Knox Safehouse
Download

Install Knox Safehouse

What your PC needs, how much memory to give the server, and every step from the download to the first friend inside. About 20 minutes the first time.

What you need

For the app

  • Windows 10 or 11, 64-bit.
  • Nothing else to install: the .exe brings everything it needs.
  • The Workshop inside the app uses Microsoft Edge WebView2, which most PCs already have. If it is missing, the app tells you and everything else works.

For the server

  • About 7 GB free on the disk, plus room for worlds and mods.
  • Internet to download the server and the mods. No Steam account needed for the server.
  • Enough memory: see the calculator below.

For your friends

  • Their own Project Zomboid on Steam.
  • The same game version (Build) as the server.
  • The same mods. A code from the app shows them what is missing.

How much memory does the server need?

Move the sliders. It is an estimate, the same one the app shows in Server › Resources.

Give the server4.5 GB

Your PC should have at least9 GB

The PC needs extra memory for Windows (about 4 GB) and, if you play on it too, for the game (about 6 GB).

Step by step

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Tick each step when it is done. This browser remembers where you stopped.

  1. Download the .zip

    It holds KnoxSafehouse.exe and a read-me with these steps. Unzip it to any folder.

    Download for Windows

  2. Check the file (optional)

    To be sure the file is the real one, open PowerShell in that folder and run this command. The result must be equal to the code on the download section.

    Get-FileHash .\KnoxSafehouse.exe -Algorithm SHA256

  3. Open KnoxSafehouse.exe

    Windows may show a blue warning, because the app is not digitally signed yet. Click “More info” and then “Run anyway”.

  4. Choose how to use it

    • Install on this PCFor your user only, no administrator. A shortcut in the Start menu and an entry in Windows Settings › Apps.
    • Portable modeEverything stays in a folder next to the .exe (on a USB stick, for example). No shortcuts.
    • Not nowJust have a look around.

  5. Install the server

    The app downloads the game's official server (about 7 GB). The first time takes a few minutes; you can keep using the PC.

    In the app: Server › Install / update server

  6. Create the server

    A wizard in 5 steps: install, settings (name, passwords, players), network, mods and a summary of what will be written. Nothing is changed before you confirm.

    In the app: Home › Create server

  7. Add mods (optional)

    Paste a Workshop link or pick mods in the Workshop inside the app. The mods they need come in by themselves, in the right order.

    In the app: Mods › Add, or the Workshop tab

  8. Open the way for your friends

    Create the firewall rule (Windows asks for permission once). If your friends play from another home, also open UDP ports 16261 and 16262 on your router.

    In the app: Friends › Network › Create rule…

    Guide: opening ports on the router

  9. Start and invite

    Press Start. When the server shows “On the air” in green, copy the invite and send it to your friends in private.

    In the app: Server › Start, then Friends › Network › Copy details for friends

Update and uninstall

Updating

The app can tell you when a new version is out (Settings). Download it from this site: your servers, mods and settings stay as they were.

See what changed in each version

Uninstalling

In the app's Settings (Uninstall) or in Windows Settings › Apps. You see the list of what the app created and delete only what you choose. The game, Steam and the mods you subscribed to on Steam are never touched.

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