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Installation

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Step 1: Subscribe to ZombieBuddy on Steam Workshop

Step 2: Installation is required ONLY ONCE for ZombieBuddy itself.

🪟 **Windows:

Option A: Automated Installer (Recommended)

  • Download the latest ZombieBuddyInstaller.exe from SourceForge/GitHub Releases
  • Run the installer and choose Install or update ZombieBuddy.
  • Choose what launch mode to patch:
    • Both (recommended): patches Normal Launch and Alternate Launch.
    • Normal Launch: then choose ProjectZomboid64.json, Steam launch options, or both.
    • Alternate Launch: patches ProjectZomboid64.bat.
  • The installer shows every system change first and asks for confirmation before applying it.
  • If Steam launch options need to be changed, the installer will ask you to close Steam at that point.
  • The same installer can also uninstall ZombieBuddy later: run it again and choose Uninstall ZombieBuddy.

Option B: Manual Installation

  • Copy ZombieBuddy.jar and zbNative.dll from

C:\Program Files (x86)\Steam\steamapps\workshop\content\108600\3619862853\mods\ZombieBuddy\libs\

  • to your Project Zomboid folder:

C:\Program Files (x86)\Steam\steamapps\common\ProjectZomboid\

  • Open Project Zomboid's launch options in Steam
  • Add this launch option:
  • -agentlib:zbNative --

  • ⚠️ IMPORTANT: The -- at the end is mandatory - do not omit it!

  • If you use the game's Alternate Launch option on Windows, set the ProjectZomboid64.bat _JAVA_OPTIONS line to:
    SET _JAVA_OPTIONS=-agentlib:zbNative

🍎 macOS / 🐧 Linux:

  • Copy ZombieBuddy.jar from the mod's libs/ directory to:
    * macOS: ~/Library/Application Support/Steam/steamapps/common/ProjectZomboid/Project/Zomboid.app/Contents/Java/
    * Linux: ~/.steam/steam/steamapps/common/ProjectZomboid/projectzomboid/
  • Open Project Zomboid's launch options in Steam
  • Add this JVM argument: -javaagent:ZombieBuddy.jar --
  • ⚠️ IMPORTANT: The -- at the end is mandatory - do not omit it!

Step 3: After this setup, all mods that require ZombieBuddy will work automatically!