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D3 MCS: Mars City Security (Public Release Download)

Started by oneofthe8devilz, June 05, 2014, 03:56:21 PM

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Good to see you back. Can't wait for the next release.
Get the latest on Perfected Doom 3 here -


MCS 2018 Online CTF Multiplayer with Bots

"Development on the project keeps going strong as two major components for MCS have been successfully merged and implemented.

Bots in MCS now fully cooperate with the recently added CTF gametype and in combination with the mod's netcode optimizations, players now finally will be able to experience thrilling new butter-smooth clientside gameplay completely independent of the current Doom3 online player-base-count."

I got six little friends and they all run faster than you ;)

Check out our mods at
moddb or the SPS Homepage


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

-==November 2019 Public Release==-

Mars City Security Version Build Public Release Download

MCS Windows XP/7/8/10 Installer (950 MB)

MCS Windows XP /7/8/10 & Linux AllOS Installerless Archive (947 MB)

MCS ReadMe.txt


Quick Description:

Taking Doom³ PVE / PVP / PvPvE multiplayer combat to a new level...

Mars City Security version continues where version left off by adding crucial new features such as Windows/Linux online Cross-Platform-Multiplayer PVE/PVP/PvPvE support.

Also the fundamentally vital Multiplayer-Bot-Support has been successfully integrated into the MCS codebase and is compatible with the gametypes "TeamDM", "DemonWars" and the newly implemented "CTF" capture the flag gametype.

Bots can now simply be added by players via server vote. In total 21 playermodels are now select-able to be played as with a wide variety in ethnicity, age and gender.

A great new variety of custom campaign maps and previously unplayable stock campaign maps have been fixed and made available to be played cooperatively across the network/internet.

Over the past years countless QOL Improvements and Bugfixes went into this build and we hope the players will enjoy it at least as much as we did while developing it.
I got six little friends and they all run faster than you ;)

Check out our mods at
moddb or the SPS Homepage