Dive into the zombie apocalypse with Zombie Panic! Source: a cooperative, survival-horror first-person-shooter. A fast-paced standalone modification.
Recent Reviews:
Mixed (149) - 69% of the 149 user reviews in the last 30 days are positive.
All Reviews:
Very Positive (4,971) - 89% of the 4,971 user reviews for this game are positive.
Release Date:
Dec 28, 2007

Sign in to add this item to your wishlist, follow it, or mark it as not interested

Play Zombie Panic! Source


Recent updates View all (246)

December 12

Ushering In A New Era!

It's finally here! It has been a long road, with a lot of obstacles and trials. Our team could not have foreseen the enormous amount of work this update would be when we first set out to bring this game an update it truly deserves. But we kept going because all of you supported us - this update is a testimony to what a dedicated community such as ours can achieve!

You can read the entire v3.0 Changelog HERE.
And the v3.0.1 Changelog HERE.

Or check our Frequently Asked Questions thread for more information about the v3.0 update, or ask us any questions.

We'll need your help!

In our last announcement, we explained how many problems we ran into with code that was ported over from ZPS v2.4, and that it forced us to rewrite many sections of code in attempt to get things working properly. We had very little time to playtest these changes before release, and we even had to make last-minute fixes/changes - which means it's very likely that there will be bugs/issues that we weren't aware of.

In order for us to fix these issues, we'll need your help reporting them to us!

There's two ways to report bugs or issues to us:
  1. Start a discussion on our Steam Community Hub's Discussion Boards under the Bug Reports & Issues sub-forum.
  2. Post a thread on our new official website's forums in the appropriate sub-forum under Bug Reports & Issues.

We've already received a ton of useful reports from all of you, and we've even been there in-game with you to witness some of these issues ourselves. Many of them have been fixed, and we're working on fixing even more of them. Thanks for all of your help, please keep the feedback coming!

SourceMod Banned due to Security Breach!

Due to a high security breach regarding our gamebans, we've come to the decision that SourceMod will now be fully banned from being used in Zombie Panic! Source. This ban will likely be permanent, because users can perform extremely malicious actions with the aid of SourceMod, and this absolutely cannot be allowed to happen. If these issues with SourceMod ever get addressed, then perhaps we can revert the ban, until then this ban will be permanent.

This breach would allow users to spoof their own SteamIDs, completely bypassing our gamebans, as well as server bans. Besides being completely immoral, this is also against the Steam Subscriber Agreement (SSA), and Steam Online Conduct (SOC). Any users found to be doing this will be reported to Valve by us, and have their accounts completely banned.

If you encounter anyone abusing this cheat/exploit, please gather evidence (preferably video from in-game) proving that this occurred, as well as a link to their Steam Profile, and any other pics or links that might be necessary. E-mail them to us at "support@zombiepanicsource.com".

We've decided to postpone the implementation of this ban for 3 weeks in order to give you all time to program your plugins in AngelScript. You may currently be unable to do some of the things required for your plugins to work, but AngelScript is still very early in its implementation into ZPS. You can send us your requests and suggestions for new hooks for your plugins under the Ideas & Suggestions sub-forums on either our Steam Community Hub Discussion Boards, or our new official forums.

We're very sorry to have to punish all of you because of the actions of a few. But due to the amount of malicious things one could do with SourceMod, this was the only option we had to completely solve the problem. We hope that you all understand, we didn't want to do this, but because of Uncle Fred we've been forced to.

Addressing Abusive Behavior Within Our Community

With the v3.0 update will come the removal of several community members who have been proven extremely abusive and disruptive beyond forgivable measure. These members will have their accounts permanently banned from playing Zombie Panic! Source with this update (in a few weeks once we kill SourceMod). We'll also be prepared to take action regarding any similar situations that occur in the future, should it be necessary.

Most notably of these members is (SL) Uncle Fred, owner of the SL CABIN and SL COMMUNITY servers. He spoofed his and others Steam IDs to get them unbanned from the game (the reason we've had to ban SourceMod). He was also proven, through a large community investigation, to be the main culprit behind the ocean of server attacks that have hit servers all over the community over the past years. This was done by taking advantage of an exploit related to the server's RCON (Remote Control) port on the Source 2007 Engine.

An extraordinary amount of evidence was collected and brought to us to review. Our team agreed that it proved him guilty, thus we made the decision to permanently ban him from playing ZPS. We have also permanently banned other community members who were proven to be abusing this exploit too.

We understand that this is a controversial decision as it jeopardizes the future of the SL servers, where a lot of players go to play. That is why we invite you all to review and discuss the evidence that we can publicly share. Please be sure not to violate Steam Rules & Guidelines when posting - we may have been a bit lenient when these posts were made due to the situation, but we will be stricter this time. We don't want there to be any arguing, or rude/inappropriate posts made regarding this subject.

We also advise that you stay away from Uncle Fred, and his servers. Because by playing there you are inadvertently supporting his actions, and behavior - which have caused great harm to the community, and will certainly continue to do so. This is your community, and it is what you make it. We urge you all to protest against Uncle Fred and the SL servers for his malicious, unforgivable actions.

We want to thank every single one of you who have helped in bringing this behavior to justice. We specifically want to show our deep gratitude to Silence and Janaz Leonheart, of the now late Vertigo Gaming Community, for helping us understand and fix the exploit, as well as helping the community protect their servers against the attacks. We sincerely apologize for not acting on this matter sooner.


It's important to note that we've included a number of conditions that must be met in order for the achievements to be enabled. This is to prevent players from gaining an unfair advantage in earning them through custom content, such as maps or gameplay modifying plugins.

Since the achievements are designed around official content, we simply can't vouch for the balance being proper in custom maps, or on servers with modified gameplay. Therefore, the achievements can only be unlocked while playing on unmodified official maps (with unmodified map scripts).

We've created this thread to explain what those conditions are, and to answer any questions you may have about them.

Review Us!

After playing v3.0, tell us your opinion about the changes by reviewing Zombie Panic! Source!

Or share your opinion with us in a thread, either on our Steam Community Hub Discussion Boards, or on our new official forums.

Ideas and suggestions can also be shared with us on our Steam Community Hub Discussion Boards, or on our new official forums!

Feedback and suggestions are exactly what turned ZPS into what it is today, and your opinions will continue to help mold this game during our journey into the future together! We look forward to hearing your opinion!

AngelScript Plugins

We understand that the capability of AngelScript, and the amount of available plugins are pretty limited right now. But AngelScript is very early in its implementation into ZPS, there will be many more improvements to come. We'll be awaiting your requests and suggestions for new plugins (as long as they fit stock gameplay or we see a use for them, if not perhaps someone else from the community will create it for you), and hooks required to create your own plugins.

These requests and suggestions can be shared with us on our Steam Community Hub Discussion Boards, or on our new official forums!

We also have a Plugins sub-forum on our new official forums where you can share your plugins with the community!

You can view the ZPS AngelScript API here, to see the list of currently available hooks.

ModDB's 2017 MOTY Awards

Phase 1 of the ModDB 2017 Mod of the Year Awards has ended, and Phase 2 has begun. This means the Top 100 have been selected, and there will be another 10 days of voting to determine the victor of 2017!

Last year we ranked in at # 85, and we made it into the Top 100 again this year thanks to all of you! We're very grateful to have such an amazing and supportive community! But we're going to need your help again this year ranking better in Phase 2, let's see if we can do it!

Please vote for us again, but don't forget about your other favorite mods! Voting will enter you into the draw to win games from their #modlove collection.

Tell your friends that Zombie Panic! is back from the dead!

See you in-game,

- Zombie Panic! Development Team

Follow us on social media at:
21 comments Read more

December 11

v3.0.1 Changelog

Update: We're re-releasing a new patch with additional fixes for the annoying shuffle bug, zpo_keretti regarding the radio obj and updates for ZP Anti Cheat (ZPAC)

  • Fixed an exploit where if you spammed F1, or F2, you it would skip some functions
  • Fixed an exploit with explode and kill commands
  • Fixed where gagging someone didn't work
  • Fixed where vote ban and vote gag would crash the server if the client has left the game beforehand
  • Fixed VR related crash (Steam VR will still show when going to the Options, nothing we can do about that)
  • Fixed where the score board would cause a crash if it wasn't fully initialized
  • Fixed admin gag and ungag timer values
  • Fixed where Game Instructor would cause server to freak out with 17 or more players.
  • Fixed where cl_playerspraydisable would ignore if it was disabled
  • Fixed where on round end, it would print "Survivor Win" even tho the survivor(s) died
  • Fixed the music volume bar not setting the music volume properly
  • Fixed a vulnerable security issue, that could overwrite VAC or GameBans.
  • Fixed crosshair convar not working properly

  • Updated Engine.EmitSound to play from the player and not from the world, and fixed the dB levels
  • Added forward function HL2MPRulesInitialize()
  • Added Globals.CurTime

  • Updated zpo_subway
    • Moved I/O for plan B door to different ent hopefully fixed premature opening
    • Changed security room door to a breakable prop_door_rotating
    • Changed obj list text to Train Leaves Very Soon insted of Few Minutes

  • Updated zpo_zomboeing
    • Scaled back capturepoint speed multipliers cuz they were too fast
    • Changed scripting on starting zombie spawns in conveyor area to work more betterz
    • Fixed texture on police tape

  • Updated zpo_tanker
    • Added player respawn delay, which automatically updates on playercount

  • Updated zpo_keretti
    • Fixed two granades getting stuck on the truck.
    • Fixed one minor bug on final obj trigger escape/win.

  • Updated zps_deadend
    • Fixed police line brush not being not solid

  • Updated zps_keretti
    • Fixed two doors stuck at same location in second floor offices.
    • Fixed soundscapes not playing
    • Updated fire sounds at zombie spawn.

  • Updated zps_policestation
    • Adjusted some zombie spawns
    • Tweaked AS balance script
    • Update the loading screen and changed spawn point of observer camera

  • Updated zps_sapidcerebrum
    • Fixed zombie spawn doors
    • Fixed the elevator
    • Fixed the missing texture in the conference room
    • Disabled the shadows for the curtains in the costume shop

  • Fixed models/custom/aircondition.mdl reading a broken VMT

  • Updated weapon_chair animations
  • Updated weapon_shovel and weapon_sledgehammer attack rate (Reduced by 1 seoond)
27 comments Read more


“The thrill of fending off a zombie hoard who are being controlled by real people is great!”

“Zombie Panic! Source is a truly one-of-a-kind experience for survival FPS lovers.”

“If you love a fast paced, first person Zombie shooter, this is your game. The positives of this game far outweighs any improvement areas that could be identified.”
Zombie Gaming

About This Game

Dive into the zombie apocalypse with Zombie Panic! Source: a cooperative, survival-horror first-person-shooter. A fast-paced standalone modification.
Choose your team as the undead or a survivor. Enjoy their unique abilities, weapons, and challenges in this high-paced, action-packed thriller.

The Teams

As a survivor, unlock large arsenals of firearms, explosives and improvised melee weapons. Can you stop the waves of undead? Will you engage the horde head-on, or barricade and fortify while your friends play sniper? If all else fails, Panic! Then run as if your lives depend on it… for they surely do.

As a zombie, you’re free to hunt the living like the rabid beast you are. Feast upon their flesh and unlock your inner berserker. Heightened zombie night-vision gives you the upper hand in dark environments. Infect survivors as the carrier zombie (patient zero), to weaken their defenses, then sadistically watch them turn on each other. Use it all to your advantage to strategics, ambush, conquer and destroy your oblivious living counterparts.


Zombie Panic! Source hosts a variety of game modes for excellent replayability. Explore the zombie apocalypse with:

  • Survival Mode: Put your ability to scavenge and survive to the test. Easily the top player choice.
  • Objective Mode: You’re on a mission. Whether it’s to escape or defeat the horde, you’d better use your brainz to find those keys, get the power back on, hack that computer, and get to the chopper! Otherwise… I think you know what happens.
  • Hardcore Mode: For experienced zombie connoisseurs, you and your teammates get to enjoy pitting yourselves against extra tough foes, and even rougher odds.

System Requirements

    • OS: Windows® 7 (32/64-bits)/Vista
    • Processor: 1.7 GHz Processor or better
    • Memory: 2 GB RAM
    • Graphics: DirectX® 9 level Graphics Card
    • DirectX: Version 9.0c
    • Network: Broadband Internet connection
    • Storage: 8 GB available space
    • Sound Card: DirectX 9.0c compatible sound card
    • OS: Windows® 7 (32/64-bits) or above
    • Processor: Intel® Dual Core 2.4 GHz Processor
    • Memory: 4 GB RAM
    • Graphics: Video Card Shader model 3.0. NVidia 7600, ATI X1600 or better
    • DirectX: Version 9.0c
    • Network: Broadband Internet connection
    • Storage: 8 GB available space
    • Sound Card: DirectX 9.0c compatible sound card
Customer reviews
High Volume of Reviews Detected:
Exclude  or  View Only
Review Type

Purchase Type


Date Range
To view reviews within a date range, please click and drag a selection on a graph above or click on a specific bar.

Show graph

Display As:
Review Beta NEW!
When enabled, will sort reviews by new Helpfulness score. Read more about it in the blog post.
Show graph
Hide graph
Review Helpfulness Beta Enabled
There are no more reviews that match the filters set above
Adjust the filters above to see other reviews
Loading reviews...