Contagion isn't your average Zombie Shooter but instead takes a more realistic and different approach to the popular genre with unique characters, environments, weapons, items, and a built in system that makes every round completely unpredictable with resources, objectives, and paths ever changing.
Recent Reviews:
Mixed (35) - 54% of the 35 user reviews in the last 30 days are positive.
All Reviews:
Mostly Positive (7,854) - 74% of the 7,854 user reviews for this game are positive.
Release Date:
Oct 25, 2013

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Includes 2 items: Contagion, Contagion OST

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Recent updates View all (259)

September 21

Contagion September Status and Discord for finding players!


Hey all! I hope you all had a great summer! Some of you may be wondering, we did end up releasing Contagion VR: Outbreak on June 29th and it was a crazy launch.

We had a Loyalty Discount for all Contagion owners at 15% for two months. Launch discount was 10%, so basically all Contagion owners got Outbreak for 25% off at launch.

If you have any questions, just ask below! I'll answer pretty much almost anything :steammocking:

Current Dev Team

Just want to recap a few things here. The new dev team was brought on for Contagion VR: Outbreak, not for Contagion. I and most of the new development team are Unreal Engine 4 developers, and we had nothing to do with Contagion or Source Engine.

Even so, I didn't mind trying my hand at it in my free time and seeing what I could do. It didn't go so well, the docs are practically non-existent, the engine itself was archaic. A grand mess. We tried to even get some of the old programmers to jump in and help, but that was a bust.

So what now?

We are still focusing our efforts on Contagion VR: Outbreak, since that's what we came on for.

But, we'd like to see about getting some talent onboard that will focus 100% attention to fixing Contagion's bugs and polish up other areas.

Source Engine Programmer

If you have worked with Source Engine before, please fill out this form:

(copy/paste it into your browser... Steam is blocking it)

We'll get back to you if you're the right candidate to tackle this job.


I just wanted to iterate this. I know some of you are mad that the game hasn't been updated in what seems like forever now. No matter the excuse, you are all entitled to your opinions.

Is the game dead? Only if you want it to be. There are PLENTY of players that own this game. A lot of opportunities to get together and play the game.


Join us on our Discord and visit the Contagion channels (after opt-in)

Meet over 1500+ fellow Survivors
29 comments Read more

May 22

"So WTF is going on" Update

So, real quick. We haven't forgotten about Contagion. However, Outbreak is releasing next month, so it's been quite busy and all of the attention has been on it.

A few months back, I did have a little bit of time on my hands and actually tried to update the game. However, I ran into some issues and was unsuccessful.:steamfacepalm:

We got ahold of the original programmer to get his workflow and see if there was something I was doing wrong, but we couldn't figure it out at the time (also, he had been out of the game for awhile).:steamsad:

You can watch dev streaming of Outbreak through Twitch or YouTube:steamhappy::


Also, every once in awhile during streams I will be providing Contagion keys, so if you don't have one, jump in and chat. If you do, grab one for a friend.

Once things slow down for Outbreak, we'll go ahead and take another crack at updating Contagion. Sadly, we don't have anyone dedicated (and really can't afford it right now) to OG Contagion.

I just realized that my head has been down in the sand (I rarely have any spare time) and it's been 4 months since the last update. Time flies. I know you've probably heard this song and dance before but I know from the bottom of my heart that we wish we could clone ourselves and work on both games at the same time. But we can't :steamsad:

Post Responses

9/21 - Haven't been on here for awhile. I was NOT on the original Contagion dev team. I was brought on for Contagion VR: Outbreak, and that's it. So is everyone else on the team.

The fact that I was planning on doing something in my FREE spare time to get this thing back on track, was just that...a plan. Source Engine is old as hell, like so old... I am an Unreal Engine 4 developer first and foremost.

So, yeah, plan failed. I am very open and honest, so I tell it how it is.

Many of you don't understand game development or programming, and as a consumer you don't have to.

You all have the right to be mad that the game was not maintained after awhile. No one is trying to take that away from you all.

Just have some patience and empathy. All I am asking.

73 comments Read more

About This Game

What they're saying about Contagion

"Contagion aims to save the zombie game genre from itself" -GamesBeat
"Contagion does have a small role to play in the great gaming zombie apocalypse. I quite like it." -RockPaperShotgun
"Contagion is a gory, addictive horror game that’s well worth its $20 price tag" -Bloody-Disgusting
"Contagion presents a tense survival based horror game" -Canadian Online Gamers
"Barlowe Square is one of the best levels featured in a multiplayer game" -Hooked Gamers

Dynamic Gameplay

- Each play through is never the same with our built-in randomization system that changes the game/round each time you play!

State Of The Art Gore

- Our advanced gibbing system will immerse you into the game with limbs and organs being blown or hacked off!

Immersive Sound Effects

- Realistic ambient and sound effects that instantly draw you into the games dark apocalyptic atmosphere!

Traditional Zombies

- Slow moving undead that can only be truly laid to rest with a bullet to the brain or enough wasted lead in their body wasting away the ability to function.

Extensive Survival Equipment

- Over 28 vital pieces of equipment from a large selection of firearms, melee weapons, don't forget explosives, support items, tools, and much more to be added!

Unique Game Modes

- Choose from a multitude of classic and new game-modes that require co-op and survival skills in which you escape, extract civilians or hunt each other! Not to mention our Panic modes, upcoming Flatline (Survival) mode and more!

Stop paying more

- We will be releasing new content and 2 DLC Bundles in 2014... For Free! This was decided in 2010. Once you own Contagion you will never have to pay for updates or DLC bundles we develop for it... Ever.

System Requirements

    • OS: Windows® 7 32/64-bit / Vista 32/64 / XP 32/64
    • Processor: 2.4 GHz Intel Dual Core Processor
    • Memory: 4 GB RAM
    • Graphics: DirectX® 9 compatible video card with 256 MB, Shader model 2.0. ATI X800, NVidia 6600 or better
    • DirectX®: 9.0c
    • Hard Drive: 7 GB HDD Space
    • Sound: DirectX 9.0c Compatible
    • Hardware: Mouse & Keyboard
    • Other Requirements: Broadband Internet Connection
    • OS: Windows® 7 64-bit / Vista 64-bit / XP 32/64
    • Processor: 2.4 GHz Intel Dual Core Processor
    • Memory: 8 GB RAM
    • Graphics: DirectX® 9 compatible video card with 512 MB, Shader model 3.0. ATI X1600, NVidia 7600 or better
    • DirectX®: 9.0c
    • Hard Drive: 7 GB HDD Space
    • Sound: DirectX 9.0c Compatible
    • Hardware: Mouse & Keyboard
    • Other Requirements: Broadband Internet Connection

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