Cheats - Duke Nukem 3D

The list of all Duke Nukem 3D cheat codes.

Introduction

This guide is inspired by the official list of cheat codes, available at:
http://web.archive.org/web/20141012204122/http://www.3drealms.com/cheat/duke3d.html

I've created this guide to make it easy to find cheat codes from within the Steam Community overlay (Shift+Tab screen). Although it is mostly the same as the official list, I've added and corrected some bits (marked in italic).

To use a cheat code, just type it while in-game. Some cheat codes can be disabled by typing them again. Cheats are only active during the current play session, quitting and restarting the game will clear all cheats.

Using a cheat code unlocks the "Shame" achievement, but only if you are using the public beta version of Duke Nukem 3D.

There is also an official walkthrough (listing all secrets) available at:
http://web.archive.org/web/20141011005019/http://www.3drealms.com/duke3d/walkthrough/

Useful Cheats (these 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.
DNINVENTORY - Gives all inventory items and armor. (Not listed in the official guide.)
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) (0 means no monsters, 1 is a hidden very-easy mode, 2 is Piece of Cake, 3 is Let's Rock, 4 is Come Get Some, 5 is Damn I'm Good; values 6-9 behave just like 5, but don't disable cheats)
DNUNLOCK - Opens all doors and unlocks all locked doors.
DNMONSTERS - Turns off (or on) the monsters in the game. (They disappear as soon as they get active.)
DNCLIP - Walk Through Walls (Tip: open the map to better see where you are.)

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 we 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 the use key.
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!"

Video: How to enter a cheat code

[Denilson Sá]

That keyboard is just a visual overlay I used together with OBS while recording that video. (See the YouTube video description for details on that.)

I've never tried typing cheats using the Steam virtual keyboard. If that doesn't work, try setting up virtual actions in the Controller Settings. Or just plug a hardware keyboard.

[Rage's Asylum 187]

How do i bring that keyboard up it doesnt do it when i push steam n x together ?

[Ruffus Jubei]

Cheats help with achievements

[Blitz]

Do cheats disable achievements ?

[Akiem1959]

Great - thx (I used them years before in the orig HL1 ^^

[NemesisLeon44]

Before modern warfare 2 and modern warfare 3 money deaths there was dncashman.

[Encoded Cookies]

Cheats are for pussys is what Duke would say :P

[biggulps123]

Do cheats disable achievements ?

[Princess Panada]

What code do you have to put in to activate cheats the video moves to fast

[Sexy_Dr_Zaius]

@denilson, Yes, I am. That makes a lot of sense. I am useing a JAS-QWERTY keyboard.
I will pick up a US-QWERTY and try it out. thanks for the suggestion.