Zombie Panic! Source

Zombie Panic! Source

Zombie Panic! Team · October 3, 2008 · Free to Play, Zombies, Multiplayer, Action, Horror

Zombie Panic! Source is free to play — no purchase needed. We track it so you know if that ever changes.

PC
Very Positive85% · 7,86427playing now
This game is free to play. Get it on Steam →

Trailers & screenshots

Watch the Zombie Panic! Source trailer →

Zombie Panic! Source price

Zombie Panic! Source is free to play — there is no purchase price, on Steam or anywhere else we track. We keep watching it, so if it ever stops being free the price history on this page will show when that happened and what it changed to.

About Zombie Panic! Source

✦ AI summary

Lead a team of Survivors fighting off relentless zombie hordes with diverse weapons and tactics, or play as the Undead with supernatural abilities to hunt and infect the living in this action-packed cooperative mod. Zombie Panic! Source stands out with asymmetrical team gameplay, multiple modes including Survival and Objective-based missions, and nearly two decades of community-created maps and custom content that keep the apocalypse fresh.

Dive into the zombie apocalypse with Zombie Panic! Source (ZPS): 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 action-packed mod!

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.

The Gamemodes

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 under a timer.
  • Custom Made: Enjoy all kinds of unofficial gamemodes by community modders that push the game to its limits using AngelScript or SourceMod plugins.

Community Servers and Workshop

Zombie Panic! Source wouldn't be half the game it is without nearly two decades of community content and support. Over the years this has included countless custom maps, Workshop add-ons, and community servers running all sorts of modified gameplay that might fit your style! Official, custom-made, or both - pick your favorite!

Zombie Panic! Source — game info

Platforms
Windows, Linux / SteamOS
Steam Deck
Playable
Player modes
Online PvP, Online co-op
PC Game Pass
Not included
More games like this:Linux games

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Recommended Sep 12, 2026
I Need Friends To Make My Experience More Enjoyable... Anyone Looking to play? Overall Rating: 2.5 / 5 Zombies Tripping Over Other Zeds
2 found this helpful
Recommended Sep 28, 2026
I need BRAINS!, not sure what else you need great game.
Recommended Sep 27, 2026
Childhood game full of memories I recommend to anyone who wants to enjoy fun community human vs zombie game with classical half-life2 mods
Recommended Sep 21, 2026
Ngl way better than i expected, good value for the price...
Recommended Sep 15, 2026
yes
Not recommended Sep 13, 2026
I prefer Counter-Strike over Counter-Strike: Source. I prefer Half-Life over Half-Life: Source. I prefer Day of Defeat over Day of Defeat: Source. I prefer Deathmatch over Deathmatch: Source. I prefer ... well actually I hate both versions of zombie panic source or not.

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