All Hell is Breaking Loose

All Hell is Breaking Loose is a Doom II partial conversion created by Joel Huenink that was released July 17, 1996. It contains several gameplay changes through extensive use of DeHackEd, most notably new weapons that behave differently from those found in the original game. Across five new levels, it also includes new monsters, graphics, sound effects, and original music by Mark Klem.

Authors
Levels for the WAD were made by:


 * Joel Huenink
 * Michael Niggel (Risen)
 * Chris Niggel (Kamikazi)

Graphics and sounds for the WAD were made by:


 * Joel Huenink

DeHackEd for the WAD was made by:


 * Michael Gummelt
 * Ted Mielczarek

Music for the WAD was written by:


 * Mark Klem

Development
According to a Doomworld interview with Joel Huenink in 1998, development on All Hell is Breaking Loose began in December 1995. The project's Doom file template text file indicates the build time covered a period of 10 months and required 2-to-6 hour days by Joel. Brothers Chris and Michael Niggel collaborated to re-purpose an in-progress map to use All Hell's custom assets and submitted it to Joel for his approval. Mike Gummelt conceptualized the new weapon and enemy behavior, partially implementing the DeHackEd patch. Ted completed the work for final release.

Levels
All levels by Joel Huenink unless otherwise noted.


 * by Michael Niggel (Risen) and Chris Niggel (Kamikazi)
 * by Michael Niggel (Risen) and Chris Niggel (Kamikazi)
 * by Michael Niggel (Risen) and Chris Niggel (Kamikazi)
 * by Michael Niggel (Risen) and Chris Niggel (Kamikazi)

Soundtrack
All songs composed by Mark Klem.


 * MAP01: "Monster Thrash"
 * MAP02: "Fear Eater"
 * MAP03: "Bassline"
 * MAP04: "Retribute"
 * MAP05: "Glock"


 * Title screen: "Title"
 * Intermission: "Intermission"

Weapons

 * Double Fists (Fist replacement)
 * Double-bladed Chainsaw (uses a new sprite, Chainsaw replacement)
 * Double Pistols (uses new sprites, Pistol replacement)
 * Streetsweeper (uses a new sprite, Shotgun replacement)
 * Super Shotgun
 * M-16 (uses a new sprite, Chaingun replacement)
 * Rocket Launcher (uses a new sprite)
 * Flamethrower (uses a new sprite, Plasma Gun replacement)
 * BFG 10000 (BFG 9000 replacement)

Monsters

 * Two-headed commando
 * Commando-Arachnotron combo
 * Fire Demon
 * Red Space Marine
 * Flaming Baron
 * Apache helicopter
 * Pit Fiend (brown, green and grey)
 * Giant Cyberdemon