Doom 3

 Intro

Doom 3 (stylized as D00M³) is a science fiction survival horror first-person shooter video game developed by id Software and published by Activision.
The game is a reboot of the Doom franchise, disregarding the storylines of the previous Doom video games. Doom 3 is set in 2145 on Mars, where a military-industrial conglomerate has set up a scientific research facility to research into fields such as teleportation, biological research and advanced weapons design. However, the teleportation experiments inadvertently open a gateway to Hell, resulting in a catastrophic invasion by demons. The player, an anonymous space marine, must fight through the base and find a way to stop demons from Hell attacking Earth.^[8] Doom 3 features an award-winning game engine, id Tech 4, which has since been licensed out to other developers,^[9] and later released under the GNU General Public License in November 2011.

 Gameplay

Single-player

Doom 3 is a story-driven action game played from a first-person perspective. As with previous Doom games, the main objective is to successfully pass through its levels, defeating a variety of enemy characters intent on killing the player's character. Doom 3 '​s more story-centered approach, however, means that the player often encounters friendly non-player characters, who provide key plot information, objectives and inventory items. The game incorporates ten weapons for the player's use to survive, including conventional firearms and explosives such as a submachine gun, shotgun and grenades, experimental plasma weaponry, and the traditional BFG 9000 and chainsaw weapons of the Doom franchise.^[14] Enemies come in multiple forms and with different abilities and tactics, but fall into two broad categories of either zombies or demons. Zombies are humans possessed by demonic forces, who attack the player's character using their hands and melee weapons or a variety of firearms, while demons are creatures from Hell, most of which attack using claws and spines, or by summoning plasma-based fireballs.^[15] The corpses of demons are reduced to ashes after death, leaving no trace of their body behind.

Multiplayer

Doom 3 was released with a four-player multiplayer element, featuring four game modes. However, the game's community created a modification to boost this to eight or sixteen players.^[11][18][19] The Resurrection of Evil expansion would later officially increase the player limit to eight. The four game modes are all deathmatches. The standard deathmatch game mode involves each player moving around a level, collecting weaponry and killing the other players, with the player with the highest kills when the time runs out winning. A team variation of this involves the same principle. The third game mode is "last man standing", in which each player has a limited amount of respawns, with players losing a life when they are killed. Eventually, all but one player will be eliminated from the game, leaving the survivor as the winner. The final game mode is "tournament", in which two players fight each other while the other players watch as spectators. The victor of the battle remains in the arena, facing each other player one at a time until the winner of previous rounds is defeated. The loser then moves to the spectators and the new winner remains to fight the next player.^[20] The Xbox version of Doom 3 also incorporates an additional two-player co-operative mode for the main single-player game.
 Story
The story of Doom 3 is conveyed through in-game dialogue and cut scenes, as well as e-mails, audio logs and video files found throughout the game. The game opens with UAC board member Elliott Swann and his bodyguard Jack Campbell arriving at Mars City, the main access to the UAC's Mars base, disembarking from an Earth transport, with the player's anonymous marine just behind them. Swann and Campbell, here to investigate multiple incidents, have a heated conference meeting with the man in charge of the Mars laboratories, Dr. Malcolm Betruger^[22] while the marine heads to Master Sergeant Thomas Kelly for orders. Kelly gives the marine instructions to find a scientist from the Delta Labs who has gone missing.^[23] The marine finds the scientist in a nearby decommissioned communications facility, where he is frantically trying to send a warning to the UAC on Earth about Betruger's teleportation experiments.^[24] However, as he tries to explain the situation to the marine, another teleportation test takes place and loses containment, at which point the entire Mars base is swept with an unnatural shockwave. This transforms most of the base's personnel into zombies as the forces of Hell invade through the teleporter's portal.


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