Skip to content
Getting the Red Key (11)
Duke Nukem 3D

Getting the Red Key (11)

Find the Red Key in Duke Nukem 3D by navigating an underwater building, using Yellow Keys, and avoiding Octabrains.

By ···10 min read·Multi-source verified
1 reading this guide  

Find the Red Key in Duke Nukem 3D by navigating an underwater building, using Yellow Keys, and avoiding Octabrains.

Walkthrough
  1. 1
    Use the Yellow Key to enter the building.
  2. 2
    Go down the underwater staircase. A Small Medikit is at the base of the first steps.
  3. 3
    You will encounter another Yellow Key door. Entering this room yields a Shotgun and avoids fighting.
  4. 4
    Continue down the stairway, fighting Octabrains (aquatic enemies) along the way.
  5. 5
    Collect Chaingun Cannon Ammo and Pipebombs at the base of the stairs.
  6. 6
    In the open elevator, find Steroids.
  7. 7
    On a desk, locate two Laser Tripbombs and a Holoduke.
  8. 8
    On a rock shelf, find Shotgun Shells.
  9. 9
    Find a switch on the wall that opens two doors, leading back underwater.
  10. 10
    This switch also opens the large Alley Cat Sign on the building's wall.
  11. 11
    The Red Key is concealed behind this sign.
Tips
  • Using the second Yellow Key door can help you avoid combat.
  • The Holoduke is a decoy that can distract enemies.

100% Human-Written. AI Fact-Checked. Community Verified. Learn how AntMag verifies content