A video game in the style of Doom, displaying the typical perspective of a first-person shooter.

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First-person shooter (FPS) is a video game genre, featuring a first person perspective, with which the player views the action as if through the eyes of the protagonist and in which the primary element is combat based around shooting. The genre can also fall under the wider definition of shooter game, which in turn falls under action game. First person shooters employ both science fiction and real world settings and may feature realistic design or more stylised gameplay. From the genre's inception, advanced 3d graphics elements have challenged hardware development, and from the release of Doom onward, multiplayer gaming has been integral.

Though the first person shooter has since been traced as far back as Maze War (development of which began in 1973 with an unknown completion date) and Spasim (completed in 1974), 1992's Wolfenstein 3D is generally credited with inventing the genre proper and was the basic template on which subsequent games were based. Doom, released the following year, was the progenitor of the genre's wider popularity and was perhaps the most important and influential first person shooter, particularly with regards to multiplayer. Half-Life, released in 1998, had enhanced narrative and puzzle elements, and along with its sequel (Half-Life 2, released in 2004), is one the genre's highest points to date.^[1][2] GoldenEye 007 (1997) was the first landmark FPS for home consoles, with the Halo series becoming the most popular and critically acclaimed console titles. In the new millennium, the first person shooter is one of the most popular and fastest growing video game genres.^[3]

First-person shooters are a type of 3D shooter game,^[4] featuring a first person point of view with which the player sees the action as if through the eyes of the player character. The primary design element is combat, mainly involving firearms.^[5] First person shooter may be considered a distinct genre in itself, or a type of shooter game, in turn a subgenre of the wider action game genre.^[6] Subsequent to the release of the influential Doom, games in this style were commonly termed "Doom clones";^[7][8] in time this term has largely been replaced by "first person shooter".^[8] Wolfenstein 3D, released in 1992, the year before Doom, is generally credited with inventing the genre, but critics have since identified similar though less advanced games completed as far back as 1974.^[5] There is sometimes disagreement regarding exactly what design elements constitute a first person shooter; for example, Deus Ex or Metroid Prime, which borrow extensively from role playing and action adventure games respectively, are variously considered first person shooters or defined differently.^[9] Some commentators may extend the definition to obliquely include combat flight simulators, as opposed to characters on foot.^[5][1]

Like most shooter games, first person shooters involve an avatar, one or more ranged weapons, and a varying number of enemies.^[6] Because they take place in a 3D environment, these games tend to be somewhat more realistic than 2D shooter games, and have more accurate representations of gravity, lighting, sound and collisions.^[4] First person shooters played on personal computers are controlled with a combination of a keyboard and mouse. This system is often considered superior to that found in console games,^[10][11] which frequently use two analog sticks, one used for running and sidestepping, the other for looking and aiming.^[12] It is common to display the character's hands and weaponry in the main view, with a head up display showing health, ammunition and location details. Often, it is possible to overlay a map of the surrounding area.^[13]

First person shooters often focus on action gameplay, with fast-paced and bloody firefights, though some place a greater emphasis on narrative, problem-solving and logic puzzles.^[14] In addition to shooting, melee combat may still be used extensively. In some games, melee weapons are especially powerful, a reward for the risk the player must take in maneuvering his character into close proximity to the enemy.^[15] In other situations, a melee weapon may be less effective, but necessary as a last resort.^[16] Tactical shooters," are more realistic, and require teamwork and strategy to succeed;^[12] the player often commands a squad of characters, which may be controlled by the game or by human teammates.^[17]

These games typically give players a choice of weapons, which have a large impact on how the player will play the game.^[4] Some have highly realistic models of real weapons, including their rate of fire, size of ammunition, and accuracy. However, they may allow players to carry many of them at the same time, with no reduction in speed or mobility. Thus, the standards of realism varies between design elements.^[4] The protagonist can generally be healed and re-armed by means of items such as first aid kits, simply by walking over them.^[18] Some games allow players to accumulate experience points similar to those found in role-playing games, which can unlock new weapons and abilities.^[19]

First person shooters may be structurally comprised of levels, or use the technique of a continuous narrative in which the game never leaves the first person perspective.^[1] Others feature large sandbox environments, which are not divided into levels and can be explore freely.^[20] In first person shooters, protagonists interact with the environment to varying degrees, from basics such as using doors, to problem solving puzzles based on a variety of interactive objects.^[1] The Environment can be damaged, also to varying degrees: one common device is the use of barrels containing explosive material which the player can shoot, destroying them and harming nearby enemies.^[18] Other games feature environments which are extensively destructible, allowing for additional visual effects.^[21] The game world will often make use of science fiction, historic (particularly World War II) or modern military themes, with such antagonists as aliens, monsters, terrorists and soldiers of various types.^[22] Games feature multiple difficulty settings; in harder modes, enemies are tougher, more aggressive and do more damage, and power-ups are limited. In easier modes, the player can succeed through reaction times alone; on more difficult settings, it is necessary to memorize the levels through trial and error.^[23]

First person shooters may feature a multiplayer mode, taking place on specialized levels. Some games are designed specifically for multiplayer gaming, and have very limited single player modes in which the player competes against game-controlled characters termed "bots".^[24] Massively multiplayer online first-person shooters allow thousands of players to compete at once in a persistent world.^[25] Large scale multiplayer games allow multiple squads, with leaders issuing commands and a commander controlling the team's overall strategy.^[24] Multiplayer games have a variety of different styles of match. The classic types are the deathmatch (there is also a team-based version) in which players score points by killing other players' characters, and capture the flag, in which teams attempt to penetrate the opposing base, capture a flag and return it to their own base whilst preventing the other team from doing the same. Other game modes may involve attempting to capture enemy bases or areas of the map, attempting to take hold of an object for as long as possible while evading other players, or deathmatch variations involving limited lives or in which players fight over a particularly potent power-up. These match types may also be customizable, allowing the players to vary weapons, health and power-ups found on the map, as well as victory criteria.^[26] Games may allow players to choose between various classes, each with its own strengths, weaknesses, equipment and roles within a team.^[16]

[[:File:Atari BattleZone Screenshot.png|right|thumb|Before the popularity of first person shooters, the first person viewpoint was used in vehicle simulation games such as Battlezone.]]

The earliest two documented first person shooters were Maze War and Spasim. Maze War was the most similar to modern first person shooters, as it featured characters fighting on foot. Development of the game began some time in 1973 and was likely completed before Spasim, however its exact date of completion is unknown. Spasim had a documented debut at the University of Illinois in 1974. The game was a rudimentary space flight simulator, which featured a first-person perspective.^[5] Spasim led to more detailed combat flight simulators and eventually to a tank simulator, developed for the U.S. army, in the later 1970s. These games were not available to consumersm and it was not until 1980 that a tank game, Battlezone, was released in arcades. A version was released in 1983 for home computers, the first successful mass-market game featuring a first person viewpoint and 3D graphics.^[27]

Id Software released Hovertank 3D in 1991, which pioneered ray casting technology to enable faster gameplay than 1980s vehicle simulators. Later developers added texture mapping with Ultima Underworld: The Stygian Abyss (by Looking Glass Technologies), a role-playing game featuring a first person viewpoint and an advanced graphics engine, released in 1992. During development, this led to Catacomb 3-D which was actually released first, in late 1991, and introduced the display of the protagonist's hand and weapon (magical spells) on the screen.^[27]

[[:File:Wolf3d 3do.png|thumb|Although it was not the earliest shooter game with a first person perspective, Wolfenstein 3D is often credited with establishing the first-person shooter genre.]]

Wolfenstein 3D (created by id Software and released in 1992) was an instant success and is generally credited with inventing the first person shooter genre proper.^[5][1] It built on the ray casting technology pioneered in earlier games to create a revolutionary template for shooter game design, which first person shooters are still based upon today.^[5][1][14] Despite the violent themes, it largely escaped the controversy generated by the later Doom, although it was banned in Germany due to the use of Nazi iconography;^[28] the Nintendo version replaced the enemy attack dogs with giant rats.^[29] Apogee Software, the publisher of Wolfenstein 3D, followed up its success with Blake Stone: Aliens of Gold in 1993. The game was initially well received but sales rapidly declined in the wake of the success of id's Doom, released a week later.^[30]

Doom, released as shareware in 1993,^[14] refined Wolfenstein 3D's template by adding improved textures, variations in height (such as stairs the player's character could climb) and lighting effects such as flickering lights and patches of total darkness, creating a more believable 3D environment than Wolfensteins 3D's repetitive levels.^[31] Doom allowed competitive matches between multiple players, termed "deathmatches", and the game was responsible for the word's subsequent entry into the video gaming lexicon.^[31] It was wildly popular, with its multiplayer features causing problems for companies whose networks were used to play the game.^[31][14] Doom has been considered the most important first person shooter ever made: it was highly influential not only on subsequent shooter games but on video gaming in general,^[31] and has been available on almost every video gaming system since.^[14] Multiplayer gaming, which is now integral to the first person shooter genre, was first achieved successfully on a large scale with Doom.^[31][1] While its combination of gory violence, dark humor and hellish imagery garnered acclaim from critics,^[31][32] these attributes also generated controversy from religious groups, with other commentators labelling the game a "murder simulator."^[33] There was further controversy when it emerged that the perpetrators of the Columbine High School massacre were fans of the game; the families of several victims later unsuccessfully attempted to sue id Software, among numerous other video game companies, claiming they inspired the massacre.^[28]

Star Wars: Dark Forces was released in 1995 after LucasArts decided Star Wars would make appropriate material for a game in the style of Doom; however, Star Wars: Dark Forces added several technical features that Doom lacked, such as the ability to crouch or look up and down.^[14][7][34] Descent, (released by Parallax Software in 1995) a game in which the player pilots a spacecraft around caves and factory ducts, was the first truly three dimensional first person shooter. It abandoned sprites and ray casting and introduced polygons and six degrees of freedom.^[1][14] Apogee's Duke Nukem 3D, released in 1996, was the last successful sprite-based first person shooter, winning acclaim for its humor based around stylised machismo as well as its gameplay; however some found the game's (and later the whole series') treatment of women derogatory and tasteless.^[14][35][28]

Shortly after the release of Duke Nukem 3D, id Software released the much anticipated Quake, which used 3D polygons instead of sprites. Like Doom, Quake was influential and genre-defining, featuring fast paced, gory gameplay. It was centered around online gaming and featured multiple match types still found in first person shooter games today. It was the first game to have a following of clans, attracted increased modification and expanded the market for video card hardware.^[1][14][36]

The first passable console first person shooters were released in 1995, for the Sony Playstation. However, it was not until 1997 that the first landmark console game was released, Rare's GoldenEye 007, based on the James Bond film GoldenEye and released on the Nintendo 64. Highly acclaimed for its atmospheric single-player levels and well designed multiplayer maps, it featured the ability to aim at a precise spot on the screen, a sniper rifle and the ability to perform headshots.^{[1][14][37][38]}

Released in 1998, Tom Clancy's Rainbow Six started a popular trend of tactical first person shooters, though it was not the first of its kind. It featured a team-based, realistic design and themes based around counter-terrorism, requiring missions to be planned before execution and in it, a single hit was enough to kill a character.^[39][17] 1999s well designed Medal of Honor started a long running proliferation of first person shooters set during World War II.^[14]

Valve's Half-Life was released in 1998. Initially met with only mild anticipation, it went on to become an unprecedented commercial success.^[40][14] While previous first person shooters had focused on visceral gameplay with comparatively weak plots, Half-Life had a strong narrative; the game featured no cut scenes but remained in the first person perspective at all times. It featured innovations such as non-enemy characters but did not employ power-ups.^[1] Half-Life was acclaimed for its artificial intelligence, set of weapons and attention to detail and, along with its sequel Half-Life 2 (released in 2004), is considered one of the best games in the genre.^[41]

Starsiege: Tribes, also released in 1998, was a multiplayer online shooter allowing more than 32 players in a single match. It featured team-based gameplay with a variety of specialized roles, and an unusual jet pack feature. The game was highly popular and later imitated by games such as the Battlefield series.^[1][2] Id's Quake III Arena and Epic's Unreal Tournament, both released in 1999, were popular for their frenetic and accessible online multiplayer modes; both featured very limited single player gameplay.^[14] Counter-Strike was also released in 1999, a Half-Life modification with a counter-terrorism theme. The game and later versions (the latest being Counter Strike: Source, released in 2004) went on to become by far the most popular multiplayer first person shooters.^[14] Deus Ex, released by Ion Storm in 2000, featured a levelling system similar to that found in role-playing games; it also had multiple narratives depending on how the player completed missions and won acclaim for its serious, artistic style.^[14]

At the E3 game show in 1999, Bungie unveiled a real-time strategy game called Halo; at the following E3, an overhauled 3rd person shooter version was displayed. Later in 2000 Bungie was bought by Microsoft, and Halo was revamped and released as a first person shooter, one of the launch titles for the Xbox console. It was a runaway critical and commercial success, and is considered a premier console first person shooter. It featured narrative and level design inspired by Half-Life and also received acclaim for its characters, both the protagonist, Master Chief and its alien antagonists. The sequel, Halo 2 (2004), brought the popularity of online-gaming to the console market through the medium of Xbox Live, on which it was the most played game for almost two years.^[14] Metroid Prime, released in 2002 for the Nintendo GameCube, another highly praised console first person shooter, incorporated action adventure elements such as jumping puzzles.^[14]

Battlefield 1942, a World War II shooter released in 2002, featured large scale battles and allowed players to use vehicles such as airplanes and tanks.^[14] Released the following year, Planetside allowed hundreds of players at once to compete in a persistent world, and was promoted as the world's first massively multiplayer online first person shooter.^[25] Doom 3, released in 2004, placed a greater emphasis on horror and frightening the player than previous games in the series and was a critically acclaimed best seller,^[42][43] though some commentators felt it lacked gameplay substance and innovation, putting too much emphasis on impressive graphics.^[9] In 2005, a film based on Doom emulated the viewpoint and action of a first person shooter, but was critically derided as deliberately unintelligent and gratuitously violent.^[44] Bioshock was acclaimed by some commentators as the best game of 2007 for its artistry, narrative and innovation.^[45][46][47] Crysis (2007) and Far Cry 2 (2008) broke new ground in terms of graphics and large, open-ended level design,^[14][48] whereas Call of Duty 4: Modern Warfare (2007), Resistance: Fall of Man (2006) and its sequel Resistance 2 (2008) presented increasingly refined linear levels and narratives.^[49] As of 2006, in terms of revenue for publishers, the first person shooter was one of the biggest and fastest growing video game genres.^[3]

• First-person shooter engine
• List of free first-person shooters