Your first step is to download the two tules required for this:
- XrCompress for LotZ[modio.stalker-game.com] - this will be the packer for your mod to install and add directly to Steam:
- SteamCMD - the official utility for adding your mod directly to the Steam Workshop.

First you need to create a folder that will completely repeat the structure of the gamedata folder of the original Stalker in order to pack these files in the .pack format - I will do this using the example of a mod to change the Non Stop can to a classic one from SoC.

In the root folder “classic” created a structure of folders and files as they should be in the gamedata folder itself (you can name the folder as you like - not necessarily "gamedata")

Now the folder is ready for further conversion to pack format via XrCompress:
- Run a command prompt as administrator
- Enter cd %path% (the path to your bin folder “C:\Users\username\Downloads\bin” - where it was for me)
- Next, enter the command:
- It is important to do all this on the system drive C!



After that, we will get the .pack file with the name of your folder, which must be edited and changed to the name gamedata.pack - “C:\gamedata.pack”. Example:

✅ Now your mod file has been successfully packed in the format required for further uploading it to the Steam Workshop.

Now you need to create a separate folder where your mod and all the files to add it will be stored - in the example, the folder will be “mod_classic”, but you can name it whatever you want, it will contain the “mod” folder where the .pack file, .vdf text file with information about the mod and 512x512 image for the cover will be stored.


Create a file in the “.vdf” format and enter this value for editing:
"changenote" - leave empty
"publishedfileid" - leave empty

☢️ID-codes for the parts of the trilogy 🆔:
2427410 - The Shadow of Chornobyl - Enhanced Edition
2427420 - Clear Sky - Enhanced Edition
2427430 - Call of Prypiat - Enhanced Edition

Example:

Launch the downloaded SteamCMD.exe utility and wait until it is configured so that the Steam> line appears to write the login command.

Now you need to log in to your Steam-account through this utility (don't worry, it's official from Steam)
❗Be sure to enter your Steam login, not your current nickname❗


After successful authorization, you are now at the final step of creating your own mod.
Now you need to enter the following command:




❗After downloading, the mymod.vdf file will update its ID for updates (content updates), if you need to replace/update the mod files - it is better not to lose this code and the .vdf file❗

Congratulations, your mod has now been uploaded to Steam Workshop and is available for download and editing!