Quake II#Mission Pack: Ground Zero

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Quake II is a first-person shooter, in which the player shoots enemies from the perspective of the main character. The gameplay is very similar to that featured in Quake, in terms of movement and controls, although the player's movement speed has been slowed down, and the player now has the ability to crouch. The game retains four of the eight weapons from Quake (the Shotgun, Super Shotgun, Grenade Launcher, and Rocket Launcher), although they have been redesigned visually and made to function in slightly different ways. The remainder of Quake{{'}}s eight weapons (the Axe, Nailgun, Super Nailgun, and Thunderbolt) are not present in Quake II. The six new weapons are the Blaster, Machine Gun, Chain Gun, Hyperblaster, Railgun, and BFG10K. The Quad Damage power up from Quake is present in Quake II, and new power-ups include the Ammo Pack, Invulnerability, Bandolier, Enviro-Suit, Rebreather, and Silencer.

The single-player game features a number of changes from Quake. First, the player is given mission-based objectives that correspond to the storyline, including stealing a Tank Commander's head to open a door and calling down an air-strike on a bunker. CGI cutscenes are used to illustrate the player's progress through the main objectives, although they are all essentially the same short piece of video, showing a computerized image of the player character as he moves through game's levels. Another addition is the inclusion of a non-hostile character type: the player character's captured comrades. It is not possible to interact with these characters, however, as they have all been driven insane by their Strogg captors.

The game features much larger levels than Quake, with many more wide open areas. A hub system allows the player to travel back and forth between levels, which is necessary to complete certain objectives. Some of the textures and symbols that appear in the game are similar to some of those found in Quake. Enemies demonstrate visible wounds after they have taken damage.

The multiplayer portion is similar to that of Quake. It can be played as a free-for-all deathmatch game mode, a cooperative version of the single-player game, or as a 1 vs 1 match that is used in official tournaments, like the Cyberathlete Professional League. It can also be played in Capture the Flag mode (CTF). The deathmatch game benefited from the release of eight specifically designed levels that id Software added after the game's initial release. They were introduced to the game via one of the early patches, that were released free of charge. Prior to the release of these maps, players were limited to playing multiplayer games on the single-player levels, which, while functional as multiplayer levels, were not designed with deathmatch gameplay specifically in mind.

As in Quake, it is possible to customize the way in which the player appears to other people in multiplayer games. However, whereas in Quake, the only option was to change the color of the player's uniform unless third party modifications were used, now the game comes with a selection of three different player models: a male marine, a female marine, and a male cyborg; choice of player model also affects the speech effects the player's character will make, such as exhaling in effort while jumping or groaning when injured. Each model can be customized from in the in-game menu via the selection of pre-drawn skins, which differ in many ways; for example, skin color, camouflage style, and application of facepaint.

Quake II takes place in a science fiction environment set against the backdrop of a war between humanity and an alien race known as the Strogg, who capture and convert organic creatures into horrific cyborgs for their war machine. In the single-player game, the player assumes the role of a Marine named Bitterman taking part in "Operation Alien Overlord", a desperate attempt to end the war by launching a counter-offensive on alien home planet of Stroggos. Most of the other soldiers are captured or killed as soon as they approach the planned landing zone. Bitterman survives because another Marine's personal capsule collided with his upon launch, causing him to crash far short of the landing zone. Bitterman fights his way through the highly industrial Strogg city, destroying strategic objectives along the way, and finally kills the Strogg leader, the Makron, in his orbital asteroid base.

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Originally, Quake II was supposed to be a new game and intellectual property; titles like "Strogg", "Lock and Load", and just "Load" were toyed with in the early days of development. But after numerous failed attempts, the team at id decided to stick with Quake II and forgo the Gothic Lovecraftian horror theme from the original in favor of a more sci-fi aesthetic.{{cite journal |last1=Retro Gamer |title=20 Years of Quake |journal=Retro Gamer |date=2016 |issue=154 |pages=18, 27}}

{{blockquote|It was a conscious decision [to change Quake II{{'}}s direction] and controversial inside the company. We weren't happy with the [original] Quake story. [John] Romero was gone, so there was no one left to defend it. Kevin Cloud headed up Quake II and he wanted to make it story-driven.|Todd Hollenshead

}}

The game was developed with a 13-person team.{{cite web |url=https://www.newspapers.com/clip/85882834/ |title=Wizards of Id |newspaper=The Sydney Morning Herald |page=193 |date=December 13, 1997 |accessdate=August 17, 2021 |via=Newspapers.com}} Activision obtained the worldwide distribution rights to the game in May 1997.{{cite web |first=Helen |last=Lee |url=http://headline.gamespot.com/news/97_05/30_acti/index.html |archiveurl=https://web.archive.org/web/19980119053214/http://headline.gamespot.com/news/97_05/30_acti/index.html |title=Activision Gets Quake II |website=GameSpot |archivedate=January 19, 1998 |date=May 30, 1997 |accessdate=July 25, 2022}} Artist and co-owner Adrian Carmack had said that Quake II is his favorite game in the series because "it was different and a cohesive project". This is the last id Software game to feature American McGee as he was fired shortly after its release.{{cite web |first=Micheal |last=Mullen |url=http://headline.gamespot.com/news/98_03/13_mcgee/index.html |archiveurl=https://web.archive.org/web/20001013091835/http://headline.gamespot.com/news/98_03/13_mcgee/index.html |title=Id Designer Let Go |website=GameSpot |archivedate=October 13, 2000 |date=March 13, 1998 |accessdate=October 25, 2022}}{{cite web |url=https://www.scribd.com/doc/14192/John-Carmack-Archive-plan-1998 |title=John Carmack Archive - .plan 1998 |work=scribd.com}}

Unlike Quake, where hardware-accelerated graphics controllers were supported only with later patches, Quake II came with OpenGL support out of the box. Later downloads from id Software added support for AMD's 3DNow! instruction set for improved performance on their K6-2 processors, and Rendition released a native renderer for their V1000 graphics chip. The latest version is 3.21. This update includes numerous bug fixes and new levels designed for multiplayer deathmatch. Version 3.21, available as source code on id Software's FTP server, has no improved functionality over version 3.20 and is simply a slight modification to make compiling for Linux easier.

Quake II uses an improved client–server model introduced in Quake. The game code of Quake II, which defines all the functionality for weapons, entities, and game mechanics, can be changed in any way because id Software published the source code of their own implementation that shipped with the game. Quake II uses the shared library functionality of the operating system to load the game library at run-time—this is how mod authors are able to alter the game and provide different gameplay mechanics, new weapons, and much more. The full source code to Quake II version 3.19 was released under the terms of the GNU GPL-2.0-or-later on December 22, 2001. Version 3.21 followed later. An LCC-friendly version was released on January 1, 2002, by a modder going by the name of Major Bitch.{{cite news |title=Quake II Engine Source for LCC Compiler |url=http://www.users.globalnet.co.uk/~thompp/Quake2/q2tut21.html |first=Pete |last=Thompson |archive-url=https://web.archive.org/web/20121014155217/http://www.users.globalnet.co.uk/~thompp/Quake2/q2tut21.html |archive-date=October 14, 2012 |access-date=November 15, 2017 |url-status=dead}}

Quake II{{'}}s game engine was a popular license and formed the basis for several commercial and free games, such as CodeRED: Alien Arena, War§ow, SiN, Anachronox, Heretic II, Daikatana, Soldier of Fortune, Kingpin: Life of Crime, and UFO: Alien Invasion. Valve's 1998 video game Half-Life used the Quake II engine during early development stages.{{Cite magazine |last=Kelly |first=Andy |date=August 1, 2016 |title=Returning to Quake 2, the legendary shooter that's still fun today |url=https://www.pcgamer.com/returning-to-quake-2-the-legendary-shooter-thats-still-fun-today/ |access-date=August 16, 2020 |magazine=PC Gamer |language=en-US}} However, the final version runs on a heavily modified version of the Quake engine, GoldSrc, with a small amount of the Quake II code.

The soundtrack for Quake II was mainly provided by Sonic Mayhem, with some additional tracks by Bill Brown; the main theme was also composed by Bill Brown and Rob Zombie, and one track by Jer Sypult. The soundtrack for the Nintendo 64 version of the game was composed by Aubrey Hodges, credited as Ken "Razor" Richmond.{{cite web|url=https://gameranx.com/features/id/473388/article/what-is-quake-2-64/|title=What Is Quake 2 64?}}

Since the release of the Quake II engine's source code, several updates from third-party projects to the game engine have been created; the most prominent of these are projects focused on graphical enhancements to the game such as most notable Yamagi Quake II, Quake2maX, EGL, Quake II Evolved, and KMQuake II. The source release also revealed numerous security flaws{{cite web |url=http://www.quakedev.com/forums/index.php?topic=53.0 |title=List of vulnerabilities in Quake II 3.20 (Server) |author=R1CH |archive-url=https://web.archive.org/web/20111003152829/http://www.quakedev.com/forums/index.php?topic=53.0 |archive-date=October 3, 2011 |url-status=dead |access-date=November 15, 2017}} which can result in remote compromise of both the Quake II client and server. As id Software no longer maintains Quake II, most third-party engines include fixes for these bugs. The unofficial patch 3.24 that fixes bugs and adds only meager tweaks is recommended for Quake II purists, as it is not intended to add new features or be an engine mod in its own right.{{cite web |url=http://leray.proboards.com/post/25066/thread |title=Quake2 3.24 Unofficial Patch: Released! |author=knightmare |publisher=The Quake2 Café |date=July 19, 2012 |access-date=November 15, 2017}} The most popular server-side engine modification for multiplayer, R1Q2, is generally recommended as a replacement for the 3.20 release for both clients and servers.

In July 2003, Vertigo Software released a source port of Quake II for the Microsoft .NET platform, using Managed C++, called Quake II .NET.{{cite web |url=http://www.vertigo.com/quake2.htm |title=Vertigo: Quake II .NET |date=July 2003 |publisher=Vertigo Software, Inc. |access-date=November 15, 2017 |archive-url=https://web.archive.org/web/20080217234133/http://www.vertigo.com/quake2.htm |archive-date=February 17, 2008 |url-status=dead}} It became a poster application for the language, showcasing the powerful interoperability between .NET and standard C++ code. It remains one of the top downloads on the Visual C++ website. In May 2004, Bytonic Software released a source port of Quake II (called Jake2) written in Java using JOGL. In 2010 Google ported Jake2 to HTML5, running in Safari and Chrome.{{cite web |url=https://webtoolkit.googleblog.com/2010/04/look-ma-no-plugin.html |title=Look ma, no plugin! |first=Chris |last=Ramsdale |date=April 1, 2010 |publisher=Google Web Toolkit |access-date=November 15, 2017}}

In December 2018, Polish programmer Krzysztof Kondrak released the original Quake II v3.21 source code with Vulkan support added. The port, called vkQuake2, is available under the GPLv2.{{cite web |url=https://www.phoronix.com/scan.php?page=news_item&px=vkQuake2-Quake-2-Vulkan |title=Quake 2 Gets A Vulkan Renderer 21 Years After Release - Phoronix |last=Kondrak |first=Krzysztof |date=December 20, 2018 |website=phoronix.com |access-date=December 20, 2018}}{{cite web |url=https://github.com/kondrak/vkQuake2 |title=vkQuake2 on GitHub |website=GitHub |date=December 5, 2019}}

A new source port of the game, titled Quake II RTX, was announced by Nvidia in March 2019{{cite web |url=https://www.nvidia.com/en-us/geforce/news/quake-ii-rtx-ray-tracing-vulkan-vkray-geforce-rtx/ |title=Quake II RTX: Re-Engineering a Classic with Ray Tracing Effects on Vulkan |publisher=NVIDIA}} and was released on June 6 for Windows and Linux on Steam. This source port requires either a Nvidia RTX or an AMD Radeon RX 6000 series GPU or higher to utilize these cards' hardware ray tracing functionality, but a software fallback is available for graphics cards that are fast enough.{{cite news |last1=Burnes |first1=Andrew |title=Quake II RTX Available On Windows and Linux June 6th |url=https://www.nvidia.com/en-us/geforce/news/quake-ii-rtx-june-6-release-date/ |access-date=June 6, 2019 |publisher=Nvidia |date=May 27, 2019}}{{cite web |last1=McWhertor |first1=Michael |title=Quake 2 with ray-tracing support coming June 6, for free |url=https://www.polygon.com/2019/5/27/18641307/quake-2-rtx-ray-tracing-remaster-download-nvidia |access-date=June 6, 2019 |website=Polygon |date=May 27, 2019}}

The source port, provided free of charge, includes the three levels present in the original Quake II demo,{{efn|Nvidia calls it shareware but Quake II was the first id Software game that did not have a shareware release.}} but can be used to play the full game if its data files are available.{{cite magazine |last1=Lilly |first1=Paul |title=Quake 2 RTX with ray-traced graphics is now available, first 3 levels are free |url=https://www.pcgamer.com/quake-2-rtx-with-ray-traced-graphics-is-now-available-first-3-levels-are-free/ |access-date=June 6, 2019 |magazine=PC Gamer |date=June 6, 2019}} Unlike in most games, ray tracing is used extensively here for lighting, reflections, etc. This is only possible because of the otherwise low hardware demands of Quake II.

Quake II released on December 9, 1997, in the United States and on December 12 in Europe. Despite the title, Quake II is a sequel to the original Quake in name only. The scenario, enemies, and theme are separate and do not fall into the same continuity as Quake. id initially wanted to set it separately from Quake, but for legal reasons (most of their suggested names were already taken), they decided to use the working title.{{cite web|author-last1=Lawrence|author-first1=Nathan|website=IGN|url=https://www.ign.com/articles/2016/01/02/doom-vs-quake-which-has-the-greater-legacy|title=Doom vs. Quake: Which Has the Greater Legacy?}}Quake II was adopted as a name to leverage the popularity of Quake according to Jennell Jaquays.{{cite web |url=http://www.planetquake.com/q2faq/#IV.1 |title=The Unofficial Quake II FAQ |date=October 10, 1998 |archive-url=https://web.archive.org/web/20090412121802/http://q2faq.planetquake.gamespy.com/#IV.1 |archive-date=April 12, 2009 |url-status=dead |access-date=November 15, 2017}} Quake II has been released on Steam, but this version does not include the soundtrack. The game was released on a bonus disc included with Quake 4 Special Edition for the PC, along with both expansion packs. This version lacks the soundtrack. Quake II is available on a bonus disc with the Xbox 360 version of Quake 4. This version is a direct port featuring the original soundtrack and multiplayer maps.

In 2015, Quake II: Quad Damage, a bundle containing the original game with the mission packs has been released at GOG.com, but unlike the previous releases, this one contains a new customizable launcher and the official soundtrack in OGG format which was made possible to play in-game, making it the only digital release at the time to include music.

The game has been included in the following official compilations:

• Quake II: Quad Damage – contains Quake II and all three official expansion packs.{{cite web |url=https://www.mobygames.com/game/quake-ii-quad-damage |title=Quake II: Quad Damage |date=1999 |publisher=MobyGames |access-date=November 15, 2017}}
• Quake II: Colossus – a compilation for Linux that contains Quake II and both mission packs.{{cite web |url=https://www.mobygames.com/game/quake-ii-colossus |title=Quake II: Colossus |date=1999 |publisher=MobyGames |access-date=November 15, 2017}}
• Ultimate Quake – a compilation including the original Quake trilogy.{{cite web |url=https://www.mobygames.com/game/ultimate-quake |title=Ultimate Quake |date=September 25, 2001 |publisher=MobyGames |access-date=November 15, 2017}}

Ports of Quake II were released in 1999 on the Nintendo 64 (ported by Raster Productions) and PlayStation (ported by HammerHead) video game consoles.{{Cite web |author=I. G. N. Staff |date=1999-10-16 |title=Quake II |url=https://www.ign.com/articles/1999/10/16/quake-ii-2 |url-status=live |archive-url=https://web.archive.org/web/20230813151836/https://www.ign.com/articles/1999/10/16/quake-ii-2 |archive-date=August 13, 2023 |access-date=2023-12-16 |website=IGN |language=en}}{{Cite web |author=I. G. N. Staff |date=1999-07-01 |title=Quake II |url=https://www.ign.com/articles/1999/07/01/quake-ii-5 |url-status=live |archive-url=https://web.archive.org/web/20231216104142/https://www.ign.com/articles/1999/07/01/quake-ii-5 |archive-date=December 16, 2023 |access-date=2023-12-16 |website=IGN |language=en}} In both cases, the core gameplay was largely identical; however, changes were made to the game sequence and split-screen multiplayer replaced network or Internet play. A Macintosh port was developed by Logicware and released in July 1999. Quake II: Colossus (Quake II with both official add-ons) was ported to Linux by id Software and published by Macmillan Digital Publishing in 1999.{{Cite web |date=1999-06-17 |title=Macmillan Says 'Let the Linux Games Begin!'; Market Leader in Linux Software & Books Offers 'Quake' & 'Civilization' |url=https://www.thefreelibrary.com/Macmillan+Says+'Let+the+Linux+Games+Begin!'%3B+Market+Leader+in+Linux...-a054913355 |archive-url=https://web.archive.org/web/20160305020245/https://www.thefreelibrary.com/Macmillan+Says+'Let+the+Linux+Games+Begin!'%3B+Market+Leader+in+Linux...-a054913355 |archive-date=2016-03-05 |access-date=2018-03-03 |website=Business Wire}} Be Inc. ported Quake II: Colossus to BeOS to test their OpenGL acceleration in 1999, and provided the game files for free download at a later date—a Windows, Macintosh, or Linux install CD was required to install the game, with the add-ons being optional.

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The PlayStation version contains abridged versions of Units 1, 3, 6, 7, 8, and 10 of the PC version, redesigned to meet the console's technical limitations.{{cite web |url=http://www.ign.com/articles/1998/11/26/exclusive-quake-ii-interview |title=Exclusive Quake II Interview |date=November 25, 1998 |first=Douglass |last=Perry |website=IGN |access-date=November 15, 2017}}{{cite web |url=http://www.ign.com/articles/1998/12/31/the-real-quake-ii-interview |title=The Real Quake II Interview |date=December 30, 1998 |first=Douglass |last=Perry |website=IGN |access-date=November 15, 2017}} For example, many short airlock-like corridors were added to maps to provide loading pauses inside what were contiguous areas in the PC version. In addition, part of the first mission of the N64 port is used as a prologue. Some enemy types were removed and two new enemies was added: the Arachnid, a human-spider cyborg with twin railgun arms, and the Guardian, a bipedal boss enemy. Saving the game is only possible between levels and at mid-level checkpoints where the game loads, while in the PC version the game could be saved and loaded at any time. The game supports the PlayStation Mouse peripheral to provide a greater parity with the PC version's gameplay. The music used in this port is a combination of the Quake II original music score and tracks from the PC version's mission packs, while the opening and closing cut-scenes are taken from the Ground Zero expansion pack.

The PlayStation version uses an engine developed by HammerHead for their future PlayStation projects and runs at a 512x240 resolution at 30 frames per second. The developer was keen to retain a visual parity with the PC version and avoid tricks such as the use of environmental fog. Colored lights for levels and enemies, and yellow highlights for gunfire and explosions, are carried across from the PC version, with the addition of lens flare effects located around the light sources on the original lightmaps. There is no skybox; instead, a flat Gouraud-textured purple "sky" is drawn across the ceiling. The game uses particles to render blood, debris, and rail gun beams analogously to the PC version.

There is a split-screen multiplayer mode for two to four players (a four player game is possible using the PlayStation's Multi-tap). The only available player avatar is a modified version of the male player avatar from the PC version, the most noticeable difference being the addition of a helmet. Players can only customize the color of their avatar's armor and change their name. The twelve multiplayer levels featured are unique to the PlayStation version, with none of the PC multiplayer maps being carried over.

The Nintendo 64 version has different single-player levels and multiplayer maps, and features multiplayer support for up to four players. This version has new lighting effects, mostly seen in gunfire, and uses the Expansion Pak for extra graphical detail. This port features a new soundtrack, consisting mostly of dark ambient pieces, composed by Aubrey Hodges.{{Cite web |title=Quake - Nintendo 64: Official Soundtrack, by Aubrey Hodges |url=https://aubreyhodges.bandcamp.com/album/quake-nintendo-64-official-soundtrack |url-status=live |archive-url=https://web.archive.org/web/20230605112245/https://aubreyhodges.bandcamp.com/album/quake-nintendo-64-official-soundtrack |archive-date=June 5, 2023 |access-date=2023-12-16 |website=Aubrey Hodges |language=en}}

A port of Quake II was included with Quake 4 for the Xbox 360 on a bonus disc. This is a direct port of the original game, with some graphical improvements.{{cite web |url=http://www.eurogamer.net/articles/digitalfoundry-2015-quake-2-on-xbox-360-the-first-console-hd-remaster |title=Quake 2 on Xbox 360: the first console HD remaster |first=John |last=Linneman |website=Eurogamer |date=February 15, 2015 |access-date=November 15, 2017}} The port allows for System Link play for up to sixteen players, split-screen for four players, and cooperative play in single-player for up to sixteen players or four players with split-screen alone.

An "enhanced" version of Quake II developed by Nightdive Studios was released for Nintendo Switch, PlayStation 4, PlayStation 5, Microsoft Windows, Xbox One, Xbox Series X/S on August 10, 2023, during QuakeCon. It collects the full single-player campaign alongside all previously released official expansions and multiplayer maps. It is the first console version of the game to be presented in native widescreen at a resolution of 1080p and 60 frames-per-second performance on the eighth-generation platforms, while the PlayStation 5, Xbox One X, Xbox Series X/S and Windows releases are able to support native 4K (3840x2160) resolution and up to 120FPS with compatible displays. The Xbox Series X/S and Windows releases also support 8-player splitscreen. This version of the game also introduces a new single-player expansion, Call of the Machine, which was designed exclusively for the enhanced version by Bethesda studio MachineGames, comprising 28 additional levels and a new Deathmatch map. The Nintendo 64 version of Quake II is also bundled with the enhanced version as a bonus.{{Cite web |last=Skrebels |first=Joe |date=2023-08-10 |title=Quake II Reintroduces the Legendary FPS to Xbox |url=https://news.xbox.com/en-us/2023/08/10/quake-ii-enhanced-xbox/ |access-date=2023-08-10 |website=Xbox Wire |language=en-US}}{{Cite web |title=Quake II returns! Play the enhanced release TODAY |url=https://bethesda.net/en/article/6ucW3H8R8mYDWrn3ndqgYX/quake-ii-enhanced-release |access-date=2023-08-10 |website=bethesda.net |language=en}}

Quake II Mission Pack: The Reckoning is the first expansion pack, released on May 27, 1998.{{Cite web |url=https://www.mobygames.com/game/windows/quake-ii-mission-pack-the-reckoning |title=Quake II Mission Pack: The Reckoning for Windows (1998)}} It was developed by Xatrix Entertainment.{{cite web |first=Marc |last=Saltzman |url=http://www.gamecenter.com/News/Item/0,3,1414,00.html |archive-url=https://web.archive.org/web/19980121102005/http://www.gamecenter.com/News/Item/0,3,1414,00.html |title=Quake II Mission Pack Revealed |website=gamecenter.com |archive-date=January 21, 1998 |date=January 13, 1998 |access-date=July 13, 2019}} First announced in January 1998,{{cite web |first=Micheal |last=Mullen |url=http://headline.gamespot.com/news/98_01/12_acti/index.html |archiveurl=https://web.archive.org/web/20000831130139/http://headline.gamespot.com/news/98_01/12_acti/index.html |title=Activision Announces Quake II Mission Pack |website=GameSpot |archivedate=August 31, 2000 |date=January 12, 1998 |accessdate=August 30, 2022}} it features eighteen single player levels, six deathmatch levels, three weapons (the Ion Ripper, Phalanx Particle Cannon, and Trap), a power-up, two enemies, seven modified versions of existing enemies, and five music tracks. The storyline follows Joker, a member of an elite squad of marines on a mission to infiltrate a Strogg base on one of Stroggos' moons and destroy the Strogg fleet, which is preparing to attack. Joker crash lands in the swamps outside of the compound where his squad is waiting. He travels through the swamps and bypasses the compounds outer defenses and enters through the main gate, finding his squad just in time to watch them get executed by Strogg forces. Next, Joker escapes on his own to the fuel refinery where he helps the Air Force destroy all fuel production, then infiltrates the Strogg spaceport, boards a cargo ship and reaches the Moon Base, destroying it and the Strogg fleet. The section of the game that takes place on the Moon Base has low gravity, something that was previously used on one secret level of the original Quake.

The Reckoning received mixed reviews. It holds 69.50% from Gamerankings and GameSpot given a score of 7.4/10.{{Cite web |url=https://www.gamerankings.com/pc/55402-quake-ii-mission-pack-the-reckoning/index.html |title=Video Game Reviews, Articles, Trailers and more - Metacritic}}{{Cite web |url=https://www.gamespot.com/quake-ii-mission-pack-the-reckoning/ |title=Quake II Mission Pack: The Reckoning}}

Quake II Mission Pack: Ground Zero is the second expansion pack, released on September 11, 1998.{{Cite web |url=https://www.mobygames.com/game/windows/quake-ii-mission-pack-ground-zero |title=Quake II Mission Pack: Ground Zero for Windows (1998)}} It was developed by Rogue Entertainment.{{cite web |url=https://www.gamespot.com/quake-ii-mission-pack-ground-zero/ |title=Quake II Mission Pack: Ground Zero |website=GameSpot |access-date=November 15, 2017}} It comes with fourteen single-player levels, ten multiplayer maps, five additional music tracks, five enemies, seven power-ups, and five weapons. In the expansion's story the Gravity Well has trapped the Earth Fleet in orbit above the planet Stroggos. One of the marines who managed to land, Stepchild, must now make his way to the Gravity Well to destroy it and free the fleet above and disable the entire defenses of the planet.

Ground Zero received average to mixed reviews. It holds 65.40% from Gamerankings.{{Cite web |url=https://www.gamerankings.com/pc/198380-quake-ii-mission-pack-ground-zero/index.html |title=Video Game Reviews, Articles, Trailers and more - Metacritic}}{{Cite web |url=https://www.gamespot.com/quake-ii-mission-pack-ground-zero/ |title=Quake II Mission Pack: Ground Zero}} Patrick Baggatta of IGN gave the expansion 7.5/10, describing it as similar to the original, but noting occasionally confusing map design.{{cite web |url=http://www.ign.com/articles/1998/10/20/quake-ii-ground-zero |title=Quake II: Ground Zero |first=Patrick |last=Baggatta |date=October 19, 1998 |work=IGN |access-date=November 15, 2017}} Elliott Chin of GameSpot gave the game 7.9/10, citing it as decent for an expansion and praising the monsters and enhanced AI.{{cite web |url=https://www.gamespot.com/reviews/quake-ii-mission-pack-ground-zero-review/1900-2532533/ |title=Quake II Mission Pack: Ground Zero Review |first=Elliott |last=Chin |date=September 30, 1998 |work=GameSpot |access-date=November 15, 2017}} Johnny B. of Game Revolution rated the expansion D+, citing bad level design and few additions to the original game, and noted the multiplayer power-up gameplay as the only fun feature.{{cite web |url=http://www.gamerevolution.com/review/32792-its-christmas-at-ground-zero-review |title="It's Christmas at Ground Zero" Review |author=Johnny B. |date=September 1, 1998 |work=Game Revolution |access-date=November 15, 2017}}

Quake II Netpack I: Extremities contains, among other features, 11 game mods and 12 deathmatch maps.{{cite web |url=https://www.quakewiki.net/archives/modcentral/extremtiesfaq.htm |title=The Unofficial Quake II: Extremities FAQ |date=December 13, 1998 |author=Sluggo |website=quakewiki.net |access-date=November 15, 2017 |archiveurl=https://web.archive.org/web/20171115223501/https://www.quakewiki.net/archives/modcentral/extremtiesfaq.htm |archivedate=November 15, 2017}}

The fourth mission pack, Call of the Machine, was released as part of the enhanced version of Quake II released on August 10, 2023.

Two unofficial expansions were released on CDs in 1998: Zaero, developed by Team Evolve and published by Macmillan Digital Publishing,{{Cite web |title=Zaero for Quake II (1998) |url=https://www.mobygames.com/game/6392/zaero-for-quake-ii/ |access-date=2024-08-01 |website=MobyGames |language=en}} and Juggernaut: The New Story, developed by Canopy Games and published by HeadGames Publishing.{{Cite web |title=Juggernaut: The New Story For Quake II (1998) |url=https://www.mobygames.com/game/6390/juggernaut-the-new-story-for-quake-ii/ |access-date=2024-08-01 |website=MobyGames |language=en}}

As with the original Quake, Quake II was designed to allow players to easily create custom content. A large number of mods, maps, graphics such as player models and skins, and sound effects were created and distributed to others free of charge via the Internet.{{cite magazine |first=Christian |last=Svensson |title=Joyriding: Extending Quake 2 Gameplay |magazine=Next Generation |issue=39 |publisher=Imagine Media |date=March 1998 |page=28}} Popular websites such as PlanetQuake and Telefragged allowed players to gain access to custom content. Another improvement over Quake was that it was easier to select custom player models, skins, and sound effects because they could be selected from an in-game menu.{{citation needed|date=July 2020}}

Mods for the game include Action Quake from 1999. PC Gaming World{{'}}s Simon Quirk wrote of the game, "The Action Quake team fancied a multiplayer-only total conversion of Quake II where strategy, accuracy, and cool-looking fights would dominate."{{cite web |archive-url=https://web.archive.org/web/20001005023526/http://www.gamespot.co.uk/pc.gamespot/action/actqu_uk/review.html |url=http://www.gamespot.co.uk/pc.gamespot/action/actqu_uk/review.html |title=Action Quake Review |author=Quirk, Simon |date=August 19, 1999 |work=PC Gaming World |archive-date=October 5, 2000 |url-status=dead}}

{{Video game reviews

| GR = 87% (PC){{cite web |url=https://www.gamerankings.com/pc/89267-quake-ii/index.html |title=Quake II for PC |website=GameRankings |publisher=CBS Interactive |access-date=November 15, 2017}}
81% (N64){{cite web |url=https://www.gamerankings.com/n64/198378-quake-ii/index.html |title=Quake II for Nintendo 64 |website=GameRankings |publisher=CBS Interactive |access-date=November 15, 2017}}
80% (PS){{cite web |url=https://www.gamerankings.com/ps/198379-quake-ii/index.html |title=Quake II for PlayStation |website=GameRankings |publisher=CBS Interactive |access-date=November 15, 2017}}

| Allgame = {{Rating|4|5}} (PC){{cite web |url=http://www.allgame.com/game.php?id=6662&tab=review |title=Quake II Review |first=Michael L. |last=House |website=AllGame |archive-url=https://web.archive.org/web/20141211031500/http://www.allgame.com/game.php?id=6662&tab=review |archive-date=December 11, 2014}}

| CVG = {{rating|3|5}} (PC){{cite magazine |last=Lomas |first=Ev |date=August 1998 |title=Quake 2: The Reckoning |magazine=Computer and Video Games |issue=201 |page=63}}

| GameFan = 248/300 (N64)GameFan, volume 7, issue 7 (July 1999), pages 12 & 66–67

| GSpot = 9.0/10 (PC){{cite web |url=https://www.gamespot.com/reviews/quake-ii-review/1900-2532651/ |last=Broady |first=Vince |title=Quake II Review |website=GameSpot |access-date=May 19, 2017}}

| NGen = {{rating|4|5}} (PC, N64)

| rev1 = Macworld

| rev1Score = {{Rating|4|5}}{{cite web |archive-url=https://web.archive.org/web/20010611071257/http://www.macworld.com/1999/12/features/gamehalloffame.html |url=http://www.macworld.com/1999/12/features/gamehalloffame.html |title=1999 Macworld Game Hall Of Fame |author=Breen, Christopher |work=Macworld |date=December 1999 |archive-date=June 11, 2001 |url-status=dead}}

| rev2 = The Sydney Morning Herald

| rev2Score= 4.5/5{{cite web |first=Stuart |last=Clarke |url=http://www.smh.com.au/icon/9910/23/games2.html |archiveurl=https://web.archive.org/web/20001202100900/http://www.smh.com.au/icon/9910/23/games2.html |title=Quake makes the break |website=Smh.com.au |archivedate=December 2, 2000 |date=October 23, 1999 |accessdate=March 27, 2022}}

|PCPP=94%{{Cite journal |last=Sharpe |first=Peter |date=February 1998 |title=Quake II |url=https://archive.org/details/PCPowerplay-021-1998-02 |journal=PC PowerPlay |issue=21 |pages=56–59}}

}}

Quake II received very positive reviews across all platforms.

Next Generation reviewed the PC version of the game and stated that "all in all, id should be commended for the advancement of its technology and improvement in its single-player level design, but it's going to be up to mod designers to provide the necessary additions to the multiplayer game in order to make it stand out from Quake."{{cite magazine |title=Finals |magazine=Next Generation |issue=39 |publisher=Imagine Media |date=March 1998 |page=118}} GamePro said the game "lives up to its impossibly high hype." Praising its interconnected levels, new weapons, enemy design, soundtrack, and the ability to play as a female character in multiplayer mode (which they called "an overdue nod to the growing number of QuakeGrrls"), they gave it a perfect 5.0 out of 5 in all four categories (graphics, sound, control, and funfactor).{{cite magazine |author=Dan Elektro |title=PC GamePro Review: Quake II |magazine=GamePro |issue=114 |publisher=IDG |date=March 1998 |page=68}}

On aggregating review website GameRankings, the PC version held 87%, the Nintendo 64 version 81%, and the PlayStation version 80%. AllGame editor Michael L. House stated, "the beauty of Quake II is not in the single-player game, it's in the multi-player feature." GameSpot editor Vince Broady described Quake II as "the only first-person shooter to render the original Quake entirely obsolete."

Daniel Erickson reviewed the N64 version of the game for Next Generation, and stated that "a good first-person shooter with a great multiplayer mode; GoldenEye is no longer the only game in town."{{cite magazine |last=Erickson |first=Daniel |title=Finals |magazine=Next Generation |volume=2 |issue=2 |publisher=Imagine Media |date=October 1999 |pages=108–109}}

At the Academy of Interactive Arts & Sciences' inaugural Interactive Achievement Awards, Quake II was awarded "PC Action Game of the Year"; it also received nominations for "Computer Entertainment Title of the Year" and "Interactive Title of the Year".{{cite web |title=The Award - Updates |url=http://www.interactive.org/html/award/awardupdate.htm |website=Interactive.org |publisher=Academy of Interactive Arts & Sciences |access-date=April 8, 2023 |archive-url=https://web.archive.org/web/19980615090128fw_/http://www.interactive.org/html/award/awardupdate.htm |archive-date=June 15, 1998 |url-status=dead}}{{cite web |title=The Award - Winners |url=http://www.interactive.org/html/award/awardwin98.htm |website=Academy of Interactive Arts & Sciences |access-date=April 8, 2023 |archive-url=https://web.archive.org/web/19980615090115/http://www.interactive.org/html/award/awardwin98.htm |archive-date=June 15, 1998 |url-status=dead}} Quake II won Macworld{{'}}s 1999 "Best Shoot-'Em-Up" award, and the magazine's Christopher Breen wrote: "In either single-player or multiplayer mode, for careening-through-corridor-carnage satisfaction, Quake II is a must-have." It also won Computer Gaming World{{'}}s 1997 "Action Game of the Year" award. The editors wrote that "for pure adrenaline-pumping, visceral, instantly gratifying action, Quake II is the hands-down winner. No game gave us the rush that Quake II did".{{cite magazine |title=CGW Presents The Best & Worst of 1997 |magazine=Computer Gaming World |date=March 1998 |pages=74–77, 80, 84, 88, 89 |issue=164}}

In 1998, PC Gamer declared it the 3rd-best computer game ever released, and the editors called it "id's gun-happy masterpiece is the most sensational and subtle shooter ever, and one of the best games of any type ever created."{{cite journal |title=The 50 Best Games Ever |date=October 1998 |volume=5 |number=10 |journal=PC Gamer US |pages=86, 87, 89, 90, 92, 98, 101, 102, 109, 110, 113, 114, 117, 118, 125, 126, 129, 130}}

In 1999, Next Generation listed Quake 2 as number 5 on their "Top 50 Games of All Time", commenting that, "Quake 2 is the standard for multiplayer shooting, and we've yet to see a "Quake killer" that can keep us from returning to multiplayer Quake for longer than a month or so."{{cite magazine |title=Top 50 Games of All Time |magazine=Next Generation |issue=50 |publisher=Imagine Media |date=February 1999 |page=81}}

Quake II entered PC Data's monthly computer game sales rankings at #2 for December 1997, behind Riven.{{cite web |archive-url=https://web.archive.org/web/20050502205940/http://www.cdmag.com/articles/009/198/top_20_december.html |url=http://www.cdmag.com:80/articles/009/198/top_20_december.html |title=December's hottest games |author=Ocampo, Jason |work=Computer Games Strategy Plus |date=January 20, 1998 |archive-date=May 2, 2005 |url-status=dead}} The game's sales in the United States alone reached 240,913 copies by the end of 1997,{{cite journal |author=Staff |date=April 1998 |volume=5 |issue=4 |title=The Best-Selling Games of 1997 |journal=PC Gamer US |page=44}} after its release on December 9.{{cite web|url=https://www.gamepressure.com/editorials/the-year-of-legends-10-best-games-released-in-1997/quake-2/zc63c|title=

Quake 2. 10 iconic games from 1997, the year of legens}} According to PC Data, it was the country's 22nd-best-selling computer game of 1997. The following year, Quake II secured fifth place on PC Data's charts for January and February 1998,{{cite magazine |author=Staff |title=READ.ME; PC Data Best-Sellers |magazine=Computer Gaming World |date=May 1998 |issue=166 |page=35}}{{cite web |archive-url=https://web.archive.org/web/20050406150037/http://www.cdmag.com/articles/011/084/pcdata_march.html |url=http://www.cdmag.com:80/articles/011/084/pcdata_march.html |title=Do the PC Data figures prove lower is better? |date=April 21, 1998 |author=Ocampo, Jason |archive-date=April 6, 2005 |work=Computer Games Strategy Plus |url-status=dead}} then dropped to #8 in March and #9 in April.{{cite web |archive-url=https://web.archive.org/web/20050208083659/http://www.cdmag.com/articles/011/163/top_games_for_april.html |url=http://www.cdmag.com:80/articles/011/163/top_games_for_april.html |title=The top selling games of April, according to PC Data |date=May 13, 1998 |author=Ocampo, Jason |archive-date=February 8, 2005 |work=Computer Games Strategy Plus |url-status=dead}} It remained in PC Data's top 20 for another two months,{{cite web |archive-url=https://web.archive.org/web/20050502205001/http://www.cdmag.com/articles/013/083/pc_data_june.html |url=http://www.cdmag.com:80/articles/013/083/pc_data_june.html |title=StarCraft scores a hat trick with its third month at No. 1 |author=Ocampo, Jason |date=July 21, 1998 |archive-date=May 2, 2005 |work=Computer Games Strategy Plus |url-status=dead}} before exiting in July 1998.{{cite web |archive-url=https://web.archive.org/web/20050406150058/http://www.cdmag.com/articles/013/172/pc_data_july.html |url=http://www.cdmag.com:80/articles/013/172/pc_data_july.html |title=SWAT 2 debuts at No. 5 |date=August 18, 1998 |archive-date=April 6, 2005 |work=Computer Games Strategy Plus |author=Ocampo, Jason |url-status=dead}} Quake II surpassed 850,000 units shipped to retailers by April 1998,{{cite web |first=Harley |last=Jebens |url=http://headline.gamespot.com/news/98_04/15_quake/index.html |archiveurl=https://web.archive.org/web/20001010162113/http://headline.gamespot.com/news/98_04/15_quake/index.html |title=Official Word on Quake III |website=GameSpot |archivedate=October 10, 2000 |date=April 15, 1998 |accessdate=November 6, 2022}} and 900,000 by June.{{cite web |archive-url=https://web.archive.org/web/20050515014420/http://www.cdmag.com/articles/012/168/quake_2_for_playstation.html |url=http://www.cdmag.com:80/articles/012/168/quake_2_for_playstation.html |title=Activision notes more than 900,000 copies of PC version have shipped |date=June 26, 1998 |work=Computer Games Strategy Plus |archive-date=May 15, 2005 |url-status=dead |author=Ocampo, Jason}}

According to PC Data, Quake II was the United States' 14th-best-selling computer game during the January–November 1998 period.{{cite web |archive-url=https://web.archive.org/web/20000901031920/http://pc.ign.com/news/6269.html |url=http://pc.ign.com:80/news/6269.html |title=Best Selling Games of 1998 |date=January 4, 1999 |work=IGN |author=IGN Staff |archive-date=September 1, 2000 |url-status=dead |access-date=May 13, 2020}} It ultimately secured 15th place for the full year, with sales of 279,536 copies and revenues of $12.6 million.{{cite journal |author=Staff |date=April 1999 |volume=6 |issue=4 |title=The Numbers Game |journal=PC Gamer US |page=50}} GameDaily reported in January 1999 that Quake II{{'}}s sales in the United States had reached 550,000 units;{{cite web |archive-url=https://web.archive.org/web/20010425030744/http://www.gamedaily.com/features/ionstorm/index.html |url=http://www.gamedaily.com:80/features/ionstorm/index.html |title=GameDAILY Interviews ION Storm's John Romero |date=January 1999 |author=Staff |work=GameDaily |archive-date=April 25, 2001 |url-status=dead |access-date=May 13, 2020}} this number rose to 610,000 units by December of that year.{{cite web |author=Ajami, Amer |archive-url=https://web.archive.org/web/20000304053210/http://headline.gamespot.com/news/99_12/13_pc_quake/index.html |url=http://headline.gamespot.com:80/news/99_12/13_pc_quake/index.html |title=Quake III Sales Through the Roof |date=December 13, 1999 |archive-date=March 4, 2000 |work=GameSpot |url-status=dead}} Worldwide, Quake II sold over 1 million copies by 2002.{{cite web |archive-url=https://web.archive.org/web/20021211125214/http://www.idsoftware.com/business/home/history/c-index.php |url=http://www.idsoftware.com:80/business/home/history/c-index.php |title=id Software Background |publisher=id Software |archive-date=December 11, 2002 |url-status=dead}}

{{Notelist}}

{{Reflist}}

• {{Webarchive

| url=https://web.archive.org/web/20110824141015/http://www.idsoftware.com/games/quake/quake2/

| date=August 24, 2011

| title=Quake II on idsoftware.com}}

• {{Github|id-Software/Quake-2|Source code for Quake II, version 3.19}}
• [https://www.mobygames.com/game/quake-ii Quake II] at MobyGames
• [https://www.nvidia.com/en-us/geforce/campaigns/quake-II-rtx/ Official website of Quake II RTX]

{{Quake series}}

{{Hyperion Entertainment}}

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