This guide covers the steps required to publish your content to the workshop.
Install LambdaSDK
Before you can publish your weapon finish, you will need to ensure that you have Lambda SDK installed, as this contains Citadel, the tool to package up your content for publishing on the workshop.
Generate Metadata
Weapon Finishes
Click on the button below, you'll be sent to the Content Creator dashboard where you can generate your Paint Kit Metadata. (Opens in a new tab)
Once you have gone through the wizard, you will be able to download your metadata file, you need to include this in your Lambda Citadel project.
Music Kits
Click on the button below, you'll be sent to the Content Creator dashboard where you can generate your Music Kit Metadata. (Opens in a new tab)
Once you have gone through the wizard, you will be able to download your metadata file, you need to include this in your Lambda Citadel project.
Stickers
Click on the button below, you'll be sent to the Content Creator dashboard where you can generate your Music Kit Metadata. (Opens in a new tab)
Gather your assets for Citadel
Citadel brings all of your assets together for pubishing in one simple file container.
For Weapon, Knife and Glove paint kits, there are three category of files:
- Materials - This is where you put your finalised materials in VTF format
- Source - This is where you include your source materials such as a PSD or project file, this is required.
- Metadata - This is where you put the .lambda_paint file you exported from the Content Creation Panel.
For Music kits, there are trhee category of files:
- Assets - For cover art and background images
- Sound - For the music files
- Metadata - This is where you put the .lambda_music file you exported from the Content Creation Panel.
Minimum Requirements
Weapon Finishes
For weapon, knives and gloves you only need to include 2 files at minimum, these are:
- materials/albedo.vtf
- metadata/your_paintkit.lambda_paint
While Source files are not required, we are unlikely to accept any items which do not include them.
Music Kits
For music kits, you will need to include:
- Cover image
- Music Files (See GUIDE HERE)
Compiling your project
Open Lambda Citadel from the SDK launcher

Create a new project and fill in all the required fields:

You can then start importing all the required files for your paint kit

Once you've added all your required paint kit files, it will look something like this:

You can now click the "Compile" button at the top, and Citadel will do some checks to make sure you've got everything right, and if you have it will output a lambdaws file for upload on the Workshop.

You can then click on "View Output Folder" to see the compiled file:

You can now use this file for upload on to the Workshop