How to add Mods to Foundry Dedicated Server

How to Add Mods to Your Foundry Server

Want to spice up your Foundry server with mods? This guide walks you through the step-by-step process of uploading and activating Steam Workshop mods using the EVLBOX Foundry Mod Loader. Let’s get started!

Step-by-Step Guide: Uploading Mods to Your Foundry Server

1. Power Off the Server

Before doing anything, make sure your server is stopped from the EVLBOX Nitro Panel.

2. Download Your Workshop Mods

Go to Steam and subscribe to the mods you want.
On your computer, navigate to:

Steam\steamapps\workshop\content\983870\

The 983870 folder is specific to Foundry.

Mods are often found under this path:

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

…but may be located on a different drive. Refer to the image below if you’re unsure:

Workshop Content Path

3. Zip the Workshop Mods

Inside the 983870 folder, select the mods you want.
Right-click and choose:
Send to → Compressed (zipped) folder

✅ You can zip one or multiple mods. The EVLBOX Mod Loader handles both formats.

Zip Workshop Mods

4. Upload to the mods-upload Folder

Log in to the EVLBOX Nitro Panel.
Go to Files for your server.
Open the mods-upload folder (not the Mods folder).

Mods Upload Directory

5. Drag and Drop Your Zip Files

Drop your zipped mod files into mods-upload.
Do not extract them!

Drag and Drop Mods

6. Restart Your Server via Terminal

In the Nitro Panel, click Terminal from the left navigation.
Click Restart.

The console will launch the EVLBOX Foundry Mod Loader, showing installed mods.

⚠️ Sometimes multi-mod zips show duplicate mods. This is normal and won’t cause issues.

Important Notes About Mod Compatibility

No Automatic Syncing

Foundry does not support auto-syncing mods with players. Everyone who joins your server must have the exact same mods installed.

We strongly recommend using a Steam Workshop Collection to make this easy.

👉 How to Create a Steam Collection for Mod Syncing

Most Mods Require the “Unfoundry” Mod

To work correctly, most server mods need Unfoundry:
👉 Unfoundry on Steam Workshop

Not All Mods Are Supported

Some mods are not compatible with servers and may be auto-deleted during loading.

How to Remove Mods

Stop your server.
Go to the /Mods folder.
Check the mod folders you want to remove.
Use the trash icon or right-click → Delete.

Also clear the matching zip files from mods-upload to prevent reloading.

Early Access Warning

Mods for Foundry are still in early access. They may be buggy or unstable.

Need Help Connecting?

See our companion guide:
👉 How to Connect to a Foundry Server

Ready to mod your world? Upload your favorites and enjoy a customized Foundry experience with EVLBOX!