Cheats & codes

Duke Nukem 3D Cheat Codes

Grouped by type and platform, each one labelled reported working or tested.

There are 50 cheat codes for Duke Nukem 3D across DOS and PC (Microsoft Windows). Each code below lists the exact button combination or console command, what it does, and whether using it disables achievements.

Verified 21 Oct 2026

Jump to Cheat codes 47 Easter eggs 3

Cheat codes

All Items and Keys

Grants all inventory items and keys, plus maximum armor

Type DNITEMS during gameplay

PC Reported working

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All Items/Keys

Gives all inventory items and all keys

Type during gameplay (no menu needed); type again to switch off

DOS Reported working

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All Keys

Grants every keycard so you can open any locked door

Type DNKEYS during gameplay

PC Reported working

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All Keys Only

Gives all three colored keys

Type during gameplay (no menu needed); type again to switch off

DOS Reported working

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All Weapons and Ammo

Gives all weapons, maximum ammo, and full armor

Type during gameplay (no menu needed); type again to switch off

DOS Reported working

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All Weapons Plus Ammo

Grants every weapon with maximum ammunition

Type DNWEAPONS during gameplay

PC Reported working

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All weapons, ammo and keys

Fills your inventory completely.

Type the letters during gameplay.

PC Reported working

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Apogee Message Easter Egg

Displays the message "Buy Major Stryker" on screen

Type DNALLEN during gameplay

PC Reported working

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Cosmetic message only, no gameplay effect

Beta Message Easter Egg

Displays the in-joke message "Pirates Suck!" on screen

Type DNBETA during gameplay

PC Reported working

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Cosmetic message only, no gameplay effect

Beta Testers Message

Displays 'Pirates Suck!' message on screen

Type during gameplay (no menu needed)

DOS Reported working

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Change Skill Level

Restarts the current level at the chosen difficulty, 1 to 5

Type DNSKILL followed by a number from 1 to 5 during gameplay

PC Reported working

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Restarts the level you are playing

Coordinates Readout

Shows your current X, Y, Z coordinates on screen

Type DNCOORDS during gameplay

PC Reported working

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Cornholio Mode (Deprecated Name)

Older nickname for God Mode (DNKROZ)

Type during gameplay (no menu needed); type again to switch off

DOS Reported working

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Debug Info Overlay

Displays debugging information in the corner of the screen

Type DNDEBUG during gameplay

PC Reported working

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Everything Bundle

Grants all weapons, maximum ammunition, all keys, all items, and full armor

Type DNSTUFF during gameplay

PC Reported working

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Full Ammunition

Tops up ammunition for every weapon to maximum

Type DNAMMO during gameplay

PC Reported working

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Full Inventory

Grants all inventory items and maximum armor

Type DNINVENTORY during gameplay

PC Reported working

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Full Map Reveal

Shows the full map (in overhead automap mode, again with the map key)

Type during gameplay (no menu needed); type again to switch off

DOS Reported working

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Give Armor

Gives full armor

Type during gameplay (no menu needed); type again to switch off

DOS Reported working

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Give Keycards

Gives all three keycards (or unlocks all doors/locks on the level in later releases)

Type during gameplay (no menu needed); type again to switch off

DOS Reported working

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God Mode

God mode — Duke becomes invincible

Type during gameplay (no menu needed); type again to switch off

DOS Reported working

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God Mode (Alternate)

Same as DNKROZ: full invincibility toggle

Type DNCORNHOLIO during gameplay; type it again to switch it off

PC Reported working

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God Mode Toggle

Makes Duke invincible to enemy attacks, explosions, and most hazards

Type DNKROZ during gameplay; type it again to switch it off

PC Reported working

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Inventory Add

Gives one of every inventory item (Portable Medkit, Steroids, Night Vision Goggles, Jet Pack, Holoduke, Protective Boots, Atomic Health, Scuba Gear)

Type during gameplay (no menu needed); type again to switch off

DOS Reported working

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Invincibility Ring (Toggle)

Enables debugging mode in the game; some listings associate it with an invincibility ring display

Type during gameplay (no menu needed); type again to switch off

DOS Reported working

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Jump to a level

Warps to episode and level, for example DNSCOTTY23.

Type the letters during gameplay.

PC Reported working

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Level Skip

Skips to the next level

Type during gameplay (no menu needed); type again to switch off

DOS Reported working

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Level Warp

Warps to the chosen episode and level, for example DNSCOTTY102 for episode 1 level 2

Type DNSCOTTY followed by the episode and level numbers during gameplay

PC Reported working

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Monsters Off/On

Toggles all monsters on or off

Type during gameplay (no menu needed); type again to switch off

DOS Reported working

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Monsters On and Off

Toggles all monsters in the level on and off

Type DNMONSTERS during gameplay

PC Reported working

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No-Clip

Walk through walls; use with caution — clipping out of bounds can cause crashes

Type during gameplay (no menu needed); type again to switch off

DOS Reported working

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Can cause crashes if you clip out of bounds

No-Clip Mode Toggle

Lets you walk through walls and solid objects

Type DNCLIP during gameplay; type it again to switch it off

PC Reported working

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Do not fly through empty white space or you may get stuck in the void

Quote Reference Codes

Reference code list format used in strategy guides; not a separate in-game cheat

Type during gameplay (no menu needed); type again to switch off

DOS Reported working

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Rate of Fire Increase

Increases fire rate when held down (minor versions difference)

Type during gameplay (no menu needed); type again to switch off

DOS Reported working

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Reveal Entire Map

Fills in the whole level map on the map screen

Type DNSHOWMAP during gameplay

PC Reported working

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Show Coordinates

Displays Duke's coordinates, angle and framerate; toggle twice

Type during gameplay (no menu needed); type again to switch off

DOS Reported working

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Show Frame Rate

Displays the current frames-per-second counter on screen

Type DNRATE during gameplay

PC Reported working

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Show Full Map and Items

Shows the entire map with enemies and items marked visible

Type during gameplay (no menu needed); type again to switch off

DOS Reported working

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Show the whole map

Reveals the level on the automap.

Type the letters during gameplay.

PC Reported working

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Spawn Enemies on Death (Debug)

Debug flag that respawns enemies on death (affects autosave/load behavior)

Type during gameplay (no menu needed); type again to switch off

DOS Reported working

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Steroids

Gives steroids and activates the speed-boost effect

Type DNHYPER during gameplay

PC Reported working

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Third-Person Camera

Switches to a chase camera that follows Duke from behind

Type DNVIEW during gameplay

PC Reported working

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Throw Cash

Makes Duke toss money when you press the use or open key

Type DNCASHMAN during gameplay, then press the use key

PC Reported working

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Unlock All Doors

Triggers every locked door and force field in the level

Type DNUNLOCK in front of or near locked doors during gameplay

PC Reported working

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View Mode Toggle

Toggles between behind-view and first-person view

Type during gameplay (no menu needed); type again to switch off

DOS Reported working

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Walk through walls

Disables collision.

Type the letters during gameplay.

PC Reported working

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Weapons Listing (Early Name)

Older naming for the all-weapons cheat (same function as DNSTUFF)

Type during gameplay (no menu needed); type again to switch off

DOS Reported working

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Easter eggs

Hidden Message (Allen)

Displays the hidden message 'Buy Major Stryker' on screen

Type during gameplay (no menu needed)

DOS Reported working

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Hidden Message (Cosmo)

Registers Cosmo (cosmetic screen-state toggle related to the original game joke)

Type during gameplay (no menu needed)

DOS Reported working

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Hidden Message (Todd)

Displays the hidden message 'Register Cosmo Today!' on screen

Type during gameplay (no menu needed)

DOS Reported working

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A code stopped working after a patch? Tell us and we will retest it. Know one we are missing? Submit it here. What the tested badge means, and which codes carry it.

Tools for Duke Nukem 3D cheats

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Answer a few questions and get the specific reason, from our guides.
Search Duke Nukem 3D codes by effect
Type "money" or "god mode" and find the code, typos forgiven.
Test your controller and button sequences
See every button respond, and check a sequence press by press.

Quick answers

About Duke Nukem 3D cheats

How many cheats does Duke Nukem 3D have?

This page lists 50 for Duke Nukem 3D: 47 cheat codes and 3 easter eggs.

How do you enter cheats in Duke Nukem 3D?

On PC: type the letters during gameplay. On DOS: type during gameplay (no menu needed); type again to switch off. A few codes use a different method, shown beside each one.

Do cheats disable achievements in Duke Nukem 3D?

None of the 50 codes here carries an achievement or trophy warning in our notes. That is not a guarantee, so keep a separate save if achievements matter to you.

Which platforms are these Duke Nukem 3D cheats for?

The codes on this page are listed for PC (26 codes) and DOS (24 codes). Button codes differ between systems, so use the ones listed for yours.

Are these Duke Nukem 3D cheats still working?

All 50 are marked "Reported working": each comes from a documented source, and none has been run by us yet. A code we test gets a dated "Tested" badge.