Doom 1993 Download PC

Gameplay

Doom is a first-person shooter presented with early 3D graphics. The player controls an unnamed space marine—later termed the Doomguy—through a series of levels set in military bases on the moons of Mars and in Hell. To finish a level, the player must traverse through the area to reach a marked exit room. Levels are grouped together into named episodes, with the final level focusing on a boss fight with a particularly difficult enemy. While the levels are presented in a 3D perspective, the enemies and objects are instead 2D sprites presented from several set viewing angles, a technique sometimes referred to as 2.5D graphics. Levels are often labyrinthine, and a full screen automap is available which shows the areas explored to that point.

While traversing the levels, the player must fight a variety of enemies, including demons and possessed undead humans, while managing supplies of ammunition, health, and armor. Enemies often appear in large groups, and the game features five difficulty levels which increase the quantity and damage done by enemies, with enemies respawning upon death and moving faster than normal on the hardest difficulty setting. The monsters have very simple behavior, consisting of either moving toward their opponent, or attacking by throwing fireballs, biting, and clawing. They will fight each other if one monster is accidentally harmed by another, though most monsters are not harmed by other monsters of the same kind. Levels can also include pits of toxic waste, ceilings that lower and crush anything below them, and locked doors which require a keycard, skull-shaped key device, or a remote switch to be opened. The player can find weapons and ammunition placed in the levels or can collect them from dead enemies; weapons include a pistol, a chainsaw, a plasma rifle, and the BFG 9000, among others. The levels also feature power-ups such as items that give health or armor points, increase the player character's maximum ammunition or health, fill out the automap, give partial invisibility, or allow the player to survive in toxic waste. There are also items which apply time-limited effects such as invulnerability or a berserker status.

In addition to the main single-player game mode, Doom features two multiplayer modes playable over a local network: "cooperative", in which two to four players team up to play through the main game, and "deathmatch", in which two to four players play against each other. Online multiplayer was later made available a year after launch through the DWANGO service. Doom also contains cheat codes that allow the player to be invulnerable, obtain every weapon, be able to instantly kill every monster in a particular level, and several other abilities.

Plot

Doom is divided into three episodes: "Knee-Deep in the Dead", "The Shores of Hell", and "Inferno". A fourth episode, "Thy Flesh Consumed", was added in an expanded version of the game, The Ultimate Doom. The game itself contains very few plot elements, with the minimal story instead given in the instruction manual and short text segues between episodes.

In the year 2019, the player character (an unnamed space marine) has been punitively posted to Mars after assaulting a superior officer, who ordered his unit to fire on civilians. The space marines act as security for the Union Aerospace Corporation's radioactive waste facilities, which are used by the military to perform secret experiments with teleportation by creating gateways between the two moons of Mars, Phobos and Deimos. In 2022, Deimos disappears entirely and "something fraggin' evil" starts pouring out of the teleporter gateways, killing or possessing all personnel. The Martian marine unit is dispatched to investigate, with the player character left to guard the perimeter with only a pistol while the rest of the group proceeds inside the base and is killed.

As the last man standing, the player character fights through the onslaught of demonic enemies to keep them from attacking Earth. In "Knee-Deep in the Dead", he fights through the high-tech military bases, power plants, computer centers and geological anomalies on Phobos. It ends with the player character entering the teleporter leading to Deimos, only to be overwhelmed by monsters. In "The Shores of Hell" he fights through installations on Deimos, similar to those on Phobos, but warped and distorted from the demon invasion and interwoven with beastly architecture. After defeating the titanic Cyberdemon, the marine discovers the vanished moon is floating above Hell. "Inferno" begins after the marine climbs off Deimos to the surface. The marine fights his way through Hell and defeats the Spider Mastermind that planned the invasion. A hidden doorway back to Earth opens for the hero, who has "proven too tough for Hell to contain". However, a burning city and a rabbit's head impaled on a stake (named in The Ultimate Doom as the marine's pet rabbit, Daisy) show that the demons have invaded Earth, setting the stage for Doom II: Hell on Earth. In "Thy Flesh Consumed", the marine fights the demons on Earth through a variety of disconnected high-tech bases and demonic temples, though ultimately the forces of Hell prevail in the invasion of Earth.