Lunatic Fringe is the eleventh level and the second secret level that can be found in the episode Lunar Apocalypse of the game Duke Nukem 3D. The player can get to this level if they find the secret exit in Dark Side.

Summary Edit

Lunatic Fringe is quite a short level that mostly takes place in a large circular area; it appears to be some sort of alien space station or possibly a former EDF space station that was overrun. However for its size, the resistance is quite fearsome as Duke Nukem will have to fight a few battlelord sentries in the central room. There are two main areas in Lunatic Fringe; the outer circle and an inner room; the inner room being the area where the battlelord sentries are; Duke can open up the central area by pushing all the buttons beside the large screens which is quite similar to how the center is opened in Spin Cycle, but unlike Spin Cycle, it's less complex as there aren't as many buttons and this level doesn't finish in the center; it finishes off in a small hallway that Duke gets into by being shrunk after hitting a button in the center. The music is quite creepy too!

Trivia Edit

  • This level is famous for its revolutionary, non-euclidean geometry: the appears to be a simple circle, but player was required to run 720 degrees around it before they can get back to the starting point, which really did show just how revolutionary the Build engine is. Later games have achieved it, but the game engine wasn't designed for it in mind, resulting in minor imperfections.
    • The idea of the '720 degree circle' is probably inspired by Stephen Hawking's view of so-called spin ½ particles, like electrons or quarks, "that do not look the same if one turns them through just one revolution: you have to turn them through two complete revolutions!" [1]
  • The level appears to be named after the Red Rider song which was also called Lunatic Fringe.

Easter EggsEdit

  • Use DNSHOWMAP to enable the whole map. Zoom out using '-' and on the edge of the map you will find 'SUYT'. DNCLIP will allow you to run all the way out to it.


  1. Hawking, A brief history of time, 1988
Duke Nukem 3D
Episodes L.A. Meltdown | Lunar Apocalypse | Shrapnel City
Plutonium PAK: The Birth
Anniversary Edition: Alien World Order
Items Access Card | Holoduke | Jetpack | Night Vision Goggles | Portable Medkit
Protective Boots | Scuba Gear | Steroids
Health: Small Medkit | Large Medkit | Atomic Health | Armor
Scrapped: Space Suit | Shield
Weapons Mighty Foot | Pistol | Shotgun | Chaingun Cannon | RPG | Pipe Bomb | Shrinker
Microwave Expander | Devastator | Laser Tripbomb | Freezethrower | Incinerator
Scrapped: Flamethrower | Laser Chainsaw | Sonic Resonator | Tazer | Plasma Cannon
Enemies Common enemies: Assault Captain | Assault Commander | Enforcer | Assault Trooper | Battlelord Sentry | Octabrain | Pig Cop | Protozoid Slimer | Recon Patrol Vehicle | Sentry Drone | Shark | Turret
Plutonium PAK: Pig Cop Tank | Protector Drone
Anniversary Edition: Firefly Trooper | Cycloid Sentry | Overlord Sentry
Bosses: Battlelord | Overlord | Cycloid Emperor
Plutonium PAK: Alien Queen
Anniversary Edition: Cycloid Incinerator
Scrapped: Organic Turret | Snake Head | Bat | Captain | Drone | Drone 2 | Mandroid
| Trooper | Turret | Alien Queen Sentry
Expansion packs
and add-ons
Duke Assault | Duke Nukem 3D Level Design Handbook (CD levels) | Duke Caribbean: Life's A Beach | Duke: Nuclear Winter | Duke It Out In D.C.
Duke Xtreme | Duke!ZONE | Duke!ZONE 150 | Duke!ZONE II | Plutonium PAK | Duke Nukem's Penthouse Paradise | Unofficial expansion packs
Fan community User maps | Mods & Total Conversions | Level editing (index) | Speedruns
Source ports | High Resolution Pack
Other Difficulty | Hazards | Multiplayer | Cheat codes | Easter eggs
Quotes | Music | Duke Nukem
Build engine | Game bugs | Unused data | LameDuke
Community content is available under CC-BY-SA unless otherwise noted.