Zombie Panic! Source

First-person zombie survival shooter with survivors fighting player-controlled undead

Zombie Panic! Team · Released Oct 3, 2008

Action Adventure Casual Indie Free To Play

Reviews: Very Positive; 85% of 7,869
Recent reviews: Very Positive; 81% of 16 in 30 days
Playing now: 8; peak 24h 12
Steam Deck: Playable
Last update: 10 months ago; Oct 30, 2025

What is Zombie Panic! Source?

This free-to-play, first-person multiplayer shooter pits survivors against zombies during an outbreak. In survival and objective matches, survivors scavenge for weapons, barricade doors, and fight to hold out or escape, while zombies hunt and infect them.

For you if...

+you enjoy defending barricades with a team under pressure
+you like custom maps and community-made game modes

Not for you if...

−you want to play alone with computer-controlled teammates
−you dislike depending on other players to fill matches

What players say

85% of 7,869 reviews are positive · 81% of 16 in the last 30 days

Players praise the tension of survivor-versus-zombie matches, improvised barricades, and custom maps. Many complain that populated servers are hard to find, while some say recent updates have made the game worse.

Screenshots and trailer

Zombie Panic! Source system requirements

As published by the developer.

Minimum

OS: Windows 10/11
Processor: 2.4 GHz Dual Core or better
Graphics: Shader Model 3.0 support (NVIDIA 7600, ATI X1600 or better)
Memory: 2 GB RAM
Storage: 8 GB available space
DirectX: Version 9.0c

PC version details

DRM, required accounts, controller support and Steam features.

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows, Linux
Achievements: 106
Steam features: Workshop, Cloud saves, Family Sharing

Steam Deck: Playable

Default controller config not fully functional
Sometimes shows mouse, keyboard or non-Deck controller icons
Some text entry requires manually opening the on-screen keyboard
In-game text is legible on Steam Deck
Default graphics settings perform well on Steam Deck
External controllers are not supported for the primary player

Multiplayer and co-op

Languages

Full audio: English. Text only: Russian, French, Italian, German, Spanish - Spain, Danish, Dutch, Portuguese - Portugal, Portuguese - Brazil, Simplified Chinese, Spanish - Latin America, Swedish.