List of Great Doom 3 / III Modifications tutorial (2025)

Check out what the talented Doom 3 community has created over the years.

Finished Doom 3 and the expansions but you're still hungry for more? take a look at what the talented Doom 3 community has created over the years. This is just a short list of mods I thought were worth checking out, there's many more out there worth checking out, If you know of any others, post 'em in the comments section below so we can add them to the list!

You can find more maps and mods here, here, here, here and here

Also check out RoE sections here and here

Before you begin:

Here's some handy links to some useful tools before you begin:

2004 Edition of Doom 3 - I recommend using this edition of the game instead of the BFG Edition, since these mods are designed for 2004 edition and BFG Edition does not support mods.
1.3.1 Patch - If you have a CD-Retail version of the game chances are you haven't yet updated it to 1.3.1, most mods require this version of the game to work properly, use this patch to update your game to 1.3.1 if you haven't done so yet.
UAC Explorer - a server browser and file downloader for Doom 3, use it if you're having issues with the in-game server browser like crash or something.

Patches and Bugfixes:

The following modifications are patches that fix some issues in the default game without heavily changing it, If you're having issues running mods or just running the game properly, you might find something to fix it here:

Doom 3 Enhanced Edition - Recommended if you want to enhance the experience while keeping the spirit of the game as close to the original as possible.
run13on131 - a patch that lets you run mods designed for version 1.3 on version 1.3.1 of the game, extract it inside the mod's folder.
Widescreen Resolution fix - simple, easy to follow methods for enabling widescreen resolutions on the 2004 edition of the game.

Source Ports:

Engine improvements and enhancements, while mod and multiplayer support are limited in these ports, they are still useful if you are having issues with the official game.

dhewm3 - A non-BFG Doom 3 Source port which features several bug fixes and new features without affecting the gameplay like in-menu widescreen options, due to some engine changes it does not support mods that include their own .dll files, unless they are ported to work with it.

Gameplay:

Modifications that change the gameplay, introducing or improving the mechanics, weapons ... etc

Doom 3 Evolution - a mod that adds more depth to Doom 3's gameplay, introducing an RPG-flavor to the game (new maps included)
Duct Tape
YAFM - Yet Another Flashlight Mod
Phrozo
Classic Shotgun
Double Long-Barreled Shotgun (Resurrection of Evil)
Chaingun Fix
Perfected Doom 3
InstaOwn - Instagib
Infernal Death Orgy
Ninja Tournament
Gunman's Mod
Overthinked Doom 3

Singleplayer Levels:

The following modifications add extra levels to the game. Good for a quick run:

Doom 3: TSM
CTT
Scientific Base UAC
Erebian Vaults
BJA: Lost Facility
BJA: Genetic
Gatehouse
Obi-Wan MAP01
Trite Breeding Facility
The Sigma Core
Once Upon a Time
Evacuation Protocol
TEH Base
Omega Researdh Facility
Lost Underground
Junon
Service Rooms
Omicron 1
Hellgate
Demon Genes
Last Hope
Alpha Labs Sector 5
Investigation
Bio-Labs
Gamma Labs
Gamma Labs 2
DCTPP
Oxygen Factory
T-lab Complex
UAC Franchise 666
Urukhai
Executive Quarters
Make It To Morning MITM (Resurrection of Evil)
Cramped Waste (Resurrection of Evil)
Chapter 1: The Tower
Delta 6
E2M4 Deimos Lab (Resurrection of Evil)
Redwill Manor
a Place of Malice (Resurrection of Evil)
CodeReD (Resurrection of Evil)
Nightmare Burrows (Resurrection of Evil)
Kings Cemetery
Insomnia

Level Packs:

The following modifications are campaign-style mods that add more levels to the game without changing the gameplay (or at least not changing it too much):

ELDoom
Tested (Resurrection of Evil) (Hard)
Make it to Morning (Resurrection of Evil) (Full Pack)
Escape from Enemy Mountain
Event Horizon XV13
Hallowed
Endarchy
In Hell Director's Cut
Pathways Redux
Pray for Pain
Doom 3 Phobos

Total Conversions:

The following modifications change multiple things, some change the art style, some change the gameplay, some change both, all of these include new levels aswell, often with brand new stories:

Arx End Of Sun
The Dark Mod
Monkeys of Doom - Cel Shaded Adventure
DungeonDoom
Doom Chronicles
Classic Doom 3
Hell in Time
Chex Trek: Beyond the Quest
Fragging Free (Resurrection of Evil)
Hexen: Edge of Chaos
Quake 2: The Lost Mission
Quake: Shambler's Castle
HardQore 2
Z-Hunter
Zombie Slayer
Grimm: Quest for the Gatherer's key
Desolated: The Crying Fate
Torn
Rivensin
Atlanten
Blade Yautja
Prometheus
Phantasm

Multiplayer:

Modifications that are designed for Multiplayer:

Doom 3 Splitscreen Edition
Enhanced Militarized Zone
OpenCoop
OpenCoop Unofficial Expansion Pack
Last Man Standing Coop
LMS Mod Extension by TA_Alucard
Mars City Security
Into Cerberon
Stupid Angry Bot (SABot) (Resurrection of Evil) - If you don't have friends to play Multiplayer with you can still try it with bots.
32 Player Multiplayer

Multiplayer levels:

If you have a friend or two, or wish to organize a competitive multiplayer session you might find the next community-made Multiplayer levels fun:

Visual enhancements:

Modifications that improve or change visual and graphical fidelity of the game:

D3HDP - Doom 3 Essential HD Pack
Absolute HD (Sikkmod included) (Includes a few small gameplay changes)
Doom 3 Hi Def (Arl's Improvements included) (Big File size)
Sikkmod
Doom 3 Redux
Arl's Improvements

Miscellaneous:

Modifications that don't fit in other categories:

Ungibbable
Nitrogore
Denton's Enhanced Doom 3
Cel Shader
Terminal DOOM

Sources:

Gamebanana, Gamefront, Doom3world (archived), Doom 3 Park. and of course Moddb.

(more will be added later)

Great Doom 3 Mods