Contagion Theory is a cooperative sci fi horror adventure following the settlements located on planet Obsidian' Built on the Darkplaces engine this standalone game will feature vast futuristic settlements shrouded in thick fog and decay as it's halls are now deathtraps by parasitic organisms and your human friends fallen host to them'


* Sci fi atmospheric feel with singleplayer-esque horror tension
* Ability as a parasite to use corpses as your host and re-animate their bodies
* Realistic HUD and death messages replaced by radio chatter for commandos
* Random Objective Generator, no one round will ever be the same
* Random monster spawner, not every corner is as safe as you thought'
* Weapon Customization / Organic Upgrades
* Server side rank saving and basic user customization


The year is 2040, space exploration is underway and the world's superpowers are in a race to capture the last known frontier, and definitely the biggest, space' As the race ensues each superpower sends based on available resources and usage on the plan a set of settlers such as doctors, mechanics, and other useful citizens with skills applicable to the planet' Along with these citizens to protect them from industrial sabotage or any other attacks are Extermination Crews which oversee the settlers when they are outside of the base and retreat back to the settlement and stand guard' Obsidian is a dense, barren planet with no signs of life on the surface, a thick red fog due to the extremely high amounts of iron found in the atmosphere and embedded into the surface' Importance by the superpowers is based on how lucrative a settlement is in finding something to make them money' Thus mining was considered one of the few things capable that may turn up some profit' Mining, like the terraformation of the planet and settlement construction was quick and sloppy' Destroying entire cliff faces and laying havoc to the Obsidian surface' Soon many miners disappeared, but the settlers did not have the man power to send out a search party' Once in a while a miner was found wandering the desert lands, and was found hostile on contact' Upon further evaluation of the miners a rather large parasitic creature was found grappled to the upper spine feasting upon the host's gray matter' All blood within the body was somehow removed or consumed by the parasite however to keep the muscles alive they are stimulated by a complex web of tentacles within the body sent out from the parasite' Due to Obsidian's lack of profit and the superpowers' haste in settling new planets the settlements had to fend for themselves from a barrage of attacks most likely caused by the sloppy excavation of the mines'

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Officer Concept New Parasite WIP More Revised Officer WIP
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2 comments by BlueWolf72 on May 1st, 2007

As you can see we are working on the HEAD of the officer for CT. Thanks to all the support and emails and pm's with ideas I am loving the support.

We, could use you and your talent (IF YOU MAP) we need 2 maps for the release and we are willing to supply a nice prize for your work.

Youll need to use the editor gtkradiant 1.4.0 q3 ver

Post comment Comments  (0 - 10 of 55)
azultain Jan 3 2009 says:

i have voted for your game (dead?)

+1 vote     reply to comment
NSCXP2005 Dec 2 2008 says:

does anybody know if this game is still being worked on?

+1 vote     reply to comment
Robots! Oct 16 2008 says:

great models, concept art, i can see this as being a great game.

+1 vote     reply to comment
Berserkr Oct 18 2008 replied:

I can see this is a dead game.

+1 vote     reply to comment
Robots! Oct 20 2008 replied:

then how did it get updated

+1 vote     reply to comment
Robots! Oct 16 2008 says:

its a game

+1 vote     reply to comment
NSCXP2005 May 15 2008 says:

do you know if this mod is being continued?

+1 vote     reply to comment
pvt.Johnson Feb 18 2008 says:

What kind of support do you need?

+1 vote     reply to comment
NSCXP2005 Feb 18 2008 says:

is this mod still being developed?

+1 vote     reply to comment
BlueWolf72 Creator
BlueWolf72 Feb 3 2008 says:

Update is once again I didnt get the support I needed to finish.

+1 vote   reply to comment
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Contagion Theory
Contagion Theory
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6 years ago
230 members