Official Cheat CodesContributed by Xantheous (1300) on Aug 15, 2000.

These official Duke Nukem 3D cheat codes are to be typed in when you are playing the game. These are not command line or menu parameters.

USEFUL CHEATS (That affect gameplay):

DNCORNHOLIO - God Mode (And Unlimited Jetpack).
DNKROZ - Same as Cornholio, just quicker to type.
DNVIEW - Same as the F7 key in the game. 
          (Also prints the message "You're too good to be cheating").
DNHYPER - Puts you in Steroids Mode.
DNITEMS - Gives all inventory items and keys.
DNWEAPONS - Gives all weapons and ammo. *
DNKEYS - Gives all the keys. *
DNSTUFF - Gives all weapons, keys, inventory items.
DNSCOTTYxyz - Level Warp. x is the Episode Number, yz is the level number. 
          (Ex: dnscotty103 for Episode 1 Level 3, or 
          dnscotty211 for Episode 2 Level 11). *
DNSKILLx - Changes the difficulty mode to x. (x can be 0 to 3).
DNUNLOCK - Opens all doors and unlocks all locked doors. *
DNMONSTERS - Turns off (or on) the monsters in the game. 
DNCLIP - Walk Through Walls.

Warning: Being in God Mode can crash the game at certain points, depending on what you are doing. Being in God mode when you are squashed by rotating gears is one example.

Warning 2: The DNCLIP code can be very dangerous. It can cause crashes at any time. If you have a problem, and have used DNCLIP, restart, and do not use DNCLIP, and see if it happens. This was the main reason they didn't have a DNCLIP in v1.0.

CUTE CHEATS (They do something, but don't affect the game):

DNSHOWMAP - Shows the entire map. *
DNCASHMAN - Spews money everywhere when you press space.
DNCOORDS - Shows extremely detailed map coordinate/level information. *
DNDEBUG - Shows some debug information. *
DNRATE - Shows your frame rate onscreen. 
          You must be in full screen mode for this 
          to be anywhere near accurate.
DNBETA - Prints the message "Pirates Suck!".
DNALLEN - Prints the message "Buy Major Stryker".
DNTODD - Prints the message "Register Cosmo Today!". *


DNXXXXXX - Does Nothing.

  • If a cheat code has a star (*) at the end of it, that means it has been added new in v1.3d, or has been changed from v1.1.

  • The DNCOSMO cheat was removed in v1.3d, because the keystroke conflicted with a game function. DNTODD in v1.3d is functionally the same as DNCOSMO.

  • The DNUNLOCK cheat code does *NOT* work in shareware. It only works in the registered version of the game.

(Source: 3D Realms Official Website

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