• All codes

    Enter the following codes with the keyboard at any time during play to activate.

    IDFAAll weapons, ammo, 200% armor
    IDKFAAll weapons, ammo, keys, 200% armor
    IDDQDDegreelessness mode ("God mode")
    IDDT (entering first time displays full map, second time displays enemy locations)Display full map (with enemies)
    IDMYPOSDisplay location coordinates
    IDCHOPPERSGet Chainsaw
    IDCLEV## (first # is for Episode number, second # for Map number)Level Select
    IDBEHOLDLLight Amplfication Visor
    IDSPISPOPDNo Clipping
    IDBEHOLDIPartial Invisibility
    IDBEHOLDRRadiation Shielding Suit
    IDMUS## (first # is for Episode number, second # for Map number)Switch Music

    Contributed By: SolidSnake15 and Ryan Harrison.

  • All weapons, full ammo, 200% armor WITHOUT keys:

    To get 200% armor, all weapons, and full ammo without the keys, press IDFA during gameplay.

    Contributed By: peach freak.

  • Full automap with object Indicators

    With the automap displayed, type IDDT twice to have a full map, plus object indicators to see enemies, items, etc.

    IDDT *Twice, with automap displayed*Gives you a full automap, and adds object indicators

    Contributed By: peach freak.


  • Secret Levels

    UnlockableHow to Unlock
    E1M9, Military BaseFind secret exit in E1M3, Toxin Refinery. (The secret exit is located across the pit of slime near the entrance of the level.)
    E2M9, Fortress of MysteryFind the secret exit in E2M5, Command Center.
    E3M9, WarrensFind the secret exit in E3M6, Mt. Erebus.
    E4M9, FearFind the secret exit in E4M2, Perfect Hatred. (The secret exit is north of the Cyberdemon.)

    Contributed By: ND9k.

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You can submit a problem report for any non-working or fake code in the lists above.