Paul "skillsaw" DeBruyne:
 - Project Lead, Mapping, Graphics
 
Stuart "stewboy" Rynn:
 - Original music, testing

Max "Altazimuth" Waine:
 - Eternity Engine development & support, testing, ENDOOM

Xaser "Xaser Acheron" Acheron:
 - Weapon coding, animations, and general feelgoodiness

Boris "dew" Klimeš:
 - Playtesting

Ola "ukiro" Björling:
 - Textures sourced from OTEX

John "Metlslime" Fitzgibbons:
 - Textures sourced from jf1.wad, jf2.wad, and jf_obtex.wad

Robert "Fat Controller" Cruickshank:
 - Textures sourced fomr jf_obtex.wad

Espi
 - Ground/Grass flats and vine midtextures

Tormentor667
 - Grass midtextures

Additional textures sourced from Quake 2, Redneck Rampage, Duke Nukem 3D, Blood 2: The Chosen, and The Wheel of Time.

Esselfortium:
 - Enemy & special FX (smoke, gore, etc.), from Vaporware

Neoworm:
 - SMG and Fire Axe sprites

joeyTD:
 - Angled pistol sprites

Ravage (rf`):
 - Flamethrower sprites

iamcarrotmaster
 - Cluster bomb sprites

Per Kristian Risvik:
 - Base sprites for smoothed-up weapon animations (shotgun, SSG, rockets)

Scuba Steve:
 - Upgraded smooth weapon animation art (shotgun, SSG)

Minigunner:
 - Smooth rocket explosion sprites

Cory Whittle:
 - Rocket projectile & ammo pickup sprites

Mechadon:
 - Fonts

Status bar and additional graphics are composited by skillsaw from source material from OTEX by ukiro.

Large status bar numbers from Requiem.

Monster resources sourced from Realm667 and converted to EDF by skillsaw. Full credits below.

Catharsi:
 - Submitted: Tormentor667
 - Original Code: Tormentor667, Ghastly Dragon (ZScript conversion)
 - GLDefs: Ghastly Dragon, Sandypaper (Brightmaps)
 - Sounds: Id Software (Quake 3 Arena)
 - Sprites: Id Software, LucasArts
 - Sprite Edit: Rottking
 - Idea Base: Serious Sam Aliens

Cybruiser
 - Submitted: Tormentor667
 - Code: Amuscaria, Ghastly (ZScript conversion)
 - GLDefs: Dreadopp, SandyPaper (Brightmaps)
 - Sounds: id Software, Amuscaria
 - Sprites: id Software, Raven Software, Wolfendoom
 - Sprite Edit: Amuscaria
 - Idea Base: Doom 2 Cyberdemon

Grell
 - Submitted: Xaser
 - Code: Xaser, Ghastly (ZScript conversion)
 - GLDefs: Eriance (from Vulgar), Sandypaper (brightmaps)
 - Sounds: id Software (from Quake II)
 - Sprites: NMN (enemy), Eriance (projectile)
 - Idea Base: D&D's Grell enemy

Rocket Zombie
 - Submitted: Tormentor667
 - Code: Graf Zahl, Ghastly (ZScript conversion)
 - GLDefs: Dreadopp, Sandypaper (Brightmaps)
 - Sounds: Id Software
 - Sprites: Id Software
 - Sprite Edit: The Innocent Crew

Suicide Bomber
 - Submitted: Tormentor667
 - Code: Tormentor667, Ghastly (ZScript conversion)
 - GLDefs: Dreadopp, Sandypaper (Brightmaps)
 - Sounds: Id Software, Croteam (Serious Sam)
 - Sprites: Id Software, Mark Quinn, Anthony Cole
 - Sprite Edit: Tormentor667
 - Idea Base: Suicide Bomber from Serious Sam

Heart
 - Orignal sprites by Konami (Contra III)