for the year.

Sales of Quake reached 550,000 units in the United States alone by December 1999. Worldwide, it sold 1.1 million units by that date.

Critical reviews
Quake was critically acclaimed on the PC. Aggregating review websites GameRankings and Metacritic gave the original PC version 93.22% and 94/100, the Nintendo 64 port 76.14% and 74/100,  and the Sega Saturn version 64.50%. A Next Generation critic lauded the game's realistic 3D physics and genuinely unnerving sound effects. Major Mike of GamePro said Quake had been over-hyped but is excellent nonetheless, particularly its usage of its advanced 3D engine. He also praised the sound effects, atmospheric music, and graphics, though he criticized that the polygons used to construct the enemies are too obvious at close range.

Less than a month after Quake was released (and a month before they actually reviewed the game), Next Generation listed it as number 9 on their "Top 100 Games of All Time", saying that it is similar to Doom but supports a maximum of eight players instead of four. In 1996, Computer Gaming World listed "telefragged" as #1 on its list of "the 15 best ways to die in computer gaming". In 1997, the Game Developers Choice Awards gave Quake three spotlight awards for Best Sound Effects, Best Music or Soundtrack and Best On-Line/Internet Game.

Entertainment Weekly gave the game a B+ and wrote that "an extended bit of subterranean mayhem that offers three major improvements over its immediate predecessor [Doom]."

Speedruns
As an example of the dedication that Quake has inspired in its fan community, a group of expert players recorded speedrun demos (replayable recordings of the player's movement) of Quake levels completed in record time on the "Nightmare" skill level. The footage was edited into a continuous 19 minutes, 49 seconds demo called Quake done Quick and released on June 10, 1997. Owners of Quake could replay this demo in the game engine, watching the run unfold as if they were playing it themselves.

This involved a number of players recording run-throughs of individual levels, using every trick and shortcut they could discover in order to minimize the time it took to complete, usually to a degree that even the original level designers found difficult to comprehend, and in a manner that often bypassed large areas of the level. Stitching a series of the fastest runs together into a coherent whole created a demonstration of the entire game. Recamming is also used with speedruns in order to make the experience more movie-like, with arbitrary control of camera angles, editing, and sound that can be applied with editing software after the runs are first recorded. However, the fastest possible time for a given level will not necessarily result in the fastest time used to contribute to "running" the entire game. One example is acquiring the grenade launcher in an early level, an act that slows down the time for that level over the best possible, but speeds up the overall game time by allowing the runner to bypass a big area in a later level that they could not otherwise do.

A second attempt, Quake done Quicker, reduced the completion time to 16 minutes, 35 seconds (a reduction of 3 minutes, 14 seconds). Quake done Quicker was released on September 13, 1997. One of the levels included was the result of an online competition to see who could get the fastest time. The culmination of this process of improvement was Quake done Quick with a Vengeance. Released three years to the day after Quake done Quicker, this pared down the time taken to complete all four episodes, on Nightmare (hardest) difficulty, to 12 minutes, 23 seconds (a further reduction of 4 minutes, 12 seconds), partly by using techniques that had formerly been shunned in such films as being less aesthetically pleasing. This run was recorded as an in-game demo, but interest was such that an .avi video clip was created to allow those without the game to see the run.

Most full-game speedruns are a collaborative effort by a number of runners (though some have been done by single runners on their own). Although each particular level is credited to one runner, the ideas and techniques used are iterative and collaborative in nature, with each runner picking up tips and ideas from the others, so that speeds keep improving beyond what was thought possible as the runs are further optimized and new tricks or routes are discovered. Further time improvements of the continuous whole game run were achieved into the 21st century. In addition, many thousands of individual level runs are kept at Speed Demos Archive's Quake section, including many on custom maps. Speedrunning is a counterpart to multiplayer modes in making Quake one of the first games promoted as a virtual sport.

Legacy
The source code of the Quake and QuakeWorld engines was licensed under the GPL on December 21, 1999. The id Software maps, objects, textures, sounds, and other creative works remain under their original proprietary license. The shareware distribution of Quake is still freely redistributable and usable with the GPLed engine code. One must purchase a copy of Quake in order to receive the registered version of the game which includes more single-player episodes and the deathmatch maps. Based on the success of the first Quake game, and later published Quake II and Quake III Arena; Quake 4 was released in October 2005, developed by Raven Software using the Doom 3 engine.

Quake was the game primarily responsible for the emergence of the machinima artform of films made in game engines, thanks to edited Quake demos such as Ranger Gone Bad and Blahbalicious, the in-game film The Devil's Covenant, and the in-game-rendered, four-hour epic film The Seal of Nehahra. On June 22, 2006, it had been 10 years since the original uploading of the game to cdrom.com archives. Many Internet forums had topics about it, and it was a front-page story on Slashdot. On October 11, 2006, John Romero released the original map files for all of the levels in Quake under the GPL.

Quake has four sequels: Quake II, Quake III Arena, Quake 4, and Enemy Territory: Quake Wars. In 2002, a version of Quake was produced for mobile phones. A copy of Quake was also released as a compilation in 2001, labeled Ultimate Quake, which included the original Quake, Quake II, and Quake III Arena which was published by Activision. In 2008, Quake was honored at the 59th Annual Technology & Engineering Emmy Awards for advancing the art form of user modifiable games. John Carmack accepted the award. Years after its original release, Quake is still regarded by many critics as one of the greatest and most influential games ever made.

Expansions
There were two official expansion packs released for Quake. The expansion packs pick up where the first game left off, include all of the same weapons, power-ups, monsters, and gothic atmosphere/architecture, and continue/finish the story of the first game and its protagonist. An unofficial third expansion pack, Abyss of Pandemonium, was developed by the Impel Development Team, published by Perfect Publishing, and released on April 14, 1998; an updated version, version 2.0, titled Abyss of Pandemonium – The Final Mission was released as freeware. An authorized expansion pack, Q!ZONE was developed and published by WizardWorks, and released in 1996. In honor of Quake's 20th anniversary, MachineGames, an internal development studio of ZeniMax Media, who are the current owners of the Quake IP, released online a new expansion pack for free, called Episode 5: Dimension of the Past.

Quake Mission Pack No. 1: Scourge of Armagon
Quake Mission Pack No. 1: Scourge of Armagon was the first official mission pack, released on February 28, 1997. Developed by Hipnotic Interactive, it features three episodes divided into seventeen new single-player levels (three of which are secret), a new multiplayer level, a new soundtrack composed by Jeehun Hwang, and gameplay features not originally present in Quake, including rotating structures and breakable walls. Unlike the main Quake game and Mission Pack No. 2, Scourge does away with the episode hub, requiring the three episodes to be played sequentially. The three new enemies include Centroids, large cybernetic scorpions with nailguns; Gremlins, small goblins that can steal weapons and multiply by feeding on enemy corpses; and Spike Mines, floating orbs that detonate when near the player. The three new weapons include the Mjolnir, a large lightning emitting hammer; the Laser Cannon, which shoots bouncing bolts of energy; and the Proximity Mine Launcher, which fires grenades that attach to surfaces and detonate when an opponent comes near. The three new power-ups include the Horn of Conjuring, which summons an enemy to protect the player; the Empathy Shield, which halves the damage taken by the player between the player and the attacking enemy; and the Wetsuit, which renders the player invulnerable to electricity and allows the player to stay underwater for a period of time. The storyline follows Armagon, a general of Quake's forces, planning to invade Earth via a portal known as the 'Rift'. Armagon resembles a giant gremlin with cybernetic legs and a combined rocket launcher/laser cannon for arms.

Scourge of Armagon received favourable reviews. It holds 82.00% from Gamerankings and Tim Soete of gamespot given a score 8.6 out of 10.

Quake Mission Pack No. 2: Dissolution of Eternity
Quake Mission Pack No. 2: Dissolution of Eternity was the second official mission pack, released on March 31, 1997. Developed by Rogue Entertainment, it features two episodes divided into fifteen new single-player levels, a new multiplayer level, a new soundtrack, and several new enemies and bosses. Notably, the pack lacks secret levels. The eight new enemies include Electric Eels, Phantom Swordsmen, Multi-Grenade Ogres (which fire cluster grenades), Hell Spawn, Wraths (floating, robed undead), Guardians (resurrected ancient Egyptian warriors), Mummies, and statues of various enemies that can come to life. The four new types of bosses include Lava Men, Overlords, large Wraths, and a dragon guarding the "temporal energy converter". The two new power-ups include the Anti Grav Belt, which allows the player to jump higher; and the Power Shield, which lowers the damage the player receives. Rather than offering new weapons, the mission pack gives the player four new types of ammo for existing weapons, such as "lava nails" for the Nailgun, cluster grenades for the Grenade Launcher, rockets that split into four in a horizontal line for the Rocket Launcher, and plasma cells for the Thunderbolt, as well as a grappling hook to help with moving around the levels.

Dissolution of Eternity also received favourable reviews. It holds 83.50% from Gamerankings and Tim Soete of Gamespot given a score 7.7 out of 10.

VQuake
In late 1996, id Software released VQuake, a port of the Quake engine to support hardware accelerated rendering on graphics cards using the Rendition Vérité chipset. Aside from the expected benefit of improved performance, VQuake offered numerous visual improvements over the original software-rendered Quake. It boasted full 16-bit color, bilinear filtering (reducing pixelation), improved dynamic lighting, optional anti-aliasing, and improved source code clarity, as the improved performance finally allowed the use of gotos to be abandoned in favor of proper loop constructs. As the name implied, VQuake was a proprietary port specifically for the Vérité; consumer 3D acceleration was in its infancy at the time, and there was no standard 3D API for the consumer market. After completing VQuake, John Carmack vowed to never write a proprietary port again, citing his frustration with Rendition's Speedy3D API.

QuakeWorld
To improve the quality of online play, id Software released QuakeWorld on December 17, 1996, a build of Quake that featured significantly revamped network code including the addition of client-side prediction. The original Quake network code would not show the player the results of his actions until the server sent back a reply acknowledging them. For example, if the player attempted to move forward, his client would send the request to move forward to the server, and the server would determine whether the client was actually able to move forward or if he ran into an obstacle, such as a wall or another player. The server would then respond to the client, and only then would the client display movement to the player. This was fine for play on a LAN, a high bandwidth, very low latency connection, but the latency over a dial-up Internet connection is much larger than on a LAN, and this caused a noticeable delay between when a player tried to act and when that action was visible on the screen. This made gameplay much more difficult, especially since the unpredictable nature of the Internet made the amount of delay vary from moment to moment. Players would experience jerky, laggy motion that sometimes felt like ice skating, where they would slide around with seemingly no ability to stop, due to a build-up of previously-sent movement requests. John Carmack has admitted that this was a serious problem which should have been fixed before release, but it was not caught because he and other developers had high-speed Internet access at home.

With the help of client-side prediction, which allowed players to see their own movement immediately without waiting for a response from the server, QuakeWorld network code allowed players with high-latency connections to control their character's movement almost as precisely as when playing in single-player mode. The Netcode parameters could be adjusted by the user so that QuakeWorld performed well for users with high and low latency.

The trade off to client-side prediction was that sometimes other players or objects would no longer be quite where they had appeared to be, or, in extreme cases, that the player would be pulled back to a previous position when the client received a late reply from the server which overrode movement the client had already previewed; this was known as "warping". As a result, some serious players, particularly in the U.S., still preferred to play online using the original Quake engine (commonly called NetQuake) rather than QuakeWorld. However, the majority of players, especially those on dial-up connections, preferred the newer network model, and QuakeWorld soon became the dominant form of online play. Following the success of QuakeWorld, client-side prediction has become a standard feature of nearly all real-time online games. As with all other Quake upgrades, QuakeWorld was released as a free, unsupported add-on to the game and was updated numerous times through 1998.

GLQuake
On January 22, 1997, id Software released GLQuake. This was designed to use the OpenGL 3D API to access hardware 3D graphics acceleration cards to rasterize the graphics, rather than having the computer's CPU fill in every pixel. In addition to higher framerates for most players, GLQuake provided higher resolution modes and texture filtering. GLQuake also experimented with reflections, transparent water, and even rudimentary shadows. GLQuake came with a driver enabling the subset of OpenGL used by the game to function on the 3dfx Voodoo Graphics card, the only consumer-level card at the time capable of running GLQuake well. Previously, John Carmack had experimented with a version of Quake specifically written for the Rendition Vérité chip used in the Creative Labs PCI 3D Blaster card. This version had met with only limited success, and Carmack decided to write for generic APIs in the future rather than tailoring for specific hardware.

WinQuake
On March 11, 1997, id Software released WinQuake, a version of the non-OpenGL engine designed to run under Microsoft Windows; the original Quake had been written for DOS, allowing for launch from Windows 95, but could not run under Windows NT-based operating systems because it required direct access to hardware. WinQuake instead accessed hardware via Win32-based APIs such as DirectSound, DirectInput, and DirectDraw that were supported on Windows 95, Windows NT 4.0 and later releases. Like GLQuake, WinQuake also allowed higher resolution video modes. This removed the last barrier to widespread popularity of the game. In 1998, LBE Systems and Laser-Tron released Quake: Arcade Tournament Edition in the arcades in limited quantities.

Dimension of the Past
To celebrate Quake's 20th anniversary, a mission pack was developed by MachineGames and released on June 24, 2016. It features 10 new single-player levels and a new multiplayer level, but does not use new gameplay additions from Scourge of Armagon and Dissolution of Eternity. Chronologically, it is set between the main game and the expansions.

Sequels
After the departure of Sandy Petersen, the remaining id employees chose to change the thematic direction substantially for Quake II, making the design more technological and futuristic, rather than maintaining the focus on Lovecraftian fantasy. Quake 4 followed the design themes of Quake II, whereas Quake III Arena mixed these styles; it had a parallel setting that housed several "id all-stars" from various games as playable characters. The mixed settings occurred because Quake II originally began as a separate product line. The id designers fell back on the project's nickname of "Quake II" because the game’s fast-paced, tactile feel felt closer to a Quake game than a new franchise. Since any sequel to the original Quake had already been vetoed, it became a way of continuing the series without continuing the storyline or setting of the first game. In June 2011, John Carmack made an offhand comment that id Software was considering going back to the "...mixed up Cthulhu-ish Quake 1 world and rebooting [in] that direction." There was also another game released called "Quake Live" which is the latest game in the series. At E3 2016,Quake Champions was announced at the Bethesda press conference. The game will be a multiplayer-only shooter in the style of Quake 3 Arena and will be released exclusively for Windows.

Vulkan rendering API
On July 20, 2016, Axel Gneiting, an id Tech employee responsible for implementing the Vulkan rendering path to the id Tech 6 engine used in Doom (2016), released a port called vkQuake under the GPLv2.