Duke Nukem Forever – Door Codes and Cheats

All codes for doors (including DLC) and cheats.

Door Codes

  • Duke Nukem’s titty City, Strip Club – 4768
  • Rude Awkening, Doctor Who Cloned Me (DLC) – 1503


Beat the game on any difficulty and you can activate these cheats in the ‘Extras’ menu.

  • Duke 3D Freeze Ray – Freeze ray will fire bouncing ice projectiles.
  • Game Speed – Adjust game speed.
  • Grayscale Mode – Draw the game in grayscale.
  • Head Scale – Adjust head size of enemies and NPCs.
  • Infinite Ammo – Obviously…
  • Instagib – Enemies die in one shot and always gib.
  • Invincibility – God Mode!
  • Mirror Mode – Draw the game mirrored horizontally.

Note: This will disable achievements and it’s only for single player!

Volodymyr Azimoff
About Volodymyr Azimoff 953 Articles
I turned my love for games from a hobby into a job back in 2005, since then working on various gaming / entertainment websites. But in 2016 I finally created my first website about video games – Gameplay Tips. And exactly 4 years later, Game Cheat Codes was created – my second website dedicated to legal game cheats. My experience with games started back in 1994 with the Metal Mutant game on ZX Spectrum computer. And since then, I’ve been playing on anything from consoles, to mobile devices.

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