Stormforge's Durability checkbox lets you turn durability loss off for your world. Choose the Custom preset to set this alongside your combat and death settings.
Using Config Editor
- Open your Stormforge service in TCAdmin and stop it.
- Click Configuration Files, then Config Editor beside
settings.json. - Choose Custom under World Preset and untick Durability. Check the remaining Custom options before saving so they match how you want the world to play.

- Click Save & Exit and start the server again.
Tick the box again to restore the normal durability-loss setting. In the JSON file, the checkbox sets worldSettings.durabilityLossScale to 0 when disabled and 1 when enabled.
Using Text Editor
Stop the server and choose Text Editor beside settings.json under Configuration Files. Inside worldSettings, edit these existing entries:
"worldPreset": "Custom",
"durabilityLossScale": 0
Use 1 instead of 0 for normal durability loss. Leave the other settings in place, save and start the server again.