This is a port of the BFG Edition campaing 'The Lost Mission' for 2004's Doom 3 release.

(Resurrection of Evil expansion pack is also required).

Download Doom 3 The Lost Mission - Mod DB

Diferences with the original BFG Edition version:

-Reworked intro and ending cinematics.

-No more mounted flash light.

-Ammo, health and armor pick ups now give as much ammount as they did in 2004's Doom 3, so you're not going to get as much of those as you get in BFG Edition.

-Voices and audio logs can be listened properly, unlike BFG Edition where ambient sounds makes every other audios difficult to hear.

-Player model and Armor item now corresponds to a Bravo Team marine.

-Deleted or changed several clip brushes so the movement of the player has less restrictions. For instance, you can now jump over railings to your death if you want to.

-Fixed a lot of map stuff like areas where you could get stuck, texture issues, visual glitches, etc.

-Underground2 sentry bot now activates its flashlight when entering its route.

PD: Source code for mod gamex86 file is included and free to use.

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This 1.2 release fixes most of the common issues that got reported previously.

Doom 3 The Lost Mission


-Added missing sounds (hopefully all of them).

-Fixed, improved and expanded localization. (thanks IlDucci)

-All sounds have been revised and converted properly. (thanks IlDucci)

-Intro text font is now like the original BFG Edition version. (thanks IlDucci)

-Added missing models.

-Rechecked all maps and fixed whatever texture/light/brush/AAS/entity/collision issue I could found.

-Removed all check points and achievements entities.

-(Underground 1/2 map) Added a light models that were previously rendering like black boxes due to the model absence.

-(Underground 2 map) Added a flashlight to the sentry bot, as sentry bots in regular Doom 3 tend to have.

-(Underground 2 map) Fixed the cave chamber where you couldn't return from when you came from because of the cave model blocking the entrance from the inside out.

-(Underground 2 map) Fixed some big pipes that weren't touching the ground and were floating in a pit. (issue already present in the original version).

Don't forget to comment and report any other problems you may find.

About Dhewm 3 compatibiliy:

I've been asked for compatibility with the source port Dhewm 3. This has been asked in its official Github page and work had been done for this to happend. You can follow that work here.

That's it for now.

Some fixes and language options

Some fixes and language options

News 1 comment

I've updated the file to the beta 1.1 version. This fixes several sound problems, makes the player start the campaing with half the health (as in the...

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Doom 3 The Lost Mission

Doom 3 The Lost Mission

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The Lost Mission campaing for the original 2004 Doom 3 release. (You need Resurrection of Evil expansion pack).

Comments  (0 - 10 of 55)

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Hi just a quick bug report. I've been loving the work done for this mod especially having played The Lost Mission in the BFG Edition recently.

The only issue I've encountered is that for whatever reason switching to the Shotgun will cause the game to automatically switch to the Super Shotgun. The same thing happens with the pistol and the grabber. I have no other mods installed.

Steps to recreate: run .bat, new game, type "give all" in console, press "2".

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This is great for people who own the original doom 3 rather then bfg edition

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Will this mod be updated to fix the maps and other bugs or should i use the latest fix version by Dafama2k7?

BTW, is it normal that Lost Mission is so bright? Shouldn't it be darker since its now a mod for original Doom 3?

Idk it just seems brighter.

Thank you for all your hard work you are doing on Doom 3/ROE!

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Arl. Creator

Hi there,

I'm working on an update, although some reported problems happend to some people and so others don't, so it's difficult to tacke some of them since I'm unable to reproduce the issues myself on my end.

I don't know about the brighter stuff, I actually see it darker than in BFG Ed. Have you tried to change your brighness settings?

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My apologies for the late replay! Interesting.
I have not played your port of the Lost Mission yet. Reason being that i read here that the port has issues and bugs, so that's why i asked you if there will be an update. Don't worry about the brightness, i'ts probably fine and i'm just seeing things.

Take your time with the update i can wait. After all your mods are always top quality i installed OG Doom 3 and your improvements mod as well as Alpha Shotgun mod and they are amazing! It's like ti's 2004 again but better, obviously, lol. So thank you for your hard work!

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Any plans to make this compatible with the Perfected Doom 3 mod or the Overthinked Doom 3 mod?

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Arl. Creator

I think those mods should be made compatible with this campaing, and not the other way around.

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hi there, i tried to convert italian voices...

when i convert
rhodes_enpro1_pda_01.wav into rhodes_enpro1_pda_01.ogg
it works

but when i convert rhodes_enpro1_pda_02.wav
into rhodes_enpro1_pda_01.ogg

it doesn't work anymore... do you know why this error happens ?

i click on audio log in game but i get no sounds

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Arl. Creator

I'm not sure if this is your issue but the names aren't the same:


I'm thinking that maybe there's a problem with the name in the .sndshr files or that the .ogg is not 16 bits.


"Valid sound files are 1 or 2 channel, 16 bit OGG or WAV files at 11025, 22050 or 44100 Hz. "

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