Guide to DayZ JSON Files (Quick Overview)

DayZ uses JSON files for configuration, mod data, and server settings. This post covers key file types, locations, structure, and tips for editing safely.

10. Advanced: Scripting with JSON

If you write DayZ scripts (Enforce Script), you can parse JSON:

JsonSerializer json = new JsonSerializer();
array<string> lines = File.ReadAllText("$profile:myconfig.json");
MyConfig config = json.Deserialize<MyConfig>(lines);

But for external tools (Python/Node.js), you can read/edit JSON using standard libraries.

Mod-Specific JSON Files

Many mods (like CF, Trader, BaseBuildingPlus) use JSON for configuration.
Example: CF → cfglobals.json lets you tweak vehicle spawn limits, zombie behavior, or server FPS.

7. JSON Modding for Beginners – A Safe Workflow

  1. Install a local server (DayZ Server tool on Steam).
  2. Copy the default mission (mpmissions/dayzOffline.chernarusplus) and rename it.
  3. Edit one JSON file – start with globals.xml (low risk).
  4. Launch server, test changes.
  5. Move to types.xml – change one item category, test.
  6. Use community tools – DayZ Loot Simulator or JSON Schema validators.

Case 1: Rare Guns Only at NWAF

Edit types.xml – find M4A1. Reduce nominal to 3, set max to 1, and ensure its <usage name="Military"/> is the only zone. Then increase spawn weight in cfgeconomycore.xml for the airfield.