Box art - Duke Nukem Forever

Duke Nukem Forever PC Cheats

The Doctor Who Cloned Me Unlockable - Steam Achievements

Another Piece of Cake - Beat the DLC campaign on Easy Difficulty

Bloody Red Rover - Kill 30 enemies with the moon rover

Bubble Buster - Kill 10 expanded enemies with melee attacks

Come Get a Little More - Beat the DLC campaign on Hard Difficulty

Damn, I'm REALLY Good - Beat the DLC campaign on Expert Difficulty

Heart to Heart - Finish Doctor Proton

Hedonist, not Misogynist - Discover and reject the video game that lets you slap women

I Am All That Is Man - Again! - Discover all Ego cap rewards in the DLC campaign

Let's Rock Out - Beat the DLC campaign on Normal Difficulty

Passive Aggressive - Let 20 enemies die by someone else's hand

Scientits - Earn a 1,000,000 pinball score on the Scientits pinball machine

Threesome - Kill 3 enemies within 3 seconds with the Impregnader

Unlock Extra Options for Next Playthrough

By completing the game on any difficulty, you will get to unlock extra options for your next playthough! (The options labeled "CHEAT" will lock achievements and Ego points.)

Unlockable How to Unlock
Duke 3D Freeze Ray Freeze ray will fire bouncing ice projectiles (SP only).
Game Speed Adjust game speed (SP only).
Grayscale Mode Draw the game in grayscale (SP only).
Head Scale Adjust head size of enemies and NPCs (SP only).
Infinite Ammo Never run out of ammo (SP only). CHEAT.
Instagib Enemies die in 1 shot and always gib (SP only). CHEAT.
Invincibility Take no damage from bullets or explosions (SP only). CHEAT.
Mirror Mode Draw the game mirrored horizontally (SP only).

Clothing Unlocks

These are clothing items unlocked through multi-player weapon-specific challenges to use in the changing room to customize your Duke for MP.

Unlockable How to Unlock
Backwards Baseball Cap Get 250 kills with the Shotgun (Burger Face III)
Baseball Cap Get 75 kills with pipe bombs (Splatter king III)
Brain Sucker Get 250 kills with the Enforcer (Laser Seeking Missiles III)
Canadian Flag Logo Get 75 kills with the Garter Pistol (Tiny But Deadly III)
Cheese Hat Get 250 kills with the Ripper (Swiss Cheese III)
Detonator Logo Get 250 kills with the Rocket Launcher (Boom Goes the Weasel III)
Hoplite Helmet Get 75 melee kills (Punchy McPuncher III)
I Shot Stupid Logo Get 250 kills with the Railgun (Right In the Eye III)
Jester Hat Get 75 kills with trip mines (Watch your step III)
Military Hat Get 250 kills with the Pistol (Size Doesn't Matter III)
Retro Duke Logo Get 250 kills with the Devestator (Meat Grinder III)
Ski Goggles Execute a frozen player 75 times (Ice to See You III)
Tie-Dye Shirt Get 250 kills with the AT laser (Medium Rare III)
Uncle Sam Hat Stomp on 75 enemies (Pee Wee Vermin III)
Wolf Logo Get 75 kills with Steroids (Roid Rage III)
WTF Logo Get 75 kills with exploding barrels (Smile You Son of a Bitch III)

Steam Achievements

Achievement Description
A Good Dam Fight Defeat the Battlelord on the Hoover Dam
Air-Duke Win air hockey with a score of 7-0 in the strip club
Annihilation Kill 100 aliens
Balls of Steel Earn a 1,000,000 pinball score in SP
Baron von Nukem Shoot down 20 alien fighters
Beating the One-Eyed Worm Defeat the Energy Leech
Big Guns, Big Ships Blow up 5 enemy gunships or dropships
Bucket Head Find all 3 helmets in the SP campaign
Call Waiting Listen to all phone messages
Come Get Some Complete the SP campaign on Hard Difficulty
Companion Barrel Unlock the secret closet at the end of the Forkstop
Damn, I'm Good Complete the SP campaign on Insane Difficulty
Dead Useful Kill 10 aliens with environmental explosives
Drawrings Doodle something on the whiteboard in SP
Duke Angry, Duke Smash! Kill 15 aliens with melee attacks while on steroids
Extermination Kill 50 aliens
Flagon of Chuckles Drink a beer in SP
Fork the Pork Kill 6 aliens with the forklift
Freeze Well! Kill 15 frozen aliens
Full Body Tourettes Get knocked down 10 times
Gunslinger Carry the gold pistol through the whole SP campaign
He's Got a Hologram! Use a Holoduke in SP
Hippy-Stomper Foot stomp 12 aliens
I Am All That Is Man Discover all ego cap rewards
I Need a Date Look at every page of a calendar in SP
I Need a Towel Get hit by 10 Pregnator bombs
Judge, Jury, Executioner Execute 20 aliens
Juiced Take steroids in SP
Let's Rock Complete the SP campaign on Normal Difficulty
Lots of Whacking Win a game of Alien Abortion in the strip club
Natural Disaster 3x Kill 3 aliens at once
Nobody Likes a Whiner Knock out the talent at the talk show
Noms Eat 10 pieces of food during the SP campaign
Not Bad for a Human Defeat the Alien Queen
Nuclear Devastation Kill 250 aliens
Octacide Defeat the Octaking
On the Noggin' Kill 30 aliens with headshots
One-Eyed Freak Defeat the Cycloid
Party Animal Drink all of the beers in the strip club
Pescaphobe Kill all of the catfish in the underwater level
Piece of Cake Complete the SP campaign on Easy Difficulty
Pit Champion Defeat the Battlelord in Las Vegas
Road Rage Kill 15 aliens with the monster truck
Special Thanks Watch the credits all the way through
Sticky Bomb Like You! Put a Trip Mine on a live alien
Substance Abuser Drink beer while on steroids or vice-versa in SP
Sunday, Black Sunday Shoot down the blimp above the stadium
Tosser... in the Literal Sense Kill 10 aliens with tossed objects
Trapper Kill 10 aliens with trip mines
Turd Burglar Find and steal a piece of poo