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DOOM

PCShooterFirst-personBring your own

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    Overview

    Led by John Carmack and John Romero, the development team at id Software created a landmark game in 1993 that popularized the first-person shooter genre.

    You're a marine, one of Earth's toughest, hardened in combat and trained for action, and you've been transferred to Mars, home of the Union Aerospace Corporation.

    The military has been using the UAC's remote facilities on Phobos and Deimos to conduct various secret projects, including research on inter-dimensional space travel. So far they have been able to open gateways between Phobos and Deimos, throwing a few gadgets into one and watching them come out the other. Recently, however, the gateways have grown dangerously unstable.

    Then a garbled message arrives from Phobos: something fraggin' evil is coming out of the gateways.

    Controls guide

    In the game

    KeyAction
    Up/DownForward, back
    Left/RightTurn
    Alt+Left/RightStrafe
    Comma/PeriodStrafe without Alt
    ShiftRun
    CtrlFire
    SpaceUse doors, switches and lifts
    1to7Choose a weapon
    ENext weapon
    TabAutomap
    MouseTurn
    ClickFire
    Right-clickHold and move the mouse to strafe; double-click to use

    On the automap

    KeyAction
    -/=Zoom
    0Whole level
    FFollow on or off; arrows pan when off
    GGrid
    M/CMark a spot, clear the marks

    Menus

    KeyAction
    EscMenu
    Up/DownMove
    EnterSelect
    BackspaceBack
    Y/NYes or no

    Cheatsheet

    Weapons

    1
    Fist; Chainsaw once you have it
    2
    Pistol (bullets)
    3
    Shotgun; in Doom II also the Super Shotgun (shells)
    4
    Chaingun (bullets)
    5
    Rocket Launcher (rockets)
    6
    Plasma Rifle (cells), not in the shareware episode
    7
    BFG9000 (cells), not in the shareware episode

    Power-ups

    Invulnerability
    No damage for 30 seconds
    Berserk
    Health to 100%, punches hit ten times harder
    Partial Invisibility
    Monsters aim poorly
    Radiation Shielding Suit
    Walk on nukage and lava unharmed
    Computer Area Map
    Reveals the level on the automap
    Light Amplification Visor
    See in the dark
    Soulsphere / Megasphere
    +100 health / 200 health and armor (Doom II)

    Skill levels

    I'm too young to die
    Easiest, half damage taken
    Hey, not too rough
    Easy
    Hurt me plenty
    Normal
    Ultra-Violence
    Hard
    Nightmare!
    Fast monsters that come back to life; most cheats are off

    Tips

    1. With the Chainsaw in hand, 1 goes to the Chainsaw rather than the fist. If you also have Berserk, press 1 again while holding the Chainsaw to get the fists back.
    2. In Doom II, 3 switches between the Shotgun and the Super Shotgun, so you can keep the double barrel for close work and fall back to the single barrel at range.
    3. Monsters that hit each other start fighting each other. Lead a mixed group so the ones at the back shoot into the ones in front, and let them thin themselves out.
    4. Hold Shift whenever you cross open ground or a damaging floor. Running doubles your walking speed and halves the time you spend exposed.
    5. Health Bonuses and Armor Bonuses keep counting past 100%, up to 200%, so they are worth collecting even when stimpacks and medikits would be wasted.

    Secrets

    God mode

    Type IDDQD during play. Type it again to turn it off. Like most codes it does nothing on Nightmare!.

    Weapons, ammo and keys

    IDKFA gives every weapon, full ammo, armor and all keys. IDFA gives the same without keys.

    No clipping

    In Doom and Ultimate Doom, type IDSPISPOPD to walk through walls. In Doom II, TNT and Plutonia the code is IDCLIP.

    Warp to a level

    Type IDCLEV and two digits: episode and map in Doom (IDCLEV24 for E2M4), or the map number in Doom II and Final Doom (IDCLEV15 for MAP15). It works on every skill, Nightmare! included.

    IDBEHOLD power-ups

    Type IDBEHOLD alone to see the list, then IDBEHOLD plus V (invulnerability), S (berserk), I (invisibility), R (radiation suit), A (computer map) or L (light amplification). The same code again takes it away.

    Chainsaw and a thank-you

    IDCHOPPERS gives you the Chainsaw, with the message "... doesn't suck - GM".

    Automap, music and position

    With the automap open, type IDDT to show the full level, again for all monsters and items, and a third time to switch back. IDMUS plus two digits changes the music, and IDMYPOS shows where you are standing.

    Secret levels

    Hidden exits lead to the secret maps: E1M3 to E1M9, E2M5 to E2M9, E3M6 to E3M9 and E4M2 to E4M9 in Doom. In Doom II, a hidden exit in MAP15 leads to MAP31 Wolfenstein, and one in MAP31 leads on to MAP32 Grosse.

    John Romero's head

    The Icon of Sin at the end of Doom II, MAP30, hides John Romero's head on a stick behind its wall. With IDCLIP you can walk through the wall and see it.