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. From the creator of Zombie Panic: Source Brian "Tatsur0" Comer we introduce it's spiritual successor.

Post news Report content RSS feed Contagion - Update with new weapon, optimization, and restructuring

Contagion which is now on Steam as "Early Access" received a large update focusing on restructuring the build using VPKs cutting it down 1GB, with other updates focusing on optimization, performance, and stability as well as a new weapon.

Posted by Tatsur0 on Nov 12th, 2013

We appreciate everyone's patience and as promised have focused on optimizing the game further. We've cut off roughly 1GB, increased load speeds, and should be more stable on more machines. Files have been compressed into VPKs for the benefit of the users and while this requires one large update now, future updates will not be as painful.


  • New Weapon Added the Machete
  • Optimized rendering code
  • Recompiled Shader code with latest C++
  • Optimized Post Processing Shader commands code
  • Improved and Reworked Gibbing System
  • Included Gibbing for 9mm Headshots
  • Optimized sound occlusion for Zombie AI
  • Optimized sound bank-file loading for memory
  • Fixed memory leak on game exit not unloading memory allocated by large bank files
  • Removed occlusion and obstruction from ambient sounds, now using pre-calculated occlusion
  • Obstruction and occlusion added to player weapons and mobile ambients
  • Optimized zombie positional update code for sounds
  • Included new ambients sounds and overall theme for Roanoke Police Dept.
  • Fixed Roanoke Police Dept. navmesh for many trouble areas
  • Optimized Roanoke Police Dept.
  • Improved detail and fixes to Roanoke Police Dept. scripts and navigation
  • Updated and Improved Roanoke Police Dept. assets
  • Updated collisions on railings to avoid zombies getting stuck
  • Updated Aurora Estates level and navmesh
  • Added Skylight to attic in Aurora Estates
  • Added 6 minute timer for Hunted mode for last 2 players to finish each other off or end with a draw which leads to 0 points accumulated

We are still looking into Nvidia issues, crash bugs, and further optimization. Unfortunately none of these issues were brought to light until we released "Early Access" so we need your help tracking down the problems.

If you're having issues please visit our Troubleshooting Forums and provide the following:

  • Full Error in detail (what you were doing when the trouble occured, what if any message did you get, any other visual cues?)
  • Full System Specs
  • Any Crash Dumps
  • What have you tried thus far?


We will be streaming on our Twitch.Tv Account at-
every Friday @ 7:00PM PST/PDT (GMT- 7:00) -Click here for current time- and will pass out one or more free copies of Contagion during the Stream!

Next week we'll be focusing on further optimization and bugs as well as releasing a new Firearm. Maps will come in due time.

-The Contagion Team

Post comment Comments
88Raven Nov 12 2013 says:

Nice work but the loading times continue to are too long...
And every time i change video options and join in a server my game crash.
Another question... how to remove the old movie effect?
PS: sorry for my bad english

From a old ZP player :)

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Tabajara77 Nov 12 2013 says:

Excellent work guys. Keep up with good optimization, the game really needs it!
And please, after Full or some Contagion updates, give ZPS a 'hand/support'. It's our best and favorite zombie-survival mod. :)

+3 votes     reply to comment
HippieMan227 Nov 12 2013 says:

Wait, so if I buy the early access, do I have to pay for it again when it officially releases?

+3 votes     reply to comment
Tabajara77 Nov 12 2013 replied:

I don't think so.

0 votes     reply to comment
Tatsur0 Author
Tatsur0 Nov 13 2013 replied:

No, it's a full copy of hte game just early access discounted price

+1 vote   reply to comment
HippieMan227 Nov 13 2013 replied:

Thanks, just one more question. Is it not available for mac on Steam, or will it come later? Here it says Windows, Mac, Linux, but Steam only has a Windows option.

+1 vote     reply to comment
AudioGhostX Nov 12 2013 says:

Anyone wanna buy me this? :D

+3 votes     reply to comment
go0der Nov 12 2013 says:

Just mentioning the word shaders makes a party in my pants

+2 votes     reply to comment
Renay Nov 12 2013 says:

I have increased loading times and horrible freezes after the update, first game I got in after loading 10 mins I got disconnected from for no reason. Second game I got in after loading 10 mins I got freezes so bad that I had 0.0012 Frames per second. Dunno what it is, it worked perfectly fine before, I'm gonna try again tomorrow and see if it's still the same, then I'm going to troubleshooting forums with my specs :(

+1 vote     reply to comment
Tatsur0 Author
Tatsur0 Nov 13 2013 says:

Fortunately the majority of users have seen an increase in performance. Please use the troubleshooting thread posted to post your specs and issues.

+1 vote   reply to comment
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Developer & Publisher
Monochrome LLC
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Release date
Released Oct 24, 2013
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