- Weapons of Saturn mod by: Lippeth
- Doom Monster Randomizer mod by: Snarboo
- JP HUD Enemy Health Bar by: JPalomo
- Remastered Doom sound effects by: PerKristian
- Doom alternative sound effects by: BouncyTEM
- Plasma Zapper, Hell Missile Launcher & Flame Cannon sprites by: Mike12
- DoomGuy's sounds pack by: Trent Reznor
- IcyDemon & IcySpectre created by: Hexereticdoom
- Quad Shotgun code by: Aerial
- Rottweiler code by: Captain Toenail (Realm 667)
- HXRTC Project title header replace created by: Hexereticdoom
- ArachnoPhyte, Cacolantern, Diabloist, MaulerDemon & Snake Imp codes by: Tormentor667 (Realm 667)
- Elite Arachnotron code by: Zdude (Realm 667)
- Deep One code by: Dr. Doctor (Realm 667)
- Phantasm code by: MagicWazard (Realm 667)
- Plasma Elemental code by: The Ultimate Doomer (Realm 667)
- Rifle Commando & Superdemon code by: Xim (Realm 667)
- Frozen Bones & Rocky Mancubus created by: Hexereticdoom
- Evil Warrior Shield created by: Hexereticdoom
- Doom Terrain Splashes addon by: MagicWazard (Realm 667)
- Tech Lamps, Bronze Lamps, Oil Drum and Mega Computer Map code by: Captain Toenail (Realm 667)
- Corpse Pile and Black Hole Maker code by: Gothic (Realm 667)
- Daisy's Head Scenes code by: Bravo (Realm 667)
- Coloured Evil Eyes and Coloured Torches code by: ChronoSeth (Realm 667)
- Skull Tree code by: Zrrion The Insect (Realm 667)
- Impaled Zombies taken from Shootable Impaled Humans addon by DeVloek (Realm 667)
- Coach Gun sprites by: BingoJohnson
- Bronze/Silver/Gold Coin sprites by: Drew5.net
- Coins & cash pickup sounds by: ArtisticDude (OpenGameArt.org)
- Moneybag sprite taken from Streets Of Rage game, edited by: Hexereticdoom
- DoomGuy Base II/Orion skin sprites by: The Skulltag Team (DevilHunter's Skin Pack)
- Helmeted DoomGuy mugshot sprites by: Amuscaria
- Gem sprites by: Glaber Co. & Draikonine (DeviantArt)
- Gems pickup sound by: The Berklee College of Music (OpenGameArt.org)
- Fake Coins pickup sound taken from Yoshi's Island game, edited by: Hexereticdoom
- Rotating Key Card & Skull Key sprites by: Gifty
- Key Card & Skull Key pickup sound base by: ViRiX
- Evil Eye sounds and projectile sprites by: FreeDoom Project Team
- M134 Minigun sprites by: The Skulltag Team
- Mistery Box sprite base by: Sgt. Shivers
- Gremlin, Mini-Gremlin and Frosty Slug sprites by: FreeDoom Project Team
- Gremlin sounds by: FreeDoom Project Team
- Mini-Gremlin sounds by: Raven Software
- Frosty Slug sounds by: SuperSomariDX
- New Help Screen created by: Hexereticdoom
- AlphaSphere and BetaSphere sprites by: Ozymandias81
- Some enemy sprites for alternate deaths and gib deaths by: Ghastly (Realm 667)
- Other enemy sprites for leap attacks, plus alternate deaths & gib deaths by: Finalizer
- Dual Pulse Rifle sprites taken from Sgt. Mark IV's Brutal Doom, edited by: Hexereticdoom
- Gasoil Can and Venom Bottle sprites taken from unknown sources(*), edited by: Hexereticdoom
- Bonsai Tree sprites by: Sergeant Mark IV
- Impaled Cacodemon sprite base by: 40oz
- Centipede sprites by: Raymoohawk
- Centipede sounds by: FreeDoom Project Team
- Additional enemy sprites & sounds for alternate deaths edited by: Hexereticdoom
- Chainsaw & Saw Thrower wall decals by: Faerlyn
- Chaos Skeleton sprites by: FreeDoom Project Team
- Chaos Skeleton sounds taken from Monolith Games, edited by: Hexereticdoom
- New skull ornament for Quad Shotgun by: Bane
- Railgun 2.0 sprites by: The Skulltag Team
- Railgun 2.0 shooting sounds by: Gumichan01 (OpenGameArt.org)
- Pistol Gunner sprites by: BlueFireZ88
- Butcher sprites & code by: Scalliano (Realm 667)
- Butcher sounds by: FreeDoom Project Team
- Female Zombies pack by: DavidRaven (Realm 667)
- Pulse Marksman by: Tormentor667 (Realm 667)
- Doom Marine corpses and Cacodemon alternate death by: ItsNatureToDie
- Some animated textures & flats taken from Sgt. Mark IV's Brutal Doom, edited by: Hexereticdoom
- Big Rat and Giant Bat sprites, sounds & code by: Captain Toenail (Realm 667)
- Several broken Tech Lamps & Light Column sprites & sounds edited by: Hexereticdoom
- Computer Tech-Pillar crystal shard sprites, sounds & code by: Mor'ladim
- Big Tree On Flames' resources from Sgt. Mark IV & Osjclatchford, built by: Hexereticdoom
- Bloody Hangmen sprites (now with rats) taken from Sgt. Mark IV's Brutal Doom, edited by: Hexereticdoom
- Double Knuckles fist sprites by: That_One_Doom_Mod (Realm 667)
- Double Knuckles uppercut hand sprite taken from unknown source(*), edited by: Hexereticdoom
- Fast Kick foot sprites by: Sgt. Mark IV
- New Beretta & Colt 1911 secondary fires created by: Hexereticdoom
- Original Colt 1911 sprites by: Captain J
- Dual Colt 1911 sprites created and edited by: Hexereticdoom
- Saw Thrower sprites & sounds by: Xatrix (Realm 667)
- Master Shotgunner sprites by: The Skulltag Team
- Infernal Imp sprites & code by: Dreadopp (Realm 667)
- Baby Cacodemon sprites & code by: Yuraofthehairfan (Realm 667)
- Wicked Shadow and Wicked Spectre sprites & code by: Jaeden (Realm 667)
- Hellish Dog, Hellish Spectre, Watcher, Blizzard Soul & Hell Necromancer sprites & code by: Amuscaria (Realm 667)
- Dark Satyr sprites & code by: Ghastly Dragon (Realm 667)
- CyberWarrior sprites & code by: Finalizer
- Nightmare Reaper by: MagicWazard (Realm 667)
- Underworld Minion & Underworld King sprites & sounds by: 3D Realms
- Underworld creatures' walking sounds taken from Dragon Ball Z series, edited by: Hexereticdoom
- Machinegun Mancubus by: 00_Zombie_00
- Armored Missile Tank by: Xim (Realm 667)
- Railgun Spider by: Tormentor667 (Realm 667)
- Arachnorb sprites, sounds & code by: Jimmy91 (Realm 667)
- Arachnorb Queen code by: Yuraofthehairfan (Realm 667)
- Mimic, Blue Mimic, Flying Mimic & Golden Mimic sprites & code by: Hexereticdoom
- Mimic, Blue Mimic, Flying Mimic & Golden Mimic sounds taken from Chex Quest 3, edited by: Hexereticdoom
- Trade Shop Droid sprites base by: Sgt. Shivers
- Terror Mask sprites base by: Raven Software
- Wolfenstein treasure sprites & sounds by: ID Software
- Cash Bundle sprite created by: Hexereticdoom
- Cash Bundle pickup sound by: CapsLok (FreeSound.org)
- Auto Shotgun sprites & code by: Captain Toenail (Realm 667)
- Auto Shotgun sounds by: TheRailgunner
- Auto Shotgun pickup sprite by: HellCattX (Realm 667)
- Executioner sprites & code by: 00_Zombie_00
- Executioner sounds by: FreeDoom Project Team
- Juggernaut taken from Sgt. Mark IV's Brutal Doom, edited by: Hexereticdoom
- Medusoid sprites by: Raymoohawk & FreeDoom Project Team
- Medusoid sounds by: GeckoYamori
- Nightly Shade sprites, sounds & code by: Amuscaria (Realm 667)
- Ghost Ghoul sprites & code by: Amuscaria (Realm 667)
- Ghost Ghoul sounds by: FreeDoom Project Team
- Poison Dart Blowgun sprites & code by: Drakon
- Dart Shooter and Supreme Shotgunner sprites & code by: Scalliano (Realm 667)
- Plasma Gunman sprites & code by: DavidN (Realm 667)
- CyberKnight code by: Ben2k9 (Realm 667)
- Viscount of Hell sprites & code by: Amuscaria (Realm 667)
- Gasoil Tin sprite taken from WPClipart.com, edited by: Hexereticdoom
- Venom Jar sprite base by: Raven Software
- Chilly Mancubus created by: Hexereticdoom
- Chilly Mancubus sounds by: FreeDoom Project Team
- Venom Revenant sprites base and Chilly Mancubus' ice steam attack by: 00_Zombie_00
- N.R.'s Dual Raygun and C.M.'s Ice Bombard sprites taken from Sgt. Mark IV's BD (v19), edited by: Hexereticdoom
- Ghostly Black Gem sprites by: The Skulltag Team
- Ghostly Black Gem's magic aura sound taken from Dragon Ball Z series, edited by: Hexereticdoom
- Dual Plasma Zappers' sprites base by: Kirpi4
- M24 Sniper Rifle sprites base by: Finalizer, GhostKillahZero & Zrrion The Insect
- M24 Sniper Rifle code by: TODM (Realm 667)
- M24 Sniper Rifle sounds by: Valve Software
- Some new Boss Brain sounds taken from Sgt. Mark IV's Ultimate Icon of Sin addon, edited by: Hexereticdoom
- Devil Imp sprites & code by: Amuscaria (Realm 667)
- Giant Wasp sprites & code by: Captain Toenail (Realm 667)
- Pulse Spider by: Tormentor667 (Realm 667)
- Nazi Soldier sprites & sounds taken from Sgt. Mark IV's Brutal Doom, edited by: Hexereticdoom
- German Shepherd sprites & code by: ID Software
- Soul Harvester additional sprites by: HorrorMovieGuy
- Napalm Launcher sprites, sounds & code by: Amuscaria (Realm 667)
- Earthquake sound taken from Zelda/A Link To The Past game, edited by: Hexereticdoom
- Medusoid's sonic waves, Blue Mimic & Flying Mimic belch attack by: Hexereticdoom
- Sniper and Missile Launcher sprites & code by: Xim (Realm 667)
- Arsonist sprites & code by: Scalliano (Realm 667)
- Cacostalker sprites by: Vader (Realm 667)
- Cacostalker code by: Hnsolo77 (Realm 667)
- Panic Elemental sprites by: Captain Ventris
- Arctic Archer sprites & code by: Ravagefox (Realm 667)
- Z-Gun and Z-Gun Plus sprites by: Amuscaria, Gothic & Blox (Realm 667)
- Z-Gun and Z-Gun Plus sounds taken from Sgt. Mark IV's Doom 2016 Weapons Addon for Brutal Doom, edited by: Hexereticdoom
- Giant Wasp's sting poison attack sprites by: Scalliano (Realm 667)
- Venom Monsters' Toxic Wand sprites & code by: CodenniumRed (Realm 667)
- Burning corpses sprites by: 3D Realms & Amuscaria (Realm 667)
- Tesla Coil sprites & code by: Captain Toenail (Realm 667)
- Hand Grenade sprites & sounds by: Lobotomy Software & NeoWorm (Realm 667)
- Land Mine sprites, sounds & code by: LucasArts, ID Software & Gothic (Realm 667)
- New Gunner and Shotgunner alternate death sprites by: HorrorMovieGuy
- Orb-shaped gem sprites by: Supersonic1009 (DeviantArt)
- Medical Backpack & Mini Stimpack sprites by: BloodyAcid (Realm 667)
- Candelabra colour variation sprites by: TheUltimateFaris766 (Realm 667)
- Leafy Tree sprites by: Osjclatchford
- Mushroom sprites by: ShadowCaster & Captain Toenail (Realm 667)
- Bloody Chain Hook sprites by: Midway Games & Scalliano (Realm 667)
- Hanged Impse sprites and Marine/Imp/Gunner/CyberDemon Headsticks by: Captain Toenail (Realm 667)
- New Doom Marine corpses by: MDK (Realm 667)
- Gibbed Doom Marine with helmet sprite by: The Skulltag Team
- Jumble of Bones original sprites by: Captain Toenail & Captain Awesome (Realm 667)
- One Wheeler sprites & code by: Captain Toenail (Realm 667)
- Knife Thrower sprites & code by: Scalliano (Realm 667)
- Saboteur and Lord of Souls sprites & code by: Tormentor667 (Realm 667)
- Saboteur bomb timer sound created by: Hexereticdoom
- Knife sprites & code by: Scuba Steve & Xim (Realm 667)
- Killer Shadow sprites, sounds & code by: Vader (Realm 667)
- Slime Worm and Slime Spectre sprites by: FreeDoom Project Team
- Slime Worm and Slime Spectre code by: Captain Toenail (Realm 667)
- Black Panther sprites, sounds & code by: IMX & Lobotomy Software
- Glacial Cacodemon sprites, sounds & code by: Breadbagfly
- Evil-O-Wisp sprites & sounds by: FreeDoom Project Team
- Psycho Elemental sprites, sounds & code by: Onslaught Six
- Stone Knight sprites by: Bullfrog (Realm 667)
- Stone Knight code by: Mr. Green (Realm 667)
- Armored Plasma Tank by: Xim & Enjay (Realm 667)
- Arachno-Baron sprites & code by: WhoDaMan (Realm 667)
- Icicle Tyrant sprites by: Amuscaria (Realm 667)
- Icicle Tyrant sounds taken from unknown source(*), edited by: Hexereticdoom
- Mecha-Beast sprites & code by: Virtue (Realm 667)
- Cyber-Mastermind sprites & code by: Nanami (Realm 667)
- Impaled Dog Heads and Special Combat Droid sprites & code by: Gothic (Realm 667)
- New Computer Tech-Pillar sound effect taken from Knight Rider series, edited by: Hexereticdoom
- Renegade Marines sounds taken from Sgt. Mark IV's Brutal Doom, edited by: Hexereticdoom
- New taunts (speaking & laughing sounds) taken from Team Fortress 2 game, edited by: Hexereticdoom
- Pest Master sprites by: Raymoohawk
- Pest Master sounds taken from TerminusEst13's DemonSteele addon, edited by: Hexereticdoom
- Sinister Fiend sprites by: Rolls & Tormentor667 (Realm 667)
- Sinister Fiend sounds by: Raven Software & Croteam (Realm 667)
- UAC Chemical Spray sprites & sounds taken from unknown sources(*), edited by: Hexereticdoom
- Black Imp sprites and code by: The Skulltag Team & Vader (Realm 667)
- Infernal Cacodemon and Arachnosseous sprites & sounds taken from Pa1nki113r's PB addon, edited by: Hexereticdoom
- Dual Combat Rifle sprites base by: Mike12
- Gatling Lasergun sprites, sounds & code by: BadMojo (Realm 667)
- Bucentaurus sprites taken from Sgt. Mark IV's Brutal Doom, edited by: Hexereticdoom
- Pyroflamer sprites taken from Mouldy's Going Down Doom megawad, edited by: Hexereticdoom
- New DoomGuy's Experience System original code by: FLYBAT
- New Secret Found and Level Up sounds by: PocApp Studios
- New laser projectile sounds created by: Hexereticdoom
- Draining Potion & Regeneration Potion sprites by: Tormentor667 (Realm 667)
- Smart PDA sprite & code by: Scalliano (Realm 667)
- Smart PDA pickup sound taken from Pokemon series, edited by: Hexereticdoom
- Ancient Ankh sprite by: Blue Shadow (Realm 667)
- Small kit of Assorted Ammo, small kit of Shotgun Shells & Energy Cell Kit sprites by: Dreadopp (Realm 667)
- Stimulant Serum sprites by: MagicWazard (Realm 667)
- Calming Pills sprite taken from unknown source(*), edited by: Hexereticdoom
- Poca-Cola Energy Drink sprite & sound taken from TerminusEst13's DemonSteele addon, edited by: Hexereticdoom
- New taunts (burping & farting sounds) taken from unknown source(*), edited by: Hexereticdoom
- Needle Buster sprites by: ShadesMaster (Realm 667)
- Big Head Imp and Big Head Spectre sprites & code by: Midway Software & Captain Toenail (Realm 667)
- Slime Brain sprites by: NMN & Amuscaria (Realm 667)
- Slime Brain code by: Xaser (Realm 667)
- Slime Brain sounds by: ID Software
- Keymaster Talisman sprite by: Raven Software & Blue Shadow (Realm 667)
- Sentinel Mushroom sprites by: Gothic (Realm 667)
- Sentinel Mushroom sounds by: Raven Software & Monolith Productions
- Berserk Backpack & Maiden Ring sprites by: Hexereticdoom
- Maiden Ring pickup sound taken from unknown source(*), edited by: Hexereticdoom
- Heavy Chaingun sprites & code by: Z86 & Amuscaria (Realm 667)
- Gelid Bruiser created by: Hexereticdoom
- Granite Gargoyle sprites by: Vader & Tormentor667 (Realm 667)
- Granite Gargoyle sounds by: Ghastly (Realm 667)
- Terrifier sprites & code by: NeoWorm (Realm 667)
- Terrifier sounds by: ID Software
- Toxis Lizard sprites by: Amuscaria (Realm 667)
- Toxis Lizard sounds by: Blizzard Entertainment
- Supply Box sprite & code by: Dreadopp (Realm 667)
- Improved Auto Shotgun sprites by: Hexereticdoom
- Improved Heavy Chaingun sprites by: Dr_Cosmobyte, Amuscaria & Sgt. Mark IV
- Boss Brain Time Bomb & Time Flame Bomb sprites taken from Crash Bandicoot 3 game, edited by: Hexereticdoom
- Boss Brain Time Bomb & Time Flame Bomb sounds taken from unknown source(*), edited by: Hexereticdoom
- Demonkiller Carbine sprites & code by: Skelegant & Ozymandias81 (Realm 667)
- Demonkiller Carbine sounds by: TheRailgunner
- Multi-Elemental Cannon sprites by: Amuscaria (Realm 667)
- Acid Arbalest sprites by: Blasphemer Project Team
- Acid Arbalest sounds by: Raven Software & TerminusEst13
- Box of Rifle Ammo sprite base by: BloodyAcid
- Pile of Rockets sprite base by: Dreadopp (Realm 667)
- Dual Pistol Gunner sprites by: BlueFireZ88(**)
- Carabineer sprites & code by: Skelegant (Realm 667)
- Needle Gunner sprites by: Unknown author(*)
- Phoenix Imp & Risen Phoenix Imp sprites by: Breadbagfly
- Phoenix Imp & Risen Phoenix Imp sounds by: Blasphemer Project Team
- Mud Monster, Mud Spectre & Sewer Slug sprites by: FreeDoom Project Team
- Mud Monster & Mud Spectre sounds by: IMX
- Alpha Hades & Omega Hades sprites, sounds & code by: Amuscaria (Realm 667)
- Flesh Spawn sprites, sounds & code by: Vader (Realm 667)
- Punish Elemental & Armageddon sprites by: SunMadcat
- Spark Skeleton sprites by: 00_Zombie_00
- Arachno-Knight sprites & code by: WhoDaMan(**)
- Armageddon sounds by: Raven Software
- Poca-Cola Energy Bottle sprite & pickup sound taken from unknown source(*), edited by: Hexereticdoom
- Coin Toss sound taken from Yoshi's Island game, edited by: Hexereticdoom
- McDoomsday French Fries & McDoomsday Cheese Steak Burger sprites taken from unknown source(*), edited by: Hexereticdoom
- McDoomsday items (see above) pickup sounds taken from TerminusEst13's DemonSteele addon, edited by: Hexereticdoom
- Blast Wave Device sprites by: Zrrion The Insect (Realm 667)
- Blast Wave Device sounds taken from Pokemon series, edited by: Hexereticdoom
- Cyber Imp sprites by: Skelegant (Realm 667)
- Cyber Imp sounds by: Virtue (Realm 667)
- Beholder sprites by: SunMadcat
- Beholder sounds by: Amuscaria (Realm 667)
- Several new enemy sprites for alternate deaths and some gib deaths by: ItsNatureToDie
- New Big Tree and Torch Tree sprites by: FreeDoom Project Team
- Stalagtite Skulls sprites by: Captain Toenail (Realm 667)
- W-Shotgun sprites by: Fuzzyblaze & Infirnex (Realm 667)
- W-Shotgun sounds taken from TerminusEst13's DemonSteele addon, edited by: Hexereticdoom
- Box of Hand Grenades & Box of Land Mines sprites by: Hexereticdoom
- Crows in Green & Red Vases sprites base by: Mor'ladim & Captain Toenail (Realm 667)
- Tartarus Keeper sprites & code by: Espi (Realm 667)
- Tartarus Keeper sounds by: Amuscaria (Realm 667)
- Glint Master sprites by: Raymoohawk
- Glint Master sounds taken from TerminusEst13's DemonSteele addon, edited by: Hexereticdoom
- Flesh Wraith sprites by: FreeDoom Project Team
- Flesh Wraith sounds by: Raven Software
- Venus Weed original sprites by: Mike12 & NeoWorm (Realm 667)
- Venus Weed sounds by: ID Software, Raven Software & Jaeden (Realm 667)
- GammaSphere and DeltaSphere sprites by: Ozymandias81
- Snap-Jaw Trap sprites by: NeoWorm
- Snap-Jaw Trap sounds by: Raven Software
- Improved Venus Weed sprites by: Negative
- Cryogenic Repeater sprites by: MonkeyBTM6 & Insomniac Games
- Arctic Archer's Chiller Crossbow by: Bloax (Realm 667)
- Cryogenizer Bolts sprites by: Bloax (Realm 667)
- Box of Cryogenizer Bolts sprites base by: Sangelothi
- Stealth Trooper sprites & code by: MagicWazard (Realm 667)
- Ultimate Shotgunner sprites & code by: ItsNatureToDie & Skelegant (Realm 667)
- Multi-Elemental Cannoneer sprites & code by: Ghastly Dragon & Tormentor667 (Realm 667)
- Parasite Imp sprites by: Finalizer & HorrorMovieGuy (Realm 667)
- Parasite Imp sounds by: ID Software & Raven Software
- Scourge Demon & Scourge Spectre sprites by: IMX & Gez
- Scourge Demon & Scourge Spectre sounds by: FreeDoom Project Team
- Regal Cacodemon sprites by: SunMadcat
- Regal Cacodemon sounds by: ID Software
- Ying-Yang Slither sprites by: Hexereticdoom
- Ying-Yang Slither sounds taken from Zelda/A Link To The Past game, edited by: Hexereticdoom
- Hanged Marines sprites by: Anarchist & Captain Awesome (Realm 667)
- Hot Coal Cauldron sprites by: ShadowCaster & Captain Toenail (Realm 667)
- Hot Coal Cauldron sounds by: Epic Games
- Super Backpack sprite taken from Sgt. Mark IV's Brutal Doom, edited by: Hexereticdoom
- Mistery Chest & Golden Mistery Chest sprites by: Raven Software & Blue Shadow (Realm 667)
- Bronze, Silver & Golden Ticket sprites taken from unknown source(*), edited by: Hexereticdoom
- Bronze, Silver & Golden Ticket pickup sounds taken from Donkey Kong Country 3 game, edited by: Hexereticdoom
- Omicron Raygun sprites taken from TheRailgunner's X-Weapon mod, edited by: Hexereticdoom
- Omicron Raygun piece sprites taken from TerminusEst13's DemonSteele addon, edited by: Hexereticdoom
- Omicron Raygun sounds taken from Syndicate Wars game, edited by: Hexereticdoom
- Captive Mini-Alien sprites by: FreeDoom Project Team
- Captive Mini-Alien sounds taken from SuperTux game, edited by: Hexereticdoom
- Improved Renegade Marines sprites by: DBJ87 (Realm 667)
- Placeable columns sprites by: Rogue Entertainment
- Wrench sprites & sounds by: Captain J & Aethun
- Laser Musket sprites, sounds & code by: BadMojo (Realm 667)
- Electro Fusil sprites & code by: Ravage & Xim (Realm 667)
- Flux Wave Cannon sprites & code by: Amuscaria & Tormentor667 (Realm 667)
- Flux Wave Cannon sounds taken from Syndicate Wars game, edited by: Hexereticdoom
- BFG-667 sprites by: Amuscaria (Realm 667)
- BFG-667 sounds taken from Quaker540's Sub-Mod addon, edited by: Hexereticdoom
- Tartarus Keeper's Magic Staff sprites & code by: Osjclatchford
- Scorpio Scepter sprites by: Blasphemer Project Team
- Scorpio Scepter sounds by: Raven Software & Aethun
- Ammo Belt sprite by: ID Software & Ghastly Dragon (Realm 667)
- Micro Berserk sprite by: BloodyAcid
- Ace of Knives sprites by: Hexereticdoom
- Ace of Knives pickup sound taken from Star Fox game, edited by: Hexereticdoom
- Hunting Dog Whistle sprite taken from unknown source(*), edited by: Hexereticdoom
- Hunting Dog sprites & sounds taken from GZDoom's internal PK3 file, edited by: Hexereticdoom
- Exit Warp Bomb sprite taken from Star Fox game, edited by: Hexereticdoom
- Exit Warp Bomb pickup sound taken from Microsoft Plus! pack, edited by: Hexereticdoom
- Z-Gun Upgrade Kit sprite taken from TerminusEst13's DemonSteele addon, edited by: Hexereticdoom
- Pepperoni & Anchovies Pizza sprite taken from unknown source(*), edited by: Hexereticdoom
- Maiden Necklace sprite by: Hexereticdoom
- Silver Bars Pile & Gold Bars Pile sprites by: Raven Software
- Wrench Beater and Chemical Sprayer sprites & code by: Scalliano (Realm 667)
- Cryogenic Gunner sprites & code by: Skelegant (Realm 667)
- Spook Imp sprites by: ID Software & Damien Daurio (Realm 667)
- Techno-Demon & Techno-Spectre sprites, sounds & code by: ID Software & DeVloek (Realm 667)
- Pandemoniac sprites by: ID Software & Carnevil (Realm 667)
- Pandemoniac sounds by: Raven Software & 3D Realms
- Flame Genie sprites by: ID Software, Espi & Ebola (Realm 667)
- Flame Genie sounds by: Raven Software & Aethun
- Assault Ship sprites & sounds by: ID Software & 3D Realms
- Assault Ship code by: Tormentor667 & Mancubus (Realm 667)
- Scary Shocker sprites by: Captain Toenail & Ghastly Dragon (Realm 667)
- Scary Shocker sounds by: ID Software
- Cacodemental sprites by: ID Software & Enjay (Realm 667)
- Cacodemental sounds by: ID Software & Raven Software
- Pebble Bones sprites by: 00_Zombie_00
- Pebble Bones sounds by: Bethesda Softworks & Daggerfall (Realm 667)
- Electric Slug sprites by: FreeDoom Project Team
- Electric Slug sounds taken from unknown source(*), edited by: Hexereticdoom
- Arachno-Demon sprites by: SunMadcat
- Arachno-Demon sounds by: ID Software
- High Voltagecko sprites by: Amuscaria (Realm 667)
- High Voltagecko sounds by: Monolith Productions
- Apocalypse sprites by: 00_Zombie_00
- Apocalypse sounds by: Aethun & PerKristian
- Space Brainiac sprites & code by: Raz (Realm 667)
- Space Brainiac sounds by: FreeDoom Project Team & Rogue Entertainment
- Red Strobe Light sprites & code by: Captain Toenail (Realm 667)
- Red Strobe Light alarm sound taken from Silent Hill game, edited by: Hexereticdoom
- Mini Volcano, Candle Stubs and Spilled Blood Chalice sprites by: Raven Software
- Devilish Busts and Devilish Bust Pillars sprites & code by: ETTiNGRiNDER
- Commando Headstick and Impaled Marine Torso sprites by: The Skulltag Team
- Marble Columns variation sprites by: Captain Toenail, Gez & ShadesMaster (Realm 667)
- Trash Bin sprite by: 3D Realms & Lucario (Realm 667)
- MemenTwo Big and Small style fonts by: Jimmy
- Custom Automap Player Arrow by: M8f
- Uzi sprites by: Captain Toenail (Realm 667)
- Uzi sounds by: Bratish
- Defense Boost Elixir sprites by: Zauberer Project Team
- Rapid Fire Trooper sprites & code by: Graf Zahl
- Extreme Shotgunner sprites by: Unknown author(*)
- Electro Fusilier sprites & code by: Tormentor667 & Ghastly Dragon (Realm 667)
- Vulcanus Viper sprites by: Noisyvelvet
- Vulcanus Viper sounds by: Raven Software & Jaeden (Realm 667)
- Gross Gooey & Gross Spectre sprites by: Blasphemer Project Team
- Gross Gooey & Gross Spectre sounds by: Bratish
- Tentacombust & Tentachemical sprites by: Raymoohawk
- Tentacombust & Tentachemical sounds taken from TerminusEst13's DemonSteele addon, edited by: Hexereticdoom
- Leader Imp sprites by: ID Software & ItsNatureToDie (Realm 667)
- Leader Imp sounds by: ID Software
- Master Black Imp sprites & sounds by: ID Software & Amuscaria (Realm 667)
- Master Black Imp sounds by: ID Software
- Aerial Imp sprites by: ID Software & Maelstrom (Realm 667)
- Aerial Imp sounds by: Virtue (Realm 667)
- Shiverer sprites & code by: NeoWorm (Realm 667)
- Shiverer sounds by: ID Software
- Nitro Brain sprites by: NMN & Amuscaria (Realm 667)
- Nitro Brain code by: Xaser (Realm 667)
- Nitro Brain sounds by: ID Software
- Energy Skeleton sprites by: 00_Zombie_00
- Energy Skeleton sounds by: Bethesda Softworks & Daggerfall (Realm 667)
- Bionic Arachnoid & Bony Brainwasher sprites by: FreeDoom Project Team
- Bionic Arachnoid sounds by: Bratish
- Bony Brainwasher sounds by: Black Isle Studios & Blizzard Entertainment
- Undead Mercenary sprites taken from Pa1nki113r's Project Brutality addon, edited by: Hexereticdoom
- Undead Mercenary sounds by: Unknown author(*)
- Railshatterer sprites by: SunMadcat
- Railshatterer sounds by: FreeDoom Project Team & Bratish
- Giga Devil sprites by: Cage
- Giga Devil sounds by: DeXiaZ & Mechadon
- Giga Devil code by: HorrorMovieGuy
- Tentacle Twinblazer sprites taken from Sgt. Mark IV's Doom 2016 Weapons Addon for Brutal Doom, edited by: Hexereticdoom
- Tentacle Twinblazer sounds taken from TerminusEst13's DemonSteele addon, edited by: Hexereticdoom
- Impbot sprites by: ENGINE Technology & Enjay (Realm 667)
- Impbot sounds by: Blizzard Entertainment, ID Software & Rogue Entertainment
- Impbot's laser sounds taken from Xim's Star Wars Doom mod, edited by: Hexereticdoom
- Demondroid, Spectredroid & Cacotronic sprites by: Craneo
- Demondroid, Spectredroid & Cacotronic sounds taken from Xim's Star Wars Doom mod, edited by: Hexereticdoom
- Ying-Yang Slither's Killer Wave sprites & sounds by: Hexereticdoom
- Boss Brain death sprite created and edited by: Hexereticdoom
- ??? (unknown secret & ultra-rare weapon)(***) sprites taken from unknown sources(*), edited by: Hexereticdoom
- ??? (unknown secret & ultra-rare weapon)(***) sounds by: Bratish & Tuan Anh Le
- ??? (unknown secret & ultra-rare weapon)(***) original idea by: Aquarius199/NiTROACTiVE
- Big Axe sprites & code by: NeoWorm, TheMightyHeracross & Blue Shadow (Realm 667)
- Big Axe sounds by: Rogue Entertainment & 3D Realms
- Doom Dolls sprites by: JoeyTD & EndHack (Realm 667)
- Doom Dolls pickup sound by: ID Software
- Firespit Imp, Caconeedles, Minicubus & Arachno-Cacodemon sprites by: SunMadcat
- Firespit Imp, Caconeedles, Minicubus & Arachno-Cacodemon sounds by: ID Software
- Swine Shrew, Swine Spectre & Joker Imp sprites by: Stopsignal (Realm 667)
- Swine Shrew & Swine Spectre sounds by: ID Software, Valve & Gearbox Software
- Joker Imp sounds by: ID Software & FreeSounds.org
- Spy Drone sprites by: CodenniumRed & Cryomundus (Realm 667)
- Spy Drone sounds taken from Xim's Star Wars Doom mod, edited by: Hexereticdoom
- Blazemander & Carnageptile sprites by: Raymoohawk & HorrorMovieGuy
- Blazemander & Carnageptile sounds by: Raven Software & ShadowCaster
- Boss Brain's new monster spawning Cubes by: FreeDoom Project Team
- Y-Mauser sprites & sounds taken from Doomguy-X & Khold's Infernal Attack Doom mod, edited by: Hexereticdoom
- Meanguard Zolom sprites by: SunMadcat
- Meanguard Zolom sounds by: Ensemble Studios & Skybox Labs
- Hanged Revenant sprites & code by: Team TNT & Doom64hunter (Realm 667)
- Hanged CyberDemon & Hanged Rocket Arm sprites & code by: Skelegant (Realm 667)
- Tan Flesh Pod & Pink Flesh Pod sprites by: Gothic (Realm 667)
- Tan Flesh Pod & Pink Flesh Pod sounds taken from unknown sources(*), edited by: Hexereticdoom
- Venom Hand Mortar sprites by: FreeDoom Project Team
- Venom Hand Mortar sounds by: Ensemble Studios & Big Huge Games
- Impette & Flea Imp sprites by: Stopsignal
- Impette sounds by: ID Software & Raven Software
- Flea Imp sounds taken from unknown sources(*), edited by: Hexereticdoom
- Cacodemon Doll & CyberDemon Doll sprites by: ID Software
- Stinger sprites & sounds by: Amuscaria (Realm 667)
- Hinky-Punkin sprites & sounds by: FreeDoom Project Team
- Gremlin and Mini-Gremlin alternate death sprites by: Tartlman
- Small Fly sprites & code by: Doomedarchviledemon (Realm 667)
- Small Fly sounds by: FreeSounds.org
- Vermin Imp sprites & code by: The Innocent Crew & Graf Zahl (Realm 667)
- Vermin Imp sounds by: ID Software
- Steelish Star sprites by: Captain Toenail (Realm 667)
- Steelish Star sounds by: Raven Software
- Eerie Cacodemon, Doomsdaymare & Netherworld Hydra sprites & code by: SunMadcat
- Eerie Cacodemon sounds by: ID Software & Blasphemer Project Team
- Doomsdaymare sounds by: BouncyTEM
- Netherworld Hydra sounds by: Aethun
- Heroical Beverage sprites by: Blasphemer Project Team
- Diabolic Imp sprites & code by: Amuscaria & NaturalTvventy (Realm 667)
- Nuclear Demon & Nuclear Spectre sprites & code by: Scalliano
- Cacocritter sprites & code by: The Skulltag Team & Gothic (Realm 667)
- Diabolic Imp, Nuclear Demon, Nuclear Spectre & Cacocritter sounds by: ID Software
- Ghastly Imp sprites by: ID Software & Raven Software
- Ghastly Imp sounds by: Blizzard Entertainment
- Combat Slug sprites by: FreeDoom Project Team
- Combat Slug sounds taken from unknown source(*), edited by: Hexereticdoom
- Raider Spider sprites by: SunMadcat
- Raider Spider sounds by: ID Software
- Tri-Laser Machinegun sprites by: Captain J (Realm 667)
- Tri-Laser Machinegun sounds by: Bratish
- Raider Bazooka sprites & code by: DBJ87 (Realm 667)
- Raider Bazooka sounds by: ID Software & MagicWazard (Realm 667)
- Leap Drog & Leap Spectre sprites & code by: RaspberryJames (Realm 667)
- Leap Drog & Leap Spectre sounds taken from unknown source(*), edited by: Hexereticdoom
- Countess of Hell sprites by: Stopsignal & ID Software
- Countess of Hell sounds by: ID Software
- Murk Marauder sprites by: The Nate (Realm 667)
- Murk Marauder sounds by: ID Software & Raven Software
- Bionic Elemental sprites by: Craneo
- Bionic Elemental sounds taken from ED-209 character featured in Robocop movies, edited by: Hexereticdoom
- Armored Joker Imp sprites by: Stopsignal (Realm 667)
- Armored Joker Imp sounds by: ID Software & FreeSounds.org
- Raider Commando sprites by: Thenosid and NdroidZ (Realm 667)
- Raider Commando sounds by: Bratish
- Putridgeist sprites by: sDracox01 (Realm 667)
- Putridgeist sounds by: Bratish & FreeSounds.org
- Ketchup & Mustard Hot Dog sprite taken from unknown source(*), edited by: Hexereticdoom
- D-800 sprites by: ID Software & Craneo
- D-800 sounds taken from Pa1nki113r's Project Brutality addon, edited by: Hexereticdoom
- Plague Sower sprites by: Amuscaria (Realm 667)
- Plague Sower sounds by: ID Software & TheMisterCat (Realm 667)
- ??? (unknown secret & ultra-rare weapon)(***) sprites by: SoloSpaghetti
- ??? (unknown secret & ultra-rare weapon)(***) sounds by: Aethun & Raven Software
- Combined Arms Gunner, Combined Arms Cannoneer & Dux of Darkness sprites by: SunMadcat
- Tri-Laser Machinegunner sprites & code by: ID Software, Tormentor667 & Ghastly Dragon (Realm 667)
- Dux of Darkness sounds by: Blizzard Entertainment & Amuscaria (Realm 667)
- Deeper One sprites & code by: ID Software & Dr. Doctor (Realm 667)
- Deeper One sounds by: Shadowman & Acclaim Entertainment
- Radioactive Mushroom sprites by: Gothic & DeVloek (Realm 667)
- Radioactive Mushroom sounds by: Raven Software & Monolith Productions
- UAC Micro-Nuke sprites taken from unknown source(*), edited by: Hexereticdoom
- UAC Micro-Nuke sounds by: Big Huge Games & Xbox Game Studios
- Nuke Waste Bin sprites by: ID Software & UnTrustable
- AK47 Assault Rifle sprites by: Bethesda Softworks, WildWeasel & JoeyTD (Realm 667)
- AK47 Assault Rifle sounds taken from Pa1nki113r's PB addon, edited by: Hexereticdoom
- Ectoplasm sprites & code by: MagicWazard (Realm 667)
- Ectoplasm sounds by: ID Software & Raven Software
- RD-X Razor sprites by: Ramon.Dexter & OSJC Latchford
- RD-X Razor sounds by: Raven Software & Xatrix (Realm 667)
- RD-X sprites by: ID Software & DBJ87 (Realm 667)
- RD-X sounds by: Rogue Entertainment
- Chilly Minicubus sprites by: SunMadcat
- Chilly Minicubus sounds by: FreeDoom Project Team
- L-SMG sprites by: JoeyTD (Realm 667)
- L-SMG sounds by: Unknown author(*)
- Dual Uzis' sprites by: Captain Toenail (Realm 667)
- Dual Uzis' sounds by: Bratish
- Satyr & Dark Satyr's new shot sprites & sounds by: ID Software & Raven Software
- DaisySphere sprite by: ID Software & Nintendo Co. Ltd.
- DaisySphere pickup sound by: NCA FX
- Daisy Rabbit sprites by: Scuba Steve & Stopsignal
- Daisy Rabbit sounds taken from Super Bomberman series, edited by: Hexereticdoom
- UFO Daisy Rabbit sprites by: Stopsignal
- UFO Daisy Rabbit sounds taken from Xim's Star Wars Doom mod, edited by: Hexereticdoom
- Wooden Cask sprite by: Raven Software
- Poison Pester sprites by: Captain Toenail & Ghastly Dragon (Realm 667)
- Poison Pester sounds by: ID Software
- Poca-Cola Vending Machine sprites taken from unknown source(*), edited by: Hexereticdoom
- ??? (unknown secret & ultra-rare weapon)(***) sprites by: SuperPorkChops
- ??? (unknown secret & ultra-rare weapon)(***) sounds taken from unknown source(*), edited by: Hexereticdoom
- Support UFO sprites by: TerrorPenguin & FreeDoom Project Team
- Support UFO sounds by: Bratish & Landerlot
- Support UFO Caller sprites by: Rogue Entertainment & Scalliano (Realm667)
- Support UFO Caller pickup sound by: Gaming Sound Effects Library
- New Beretta & Dual Berettas pickup sprite by: Joblez_I
- New HXRTC Marine's double jump code by: Agent ME
- Psychoparasite sprites by: Stopsignal
- Psychoparasite sounds & code by: Hekmatyar, Aethun & Captain Toenail
- Boulder Howitzer sprites by: ID Software & Captain Toenail (Realm667)
- Boulder Howitzer sounds by: Aethun & URSE Games
- Opti-Maser Ballista sprites by: Captain J & Sgt. Shivers
- Opti-Maser Ballista sounds by: Aethun & Raven Software
- ??? (unknown secret & ultra-rare weapons)(***) sprites by: Captain J, Denisbelmondo & Tuuttipingu
- ??? (unknown secret & ultra-rare weapons)(***) sounds taken from Robocop movies, edited by: Hexereticdoom
- Darkside Imp sprites by: Yuzoo (Realm 667)
- Darkside Imp sounds by: Unknown author(*)
- Blind Demon & Blind Spectre sprites & code by: HorrorMovieGuy & DoomedArchvileDemon (Realm 667)
- Blind Demon & Blind Spectre sounds by: ID Software
- Cacoalien sprites by: ID Software & Craneo
- Cacoalien sounds by: Raven Software & Aethun
- Mochtroid sprites by: Korp
- Mochtroid sounds by: FreeDoom Project Team & Nintendo Co. Ltd.
- Renegade Markswoman sprites by: Alice Jameson
- Renegade Artillerywoman sprites by: Virtue (Realm 667)
- Renegade Bounty Huntress sprites by: NeoWorm & Xaser (Realm 667)
- Renegade Markswoman, Renegade Artillerywoman & Renegade Bounty Huntress sounds by: Raven Software
- Renegade Saboteur sprites by: TommyGalano5
- Renegade Saboteur sounds by: Apogee Software & FreeDoom Project Team
- New Superdemon attack sprites by: Craneo
- Newer Doom Marine corpses by: TG5, Tabijaky & Inkoalawetrust (Realm 667)
- ??? (unknown secret & ultra-rare weapon)(***) sprites taken from unknown source(*), edited by: Hexereticdoom
- ??? (unknown secret & ultra-rare weapon)(***) sounds by: Raven Software, Piste Gamez & Nintendo Co. Ltd.
- Little Chick sprites by: Shepardskin & AntumDeluge
- Little Chick sounds by: Raven Software & Piste Gamez
- Fried Egg sprites by: Unknown author(*)
- Fried Egg pickup sound by: Piste Gamez
- Fist-0 sprites & code by: TheDoomedArchvile (Realm 667)
- Fist-0 sounds by: CAPCOM
- Omega Blaster sprites by: Sonik.o.fan & LoneAlpha2401
- Omega Blaster sounds by: Unknown author(*)
- Gravel Gravemaker sprites by: ID Software, LucasArts & Rottking (Realm 667)
- Gravel Gravemaker sounds by: Raven Software & Rogue Entertainment
- Thunder Striker sprites & code by: LibreQuake Project & KILLA DIO (Realm 667)
- Thunder Striker sounds by: PerKristian, Epic Games & Free Radical Design
- Electro-Imp sprites & sounds by: ID Software & Virtue (Realm 667)
- Acid Maggot & Acid Spectre sprites by: Craneo & FreeDoom Project Team
- Giant Blowfly sprites by: Craneo & ID Software
- Acid Maggot, Acid Spectre & Giant Blowfly sounds by: DissyEx & Nintendo Co. Ltd.
- Hargrievous sprites by: NMN & Deon
- Hargrievous sounds by: Ensemble Studios & ID Software
- Arachno-Vile sprites & sounds by: CurtisCat2001 & ID Software
- Repeater sprites by: ID Software & Lazureus (Realm 667)
- Repeater sounds by: Infinity Ward Inc.
- Tough Gunner sprites by: ID Software & CthulhuCultist (Realm 667)
- Warfare Assaulter sprites by: DrPyspy
- Mercenary Gunner sprites by: ID Software & Enjay
- Tough Gunner, Warfare Assaulter & Mercenary Gunner sounds by: Bratish
- Slayer Imp sprites by: Amuscaria (Realm 667)
- Swamp Imp sprites by: Amuscaria & Dreadopp (Realm 667)
- Slayer Imp & Swamp Imp sounds by: Ensemble Studios & Skybox Labs
- Robo-Demon & Robo-Spectre sprites by: Tsran908
- Robo-Demon & Robo-Spectre sounds by: FreeDoom Project Team
- Zerg Bug sprites by: Nmn
- Zerg Bug sounds taken from unknown source(*), edited by: Hexereticdoom
- Nail Carronade sprites by: Capstone Software & KILLA DIO (Realm 667)
- Nail Carronade sounds by: Epic Games
- New Opti-Maser Ballista pickup sprite by: NeoWorm
- New One-Key Save Game's Heaven Angel sprites by: CherubCorps
+ Several graphics & sounds effects taken from Sergeant Mark IV's Brutal Doom mod, Quaker540's Sub-Mod, Faerlyn's Hard Doom mod, TheRailgunner's X-Weapon mod and some other unknown sources(*), all modified and edited by: Hexereticdoom
++ Updated new special powerup-pickup Announcer voices (ala Skulltag/Zandronum style) performed & recorded by Rallinth (YouTube channel:
http://www.youtube.com/channel/UCK1VR6JVFYzKGBRSgPL1IDA)
Special thanks to Quaker540 for his valuable help with Decorate code!
And also very big thanks to Samarai1000/Rallinth for his special collaboration in creating the new powerup-pickup Announcer voices for HXRTC Project! You're the best!
If I'm missing some credits to anyone, please just contact me at:
hexereticdoom@gmail.com
(*): Do you know the original author from (some of) this/these? Please tell it to me!
(**): Needs confirmation; not sure if that's the original author.
(***): You will need to play the mod to discover this special weapon. Please don't cheat!