Project Zomboid (Dedicated Server) stores its config files at %USERPROFILE%\Zomboid\Server on Windows. That folder holds the server rule set — multipliers, timers, slot counts and the admin list. Checkpoint64 already knows it, backs it up automatically and keeps earlier versions, so a config that got reset is one click from restored.
Where Project Zomboid (Dedicated Server) settings are stored
- Windows —
%USERPROFILE%\Zomboid\Server - macOS —
~/Zomboid/Server - Linux —
~/Zomboid/Server
How to open the config folder
- Windows — press Win+R, paste
%USERPROFILE%\Zomboid\Server, and press Enter. - macOS — in Finder press Cmd+Shift+G (Go to Folder) and paste
~/Zomboid/Server.
Backing up Project Zomboid (Dedicated Server) settings automatically
- Install Checkpoint64 (free) and pick Project Zomboid (Dedicated Server) — the config path above is already preset.
- Auto-backup watches the folder and uploads a new version whenever it changes, keeping full history.
- Restore any version in one click after a patch resets your settings, a file verification restores the defaults, or you move to a new PC.
For the deeper story — what resets a config and how rollback works — read the full Game Config Backup guide.
The ports this server listens on, and how to skip forwarding them when it runs on your own PC, are on the Project Zomboid (Dedicated Server) ports page.