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Welcome to
The Duke Nukem 3D Informational Suite
by Ryan Lennox

Version 7.3 - Last Updated: March 25th, 2015

This is my guide pertaining to Duke Nukem 3D map editing. It can serve either as a reference for the experienced user, or as a tutorial for people who are new to the program. I've tried to keep it as informative as possible, while still retaining simplicity for newcomers. Some of the effects described in this guide are not compatible with Duke Nukem v1.3d (nor is the included TUTORIAL.MAP). If you don't own Duke Nukem 3D: Atomic Edition, you should probably get yourself a copy.

On with it, then. If you consider yourself an expert in the field, you'll probably just want to browse through the information. If you're new and interested in learning how to build levels, start with The Basics.

The Basics
Advanced FX
Game Secrets

Contacting the Author

I've been around the net under the alias "Nukey", but the proper name is Ryan Lennox. Anyway, send feedback. If you have any questions, comments, or notice any errors, please e-mail me at [].


  • 3D Realms for the game, and Ken Silverman for the Build engine and Polymost renderer.
  • Jonathon Fowler for porting Build, Matt Saettler for EDuke, Richard "TerminX" Gobeille and all contributors to EDuke32/Mapster32.
  • Kim Robinson for the guide's improved stylistic design, and for hosting all of my Duke projects at DNR.
  • The administrators of Duke4 for alternative hosting of the guide after the fluctuations and instabilities of DNR.
  • The classic FAQ writers: Steffen Itterheim, Brett Gmoser, Jonah Bishop, and Klaus Breuer.
  • The Commander for inspiring me to put up the online version of this guide.
  • Gambini for informing me that Two-Way Trains do not necessarily have to be placed between the Locators.
  • Devastator for bringing to my attention that it is possible to activate Doortile textures by kicking them.
  • Forge for noticing that Reactor sprites without a Hi-Tag affect every MasterSwitch in a map (except the ones with a time-delay value).
  • Fox for informing me that any Switch with a Lo-Tag of 65535 will end the level like a Nuke Button.
  • My brother Brody for all of his interesting Duke3D discoveries and ideas.
  • The Duke3D community for maintaining their interest in this game for almost 20 years!

Legal Details

The Duke Nukem 3D Informational Suite is Copyright ©2003 by Ryan Lennox. All rights reserved. All revisions, updates, or modifications to this guide are to be done only by the author. You are allowed to distribute the packaged version of this guide through any electronic medium provided that:


All of the files are by Ryan Lennox, except any information specifically credited otherwise.
[dnr.jpg] and [style.css] are by Kim Robinson, and [duke4.png] is by RedSplat.

Duke Nukem 3D was created by 3D Realms, and Duke Nukem is was a registered trademark of Apogee Software, Ltd. Duke Nukem is now the intellectual property of Gearbox Software, LLC. All other trademarks mentioned herein are acknowledged as such. 3D Realms does not support this guide. I will not be held responsible if something bad happens to you, your computer, or your computer files upon using this guide. I hope you have fun with this stuff.

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