Taking Doom³ PVE (Coop) and PVP (Deathmatch) multiplayer combat to the next level and beyond...

D3 MCS: Mars City Security is a Doom3 Modification that puts heavy emphasis on cooperative and adversarial multiplayer, merging the fast and addictive gameplay of the predecessors (Doom1 & Doom2) with the enhanced Doom3 technology (optimized netcode, improved idtech4 unified rendering).

The "Campaign" PVE (Coop) gametype lets players play through default & custom created campaign missions with up to 4 players cooperatively. Experience community made custom maps with your friends that tell stories never before experienced in the Doom³ universe...

The "DemonWars" PVE (Coop) gametype throws players right into the epic battle that broke out throughout the entire solar system after Hell has been unleashed. Fight as a human with up to 4 players cooperatively against the hordes of hell trying to make a last stand for mankind.

The PVP (Deathmatch) gametypes let up to 8 players fight it out on a variety of arenas for the ultimate player versus player domination in "team" and "free for all" adversarial multiplayer.

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0 comments by Oneofthe8devilz on Jul 29th, 2015

Mars City Security:

Taking Doom³ PVE (Coop) and PVP (Deathmatch) multiplayer combat to the next level and beyond

Credits to the amazing Doom3 Community members that make MCS possible

-==July 2015 Update==-

Hello fellow space marines,

last night was group screenshot time on the SPS servers with different MCS "Delta Squad" personnel shots taken at different locations throughout the MCS facilities. The point was to showcase MCS's versatility in terms of player models and locations choice.


Additionally to the screenshots here follows some background information about the MCS "Delta Squad":



Also in order to be able to announce and communicate live streams of the latest MCS development builds more efficiently to you, a Twitter Account has been created that you can follow. That way shortly before a stream goes live, every follower will be notified on time.

Simply visit and follow my Twitter Account to never miss a live MCS broadcast again.

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Post comment Comments  (10 - 20 of 78)
lukeman3000 Jun 14 2015, 7:53pm says:

Hi; So, I'm trying to figure out what are the main differences between this and something like OpenCoop or LMS? Could you highlight the major "selling points" for me?

Also, please tell me this will incorporate sikkmod as well as wulfen/monoxead textures!

+1 vote     reply to comment
Oneofthe8devilz Creator
Oneofthe8devilz Jun 15 2015, 12:18pm replied:

I would say the two most distinctive features of MCS are the upgraded visuals and the new netcode...

There is plenty of image and video material within all the MCS moddb news articles which should give you a good overview of what to expect with this multiplayer focused project...

And Yes, MCS incorporates a version of Sikkmod that actually works in multiplayer (to my knowledge so far the "ONLY" D3 Mod that has the Sikkmod effects operating in a multiplayer environment)...

+1 vote   reply to comment
lukeman3000 Jul 4 2015, 2:51am replied:

So in other words, if I'm interested in playing through Doom 3 cooperatively, this will be the "definitive version" of the co-op campaign experience, so to speak?

+1 vote     reply to comment
stranger2279 Jun 11 2015, 5:01am says:

Exciting job but I'm worry if it has a marine skin? I mean Sgt. Kelly armor (or default multiplayer coloured skins). It's been cut from all of 1.3.1 allies mods I've tried.

+3 votes     reply to comment
Oneofthe8devilz Creator
Oneofthe8devilz Jun 11 2015, 7:59am replied:

Yes... multiple marine skins will be available for selection...

+3 votes   reply to comment
BathySalts Jun 2 2015, 8:14pm says:

Will we see a release this year? The improved gameplay, nicer visuals, and cooperative focus has my friends and I excited.

+1 vote     reply to comment
Oneofthe8devilz Creator
Oneofthe8devilz Jun 11 2015, 7:58am replied:


+2 votes   reply to comment
R0ADKILL Apr 5 2015, 11:21am says:

Will you implement non disappearing bodies, it sucks that it wasn't in vanilla D3 it broke the imerssion :)

+1 vote     reply to comment
Oneofthe8devilz Creator
Oneofthe8devilz Apr 17 2015, 6:59am replied:

For performance reasons I am keeping disappearing bodies, but they lay around quite a while before they disappear...

+4 votes   reply to comment
R0ADKILL Apr 28 2015, 3:54pm replied:

Good to hear they will stay a bit longer :D

+1 vote     reply to comment
belmar Mar 28 2015, 7:30pm says:

this mod is amazing, i want compile the soucre code, but i don´t know how do it, my mod is called "alien 4: resurrection for doom 3", i need help for compile the code, can someone help me? i have windows 7 32-bit, this will be my first mod

+1 vote     reply to comment
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Mars City Security
Mars City Security
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