: Once downloaded, the game will appear in your Steam Library.

Note : Running the Source SDK Base 2013 Multiplayer (found under the "Tools" section in your library) may be required for some configurations or mod tools. System Requirements

: Download the Steam Client from Valve if you do not already have it installed.

: Search for "Zombie Panic! Source" in the Steam store or library.

ZPS is designed for accessibility and runs well on most modern and even older hardware. Minimum Requirement (Windows) Minimum Requirement (Linux) Windows 10/11 Latest Ubuntu LTS Processor 2.4 GHz Dual Core 2.4 GHz Dual Core Memory Graphics Shader Model 3.0 Support OpenGL compatible Storage 8 GB available space 8 GB available space Core Gameplay Modes Zombie Panic! Source - Valve Developer Community

(ZPS) is a cooperative, survival-horror first-person shooter modification of the Half-Life 2 engine. It pits a small group of survivors against a growing horde of player-controlled undead in a struggle for survival. How to Download and Install