A resource mod that adds 29 enemies. Includes a demonstration level.

The Goal:

To create an asset pack of new (relative to DOOM2) monsters for level designers that has a high rate of compatibility with modern source ports. I chose the MBF21 format, an expansion of Dehacked, because it had a good balance between compatibility and programming options. Also includes a few new decorations.

All the new enemies were also cloned in Decorate for additional compatibly. Which version is used depends on which source port is being used but both versions as designed to be identical in behavior.

No enemy from DOOM2 is replaced by this mod, as it is a pure expansion mod not a replacement mod.

An optional plugin for the DOOM Builder series of level builders is available. It makes all the new monsters appear on the THINGS menu for usage.

Compatible Ports that have been tested:

- DSDA-DOOM (v0.25.6 tested)
- DOOM Retro (v4.8.1 tested)
- From DOOM With Love (v2021.10.12 tested)
- Nugget DOOM (v1.12.0.0 tested)
- WOOF (v10.5.1.0 tested)
- GZDOOM (v4.10 and v4.7.1 tested)
- LZDOOM (v3.88.2 tested)

Ports that have compatible dev builds:

- Eternity Engine tested (v4.03.00 tested. get one of the development builds here)
- QZDoom (vg4.5pre-997-g765768508 tested. get one of the development builds here)


Source Ports that in theory should work but I have been unable to test:

- ReBoomExperimental (Seems to be defunct, can't find any active download links)

Source Ports that don't work:

- PrBOOM+ (Doesn't support MBF21, use DSDA-DOOM, which is built from PrBOOM+)
- Delphi DOOM (Incomplete MBF21 support, many of the monsters malfunction)

Source Ports with issues:

- Odamex: Morter Zombiemen projectiles don't work correctly.

New in version 1.2:

- Added 8 additional enemies
- Added 14 new decoration objects.
 
ENTERNITY ENGINE STUFF ( has no effect on the other supported ports):
 
- MEDB monsters and projectile can now interact with the approriate Eternity UDMF lindefs.
 
- Ground MEDB monsters are now effected by liquids with floorclipping in Eternity.
 
- Zombie rockets and morters have explosion particles in Eternity
 
OTHER CHANGES:
 
- There are now two versions: the standard version and an alternate version that does not replace the standard chainsaw with a double bladed version. Weapon purists rejoice!
 
- Corrected the description of Odamex's compatability issues with this mod. The only broken thing in Odamex is the morter zombie morters

The New Monsters:

Nightmare Imp (map object 3007):

Crossing over from DOOM64. A faster, harder to see Imp with faster fireballs.

Nightmare Spectre (3008):

From the PS1 ports of DOOM. Its another species of Pinky that has twice as much health. Gets all the nasty Nightmare difficulty buffs as standard Pinkies.

Beta Lost Soul (3009):

Its the old beta version of the Lost Souls. Only with remastered sprites, more coherent animations, and they can sometimes miss.

Melee Revenant (3010):

This Revenant seems to have lost his rocket launcher armor, so he runs faster to compensate. Will not infight with standard Revenants.

Pistol Zombie (3011):

An alternate spriteset for the standard zombiemen for level developers that think seeing them wield a pistol is more immersive. Uses AI and stats identical to standard zombiemen.

Harkubus (3012):

The Mancubus's much stronger brother. Will not infight with Mancubi.

Rocket Zombie (3013):

A zombie with a rocket launcher. Luckily he's slow and his rockets are only half as powerful as the player's/Cyberdemon's.

Morter Zombie (3014):

Launches bouncing morter bombs. Their clumsy aim is easy to avoid but devastating.

Flesh Spawn (3015):

A small flying mouth. Mimics the AI of Heretic gargolyes.

Chaingun Spider (3016):

Oh joy, a hitscan version of the Arachnotron. At least you get a box of bullets for killing them.

Watcher (3017):

Think of them as flying imps. Or a small, weak Cacodemons.

Zombie Marine (3018):

A lore friendly AI clone of the SS Nazis that appear in DOOM2's secret levels. Not as menacing as Chaingunners but not as pathetic as standard Zombiemen.

Chainsaw Zombie (3019):

A zombie with a chainsaw. Total cannon fodder but can be dangerous if they catch you in a corner. Gets a movement speed boost on Nightmare difficulty but not an attack speed boost.

SSG Zombie (3020):

Wielding a double barrel shotgun but frail, he's the ultimate glass cannon. Drops a super shotgun when killed.


Spreadgun Zombie (3021):

This prick must have loved playing Contra when he was alive. Or maybe he was a Probotector fan...

Wargrin (3022):

A strange mutant demon that isn't too tough but comes armed with a primitive plasma gun. His red plasma is slower and weaker than the player's plasma but it can bounce off floors and ceilings so beware.

D64 Arachnotron (3023):

A recreation of the DOOM 64 version of the Arachnotrons. Fires pairs of smaller plasma bolts, taking a pause every fifth shot or so. Will not infight with classic Arachnotrons.

Hindring (3024):

These demon dogs are slightly weaker than Pinkies but can perform lunging attacks from a distance. Gets a movement speed boost on Nightmare difficulty but not an attack speed boost.

Grell (3025):

Another flying creature that uses a spreadshot attack. Closely mimics the AI of Heretic's Disciple of D'Sparils (flying wizards).

Super Demon (3026):

A not-so-cyber giant demon. Sits in between Barons and Cyberdemon's in toughness. Has a powerful fireball and the ability to create Lost Souls. Doors tagged 666 will open when all Super Demons in a stage are slain, similar to Commander Keens.

Hellion (3027):

A fast, low tier demon that likes to spam weak homing projects. So kill them quick.

Wall Lights (Map objects 90, 91, 92, and 93):

Not really enemies, but adds a missing style of decoration objects to DOOM.

Devil Imp (3028):

I got several requests to make the Nightmare Imps tankier, but wanted to keep their stats accurate to DOOM 64. So instead here is a tankier, but still quite low tier, breed of Imp.

Sawcubus (3029):

A reference to the DOOM RPG mobile series. A pinky strength monster wielding a strong chainsaw.

Cacodevil (3030):

A stronger, rotten tomato that aggressively spits giant energy balls.

Pandora (3031):

The good news is these strange cubes can't directly attack you. The terrible news is they have the Arch-Vile's ability to resurrect dead monsters!

Nailgun Zombie (3032):

A somewhat tough zombieman that like to shoot volleys of spiked projectiles that rip through their victims.

Phantom Spawn (3033):

A flesh spawn with partial invisibility, so the Spectres wouldn't feel so lonely in the dark.

Alpha Demon (3034):

A real brute that can take a heavy beating and has a hard hitting dash attack.

Dark Squire (3035):

If the Hell Knights were half Baron, these guys are half a Hell Knight. Because clearly there weren't enough palette swap baddies already...

New Decorations (97 through 111):

A few more props to decorate your maps with.


Additional Changes:

- Spectres, Lost Souls, Cacodemons, Hell Knights, and Barons now have custom blood splatter colors to match their death sprites/theme.
- Pinkies, Spectres, Cacodemons, and Mancubi can be gibbed (can be difficult to trigger on some source ports).
- Chaingunners use the N64/PS1 zombie sound effects for added variety.
- Due to being the only underpowered DOOM weapon, the chainsaw has been upgraded to a double bladed version with a higher attack speed. No other weapon has or will be changed. (Yes, the pistol is underpowered, but it is supposed to suck).

Installing the DOOM Builder Plugin:

Simply drop the contents of the ZIP file into your DOOM Builder folder. Should work with most versions of DOOM Builder (GZDOOM Builder, Ultimate Builder, etc). New Game Configuration options that support the MEDB things should become available the next time you load up the tool. GZDoom configurations don't need a special version since all the new enemies will appear under the DECORATE things tab. See the screenshots for more reference.

Big List of Credits:

Superdave938:
Revamped Beta Lost Soul sprites

Osjcletchford:
Gibbed Demon sprites
Gibbed Revenant sprites
Gibbed Mancubus sprites

CaptainJ:
Morter Zombie
Gibbed Cacodemon

Dr_Cosmobyte:
New Chainsaw sprites

00_Zombie_00:
Melee Revenant sprites

JoeyTD:
Pistol Zombieman Sprites

Nmn:
Harkubus Sprites
Wargrin Sprites
Hindring Sprites

The Innocent Crew:
Rocket Zombie Sprites

Vader:
Flesh Spawn Sprites

ShallowB:
Nightmare Imp Sprites (New palette by MObreck)

Captain Toenail:
Chaingun Spider Sprites
Wall Torches (Both tech and hell style)

Eriance:
Watcher Sprites
Grell Projectile
Hellion Sprites

Ixnatiful & MadGamerDimchik:
Zombie Marine Sprites

Solmir, Scalliano, and TSran908:
Revamped Chainsaw Zombie Sprites (New palette by MObreck)

Xim and TSran908:
Super Shotgun Zombie (as Sawed Off Shotgun Zombie)

NMN and Tormentor667:
Spreadgun Zombie (as RapidFireTrooper)

Jimmy and MObreck:
Doom64 Style Arachnotron

Molten Ice, Xim, David G, Craneo:
Super Demon Sprites

Captain J, aeea7835, Eriance, ItsNatureToDie, Midway Entertainment, Kinsie:
Sawcubus Sprites

Amuscaria:
Devil Imp Sprites

TSran908:
Nailgun Zombie Sprites

Alpha Dog Alliance Team:
Pandora Sprites (as Polydrone)

Chainie:
Cacodevil Sprites

Neoworm, Vader, Amuscaria, hnsolo77, Tsran908, Gothic:
Alpha Demon Sprites (as Cyber Fiend. Palette swapped by MObreck)

Gothic:
Ripping and tweaking the Jaguar DOOM hanging corpses

Jimmy:
Small ceiling lamps

MObreck:
Recolored sprites for Nightmare Spectre

Cooper B. Chance:
ripped the PS1 DOOM sound effects 

Vader and Blizzard:
Flesh Spawn sound effects

Croteam and PS1 DOOM:
Chaingun Spider sound effects

Eriance and Blizzard:
Watcher sound effects

3D Realms:
various sound effects (mostly from Duke Nuke)

Id Software:
Various Quake Sound Effects

Unreal 1:
Additional enemy sound effects

Konami:
Spreadgun sound effect (From NES Contra)

Real koala mating call samples and Epic Games(Unreal 1):
Hindring sound effects

Spectere:
Beta testing and video playthrough