Looking for codes, cheats, tips and secrets for Duke Nukem Forever? Look no further! Many unlockables are listed below for your viewing and playing pleasure.
PC Cheats
Completing the game on any difficulty setting will net you additional options for your next playthrough of the game.
Important: Note that cheats denoted with an asterisk will lock Achievements and Ego Points, meaning you won’t earn Achievements if you use those cheats. You’ve been warned.
All of the cheats below are “Single Player Only”.
1. Duke 3D Freeze Ray – Freeze ray will fire bouncing ice projectiles
2. Game Speed – Adjusts game speed
3. Grayscale Mode – Draw the game in grayscale
4. Head Scale – Adjust head size of enemies and NPCs
5. Infinite Ammo – Never run out of ammo *
6. Instagib – Enemies die in 1 shot and always gib *
7. Invincibility – Take no damage from bullets or explosions *
8. Mirror Mode – Draw the game mirrored horizontally *
Xbox 360 and PS3 Cheats
Activate the following cheats in the Extras Menu.
1. Big Head Mode – Use early preorder download code
2. CONCEPT ARTS – Complete the game once in any difficulty
3. DEVELOPMENT TIMELINE – Complete the game once in any difficulty
4. Duke 3D Freeze Ray – Complete the game on normal or higher
5. DUKE SOUND BOARD – Complete the game once in any difficulty
6. Grayscale Mode – Complete the game on normal or higher
7. Head Scale – Complete the game on easy or higher
8. Infinite Ammo – Complete the game on normal or higher
9. Instagib – Complete the game on normal or higher
10. Invincibility – Complete the game on normal or higher
11. Mirror Mode – Complete the game on normal or higher
12. MOVIES – Complete the game once in any difficulty
13. SCREENSHOTS – Complete the game once in any difficulty
14. TRIPTYCH OFFICE PHOTOS – Complete the game once in any difficulty